聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)(polypropylene)為(wei)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)的(de)(de)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)物。英文縮(suo)寫為(wei)PP。聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)原料(liao)豐(feng)富，綜合(he)(he)性(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)優(you)(you)良，容易(yi)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)成(cheng)型，生(sheng)(sheng)產(chan)(chan)成(cheng)本(ben)(ben)較低(di)，所以(yi)(yi)用(yong)(yong)(yong)(yong)(yong)(yong)途(tu)廣泛(fan)。其(qi)(qi)缺點是(shi)(shi)低(di)溫(wen)(wen)韌性(xing)(xing)(xing)(xing)(xing)(xing)較差，脆折(zhe)溫(wen)(wen)度(du)(du)(du)(du)高(gao)(gao)(gao)(gao)(8℃左右(you))，且易(yi)老化(hua)。近年來通過(guo)共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)和共(gong)(gong)(gong)混(hun)(hun)等(deng)方(fang)(fang)(fang)法(fa)(fa)(fa)(fa)製(zhi)得(de)改(gai)性(xing)(xing)(xing)(xing)(xing)(xing)產(chan)(chan)品(pin)(pin)，其(qi)(qi)耐(nai)(nai)(nai)(nai)(nai)低(di)溫(wen)(wen)性(xing)(xing)(xing)(xing)(xing)(xing)﹑耐(nai)(nai)(nai)(nai)(nai)衝擊(ji)性(xing)(xing)(xing)(xing)(xing)(xing)和耐(nai)(nai)(nai)(nai)(nai)老化(hua)性(xing)(xing)(xing)(xing)(xing)(xing)等(deng)有(you)所提(ti)高(gao)(gao)(gao)(gao)，因此，用(yong)(yong)(yong)(yong)(yong)(yong)途(tu)日益擴(kuo)大。自(zi) 20 世(shi)紀 50 年代納(na)塔，G.發(fa)現(xian)等(deng)規(gui)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)以(yi)(yi)來，其(qi)(qi)工(gong)(gong)(gong)業(ye)生(sheng)(sheng)產(chan)(chan)發(fa)展(zhan)非(fei)常迅(xun)速。 主(zhu)要(yao)化(hua)學和物理性(xing)(xing)(xing)(xing)(xing)(xing)質(zhi)(zhi)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)的(de)(de)重均分(fen)(fen)(fen)子量(liang)約為(wei)3~7105;質(zhi)(zhi)輕，密(mi)度(du)(du)(du)(du)約 0.91 克/厘米3;熔(rong)融溫(wen)(wen)度(du)(du)(du)(du)約為(wei) 174℃;強(qiang)度(du)(du)(du)(du)高(gao)(gao)(gao)(gao)，硬度(du)(du)(du)(du)大，耐(nai)(nai)(nai)(nai)(nai)磨并耐(nai)(nai)(nai)(nai)(nai)化(hua)學腐蝕;耐(nai)(nai)(nai)(nai)(nai)熱(re)性(xing)(xing)(xing)(xing)(xing)(xing)好(hao)，可(ke)在 120℃ 使用(yong)(yong)(yong)(yong)(yong)(yong);其(qi)(qi)性(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)不(bu)受環(huan)境(jing)濕度(du)(du)(du)(du)的(de)(de)影(ying)響。其(qi)(qi)製(zhi)品(pin)(pin)的(de)(de)耐(nai)(nai)(nai)(nai)(nai)彎曲(qu)疲勞性(xing)(xing)(xing)(xing)(xing)(xing)優(you)(you)異，能(neng)(neng)經受幾十萬次彎折(zhe)而(er)(er)不(bu)損壞。加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)性(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)好(hao)，加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)成(cheng)型時收縮(suo)率低(di)。 聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)以(yi)(yi)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)單(dan)(dan)體(ti)(ti)為(wei)主(zhu)要(yao)組分(fen)(fen)(fen)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)而(er)(er)成(cheng)。工(gong)(gong)(gong)業(ye)生(sheng)(sheng)產(chan)(chan)方(fang)(fang)(fang)法(fa)(fa)(fa)(fa)有(you)溶劑法(fa)(fa)(fa)(fa)、液相本(ben)(ben)體(ti)(ti)法(fa)(fa)(fa)(fa)、氣(qi)相本(ben)(ben)體(ti)(ti)法(fa)(fa)(fa)(fa)和溶液法(fa)(fa)(fa)(fa)四種(zhong)(zhong)(zhong)。但是(shi)(shi)普遍采(cai)用(yong)(yong)(yong)(yong)(yong)(yong)的(de)(de)是(shi)(shi)溶劑法(fa)(fa)(fa)(fa)，其(qi)(qi)次是(shi)(shi)本(ben)(ben)體(ti)(ti)法(fa)(fa)(fa)(fa)。 聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)按(an)照(zhao)參加(jia)(jia)(jia)(jia)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)的(de)(de)單(dan)(dan)體(ti)(ti)組成(cheng)，可(ke)分(fen)(fen)(fen)為(wei)均聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)級(ji)和共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)級(ji)兩(liang)種(zhong)(zhong)(zhong)。均聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)級(ji)由單(dan)(dan)一丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)單(dan)(dan)體(ti)(ti)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)而(er)(er)成(cheng)，因而(er)(er)有(you)較高(gao)(gao)(gao)(gao)的(de)(de)結晶度(du)(du)(du)(du)，較高(gao)(gao)(gao)(gao)的(de)(de)機械(xie)強(qiang) 度(du)(du)(du)(du)和耐(nai)(nai)(nai)(nai)(nai)熱(re)性(xing)(xing)(xing)(xing)(xing)(xing)。共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)級(ji)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)是(shi)(shi)在聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)時摻混(hun)(hun)入(ru)少量(liang)乙烯(xi)(xi)(xi)(xi)單(dan)(dan)體(ti)(ti)共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)而(er)(er)成(cheng)。按(an)照(zhao)共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)的(de)(de)方(fang)(fang)(fang)式，又(you)有(you)嵌段共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)合(he)(he)無規(gui)共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)兩(liang)種(zhong)(zhong)(zhong)。共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)級(ji)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)有(you)較高(gao)(gao)(gao)(gao)的(de)(de)沖(chong)(chong)擊(ji)強(qiang) 度(du)(du)(du)(du)，而(er)(er)無規(gui)共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)除了有(you)較高(gao)(gao)(gao)(gao)的(de)(de)沖(chong)(chong)擊(ji)強(qiang)度(du)(du)(du)(du)外，還有(you)很好(hao)的(de)(de)透明(ming)度(du)(du)(du)(du)。 與其(qi)(qi)它通用(yong)(yong)(yong)(yong)(yong)(yong)熱(re)塑(su)(su)(su)性(xing)(xing)(xing)(xing)(xing)(xing)塑(su)(su)(su)料(liao)比較，聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)具有(you)比重小(xiao)、剛性(xing)(xing)(xing)(xing)(xing)(xing)好(hao)、強(qiang)度(du)(du)(du)(du)高(gao)(gao)(gao)(gao)、耐(nai)(nai)(nai)(nai)(nai)撓曲(qu)，以(yi)(yi)及有(you)高(gao)(gao)(gao)(gao)于100℃的(de)(de)耐(nai)(nai)(nai)(nai)(nai)熱(re)溫(wen)(wen)度(du)(du)(du)(du)和良好(hao)的(de)(de)耐(nai)(nai)(nai)(nai)(nai)化(hua)學腐蝕性(xing)(xing)(xing)(xing)(xing)(xing)等(deng)優(you)(you)點。聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)的(de)(de)不(bu)足是(shi)(shi)低(di)溫(wen)(wen)耐(nai)(nai)(nai)(nai)(nai)沖(chong)(chong)擊(ji)性(xing)(xing)(xing)(xing)(xing)(xing)較差，容易(yi)老化(hua)，成(cheng)型收縮(suo)率大。 根(gen)據產(chan)(chan)品(pin)(pin)的(de)(de)要(yao)求和用(yong)(yong)(yong)(yong)(yong)(yong)途(tu)，聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)可(ke)以(yi)(yi)用(yong)(yong)(yong)(yong)(yong)(yong)共(gong)(gong)(gong)混(hun)(hun)、填充、增強(qiang)、添(tian)加(jia)(jia)(jia)(jia)助劑，以(yi)(yi)及共(gong)(gong)(gong)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)、共(gong)(gong)(gong)混(hun)(hun)、交(jiao)聯等(deng)方(fang)(fang)(fang)法(fa)(fa)(fa)(fa)加(jia)(jia)(jia)(jia)以(yi)(yi)改(gai)性(xing)(xing)(xing)(xing)(xing)(xing)。例(li)如可(ke)以(yi)(yi)添(tian)加(jia)(jia)(jia)(jia)碳酸鈣(gai)、 滑石粉、礦物質(zhi)(zhi)等(deng)以(yi)(yi)提(ti)高(gao)(gao)(gao)(gao)硬度(du)(du)(du)(du)、耐(nai)(nai)(nai)(nai)(nai)熱(re)性(xing)(xing)(xing)(xing)(xing)(xing)、尺寸穩定(ding)性(xing)(xing)(xing)(xing)(xing)(xing);添(tian)加(jia)(jia)(jia)(jia)玻璃(li)纖(xian)(xian)維(wei)(wei)(wei)、石棉纖(xian)(xian)維(wei)(wei)(wei)、云母、玻璃(li)微(wei)珠等(deng)以(yi)(yi)提(ti)高(gao)(gao)(gao)(gao)拉(la)伸強(qiang)度(du)(du)(du)(du)、改(gai)善低(di)溫(wen)(wen)抗沖(chong)(chong)擊(ji)性(xing)(xing)(xing)(xing)(xing)(xing)、耐(nai)(nai)(nai)(nai)(nai)蠕變性(xing)(xing)(xing)(xing)(xing)(xing);添(tian)加(jia)(jia)(jia)(jia)橡(xiang)膠、彈(dan) 性(xing)(xing)(xing)(xing)(xing)(xing)體(ti)(ti)、和其(qi)(qi)它柔性(xing)(xing)(xing)(xing)(xing)(xing)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)合(he)(he)物等(deng)以(yi)(yi)提(ti)高(gao)(gao)(gao)(gao)沖(chong)(chong)擊(ji)性(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)、透明(ming)性(xing)(xing)(xing)(xing)(xing)(xing)，添(tian)加(jia)(jia)(jia)(jia)各(ge)(ge)種(zhong)(zhong)(zhong)特殊助劑可(ke)賦予(yu)聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)諸如耐(nai)(nai)(nai)(nai)(nai)候性(xing)(xing)(xing)(xing)(xing)(xing)、抗靜電性(xing)(xing)(xing)(xing)(xing)(xing)、阻(zu)燃性(xing)(xing)(xing)(xing)(xing)(xing)、導電性(xing)(xing)(xing)(xing)(xing)(xing)、可(ke)電鍍性(xing)(xing)(xing)(xing)(xing)(xing)、成(cheng)核性(xing)(xing)(xing)(xing)(xing)(xing)、抗銅(tong)害性(xing)(xing)(xing)(xing)(xing)(xing)等(deng) 等(deng)。 聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)可(ke)以(yi)(yi)用(yong)(yong)(yong)(yong)(yong)(yong)注(zhu)塑(su)(su)(su)、擠(ji)塑(su)(su)(su)、吹塑(su)(su)(su)、熱(re)成(cheng)型、滾(gun)塑(su)(su)(su)、涂塑(su)(su)(su)、發(fa)泡等(deng)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)(fang)(fang)法(fa)(fa)(fa)(fa)生(sheng)(sheng)產(chan)(chan)不(bu)同(tong)(tong)用(yong)(yong)(yong)(yong)(yong)(yong)途(tu)的(de)(de)制品(pin)(pin)。由于各(ge)(ge)種(zhong)(zhong)(zhong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)方(fang)(fang)(fang)法(fa)(fa)(fa)(fa)對聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)的(de)(de)熔(rong)融性(xing)(xing)(xing)(xing)(xing)(xing)能(neng)(neng)有(you)不(bu)同(tong)(tong)的(de)(de)要(yao)求，因而(er)(er)形成(cheng)了注(zhu)塑(su)(su)(su)級(ji)、擠(ji)塑(su)(su)(su)級(ji)、吹塑(su)(su)(su)級(ji)、涂覆級(ji)、纖(xian)(xian)維(wei)(wei)(wei)級(ji)、薄膜(mo)級(ji)、滾(gun)塑(su)(su)(su)級(ji)等(deng)適應不(bu)同(tong)(tong)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)要(yao)求的(de)(de)品(pin)(pin)級(ji)。 聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)的(de)(de)用(yong)(yong)(yong)(yong)(yong)(yong)途(tu)相當廣泛(fan)。通過(guo)注(zhu)塑(su)(su)(su)加(jia)(jia)(jia)(jia)工(gong)(gong)(gong)、聚(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)(ju)丙(bing)(bing)(bing)(bing)(bing)(bing)(bing)烯(xi)(xi)(xi)(xi)可(ke)以(yi)(yi)制成(cheng)各(ge)(ge)種(zhong)(zhong)(zhong)工(gong)(gong)(gong)業(ye)部件、電器用(yong)(yong)(yong)(yong)(yong)(yong)品(pin)(pin)、建筑材料(liao)和日用(yong)(yong)(yong)(yong)(yong)(yong)品(pin)(pin);用(yong)(yong)(yong)(yong)(yong)(yong)擠(ji)塑(su)(su)(su)法(fa)(fa)(fa)(fa)生(sheng)(sheng)產(chan)(chan)管材、片材、形 材、扁絲、纖(xian)(xian)維(wei)(wei)(wei)、繩索;用(yong)(yong)(yong)(yong)(yong)(yong)吹塑(su)(su)(su)法(fa)(fa)(fa)(fa)生(sheng)(sheng)產(chan)(chan)各(ge)(ge)種(zhong)(zhong)(zhong)小(xiao)型容器、瓶;用(yong)(yong)(yong)(yong)(yong)(yong)吹膜(mo)法(fa)(fa)(fa)(fa)和平(ping)膜(mo)法(fa)(fa)(fa)(fa)生(sheng)(sheng)產(chan)(chan)IPP膜(mo)、CPP膜(mo)，經過(guo)拉(la)伸可(ke)獲得(de)高(gao)(gao)(gao)(gao)強(qiang)度(du)(du)(du)(du)、高(gao)(gao)(gao)(gao)透明(ming)性(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)OPP膜(mo);用(yong)(yong)(yong)(yong)(yong)(yong)滾(gun)塑(su)(su)(su)法(fa)(fa)(fa)(fa)生(sheng)(sheng)產(chan)(chan)大型化(hua)工(gong)(gong)(gong)儲槽、容器等(deng)。