PC GS2010MR2原料价格
价格：26.00起
产品规格：
产品数量：
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关 键 词：GS2010MR2原料价格,PC
行 业：塑料 通用/工程塑料 工程塑料
发布时间：2021-07-13
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开发生产工艺介绍
PC的工业合成主要是以双为原料，、和为原料和反应助剂的界面路线。工艺成熟，产品质量高，规模化、连续化生产容易，经济性好。因此，近几年来国内主要的聚碳酸酯生产线都占据了主导地位。年，日本塑料公司成功地研究了非工艺，实现了工业化生产。该工艺主要以双和碳酸二酯为原料，是一种符合环保要求的绿色工艺，已成为未来聚碳酸酯合成工艺的发展方向，预计未来聚碳酸酯生产将逐步占据主导地位
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.
Polycarbonate (PC) has good mechanical properties and good creep resistance, which is better than that of phthalamide and paraformaldehyde. Especially, PC modified by glass fiber has better creep resistance, so it can bear higher load at higher temperature and ensure dimensional stability. The main shortcomings of polycarbonate mechanical properties are easy to produce stress cracking, poor fatigue resistance, high notch sensitivity, no wear resistance and so on. PC has good high and low temperature resistance, good heat resistance at 120 ℃, and hot deformation temperature of 130 ~ 140 ℃. At the same time, it has good cold resistance, brittleness temperature is - 100 ℃, long-term service temperature is - 70 ~ 120 ℃. Moreover, its thermal conductivity and specific heat capacity are not high, its linear expansion coefficient is small, its flame retardancy is good, and it has self extinguishing property. As a weak polar polymer, PC has better electrical insulation although its electrical insulation is not as good as that of polyolefins. Because of its high glass transition temperature and low hygroscopicity, it can maintain good electrical properties under wide temperature and humidity conditions
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.
