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| HDPE 軒源塑膠供應(yīng)13168406869 | 菲律賓NPCA | HD5502GA |
HDPE是一種由乙烯共聚生成的熱塑性聚烯烴。雖然HDPE在1956年就已推出，但這種塑料還沒達到成熟水平。這種通用材料還在不斷開發(fā)其新的用途和市場。我國國內(nèi)高密度聚乙烯（這里的高密度聚乙烯不包括全密度聚乙烯裝置生產(chǎn)的高密度聚乙烯）的生產(chǎn)商有中石油、中石化、中海油三大企業(yè)，截至2006年年底，屬于中石油的高密度聚乙烯裝置有4套，即蘭州石化高密度聚乙烯裝置、大慶石化高密度聚乙烯裝置、遼陽石化高密度聚乙烯裝置、吉林石化高密度聚乙烯裝置
HDPE is a polyolefin produced by copolymerization of ethylene thermoplastic. Although HDPE in 1956 has been launched, but the plastic hasn't reached the mature level. This versatile material continues to develop its new uses and markets. China's domestic HDPE (high density polyethylene high density polyethylene here do not include the full density polyethylene device production) producers in the oil, Sinopec, CNOOC three large enterprises, as of the end of 2006, high density polyethylene device belongs to the oil in 4 sets, namely Lanzhou Petrochemical HDPE device, Daqing Petrochemical HDPE device, Liaoyang Petrochemical HDPE device, Jilin Petrochemical HDPE device
Waka Kotake analysis, from the viewpoint of the composite materials, and the particle and numerical interfacial bond, such as particles by modifying agent to treat specific, is auxiliary particle can also bear the tensile stress, enhancing modification effect. The addition of inorganic filler in plastic material, not only can reduce the material cost, but also can improve the material's mechanical modulus, heat resistance and surface hardness of material properties, however, the addition of inorganic filling material will generally make the material properties become brittle in plastic material, the notched impact toughness decreased, the properties of materials received obvious effect. The filling material in an amount of not too much general content about 10%, so this also limits the further development of the modified b. How can both increase filling amount, reduce plastic materials production costs at the same time, also improve the material notch impact toughness, mechanical property and heat resistance, improve the use of plastic material properties, has become a hot topic concerned by people in recent years "rigid filler particle toughened plastics materials".
| HDPE 軒源塑膠供應(yīng)13168406869 | 菲律賓NPCA | HD5502GA |
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.
深入納米碳酸鈣對HDPE的增強增韌研究結(jié)果表明：a.納米級碳酸鈣在未經(jīng)表面處理的情況下，與HDPE仍具有一定的粘接作用力，對HDPE有增強增韌作用；b.現(xiàn)有表面處理劑對納米碳酸鈣與HDPE相界面粘接作用的改善不大，但能促進碳酸鈣粒子在基體中的均勻分散，顯著減少碳酸鈣增強增韌HDPE的用量。表面處理的碳酸鈣在含量為4%~6%時，復(fù)合材料的沖擊強度即可以提高1倍，同時其屈服強度及模量也均有所提高。研究Caco3/HDPE復(fù)合體系時觀察到輕質(zhì)碳酸鈣填充HDPE的斷口形貌為典型的“帶狀結(jié)構(gòu)”，重質(zhì)碳酸鈣填充HDPE為“絮狀結(jié)構(gòu)”，兩者都有利于材料韌性的提高，但“帶狀結(jié)構(gòu)”吸收的沖擊能不一定比“絮狀結(jié)構(gòu)”的高。
Deep nano calcium carbonate on HDPE reinforcing and toughening research results show that: A. nanometer calcium carbonate without surface treatment, and the HDPE still has the adhesive force certain, a reinforcing and toughening effect on HDPE; not much existing B. agents on the surface treatment of nano calcium carbonate and HDPE interface adhesive effect, but can promote the calcium carbonate particles in the matrix of the unib dispersion, significantly reduce the amount of calcium carbonate reinforced and toughened HDPE. Surface treated calcium carbonate in the content of 4%~6%, the impact strength of the composites can be increased by 1 times, while the yield strength and modulus also increased. Study on Caco3/HDPE composite system was observed when light calcium carbonate filled HDPE fracture morphology typical of the "banded structure", heavy calcium carbonate filled HDPE "flocculent structure", both to the improvement of material toughness, but "banded structure" to absorb the shock of energy is not necessarily better than the "high flocculent structure".
| HDPE 軒源塑膠供應(yīng)13168406869 | 菲律賓NPCA | HD5502GA |
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）。
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).
使用無機剛性粒子對高分子材料進行增韌，是近年來高分子材料科學(xué)領(lǐng)域出現(xiàn)的一項重要的新技術(shù)，目前對剛性無機粒子增韌的基本條件初步認(rèn)識有三條：1、剛性粒子與樹脂基體之間要有良好的界面粘接力，使應(yīng)力更容易通過界面?zhèn)鬟f，界面粘接的好壞與粒子的冷拉有直接影響；2、被增韌基體本身應(yīng)具有一定韌性。基體的韌性使得它在共混合金受力時易于屈服形變，產(chǎn)生對剛性粒子的靜壓力，并使其發(fā)生塑性形變以吸收更多的沖擊能量；3、剛性粒子要有恰當(dāng)?shù)某叽纾瑒傂粤Ｗ恿揭∏覞舛纫_到一定值才能增韌。
The use of polymer materials toughened rigid inorganic particles, is an important new technology emerges in the field of Polymer Materials Science in recent years, the basic conditions of rigid inorganic particle toughened preliminary understanding has three: have a good interfacial adhesion between the 1, rigid particles and resin matrix, the stress more easily through the interface transfer, directly affects the particle and the interfacial adhesion of cold drawing; 2, by toughening matrix itself should have certain toughness. The toughness of the matrix makes it easy to yield debation in the blend stress, static pressure on the rigid particles, and the occurrence of plastic debation to absorb more impact energy; 3, the rigid particles must have the appropriate size, rigid particle size to small and concentration to reach a certain value to toughening.
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