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!
(PC)--工程塑料的简介
工程塑料一般是指可以作为结构材料承受机械应力,能在较宽的温度范围和较为苛刻的化学及物理环境中使用的塑料材料。
工程塑料可分为通用工程塑料和特种工程塑料两大类。
通用工程塑料通常是指已大规模工业化生产的、应用范围较广的5种塑料,
即:
聚酰胺(尼龙,PA)
聚碳酸酯(聚碳,PC)
聚(POM)
聚酯(主要是PBT,PET)
聚苯醚(PPO,或变性PPE)。
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
Japan Mitsubishi PC model and grade introduction:
PC general pure PC: h-4000 H-3000 H-2000 s-3000 S-2000 S-1000 E-2000
PC flame retardant grade V-1: N-9
PC flame retardant grade V-2: fpr3000 fpr3500 fpr4500 efr2150 efr2151h efr3000 3200 3200h 2200
PC SAE fit grade PC: ml-200 ml-300 ml-400
PC lens grade: clv1000 cls1000 cls400 cls3400
PC gamma ray resistance: rs-3001r rs-1001r eb-3001r
PC optical diffusion level: ds-3002r 7011a ds-3002r 7031a ds-3002r 7051a dh-3002r efd2110u efd2230u
PC light reflection level: ehr3100 ehr3150 ehr3400 eh00 ehg2010r
PC light guide plate grade: hl-3000 hl-4000 hl-7001 hl-8000
Light guide grade for PC automobile: hl-3003 hl-3503
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、有机玻璃等。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,其熔融粘度远高于其他热塑性塑料
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.