日本三菱PC EHR3150原料价格 货源充足
价格：26.00起
产品规格：
产品数量：
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关 键 词：EHR3150原料价格,日本三菱PC
行 业：塑料 通用/工程塑料 工程塑料
发布时间：2021-06-06
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, SGS 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!
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
The production of PC resin is mainly concentrated in the United States, Western Europe and Japan. The production capacity of these three regions accounts for about 90% of the world's total production capacity. At present, the development of polycarbonate industry in the world presents two major characteristics. One is that production tends to be more centralized and monopolized. The production capacity of Bayer company, Ge chemical company, Dow Chemical Company and 13 bendi company account for about 80% of the world's total production capacity. Among them, Ge electric gas, Bayer, Dow Chemical and Japan's Diren company respectively account for the world's total production capacity in 2000 35%, 31%, 9% and 9% of production capacity. These companies control the world's polycarbonate production technology and dominate the world polycarbonate market. Second, Asia is develo rapidly. In recent years, with the gradual recovery of Asian economy, especially the sustained and rapid development of China's economy, the demand for engineering plastics is becoming stronger and stronger. World famous polycarbonate manufacturers have also come to Asia to invest and build factories.
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, 主要工艺是将双与溶液配制成双盐, 同时加人, 然后送人反应器内, 加人, 通进行化反应,反应完后将反应液送到缩聚反应器内, 加人和溶液, 进行缩聚反应.
Our strengths:
Our products can provide customers with SGS report, UL, physical property table, MSDS and COA report
■ our market information is first-class and accurate
We provide professional technical support and after-sales service
■ our supply is sufficient and stable
