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| HDPE | 日本聚烯烴 | HD KK341A |
HDPE是一種結(jié)晶度高、非極性的熱塑性樹脂。原態(tài)HDPE的外表呈乳白色，在微薄截面呈一定程度的半透明狀。PE具有優(yōu)良的耐大多數(shù)生活和工業(yè)用化學(xué)品的特性。某些種類的化學(xué)品會(huì)產(chǎn)生化學(xué)腐蝕，例如腐蝕性氧化劑（濃硝酸），芳香烴（二甲苯）和鹵化烴 （四氯化碳）。該聚合物不吸濕并具有好的防水蒸汽性，可用于包裝用途。HDPE具有很好的電性能，特別是絕緣介電強(qiáng)度高，使其很適用于電線電纜。中到高分子量等級(jí)具有極好的抗沖擊性，在常溫甚至在-40F低溫度下均如此。各種等級(jí)HDPE的獨(dú)有特性是四種基本變量的適當(dāng)結(jié)合：密度、分子量、分子量分布和添加劑。不同的催化劑被用于生產(chǎn)定制特殊性能聚合物。這些變量相結(jié)合生產(chǎn)出不同用途的HDPE品級(jí)；在性能上達(dá)到最佳的平衡。
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. The unique characteristics of various grades of HDPE is an appropriate combination of four basic variables: density, molecular weight, molecular weight distribution and additive. Different catalysts are used in the production of customized special properties of polymer. These variables are combined to produce the different uses of HDPE grade; in the perbance of the best balance.
| HDPE | 日本聚烯烴 | HD KK341A |
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(shù)不清的應(yīng)用，范圍從可重復(fù)使用的薄壁飲料杯到5－gsl罐，消費(fèi)國內(nèi)生產(chǎn)的HDPE的1/5。注塑品級(jí)一般熔體指數(shù)5～10，有具有韌性較低流動(dòng)性品級(jí)和具有可加工性的較高流動(dòng)性品級(jí)。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(huán)境應(yīng)力開裂應(yīng)用，如小型發(fā)動(dòng)機(jī)燃料箱和90－gal垃圾罐。
一般的HDPE熔點(diǎn)為142℃，分解溫度為300℃；注塑溫度的可調(diào)區(qū)間較大。注塑時(shí)，一般使用溫度為180℃--230℃；因是烯烴類塑料，它不吸水，生產(chǎn)時(shí)，不需烘干，但為了產(chǎn)品質(zhì)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(duì)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 KK341A |
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(jīng)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，F(xiàn)EP，PVDF，PEI，PEEK，PI，PPA，PES，PSU，PPSU，PSF，PUR，PA12，PA11
