Menene Chlorinated Polyethylene (cpe) kuma a ina ake amfani da shi?
Haɗin roba na polyethylene mai laushi da polyethylene mai laushi da polyethylene mai laushi da polydimethylsiloxane wanda aka haɗa shi da ethyl methacrylate (EMA) (PDMS) haɗin roba ne mai tasiri wajen hana zafi a kebul. An yi nazarin halaye daban-daban na lantarki, halayen injiniya da halayen zafi na haɗin. Sakamakon ya nuna cewa ana iya amfani da haɗin a matsayin kayan hana zafi, idan aka kwatanta da kayan roba na silicone, yana da ingantaccen aiki mai kyau.
Tun da daɗewa, mutane sun ɗauki robar silicone a matsayin roba ta musamman don amfani da kebul a cikin yanayi mai zafi da zafi mai yawa. Duk da haka, tsadar robar silicone tana iyakance yawan amfaninta.
LDPE shine filastik mafi girma a masana'antu. Yana da ƙarancin farashi da kyawawan halayen lantarki, don haka ana amfani da shi sosai a matsayin polymer mai hana ruwa a cikin wayoyi da kebul na matsakaici da ƙarancin wutar lantarki. LDPE ba wai kawai yana da ƙarancin farashi ba, har ma yana da ƙarancin dielectric constant da asara, babban juriya, da kyawawan halayen injiniya a ƙasa da zafin yanayi na 90C, don haka yawancin robar roba, kamar robar styrene-butadiene (SBR), robar butyl (IR), neoprene (CR) da sauransu sun rasa wani ɓangare na kasuwa. Idan aka kwatanta da kayan rufin roba na silicone, haɗin polydimethylsiloxane (PDMS) da LDPE yana da fa'idar ƙarancin farashi don biyan matakai daban-daban. Baya ga buƙatun musamman na kebul don watsa wutar lantarki, sarrafawa da kayan aiki, mutane sun ci gaba da haɓaka sabbin kayan rufin polymer daban-daban. Duk da haka, halayen injiniya da juriyar zafi na kayan lantarki na tsarin lantarki mai ƙarancin wutar lantarki (<10kV) sun fi girma fiye da
Halayen lantarki sun fi muhimmanci.
Misali; ya kamata a sami kyakkyawan kwanciyar hankali na kayan aikin injiniya a babban zafin jiki. Hakazalika; buƙatun kebul masu ƙarancin hayaƙi, masu jure wa mai, da masu hana wuta suma sun bambanta. Don haka ya kamata kebul ɗin ya zama Lokaci na aikace-aikacen yana ƙayyade buƙatun don aikin musamman na kebul. Rushewar oxidative na roba da samuwar Layer oxide a saman zai ƙara yawan aiki, saboda bayan an yi oxidized robar, ana samar da polarity tsakanin tarin carbon black.
Rukuni (kamar carboxyl) Waɗannan rukunonin suna ba da hanya mafi gajarta ga electrons. Akwai abubuwa da yawa da za a yi la'akari da su yayin zaɓar abu don aikace-aikace. Dangane da rufin kebul; muhimmin ma'auni shine Iyaka ikon wutar lantarki na ratsa ta cikin layin rufi. Ga wutar lantarki kai tsaye (dc), a bayyane yake cewa amfani da kayan da ke da juriya mai ƙarfi na iya rage kauri na layin rufi; ga canjin wutar lantarki (ac), izinin da asarar da aka samu ba su da yawa.
Fannin wargazawa kuma yana rage kauri na rufi.
Ana iya maye gurbin Ethyl methacrylate (EMA) da robar silicone a matsayin kayan kariya ta amfani da gaurayen PDMS don nau'ikan halayen lantarki daban-daban, halayen injiniya da juriya ga zafi.
Ingancin adadin da aka yi amfani da shi wajen daidaita LDPE da gaurayen PDMSA (50:50).
1. Tsarin kariya mai dorewa, CPE zai fitar da hydrogen chloride lokacin da aka dumama shi ko aka yi masa rauni, don haka ya kamata a yi amfani da masu daidaita abubuwa masu tasirin shan acid a cikin dabarar, kamar calcium stearate, barium stearate, tribasic lead sulfate ko magnesium oxide.
2. Tsarin yin robobi. Ana amfani da robobi na ester a cikin CPEZ, kamar dioctyl phthalate (DOP) da dioctyl adipate (DOA). Sigogin narkewarsu suna kusa da na CM. Kyakkyawan ƙarfin aiki. Amfani da DOA da DOS a cikin robar na iya ba robar kyakkyawan juriya ga sanyi.
3. Tsarin vulcanization na CPE, CPE roba ce mai cike da sinadarai, kuma tsarin vulcanization na sulfur ba zai iya vulcanization shi yadda ya kamata ba. Tsarin thiourea ne mafi inganci daga ciki shine Na-22, amma Na-22 yana da saurin vulcanization a hankali, rashin aikin tsufa mai kyau, saitin matsi mai yawa, kuma Na-22 yana da mummunan cutar kansa. Yana haifar da wari mara daɗi, kuma an takaita amfani da shi a ƙasashen waje.
4. Tsarin cikawa mai ƙarfafawa, CPE wani nau'in roba ne wanda ba ya ƙarfafa kansa, wanda ke buƙatar tsarin ƙarfafawa don samun ƙarfi mafi kyau. Tsarin cikawa mai ƙarfafawa yayi kama da na manne na gabaɗaya. Maganin ƙarfafawa galibi shine baƙin carbon da farin carbon baki. Farin carbon baki zai iya inganta juriyar tsagewa na CPE, kuma zai iya samar da tsarin farin metamethyl don inganta mannewa tsakanin CPE da kwarangwal. haɗa. CPE yana da babban kayan cikawa, kuma tsarin cikawa ya haɗa da sinadarin calcium carbonate, foda talcum, yumbu, da sauransu.
Lokacin Saƙo: Janairu-05-2023
