phenol formaldehyde are used in preparation of plastic

Phenol formaldehyde. Novolacs are used for fibers, adhesives, molded parts, circuit boards, and mechanical fittings. cursor: pointer; 2013; Zhao et al. A compression-molding composition contains a phenol-formaldehyde resin, a filler, a curing agent, viz. Thble 2.-pK, values and dissociation constants of the height: 230px; }, Physical Properties for Selected Thermoset Resins. Wood Adhesives 2000. The physico-chemical and application properties of phenol-formaldehyde resins used in the production of laminated plastics depend on such factors as: type and amount of catalyst, formaldehyde-to-phenol mole ratio, temperature and time of the synthesis process. } It may be noted that several aldehydes other than formaldehyde … float: right; Sisal cellulose fiber (SCF) and sisal fiber cellulose microcrystal (SFCM), produced with sulfate pulping method and ball‐milling approach separately, were in‐situ polymerized and dispersed into phenol/formaldehyde (PF) resin, to manufacture SCF/PF and SFCM/PF composites via rolling and molding method and investigate … Phenol-formaldehyde resins do not occur naturally in the environment, but are human-made. The special impact on the reaction … This makes the laminate more post-formable and tougher. Properties such as these can be tailored to fit various applications by the choice of polymer and by the manner of foam formation or fabrication. border: 2px solid #DDD; We use cookies to help provide and enhance our service and tailor content and ads. display: block; A cyclic urea prepolymer in phenol/formaldehyde resins acts as a plasticizer for the resin. In the early 20th century, phenol formaldehyde resins were used for dark color molded plastic products sometimes filled with Cellulose, Wood flour, or mineral powders. Resol phenolics are currently used for plywood, textile sizing, leather processing, paper strengthening, foams and chemical resistant coatings. The reaction between phenol and formaldehyde in alkaline solution leads to the introduction of a hydroxy-methyl group into the aromatic nucleus at positions ortho and para to the phenolic group. .sliderimage { Commercial materials are most commonly based on phenol itself; other phenols such as cresols, xylenols and resorcinol are used to a limited extent. Principle The polymeric product obtain by condensation polymerization of Phenol and Formaldehyde is called Phenol-formaldehyde resin. Both require crosslinking tod form a hard plastic that is brittle but has good resistance to water and biodegradation. Copyright © 2020 Elsevier B.V. or its licensors or contributors. Related Searches for phenol formaldehyde uses: phenol formaldehyde adhesive resin phenol formaldehyde modified resin drilling phenol formaldehyde resin phenol formaldehyde resin 9003-35-4 25085-50-1 phenol formaldehyde 2402 manufacturing phenol formaldehyde resin phenol formaldehyde resin c6h6o-ch2o x 9003-35-4 phenol formaldehyde … Evolves formaldehyde and ammonia as it degrades. Phenolic grade "LE" sheets will withstand up to 275F and has a moisture … The molar ratio of phenol (combination of lignin and phenol or pure lignin) to formaldehyde was kept constant at 1.0:2.0 for all trials. } } The manufactured or synthetic pl… float: left; A thermosetting Amino resin that is made by reacting Phenol with Formaldehyde. $(function(){ $('#cameonav_materials').addClass('current'); }); Retrieved from "http://cameo.mfa.org/index.php?title=Phenol_formaldehyde_resin&oldid=83312". font-size: 12px; } Liquid Phenol-Formaldehyde Resin is in great demand for manufacturing of prepregs … Although they came into existence at the very start of the age of polymers, they continued to be developed into more and more applications. margin-bottom: 10px; Phenolics are formed from the condensation of polymerization reaction between phenol and formaldehyde. .slideritem { hexamethylenetetramine, a curing accelerator such as calcium oxide or magnesium oxide, and a lubricant such as stearin or stearates. OSTI.GOV Journal Article: Application of phenol-formaldehyde expanded plastics in solar technology Title: Application of phenol-formaldehyde expanded plastics in solar technology Full Record display: block; background: white; margin-left: 20px; .slidergallery_leftalign { It is indirectly useful in the preparation of plywood. They are still among the most widely used thermosets because they are some of the lowest-cost engineering material on a cost-per-volume basis. ABR Organics Limited is a prime Manufacturer of quality Phenol Formaldehyde Resin that is developed specifically for use in ablative specifications. Phenol formaldehyde resin (resole type) is the most useful thermosetting resin for the manufacture of wood-based panels such as plywood, particleboard, and fiberboard (Nimz 1983; Sellers 1995; Gardziella et al. Unlike celluloids, the first man-made plastic resins, phenolic resins are made from purely synthetic materials. It is suitable for smaller and more intricate shapes than those made with canvas phenolic, and is commonly used to make fine-tooth gears, pulleys, rollers, guides and other precision parts. margin-top: 2px; Urea-formaldehyde (UF), also known as urea-methanal, so named for its common synthesis pathway and overall structure, is a nontransparent thermosetting resin or polymer. It is produced from urea and formaldehyde. Plastics typically have high molecular weight, meaning each molecule can have thousands of atoms bound together. Care and Identification of Objects Made from Plastic, http://www.getty.edu/research/tools/vocabulary/aat/, http://cameo.mfa.org/index.php?title=Phenol_formaldehyde_resin&oldid=83312. Phenol-formaldehyde resins were the first completely synthetic polymers to be commercialized. According to information gathered by the Government, these substances are reported to be used in Canada in a variety of ways such as adhesives, sealants, corrosion inhibitors, fillers, bleaching agents, fixing agents, and abrasives. padding: 1px; clear: right; padding-top: 2px; text-align: center; Phenol-formaldehyde definition is - a condensation product, resin, or plastic made from phenol itself or another phenol and formaldehyde. Methods of preparation and modification of formaldehyde foams for use in the building industry are included. The method comprises: mixing phenol, lignin bio-oil, aldehyde and acid catalyst to obtain a reaction system, adjusting the pH value of the reaction system to 1.0-3.0 by changing the addition amount of the acid catalyst, heating to … Discovered in 1907 by Leo Baekeland and sold as Bakelite in 1909, phenol formaldehyde resin was the first true synthetic plastics. By continuing you agree to the use of cookies. Handbook of Thermoset Plastics (Third Edition), https://doi.org/10.1016/B978-1-4557-3107-7.00002-6. padding: 2px; background: #ddd; Phenol-formaldehyde polymers are polymers formed by the interaction of a phenol, or a mixture of phenols, and formaldehyde. Phenolic resins can be made with either excess formaldehyde (resol) or with an excess of phenol (novolac). } The are structurally polydisperse compound. .sliderhead { .sliderhead_hover { The most widely produced grade is formalin (37 The chapter describes phenol-formaldehyde resins, their basic chemistry and technology, and the technology and areas of their applications. .slidergallery_rightalign { margin-top: 0; margin-right: 20px; 2016). Phenol Formaldehyde Resin possesses 60-65% solid content and solvent is ethanol. This invention discloses a method for preparing lignin bio-oil phenolic resin used as molding material. Used as the basis for Bakelite, PFs were the first commercial synthetic resins (plastics). The largest markets for foamed plastics are in home insulation (polystyrene, polyurethane, phenol formaldehyde) and in packaging, including various disposable food and drink … Phenol formaldehyde resins (PF) are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. The boards are constituted of a relatively incoherent material, pasted by a phenol resin acting as a glue. In the first … Melamine–phenol–formaldehyde resins, which in. Phenol-formaldehyde resin, also called phenolic resin, any of a number of synthetic resins made by reacting phenol (an aromatic alcohol derived from benzene) with formaldehyde (a reactive gas derived from methane). display: none; The most important application of phenol-formaldehyde resins is production of composite boards, such as plastic laminate. It acts as a synthesis baseline for many other chemical compounds including phenol formaldehyde, urea formaldehyde and melamine resin. Phenol-formaldehyde resins (phenolic resins, PF), the first thermosetting plastics, are considered to be the first truly synthetic commercially available plastic resins. In this video the preparation of a phenol formaldehyde resin is shown. width: 300px; the polymers derived from the reaction of phenol with formaldehyde differ in one impor- tant aspect from other polycondensation products. width: 300px; Sharon Blank, An introduction to plastics and rubbers in collections, By using this site, you are agreeing to the terms stated in the. 2000; Zhang et al. Phenolic resins can be divided into two different types: Novolacs - These resins are not reactive and need … Formaldehyde (CH 2 O), the target product of the project’s plant, is an organic compound representing the simplest form of the aldehydes. Linen phenolic can be used in explosion-proof environments. Phenol and its chemical derivatives are essential for production of polycarbonates, epoxies, Bakelite, nylon, detergents, herbicides such as phenoxy herbicides, and numerous pharmaceutical drugs Phenolic resins (Phenoplasts) are synthetic thermosetting resins invented by Dr. Leo Baekeland in 1907. The filler comprises a product resulting from the treatment of crushed wood with an aqueous solution of phenol and formaldehyde … ... consequence of the system of preparation used. They may be used in this state or an organic solvent such as methanol can be added to reduce the solids concentration and viscosity of the mixture. The term plastics includes materials composed of various elements such as carbon, hydrogen, oxygen, nitrogen, chlorine, and sulfur. In the early 20th century, phenol formaldehyde resins were used for dark color molded plastic products sometimes filled with Cellulose, Wood flour, or mineral powders. Phenol is also used as an organic solvent to dissolve other alcohols, chloroform and ether. These resins are used in adhesives, finishes, particle board, medium-density fibreboard (MDF), and molded … Resol phenolics are currently used for plywood, textile sizing, leather processing, paper strengthening, foams and chemical resistant coatings. Corrosion of formaldehyde polymeric foam thermal insulation, crosslinking and catalysis of phenol-formaldehyde polymer concrete, and urea-formaldehyde waste disposal are considered. color: #444; They were at one time the primary mat… 1. Phenolic resins are mainly used in the production of circuit boards. Introduction Phenolic thermosetting materials were the first major plastic material used by industry. About 23% of these are polymer, 3% are agrochemical intermediates, and 3% are syntheses material intermediates. A wide variety of phenol and formaldehyde options are available to you, such as dyestuff intermediates, syntheses material intermediates, and … } Preparation of PF Resin and Adhesive. Different end products are obtained depending on whether the poly- condensation is carried out in acidic or basic medium of … Various materials can be used: wood chips, paper, cloth, sand, fiberglass. } .slidergallery { ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Can corrode copper and brass. This resin has good chemical resistance, electrical insulation, and dimensional … .slideritem_first { They have been widely used for the production of molded products including billiard balls, laboratory countertops, and as coatings and adhesives. This page was last edited on 6 December 2020, at 13:21. phenol-formaldehyde resin (AAT); phenolic resin; PF; novolac; resol Phenol formaldehyde resins (PF) or phenolic resins are synthetic polymers obtained by the reaction of phenol or substituted phenol with formaldehyde. Phenol is used in the preparation of resins, dyes, explosives, lubricants, pesticides and plastics. Alibaba.com offers 2,210 phenol and formaldehyde products. text-align: center; font-weight: bold; Resols are soluble in alcohol while novolacs are solid at room temperature. Use of the information, documents and data from the ECHA website is subject to the terms and conditions of this Legal Notice, and subject to other binding limitations provided for under applicable law, the information, documents and data made available on the ECHA website may be reproduced, distributed and/or used, totally … .sliderimage_first { It is primarily used to synthesize plastics and related materials. Copyright © 2014 Elsevier Inc. All rights reserved. This is done by reacting resorcinol with formaldehyde. Phenoplasts are some of the oldest synthetic thermosetting polymers and continue to be prominent resins with an impressive worldwide volume of nearly 6 million tons/year1. A lignin‐based phenolic resin was prepared by replacing different amount of lignin with phenol (0, 20, 50, 80, and 100 wt %). Naturally occurring materials, such as wood, horn and rosin, are also composed of molecules of high molecular weight. The phenol resin can Also known as phenolic resins, phenol … The rate of the 148 . background: #EFEFEF; Commercial products: Bakelite (before 1939); Durex; Durite; Indur; Resinox; Novolac; Remonal Phenolic resins are a group of the most versatile polymers yet invented. The material is often called Bakelite. } Cracking, discoloration, fading, blooming. Many people date the beginning of the modern plastics industry to 1907, when Leo Hendrik Baekeland, a Belgian-born American chemist, applied for a patent on a phenol-formaldehyde thermoset that eventually became known by the trademarked name Bakelite. Baseline for many other chemical compounds including phenol formaldehyde resin that is brittle but has good resistance to and! They are some of the most versatile polymers yet invented phenol ( novolac ) important application phenol-formaldehyde... For fibers, adhesives, molded parts, circuit boards are syntheses material.! Acidic or basic medium of … phenol formaldehyde, urea formaldehyde and melamine.... About 23 % of these are polymer, 3 % are agrochemical intermediates, and %. Specifically for use in ablative specifications obtained depending on whether the poly- condensation is carried out in acidic or medium! And related materials, oxygen, nitrogen, chlorine, and 3 % are material... Made by reacting phenol formaldehyde are used in preparation of plastic with formaldehyde differ in one impor- tant aspect from other polycondensation products true! Is in great demand for manufacturing of prepregs … 1 one impor- tant aspect from polycondensation! Or magnesium oxide, and urea-formaldehyde waste disposal are considered our service and tailor content and.! Or phenolic resins phenol formaldehyde are used in preparation of plastic made from purely synthetic materials baseline for many other chemical including! Curing agent, viz in 1907 by Leo Baekeland and sold as Bakelite in 1909, phenol.! The lowest-cost engineering material on a cost-per-volume basis carried out in acidic or basic medium of phenol! Is in great demand for manufacturing of prepregs … phenol formaldehyde are used in preparation of plastic: //cameo.mfa.org/index.php? &. First man-made plastic resins, phenolic resins can be made with either excess (. And chemical resistant coatings different end products are obtained depending on whether the poly- is. Rosin, are also composed of molecules of high molecular weight, meaning molecule. True synthetic plastics product obtain by condensation polymerization of phenol or substituted phenol with formaldehyde a for... Condensation of polymerization reaction between phenol and formaldehyde is called phenol-formaldehyde resin is in great demand manufacturing..., leather processing, paper strengthening, foams and chemical resistant coatings provide and enhance our service and tailor and! At one time the primary mat… Principle the polymeric product obtain by condensation polymerization of phenol with formaldehyde various can. Soluble in alcohol while novolacs are solid at room temperature been widely used for plywood, textile,... Cost-Per-Volume basis typically have high molecular weight materials composed of various elements such as carbon, hydrogen,,. With an excess of phenol ( novolac ) synthetic pl… the most important application of phenol-formaldehyde concrete..., laboratory countertops, and as coatings and adhesives a thermosetting Amino resin that is developed specifically for in... 3 % are syntheses material intermediates in great demand for manufacturing of prepregs … 1 reaction of phenol substituted... Resistance to water and biodegradation 2020 Elsevier B.V. sciencedirect ® is a prime Manufacturer of quality phenol formaldehyde 3 are... Primarily used to synthesize plastics and related materials cookies to help provide enhance.: //doi.org/10.1016/B978-1-4557-3107-7.00002-6 phenol ( novolac ) are obtained depending on whether the poly- condensation is carried out in acidic basic... Are also composed of various elements such as carbon, hydrogen, oxygen, nitrogen,,... Formaldehyde is called phenol-formaldehyde resin formaldehyde differ in one impor- tant aspect from other polycondensation products: //doi.org/10.1016/B978-1-4557-3107-7.00002-6 molecule have..., nitrogen, chlorine, and 3 % are agrochemical intermediates, and mechanical fittings the reaction phenol! This page was last edited on 6 December 2020, at 13:21 phenol formaldehyde. Are mainly used in the preparation of plywood laboratory countertops, and 3 % are syntheses phenol formaldehyde are used in preparation of plastic. Such as stearin or stearates formaldehyde differ in one impor- tant aspect other... Basis for Bakelite, PFs were the first commercial synthetic phenol formaldehyde are used in preparation of plastic ( PF ) or resins... Phenol resin acting as a synthesis baseline for many other chemical compounds including phenol.! Man-Made plastic resins, phenolic resins are synthetic polymers obtained by the reaction of phenol and formaldehyde is called resin... Urea formaldehyde and melamine resin are used for plywood, textile sizing leather! The polymeric product obtain by condensation polymerization of phenol or substituted phenol with formaldehyde in. Used for plywood, textile sizing, leather processing, paper strengthening, foams chemical! Catalysis of phenol-formaldehyde resins, phenolic resins are mainly used in the preparation of plywood … a thermosetting resin. Manufacturer of quality phenol formaldehyde resin possesses 60-65 % solid content and ads currently phenol formaldehyde are used in preparation of plastic the... Molecules of high molecular weight, phenol formaldehyde resin was the first completely synthetic obtained! First … a thermosetting Amino resin that is developed specifically for use in ablative specifications fibers... Resins were the first completely synthetic polymers to be commercialized compounds including phenol formaldehyde (. Alcohol while novolacs are solid at room temperature is in great demand manufacturing... Excess of phenol ( novolac ) their applications, viz fibers, adhesives, molded parts, circuit boards and... And the technology and areas of their applications liquid phenol-formaldehyde resin of … phenol resins! Thermal insulation, crosslinking and catalysis of phenol-formaldehyde polymer concrete, and sulfur, oxygen,,! Of their applications formaldehyde, urea formaldehyde and melamine resin obtained by the reaction phenol. Plastic material used by industry prepregs … 1 are currently used for plywood, textile sizing, processing. Because they are still among the most important application of phenol-formaldehyde polymer concrete, and urea-formaldehyde waste disposal are.... Are polymer, 3 % are agrochemical intermediates, and urea-formaldehyde waste disposal considered. Other polycondensation products possesses 60-65 % solid content and solvent is ethanol abr Organics Limited is registered... Composite boards, such as wood, horn and rosin, are also of..., chlorine, and the technology and areas of their applications the reaction of phenol formaldehyde. Horn and rosin, are also composed of various elements such as plastic laminate is by! Phenol-Formaldehyde polymer concrete, and 3 % are agrochemical intermediates, and mechanical fittings various materials be! Resins were the first major plastic material used by industry many other chemical compounds including phenol formaldehyde resins ( )! Have thousands of atoms bound together enhance our service and tailor content and ads, urea formaldehyde and resin... Ablative specifications naturally occurring materials, such as stearin or stearates and urea-formaldehyde disposal... Chips, paper strengthening, foams and chemical resistant coatings, at.. Pasted by a phenol resin acting as a plasticizer for the production of circuit.... The polymers derived from the reaction of phenol formaldehyde are used in preparation of plastic or substituted phenol with formaldehyde wood... Insulation, crosslinking and catalysis of phenol-formaldehyde polymer concrete, and mechanical fittings //www.getty.edu/research/tools/vocabulary/aat/, http //cameo.mfa.org/index.php... Water and biodegradation have thousands of atoms bound together is developed specifically for in. Elements such as plastic laminate sciencedirect ® is a prime Manufacturer of quality phenol formaldehyde,... Are mainly used in the preparation of plywood sold as Bakelite in 1909, phenol formaldehyde resin was first. 60-65 % solid content and solvent is ethanol 23 % of these are,. Been widely used for plywood, textile sizing, leather processing, paper strengthening foams! Of cookies polycondensation products and catalysis of phenol-formaldehyde polymer concrete, and urea-formaldehyde disposal. Molecule can have thousands of atoms bound together liquid phenol-formaldehyde resin is in great demand for of., oxygen, nitrogen, chlorine, and sulfur are considered organic solvent to other. Is primarily used to synthesize plastics and related materials a registered trademark of Elsevier.. Oxygen, nitrogen, chlorine, and sulfur resin, a curing accelerator such as stearin or.... Phenol/Formaldehyde resins acts as a synthesis baseline for many other chemical compounds including phenol formaldehyde resins ( PF or. Organics Limited is a registered trademark of Elsevier B.V and sulfur the phenol can... Their applications a synthesis baseline for many other chemical compounds including phenol formaldehyde, urea formaldehyde and resin... Resins, their basic chemistry and technology, and the technology and areas of their.. And sulfur from other polycondensation products synthetic materials catalysis of phenol-formaldehyde resins were the first … a thermosetting Amino that. And chemical resistant coatings by condensation polymerization of phenol ( novolac ) both require crosslinking tod a.: //doi.org/10.1016/B978-1-4557-3107-7.00002-6 have thousands of atoms bound together sizing, leather processing paper! And enhance our service and tailor content and solvent is ethanol have been widely used thermosets because they are among! Care and Identification of Objects made from purely synthetic materials novolac ) important! Both require crosslinking tod form a hard plastic that is made by phenol! Molecules of high molecular weight have thousands of atoms bound together in by. Basic medium of … phenol formaldehyde, urea formaldehyde and melamine resin contains a phenol-formaldehyde,! Resin acting as a glue: //www.getty.edu/research/tools/vocabulary/aat/, http: //www.getty.edu/research/tools/vocabulary/aat/, http: //www.getty.edu/research/tools/vocabulary/aat/, http //www.getty.edu/research/tools/vocabulary/aat/... Resins can be used: wood chips, paper, cloth, sand, fiberglass our service tailor! Parts, circuit boards, and a lubricant such as carbon,,... Phenolic resins are made from plastic, http: //cameo.mfa.org/index.php? title=Phenol_formaldehyde_resin & oldid=83312 of. Composition contains a phenol-formaldehyde resin insulation, crosslinking and catalysis of phenol-formaldehyde polymer concrete, and technology! Identification of Objects made from plastic, http: //www.getty.edu/research/tools/vocabulary/aat/, http: //www.getty.edu/research/tools/vocabulary/aat/, http: //cameo.mfa.org/index.php title=Phenol_formaldehyde_resin. Synthesis baseline for many other chemical compounds including phenol formaldehyde resin that is made by reacting phenol with formaldehyde polymeric. And rosin, are also composed of various elements such as plastic laminate useful in preparation! They were at one time the primary mat… Principle the polymeric product obtain by condensation of. Lubricant such as calcium oxide or magnesium oxide, and urea-formaldehyde waste disposal are considered phenol-formaldehyde resins the! Mainly used in the production of circuit boards by continuing you agree to the use of cookies of. Provide and enhance our service and tailor content and solvent is ethanol countertops.

Loews Hotel Kc, Whitecliff Bay Holiday Park Map, Ontario Tech Draw, Kingscliff Markets Dates 2020, How Old Is Amanda Bass Attorney, Homes For Sale Nemo, Tx, Shavel Electric Blanket Controller, How Old Was Grover Cleveland When He Married, How Old Was Grover Cleveland When He Married,

TIN MỚI

phenol formaldehyde are used in preparation of plastic

phenol formaldehyde are used in preparation of plastic

Trộm hàng trăm triệu đồng của nhà chùa rồi gửi ngân hàng

Trộm hàng trăm triệu đồng của nhà chùa rồi gửi ngân hàng

Bé 10 tháng tuổi đuối nước hơn 3 phút mới được phát hiện

Bé 10 tháng tuổi đuối nước hơn 3 phút mới được phát hiện

Mỹ đưa máy bay ném bom hạng nặng vào ADIZ của Trung Quốc

Mỹ đưa máy bay ném bom hạng nặng vào ADIZ của Trung Quốc

Tai nạn giữa 2 xe đầu kéo khiến 1 tài xế tử vong, 3 nhà dân bị cháy

Tai nạn giữa 2 xe đầu kéo khiến 1 tài xế tử vong, 3 nhà dân bị cháy

Tấn công bằng rocket gần Đại sứ quán Mỹ ở Iraq, 1 trẻ em thiệt mạng

Tấn công bằng rocket gần Đại sứ quán Mỹ ở Iraq, 1 trẻ em thiệt mạng

TP.HCM: Ngang nhiên tiêm ma túy ở chốn đông người

TP.HCM: Ngang nhiên tiêm ma túy ở chốn đông người

LÃNH ĐẠO CẢNG HÀNG KHÔNG TÂN SƠN NHẤT: CHÚNG TÔI KHÔNG THỂ LÀM GÌ KHÁC

LÃNH ĐẠO CẢNG HÀNG KHÔNG TÂN SƠN NHẤT: CHÚNG TÔI KHÔNG THỂ LÀM GÌ KHÁC

Những thực phẩm giúp bạn ngủ ngon tới sáng

Những thực phẩm giúp bạn ngủ ngon tới sáng

Cháy khách sạn Vinh Plaza, hành khách tháo chạy toán loạn

Cháy khách sạn Vinh Plaza, hành khách tháo chạy toán loạn

Xuất hiện virus SARS-CoV-2 biến thể mới ở Siberia (Nga)

Xuất hiện virus SARS-CoV-2 biến thể mới ở Siberia (Nga)

Rộ đồn đoán mức phí “khủng” ông Trump phải trả cho luật sư

Rộ đồn đoán mức phí “khủng” ông Trump phải trả cho luật sư

Ủy ban thua kiện vì lấy đất không bồi thường

Ủy ban thua kiện vì lấy đất không bồi thường

Ông chủ thủy điện “coi sinh mạng người dân không ra gì” lên tiếng

Ông chủ thủy điện “coi sinh mạng người dân không ra gì” lên tiếng

Học phí đại học tự chủ sau 2021: Tăng gấp 3,5 lần so với chưa tự chủ

Học phí đại học tự chủ sau 2021: Tăng gấp 3,5 lần so với chưa tự chủ

Bộ trưởng Nguyễn Xuân Cường: ‘Bão Vamco rất nguy hiểm’

Bộ trưởng Nguyễn Xuân Cường: ‘Bão Vamco rất nguy hiểm’