PE na USB abu

PE wani fili ne na polyethylene, akasarin kasu kashi zuwa babban yawa polyethylene (HDPE), matsakaicin yawa polyethylene (MDPE), ƙananan ƙarancin polyethylene (LDPE) da ƙananan ƙananan polyethylene (LLDPE).

Tuntube mu

Cikakken Bayani

Tags samfurin

fasalin samfurin

1.HDPE wani nau'i ne na babban crystallinity, resin thermoplastic maras iyaka wanda aka samar da ethylene copolymerization. Siffar HDPE ta asali fari ce mai madara, kuma tana da jujjuyawa zuwa wani yanki a cikin ƙaramin yanki. Yana da kyakkyawan juriya ga yawancin sinadarai na cikin gida da na masana'antu, kuma yana iya tsayayya da lalata da rushewar oxidants mai ƙarfi (mai daɗaɗɗen nitric acid), acid da salts alkali da sauran kaushi na halitta (carbon tetrachloride). Polymer ba ya sha danshi kuma yana da kyakkyawan juriya na ruwa ga tururi, wanda za'a iya amfani dashi don danshi da kuma kariya mai zurfi.

2.MDPE yana da alaƙa da juriya na tsagewar muhalli da ƙarfin ƙarfin lokaci mai tsawo. Matsakaicin dangi na MDPE shine 0.926-0.953, crystallinity shine 70% -80%, matsakaicin nauyin kwayoyin halitta shine 200,000, ƙarfin ƙarfi shine 8-24 mpa, elongation a hutu shine 50% -60%, zafin jiki na narkewa shine 126-135 ℃, da narke ya kwarara kudi ne 0.1-35 g / 10 minutes. Zazzabi nakasar zafi (0.46 mpa) 49-74 ℃.

3. Low density polyethylene ne mafi haske iri-iri a polyethylene guduro. Idan aka kwatanta da high-yawa polyethylene, da crystallinity (55% -65%) da softening batu (90-100 ℃) ne m. Yana da kyau taushi, extensibility, nuna gaskiya, sanyi juriya da processability. Tsarin sinadaransa yana da kyau, yana iya jure wa acid, alkali da gishiri bayani mai ruwa; Kyakkyawan rufin lantarki da iskar gas; Ƙananan sha ruwa; Sauƙi don ƙonewa. Kayan yana da taushi, tare da haɓaka mai kyau, rufin lantarki, kwanciyar hankali na sinadarai, aikin sarrafawa da ƙarancin zafin jiki (juriya zuwa -70 ℃).

4. Idan aka kwatanta da LDPE, LLDPE yana da abũbuwan amfãni daga high ƙarfi, mai kyau taurin, karfi rigidity, zafi juriya, sanyi juriya, da dai sauransu kwayoyin kaushi da sauransu.

Lura: Ana amfani da barbashin filastik na PE sosai kuma suna buƙatar keɓancewa bisa ga buƙatun abokin ciniki a cikin yanayi daban-daban.

Sigar samfur

Suna	HDPE	LDPE	LLDPE
Wari, guba	Mara guba, mara ɗanɗano, mara wari	Mara guba, mara ɗanɗano, mara wari	Mara guba, mara ɗanɗano, mara wari
Yawan yawa	0.940 ~ 0.976g/cm³	0.910 ~ 0.940g/cm³	0.915 ~ 0.935g/cm³
Crystallinity	85% -65%	45-65%	55-65%
Tsarin kwayoyin halitta	Ya ƙunshi kawai carbon-carbon da carbon-hydrogen bond, waɗanda ke buƙatar ƙarin kuzari don karye	Polymer yana da ƙaramin nauyin kwayoyin halitta kuma yana buƙatar ƙarancin kuzari don karya	Tsarin layin layi, ƙananan sarƙoƙi na reshe, gajerun sarƙoƙi, suna buƙatar ƙarancin ƙarfi don karya
Wurin laushi	125-135 ℃	90-100 ℃	94-108 ℃
Kayan inji	Babban ƙarfi, mai kyau tauri, mai ƙarfi mai ƙarfi	Ƙarfin injina mara kyau	Babban ƙarfi, mai kyau tauri, mai ƙarfi mai ƙarfi
Ƙarfin ƙarfi	Babban	Ƙananan	Mafi girma
Tsawaitawa a lokacin hutu	Mafi girma	Ƙananan	Babban
Ƙarfin tasiri	Mafi girma	Ƙananan	Babban
Ƙwararren danshi da aikin hana ruwa	Yana da kyawawa mai kyau ga ruwa, tururin ruwa da iska, ƙarancin sha ruwa da kuma juriya mai kyau	Rashin danshi da iska	Yana da kyawawa mai kyau ga ruwa, tururin ruwa da iska, ƙarancin sha ruwa da kuma juriya mai kyau
Acid, alkali, lalata, juriyar sauran ƙarfi	Mai jurewa ga lalatawar oxidant mai ƙarfi; Juriya ga acid, alkali da gishiri daban-daban; Ba a iya narkewa a cikin kowane kaushi na halitta, da sauransu.	Acid, alkali, gishiri bayani lalata juriya, amma matalauta sauran ƙarfi juriya	Resistance zuwa acid, alkali da Organic kaushi
Juriya / sanyi	Kyakkyawan zafi da juriya mai sanyi, a dakin da zafin jiki har ma a -40F ƙananan zafin jiki, kyakkyawan juriya mai tasiri, ƙananan zafin jiki mai zafi	Low zafi juriya, low zafin jiki embrittlement zafin jiki	Kyakkyawan zafi da juriya na sanyi Ƙananan zafin jiki embrittlement zafin jiki
Juriya ga fatattakar matsalolin muhalli	Yayi kyau	Mafi kyau	Yayi kyau