Menene Chlorinated Polyethylene (cpe) kuma A ina ake Amfani da shi?
Argonated polyethylene cpe low yawa polyethylene 2 silicone roba saje na USB rufi abu ne low yawa polyethylene (LDPE) da kuma polydimethylsiloxane compatibilized by ethyl methacrylate (EMA) (PDMS) roba gauraya ne mai tasiri zafi-resistant na USB rufi abu. An yi nazarin kaddarorin lantarki daban-daban, kaddarorin inji da kaddarorin thermal na gauraya. Sakamakon ya nuna cewa ana iya amfani da haɗuwa a matsayin kayan haɓakar thermal, idan aka kwatanta da kayan roba na silicone, yana da mafi kyawun farashi.
Na dogon lokaci, mutane sun dauki silicone roba a matsayin roba na musamman don igiyoyi a cikin yanayin zafi mai yawa da ƙananan. Koyaya, farashi mai tsada na roba na silicone yana iyakance kewayon aikace-aikacen sa.
LDPE shine filastik tare da mafi girman adadin a cikin masana'antu. Yana da ƙananan farashi da kyawawan kaddarorin lantarki, don haka ana amfani dashi sosai azaman insulating polymer a matsakaici da ƙananan wayoyi da igiyoyi. LDPE ba kawai low a farashi ba amma kuma in mun gwada da Low dielectric akai-akai da kuma asarar factor, high resistivity, da kyau kwarai inji Properties kasa da na yanayi zafin jiki na 90C, don haka mafi roba roba, irin su styrene-butadiene roba (SBR), butyl rubber (IR). ), neoprene (CR) da sauransu sun rasa wani ɓangare na kasuwar kasuwa. Idan aka kwatanta da silicone roba rufi abu, saje na polydimethylsiloxane (PDMS) da kuma LDPE yana da amfani da low cost domin saduwa da daban-daban maki, Bugu da kari ga na musamman bukatun na igiyoyi don wutar lantarki watsa, iko da kayan aiki, mutane sun ci gaba da ci gaba. daban-daban sabon polymer rufi kayan. Duk da haka, kayan aikin injiniya da juriya na zafi na ƙananan lantarki tsarin lantarki (<10kV) kayan sun fi girma
Abubuwan lantarki sun fi mahimmanci.
Misali; na USB rufi Layer ga tanderu ya kamata da kyau kwanciyar hankali na inji Properties a high zafin jiki. Hakazalika; Abubuwan da ake buƙata don ƙananan hayaki, mai jure wa, da igiyoyi masu hana wuta suma sun bambanta. Don haka kebul ya kamata Lokacin aikace-aikacen ya ƙayyade buƙatun don aikin musamman na kebul ɗin. Lalacewar oxidative na roba da kuma samuwar oxide Layer a saman zai kara yawan aiki, saboda bayan da roba ya zama oxidized, an haifar da polarity tsakanin carbon black aggregates.
Ƙungiyoyi (irin su carboxyl) Waɗannan ƙungiyoyi suna ba da gajeriyar hanya don electrons. Akwai abubuwa da yawa da yakamata ayi la'akari yayin zabar abu don aikace-aikace. Dangane da abin rufe fuska na USB; Muhimmiyar siga ita ce Iyakanta ikon halin yanzu don wucewa ta cikin rufin rufin. Don halin yanzu kai tsaye (dc), a bayyane yake cewa yin amfani da kayan juriya na iya rage kauri daga cikin rufin rufi; don madaidaicin halin yanzu (ac), izinin dangi da asara sun yi ƙasa kaɗan.
Fatar ɓarna kuma yana rage kauri mai rufi.
Ethyl methacrylate (EMA) za a iya maye gurbinsa da roba silicone a matsayin abin rufe fuska ta amfani da PDMS gauraya daban-daban na lantarki Properties, inji Properties da zafi juriya.
Tasirin adadin daidai yake azaman mai daidaitawa don haɗakarwar LDPE da PDMSA (50:50).
1. Stable kariya tsarin, CPE zai saki hydrogen chloride a lokacin da mai tsanani ko vulcanized, don haka stabilizers da acid sha sakamako ya kamata a yi amfani da a cikin dabara, kamar alli stearate, barium stearate, tribasic gubar sulfate ko magnesium oxide .
2. Tsarin filastik. Ana amfani da filastik na Ester a cikin CPEZ, irin su dioctyl phthalate (DOP) da dioctyl adipate (DOA). Siffofin solubility ɗin su suna kusa da na CM. Kyakkyawan iyawa. Yin amfani da DOA da DOS a cikin roba na iya baiwa roba da kyakkyawan juriya na sanyi.
3. The vulcanization tsarin na CPE, CPE ne cikakken roba, da kuma na kowa sulfur vulcanization tsarin ba zai iya vulcanize shi yadda ya kamata. Aikace-aikacen farko na tsarin vulcanization na CPE shine tsarin thiourea, mafi inganci wanda shine Na-22, amma Na-22 yana da saurin saurin vulcanization, rashin aikin tsufa, saitin matsawa mai yawa, kuma Na-22 yana da cutar kansa mai tsanani. Yana haifar da wari mara kyau, kuma an taƙaita amfani da shi a ƙasashen waje.
4. Ƙarfafa tsarin cikawa, CPE wani nau'i ne na roba wanda ba shi da ƙarfi, wanda ke buƙatar tsarin ƙarfafawa don samun mafi kyawun ƙarfi. Tsarinsa mai ƙarfafawa yayi kama da na manne-manufa na gaba ɗaya. Wakilin ƙarfafawa yafi carbon baki da fari baƙar fata. White carbon baki iya inganta hawaye juriya na CPE, kuma zai iya samar da wani metamethyl farin tsarin inganta mannewa tsakanin CPE da kwarangwal. hada. CPE yana da babban kayan cikawa, kuma tsarin cikawa ya haɗa da alli carbonate, talcum foda, yumbu, da sauransu.
Lokacin aikawa: Janairu-05-2023
