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PP属于结晶型聚合物，不到一定温度其颗粒不会熔融，不像PE或PVC那样在加热过程中随着温度提高而软化。一旦达到某一温度，PP颗粒迅速融化，在几度范围内就可全部转化为熔融状态。PP的熔体粘度比较低，因此成型加工流动性良好，特别是当熔体流动速率较高时熔体粘度更小，适合于大型薄壁制品注塑成型，例如洗衣机内桶。PP属于非极性聚合物，具有良好的电绝缘性，且PP吸水性极低，电绝缘性不会受到湿度的影响。PP的介电常数、介质损耗因数都很小，不受频率及温度的影响。PP的介电强度很高，且随温度上升而增大。这些都是在湿、热环境下对电气绝缘材料有利的。另一方面PP的表面电阻很高，在一些场合使用必须先进行抗静电处理。PP是高结晶塑料，它在熔点的附近时，它的液态和固态的体积相差很大，加上它收缩时的各向异性，因此易引起不均衡收缩即缩水；因此，设计制品时，尽量避免壁厚不均匀；聚丙烯的熔体粘度小，流动性好，流长比流动长度与厚度的比值大，薄壁制品可能也能注满；但同时，它的模具制作时，精度要高，否则会批峰；因它的各向异性，制品经常是变形。收缩率为18‰；溢边值为0.03mm。聚丙烯不吸水，一般不需烘干，有时为了产品质量，也可以用60℃的温度，烘干30分钟至1个小时，以排出原料中的浮水。
长期供应 PP” 抗撞击PP、食品级PP、耐热级PP、耐候级PP、高流动PP、抗静电PP、抗紫外线PP以及吹塑级PP、挤出级PP、透明级PP 可为客户提供相应有效的报告证明、品质保证及有关性能测试报告， 如：无毒证明，COA，UL黄卡，MSDS、SGS（RoHS)、FDA、ASTM或ISO物性资料等，提供优质的售后服务与技术支持




PP---特点：密度小,强度刚度,硬度耐热性均优于低压聚乙烯,可在100度左右使用。具有良好的电性能和高频绝缘性不受湿度影响,但低温时变脆、不耐磨、易老化. 适于制作一般机械零件,耐腐蚀零件和绝缘零件PP塑胶原料化学和物理特性


PP ---是一种半结晶性材料。它比PE要更坚硬并且有更高的熔点。由于均聚物型的PP温度高于0C以上时非常脆，因此许多商业的PP材料是加入1~4%乙烯的无规则共聚物或更高比率乙烯含量的钳段式共聚物。 共聚物型的PP材料有较低的热扭曲温度（100C）、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的维卡软化温度为150C。由于结晶度较高，这种材料的表面刚度和抗划痕特性很好。PP不存在环境应力开裂问题。通常，采用加入玻璃纤维、金属添加剂或热塑橡胶的方法对PP进行改性。


PP--的流动率MFR范围在1~40。低MFR的PP材料抗冲击特性较好但延展强度较低。对于相同MFR的材料，共聚物型的强度比均聚物型的要高。 由于结晶，PP的收缩率相当高，一般为1.8~2.5%。并且收缩率的方向均匀性比PE-HD等材料要好得多。加入30%的玻璃添加剂可以使收缩率降到0.7%。

均聚物型和共聚物型的PP材料都具有优良的抗吸湿性、抗酸碱腐蚀性、抗溶解性。然而，它对芳香烃（如苯）溶剂、氯化烃（四氯化碳）溶剂等没有抵抗力。PP也不象PE那样在高温下仍具有抗氧化性。



PP---范围汽车工业（主要使用含金属添加剂的PP：挡泥板、通风管、风扇等），器械（洗碗机门衬垫、干燥机通风管、洗衣机框架及机盖、冰箱门衬垫等），日用消费品（草坪和园艺设备如剪草机和喷水器等）



聚丙烯PP性能概述：
PP物理性能：无毒、无臭、无味的乳白色高结晶聚合物；密度：0.90～0.91g/cm3，是目前所有塑料中最轻的品种之一；吸水率差，仅0.01%；
PP力学性能：结晶度高，结构规整，强度和硬度、以及弹性都比不上HDPE；但在室温和低温下，由于本身结构规整度高，所以其冲击强度较差，分子量增加的时候，冲击强度也加强，但如果会使成型加工性变差，PP最突出的性能就是抗弯曲疲劳性。
PP热性能：PP具有良好的耐热性，熔点在164～170℃。在不受外力的情况下，150℃也不会变形。在低于-35℃会发生脆化，耐寒性不如PE。
PP化学性能：化学稳定性良好，除了能被浓硫酸、浓硝酸侵蚀外，对其他化学药剂都比较稳定。化学性随结晶度的增加还有所提高。
PP电能性：由于它的吸水率差，因此它几乎不吸水，所以不受湿度的影响，其绝缘性非常好。
PP耐候性：PP对紫外线很敏感，加入氧化锌等填料会改善其老化性能。




供应韩国油化PP：
PP 4017H均聚物，一般目的，MI=24g/10min。
PP 4017M均聚物，用于薄壁部件、电器用具，MI=14。
PP 4018均聚物，清晰度高，医疗级，MI=19。
PP 5010高拉伸强度，均聚物，MI=10g/10min。
PP 5010U高拉伸强度，均聚物，耐气候影响性能良好。
PP 5012均聚物，MI=2.0。
PP 5012U高拉伸强度，均聚物，耐气候影响性能良好，MI=1.8g/10min。
PP 5014均聚物，一般目的，MI=3.2g/10min。
PP 5014L均聚物，可加工性良好，MI=3.0。
PP 5014U均聚物，耐气候影响性能良好，MI=3.5g/10min。

供应韩国SEETEC—PP：
PP H1500主要性能：均聚物，流动性高，FDA认证，MI=12。
PP H1501主要性能：均聚物，刚性高，流动性高，食品级，MI=17。
PP H1615主要性能：均聚物，刚性高，抗刮伤，食品级，高结晶，耐热性高，MI=18。
PP H5300主要性能：均聚物，可加工性良好，良好的拉伸性，食品级，MI=3.5。
PP M1400主要性能：共聚物，刚性良好，流动性高，抗撞击性良好，食品级，MI=8。
PP M1500主要性能：共聚物，刚性高，抗撞击性高，流动性高，MI=16。

供应马来大腾石化PP：
PP/PM801：刚性良好，抗撞击性良好，食品级，生产阶段快，中等透明，薄壁部件，MI=50g/10min。
PP/PM802：均聚物，MI=40g/10min。
PP/PM803：低翘曲性，可控流变，食品级，高流动，MI=50g/10min。
PP/PM925：高光泽，良好的剥离性，抗气体褪色性，MI=25。
PP/SM668：加有澄清剂、无规共聚物、防潮、清晰度高、抗撞击性良好、中等硬度、FDA认证。主要参数：熔流率20g/10min。
PP/SM669：加有澄清剂、无规共聚物、高流动性、尺寸稳定性良好、清晰度高、中等硬度、抗撞击性良好。主要参数：熔流率30g/10min。
PP/SM701：抗冲共聚物，MI=27。
PP/SM790：抗冲共聚物，良好的抗蠕变性，MI=8.0。
PP/SM791：抗撞击性良好，高流动MI=30，食品级，抗冲共聚物。
PP/SM840：低温韧性，良好的表面光洁度，食品级，抗冲共聚物，高流动MI=35。

供应韩国LG—玻纤增强PP：
PP GP-2100主要性能：10%玻纤增强，MI=15g/10min，耐热145度。
PP GP-2200主要性能：20%玻纤增强，MI=8.0g/10min，耐热150度。
PP GP-2201F主要性能：20%玻纤增强，耐热性高142度，阻燃V1，高强度，MI=g/10min。
PP GP-2300主要性能：30%玻纤增强，一般目的，MI=7.0g/10min，耐热155度。
PP HI-5302A主要性能：30%玻纤增强，冲击调节器，尺寸稳定性良好，改良抗撞击性，高抗冲，MI=25。




pp
　　聚丙烯英文名称：Polypropylene，简称：PP，俗称：百折胶。聚丙烯是聚α-烯烃的代表，由丙烯聚合而制得的一种热塑性树脂，其单体是丙烯CH2=CH－CH3。根据引发剂和聚合工艺的不同，聚丙烯可以分为等规聚丙烯和无规聚丙烯和间规聚丙烯三种构型。等规聚丙烯易形成结晶态，结晶度高达95%以上，分子量在8-15万之间，赋予他良好的抗热和抗溶剂性；无规聚丙烯在室温下是一种非结晶的、微带粘性的白色蜡状物，分子量低，在3000-10000，结构不规整缺乏内聚力，应用较少。

聚丙烯
　　PP聚丙烯
　　商标名称： 例如，Asota® Asota GmbH
　　
最高持续操作温度
干燥情况
90 ºC
最高峰温度 100 ºC
特殊密度 0.91 g/cm³
抗拉强度 大约120-150 daN/5 cm
熔化温度 162 - 176 ºC
吸潮度 0%
LOI（极限氧指数） 18
特性 优点
? 防酸和碱的能力很强
? 防有机溶剂的能力强
? 特殊密度低 缺点
? 最高操作温度低
? 易于在氧化过程发生老化

应用范围
　　汽车工业（主要使用含金属添加剂的PP：挡泥板、通风管、风扇等），器械（洗碗机门衬垫、干燥机通风管、洗衣机框架及机盖、冰箱门衬垫等），日用消费品（草坪和园艺设备如 剪草机和喷水器等）。





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