4,4′-联苯二酚

英文名  4,4′-Dihydroxybiphenyl

CAS号  92-88-6

分子式  C₁₂H₁₀O₂    

分子量 186.21

结构式 

含量  ≥99.9%

密度  1.22

熔点 282-286℃

性状  白色针状或片状结晶。易溶于乙醚、乙醇、乙酸乙酯、丙酮和氢氧化钠，微溶于苯和氯甲烷，不溶于汽油、四氯化碳和水。

用途  其高纯度产品主要用于合成液晶高分子聚合物(LCP)，这类液晶聚合物具有多种特性，广泛应用于许多方面。可仿丝，制成高强度纤维，用于光导纤维增强等。

液晶聚合物(LCP)是近几年发展最快的高性能全新结构的特种工程塑料，是一种高性能材料，具有极其优越的综合性能。具有１加工性良好；２具有自我补强性；３耐热性极佳；４线膨胀系数小；５电气性质优越；６卓越的物性及化性。因此被广泛应用于电子零件、精密机械零件，家电产品配件，医疗器材、汽车零组件及化工设备零件等领域。此外用作橡胶防老剂和塑料抗氧剂，具有无污染性，可用于无色硫化橡胶制品、食品包装用橡胶制品及医用乳胶制品，也用于氯化硫冷硫化制品如医用手套等。还可用于染料中间体、石油制品稳定剂、合成光敏材料、合成高聚物原料。在合成高聚物方面，由于其耐热性极佳，故可作为聚酯、聚氨酯、聚碳酸酯、聚苯砜及环氧树脂等的改性单体，用以制造优良的工程塑料和复合材料。

包装  25kg纸板桶

储存  密封遮光，贮存在干燥、阴凉、通风良好的地方

Product:  4,4′-Dihydroxybiphenyl

CAS No.: 92-88-6

Molecular Formula: C₁₂H₁₀O₂    

Molecular Weight: 186.21

Structural Formula:      

Properties

White needle/flake-shaped crystal. Soluble in ether, ethanol, ethyl acetate, acetone and sodium hydroxide, slightly soluble in benzene and methyl chloride, insoluble in gasoline, carbon tetrachloride and water.

Application

Its high-purity products are mainly used in the synthesis of liquid crystal polymers (LCP), which have various properties and are widely applied on in many fields. It can make imitated silk, high-strength fibers for optical fiber reinforcement.

Liquid crystal polymer (LCP) is a special engineering plastic with the fastest growing high-performance new structure in recent years. It’s a high-performance material with extremely superior comprehensive properties: 1) Good process-ability; 2) Self-reinforcing; 3) Excellent heat resistance; 4) Small coefficient of linear expansion; 5) Superior electrical properties; 6) Excellent physical and chemical properties.

Therefore, it’s widely used in electronic parts, precision mechanical parts, home appliance accessories, medical equipment, auto parts and chemical equipment parts and other fields. In addition, it can be used as a rubber antioxidant and plastic antioxidant. It is non-polluting and can be used for colorless vulcanized rubber products, rubber products for food packaging and medical latex products, and also for sulfur chloride cold vulcanization products such as medical gloves. It can also be applied on dye intermediates, petroleum product stabilizers, synthetic photosensitive materials, and synthetic polymer raw materials. In terms of synthetic polymers, due to its excellent heat resistance, it can be used as a modified monomer for polyester, polyurethane, polycarbonate, polyphenylsulfone and epoxy resin to produce excellent engineering plastics and composite materials.

Storage & Packaging

Please store in a dry, cool, well-ventilated place; Packaging of 25kg/ cardboard drum.