Dongguan Jinghong plastic is located in Zhangmutou town, Dongguan City, Guangdong Province, China. It is a professional plastic raw material trader engaged in various projects. We do not produce raw materials, but only serve as the most professional supplier. Since its establishment, the company has actively advocated the business philosophy of "integrity as life, word-of-mouth is more important than Mount Tai", and wholeheartedly provides the best quality service for the majority of new and old customers. We have established a good reputation among peers and customers based on the development principle of "your satisfaction is the most important thing for me". We have been actively exploring the market through the Pearl River Delta region, and have established a long-term friendly cooperative relationship with large-scale plastic manufacturers at home and abroad.
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
PC与1953年由德国拜耳公司首先研究成功,并于1958年由拜耳公司首先实现了工业化生产, 至今已有四十多年历史。其制造工艺方法有溶液法、醋交换法、界面缩聚法和非法。PC,是一种无定型、无臭、无毒、高度透明的无色或微热塑性工程塑料,具有优良的物理机械性能,尤其是耐冲击性优异,拉伸强度、弯曲强度、压缩强度高; 蠕变性小,尺寸稳定; 具有良好的耐热性和耐低温性,在较宽的温度范围内具有稳定的力学性能,尺寸稳定性,电性能和阻燃性,可在- 60 ~ 120 ℃下长期使用; 无明显熔点,在220 ~ 230 ℃呈熔融状态,由于分子链刚性大,树脂熔体黏度大; 吸水率小,收缩率小,尺寸精度高,尺寸稳定性好.
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.
本公司长期供应美国RTP PC,德国拜耳PC,日本帝人PC,基础创新塑料(美国)PC,日本三菱工程PC,美国液氮PC,韩国PC,韩三星毛织PC,货源稳定,质量保证,原厂原包,假一罚十。可提供***、ROHS、UL黄卡、MSDS、FDA、COA、PDF物性表等各项数据,公司有技术跟踪服务,欢迎来电洽谈!
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主要经营晶宏塑胶原料有限公司长期低价供应各种品牌,各种系列,各种型号的塑料原料。**保证质量,物美价优。欲要了解更多的详情,请在本网页留言或者通过电话联系我,金红塑料将本着诚信为本,客户至上的原则竭力为您提供较优质的服务。。
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