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| HDPE | 日本聚烯烴 | HD KF251C |
Application of HDPE countless, ranging from reusable thin-walled drink cup to the 5gsl tank, consumption of domestic production of HDPE 1/5. Injection molding grade general melt index of 5 ~ 10, with toughness is low liquidity grade and has high liquidity level processing of. Uses include daily necessities and food thin-walled packaging; food and paint cans ductile, durable; high resistance to environmental stress cracking application, such as small engine fuel tank and 90 gal garbage cans.
The melting point of HDPE is 142 ℃, decomb temperature 300 ℃; the injection temperature adjustable interval larger. Injection molding, general use temperature is 180 ℃ --230 ℃; because the olefine plastic, it does not absorb water, production, without drying, but to the quality of the products, can be 60 ℃ drying 1hr, to discharge the water; the melt viscosity of polyethylene, flow length ratio is small, thin-walled products may lack of glue, therefore, gate and runner is relatively large; products easy with static electricity, surface easy to absorb. Shrinkage rate was 16 ‰; overflow boundary value for 0.05mm.
HDPE有數不清的應用，范圍從可重復使用的薄壁飲料杯到5－gsl罐，消費國內生產的HDPE的1/5。注塑品級一般熔體指數5～10，有具有韌性較低流動性品級和具有可加工性的較高流動性品級。用途包括日用品和食品薄壁包裝物；有韌性、耐用的食品和涂料罐；高抗環境應力開裂應用，如小型發動機燃料箱和90－gal垃圾罐。
一般的HDPE熔點為142℃，分解溫度為300℃；注塑溫度的可調區間較大。注塑時，一般使用溫度為180℃--230℃；因是烯烴類塑料，它不吸水，生產時，不需烘干，但為了產品質量，可用60℃溫度烘干1hr，以排出浮水；聚乙烯的熔體粘度大，流長比小，薄壁制品可能缺膠，因此，澆口和流道相對較大；制品易帶靜電，表面易吸埃。收縮率為16‰；溢邊值為0.05mm。
| HDPE | 日本聚烯烴 | HD KF251C |
| HDPE | 日本聚烯烴 | HD KF251C |
High density polyethylene (High Density Polyethylene, referred to as "HDPE"), is a high degree of crystallinity, non-polar thermoplastic resin. The original state of HDPE milky white appearance, with a certain degree of translucent at thin section. PE has excellent chemical resistance properties with the most life and industry. Some kinds of chemicals will produce chemical corrosion, such as corrosive oxidizer (nitric acid) (Er Jiaben), aromatic hydrocarbons and halogenated hydrocarbons (carbon tetrachloride). The polymer is not hygroscopic and has good waterproof steam, and can be used for packing. HDPE has good electrical properties, especially the insulation of high dielectric strength, so it is suitable for wire and cable. Medium to high molecular weight grades with excellent impact resistance, at room temperature even in the -40F low temperature so.
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本公司主要經營 ：
通用塑膠：PP，ABS，HIPS，PE，EVA，PVC，GPPS；
工程塑膠：PMMA，PC，PA6，PC/ABS，PA66，PA4T，PA46，PA/ABS，PA/PPE，PA6T，PC/PBT，POM，PBT；
高溫塑膠：PPA，PA46，PA9T，LCP，PA6T；
特種工程塑膠：PPS，COC，COP，IXEF，PTFE，PFA，ETFE，FEP，PVDF，PEI，PEEK，PI，PPA，PES，PSU，PPSU，PSF，PUR，PA12，PA11
