Menene High Density Polyethylene

Babban yawa polyethylene (HDPE), farin foda ko samfurin granular. Ba mai guba ba, mara ɗanɗano, crystallinity na 80% zuwa 90%, wurin laushi na 125 zuwa 135 ° C, yi amfani da zafin jiki har zuwa 100 ° C; taurin, ƙarfi mai ƙarfi da ductility sun fi ƙarancin ƙarancin polyethylene; sa juriya, lantarki Kyakkyawan rufi, tauri da juriya sanyi; kyakkyawan kwanciyar hankali na sinadarai, wanda ba zai iya narkewa a cikin kowane irin kaushi na halitta a cikin zafin jiki, juriya na lalata acid, alkali da gishiri daban-daban; bakin ciki na fim din da ya dace da ruwa da iska, shayar ruwa Low; matalauta tsufa juriya, muhalli danniya fatattaka juriya ba shi da kyau a matsayin low yawa polyethylene, musamman thermal hadawan abu da iskar shaka zai rage aikinsa, don haka antioxidants da ultraviolet absorbers dole ne a kara da guduro don inganta wannan rashi. Fim ɗin polyethylene mai girma yana da ƙananan zafin jiki na murdiya a ƙarƙashin damuwa, don haka kula da shi lokacin amfani da shi.

[Sunan Ingilishi] Babban Maɗaukaki Polyethylene
[Ƙarshen Turanci] HDPE
[Na kowa sunan] Low matsa lamba ethylene
[Mai haɗakarwa monomer] Ethylene

[Halayen asali] HDPE wani abu ne mai kama da kakin zuma mai banƙyama tare da takamaiman nauyi fiye da ruwa, tare da takamaiman nauyi na 0.941 ~ 0.960. Yana da taushi kuma mai tauri, amma dan kadan ya fi LDPE wuya, kuma yana iya miƙewa kaɗan, mara guba da ɗanɗano.

[Halayen konewa] Yana da ƙonewa kuma yana iya ci gaba da ƙonewa bayan barin wuta. Ƙarshen harshen wutan rawaya ne, ƙananan ƙarshen kuma shuɗi ne. Lokacin konewa, zai narke, za a sami ɗigon ruwa, kuma baƙar hayaki ba zai fito ba. A lokaci guda kuma tana fitar da kamshin kona paraffin.

[Babban fa'idodi] Acid da juriya na alkali, juriya na kaushi na kwayoyin halitta, ingantaccen rufin lantarki, kuma har yanzu yana iya kula da wani tauri a ƙananan zafin jiki. Ƙarfin sararin samaniya, ƙarfin ƙarfi, ƙarfin hali da sauran ƙarfin injiniya sun fi LDPE, kusa da PP, ya fi PP ƙarfi, amma ƙarshen farfajiyar ba shi da kyau kamar PP.

[Babban hasara] ƙarancin kayan inji, ƙarancin iskar iska, sauƙi nakasawa, sauƙin tsufa, sauƙin zama gaggautsa, ƙarancin karyewa fiye da PP, mai sauƙin damuwa da fatattaka, ƙarancin taurin ƙasa, sauƙin karce. Yana da wahalar bugawa, lokacin bugawa, ana buƙatar jiyya na fitar da ƙasa, babu electroplating, kuma farfajiyar ba ta da ƙarfi.

[Aikace-aikace] Ana amfani da fina-finai na marufi, igiyoyi, jakunkuna da aka saka, gidajen kamun kifi, bututun ruwa; gyare-gyaren allura na ƙananan buƙatun yau da kullun da harsashi, abubuwan da ba su da kaya, akwatunan filastik, akwatunan juyawa; extrusion busa gyare-gyare kwantena, m kayayyakin, kwalabe.