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 河南PP½Ž¡æäº§å“æ€§èƒ½ä¼˜åŠ¿ã€‚玻¾U¤å¢žå¼ºæ²³å—PP½Ž¡æ(FR沛_—PP½Ž¡æ)åQšé€šè¿‡20%被玻¾U¤å¢žå¼ºåŽåQŒé™¤ä¿æŒåŽŸæœ‰çš„优良性能外,强度åQŒåˆšæ€§ç­‰å‡è¾ƒPP提高一倍,而且å…ähœ‰è‰¯å¥½çš„耐热性,低温冲击性,防腐耐电弧性,低收¾~©çŽ‡ã€?br /> <br /> 特别适用于化¾U¤ã€æ°¯¼„±ã€çŸ³æ²V€æŸ“料、农药、食品、医药、轻工、冶金、污水处理等领域。由于均聚物型的PP温度高于0℃以上时非常脆,因此许多商业的PP材料是加å…?~4%乙烯的无规则å…Þpšç‰©æˆ–更高比率乙烯含量的钳ŒDµå¼å…Þpšç‰©ã€?br /> <div style="text-align:center;"> <img src="http://cmsimgshow135.zhuchao.cc/32291/201805080945227063229138897.jpg?path=www.xxuqhb.live/uploads/cp/201805080945227063229138897.jpg" alt="沛_—PP½Ž¡æ" width="400" height="300" title="沛_—PP½Ž¡æ" align="" /> </div> å…Þpšç‰©åž‹çš„PP材料有较低的热扭曲温åº?100â„?、低透明度、低光泽度、低刚性,但是有有更强的抗冲击强度。PP的强度随着乙烯含量的增加而增大。PP的维卡èÊY化温度äؓ150℃。由于结晶度较高åQŒè¿™¿Uææ–™çš„表面刚度和抗划痕ç‰ÒŽ€§å¾ˆå¥½ã€‚PP不存在环境应力开裂问题。通常åQŒé‡‡ç”¨åŠ å…¥çŽ»ç’ƒçº¤¾l´ã€é‡‘属添加剂或热塑橡胶的æ–ÒŽ³•å¯¹PP˜q›è¡Œæ”ÒŽ€§ã€‚PP的流动率MFR范围åœ?~40。低MFR的PP材料抗冲å‡È‰¹æ€§è¾ƒå¥½ä½†å»¶å±•å¼ºåº¦è¾ƒä½Žã€?br /> <br /> 对于相同MFR的材料,å…Þpšç‰©åž‹çš„强度比均聚物型的要高。由于结æ™Óž¼ŒPP的收¾~©çŽ‡ç›¸å½“高,一般äؓ1.8~2.5%。åƈ且收¾~©çŽ‡çš„方向均匀性比PE-HD½{‰ææ–™è¦å¥½å¾—多。加å…?0%的玻璃添加剂可以使收¾~©çŽ‡é™åˆ°0.7%。均聚物型和å…Þpšç‰©åž‹çš„PP材料都具有优良的抗吸湿性、抗酸碱腐蚀性、抗溶解性ã€?br /> <br /> 然而,它对芳香çƒ?如苯)溶剂、氯化烃(四氯化碳)溶剂½{‰æ²¡æœ‰æŠµæŠ—力。PP也不象PE那样在高温下仍具有抗氧化性ã€?br /></p> </div> <div class="newArtiNext mt10"><div>上一æ?<a href="83.html">沛_—PP½Ž¡æè´¨é‡çš„重要æ€?/a></div> <div>下一æ?<a href="81.html">聚丙烯管材配件厂家|端午属于我们的节日那些味道那些äh</a></div> </div> <div class="tag">相关标签åQ?a href='/key.aspx?k=%e6%b2%b3%e5%8d%97PP%e7%ae%a1%e6%9d%90'>沛_—PP½Ž¡æ</a>,<a href='/key.aspx?k=%e5%a1%91%e6%96%99%e9%80%9a%e9%a3%8e%e7%ae%a1%e9%81%93'>塑料通风½Ž¡é“</a>,<a href='/key.aspx?k=%e8%81%9a%e4%b8%99%e7%83%af%e7%ae%a1%e6%9d%90%e9%85%8d%e4%bb%b6'>聚丙烯管材配ä»?/a>,</div> </div> <div class="crumb"> <span class="fl font_w fs18">相关新闻</span> </div> <div class="artiNews clearfix pt10 fs14 font_w"> <ul> <li><a href="http://www.xxuqhb.live/news/84.html" 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