The company mainly engaged in:
General plastic raw materials (GPPS, hips, ABS, as, MBS, PMMA, PP, HDPE, LDPE, LLDPE, EVA, PVC) engineering plastics raw materials (PET, PBT, LCP, PA6, PA66, PA46, PC, PC / ABS, PC / PBT, POM, PPA, PPS, PPO, peek, PTFE) thermoplastic elastomer (SBS, TPR, TPEE, Poe, TPU, TPO, TPV) and fiber adding, flame retardant, high temperature resistance and environmental protection grade of various new materials We can provide UL yellow card, *** report and COA factory report as well as physical property table. Our market information is first-class and accurate. We provide after-sales technical support in time. Our company in good faith-based, customer first principle, will strive to face the global new and old customers to carry out business. Welcome to call or through QQ to our company for consultation and negotiation!
PC是分子主链中含有碳酸酯基的聚合物统称为聚碳酸酯,根据醋基结构可分为脂肪族、芳香族、脂肪族一芳香族等多种类型。目前商业化聚碳酸醋的基本结构为芳香族代。由于代是一种综合性能优良的非晶型热塑性树脂, 具有优异的电绝缘性、延伸性、尺寸稳定性及耐化学腐蚀性, 较高的耐热性和耐寒性还具有自熄、易增强、阻燃、无毒、卫生、能着色等优点,聚碳酸醋是增长速度快的通用工程塑料,目前聚碳酸醋的工业化装置基本上都是采用界面缩聚法工艺, 主要工艺是将双酚与烧碱溶液配制成双酚钠盐, 同时加人酚, 然后送人反应器内, 加人二氯甲烷, 通进行化反应,反应完后将反应液送到缩聚反应器内, 加人和烧碱溶液, 进行缩聚反应.
PC Basic Description:
PC can be divided into aliphatic, alicyclic, aromatic and aliphatic aromatic groups. As one of the five engineering plastics, polycarbonate mainly refers to bisphenol a polycarbonate. PC is a kind of thermoplastic engineering plastics with excellent comprehensive properties. It can be used to manufacture parts such as machinery, automobile and precision instrument. It can also be used in electronic components and electric tool parts. However, the processing and molding requirements of PC are high, and it has no self-lubricating property, so it is not suitable for manufacturing products with metal inserts. Due to its non-toxic, good chemical resistance and excellent food hygiene performance, PC can be widely used in daily life. In particular, its tranrency is superior to other engineering plastics, so it is widely used in aviation glass, lamps, safety glass, office equipment, laser disc and other fields. It can be said that in all areas of the national economy, PC has been widely used, and is still expanding.
PC是一种中等耐磨材料(但比金属好得多)。与尼龙、聚、氯化聚醚、聚四氟乙烯等相比,但优于ABS、聚砜、**玻璃等。通过添加聚四氟乙烯、玻璃纤维等填料,可以提高PC的耐磨性,降低摩擦系数和磨损损失,提高PV值。PC具有良好的耐热性和耐寒性。可在-100~130℃范围内长期使用。具有较高的载荷变形温度(130~140℃),受载荷影响较小。脆性温度在-100℃以下,即使在-180℃也不会像玻璃一样破碎。PC无明显熔点,在220~230℃熔融。由于高分子链的高刚性,其熔融粘度远**其他热塑性塑料
PC is a kind of weak polar polymer. Although the electrical insulation of PC is not as good as that of polyolefins, it still has good electrical insulation. Because of its high glass transition temperature and low moisture absorption, it can maintain good electrical properties under a wide range of temperature and humidity conditions. Especially, its dielectric constant and dielectric loss are close to constant in the range of 10 ~ 130 ℃, so it is suitable for manufacturing capacitors. PC polycarbonate has certain chemical resistance. It is resistant to water, organic acid, dilute inorganic acid, oxidant, salt, oil, fatty hydrocarbon and alcohol at room temperature. However, it is eroded by alkali, amine, ketone, ester and aromatic hydrocarbon, and dissolved in trimethyl methane, dichloroethane, cresol and other solvents. Long term immersion in boiling water will also occur hydrolysis. In some chemical reagents, such as carbon tetrachloride, polycarbonate may cause stress cracking
Material ordering instructions:
1. Our company purchases goods through regular channels and can issue VAT invoice.
2.The customer shall be responsible for the defects of finished products caused by the processing of this batch of materials.
3. If there is any discrepancy between the quantity, price and quality ordered by customers, please contact our sales department in time.
4. The goods will be delivered within 24 hours after receiving your purchase order, and the goods can be delivered within 3 days outside Guangdong Province.
http://jhsj168168.b2b168.com
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