Impushana ehlakazeka kabusha i-VAE
Imikhiqizo yempushana ye-polymer ehlakazeka kabusha iwukuqanjwa okusha okubalulekile emkhakheni wokwakha kanye nezicelo zezimboni, enikeza izixazululo eziguquguqukayo ngenxa yezakhiwo namandla ayo ahlukile. Lezi zimpushana ngokuyinhloko azincibiliki emanzini futhi zingahlukaniswa ngezinhlobo ezahlukene kuye ngokuthi zibunjwe kanjani amakhemikhali, okuhlanganisa ama-ethylene/vinyl acetate copolymers, ama-vinyl acetate/ethylene terephthalate copolymers, nama-copolymers e-acrylic acid. Uhlobo ngalunye lwe-copolymer lunikeza izici ezihlukile ezibhekelela ukusetshenziswa okuhlukahlukene ezimbonini ezahlukahlukene, kusukela kokunamathelayo kuye kokunamathelayo, ngaleyo ndlela kwandise amandla okusetshenziswa ezintweni zokwakha ezahlukahlukene. Lokhu kuguquguquka kubalulekile ekuhlangabezaneni nezidingo ezikhulayo zezinto ezithuthukisiwe ezisiza ukusebenza okuthuthukisiwe nokuqina emikhiqizweni yansuku zonke.
Inqubo yokukhiqiza izimpushana ze-polymer ezihlakazeka kabusha ihlanganisa amasu okufafaza, okuholela ekwakhekeni kwezinhlayiya zempushana ezinhle ezilungele ukuphathwa nokucubungula. Okubalulekile, lezi zimpushana zivikelwe utshwala be-polyvinyl ngesikhathi sokukhiqiza, ziqinisekisa ukuthi zigcina ubuqotho bazo kuze kube yilapho sezilungele ukuphinde zihlakazwe. Uma lezi zimpushana ezihlakazeka kabusha zihlangana namanzi, zibonisa ikhono elikhethekile lokubuyela ngokushesha esimweni soketshezi, okuvumela ukusetshenziswa kalula ezinhlelweni ezihlukahlukene. Lesi sici sibaluleke kakhulu ezindaweni lapho ukusebenza kahle kwesikhathi kubalulekile, njengoba kuvumela osonkontileka nezingcweti zemboni ukuthi basebenze ngaphandle komthungo ngezinto ngaphandle kokulinda isikhathi eside sokuxutshwa noma ukwenziwa kusebenze.
Ukusetshenziswa okubanzi kwezimpushana ze-polymer ezihlakazeka kabusha zithuthukiswa futhi yizici zazo zokusebenza okuphezulu. Umthamo wabo wokunamathela ophakeme uwenza alungele ukusetshenziswa ezintweni zokunamathisela ekwakhiweni, izinamathelisi zamathayili, nama-ejenti ahlukahlukene wokubopha, anikeze ukuxhumana okuqinile, okuthembekile ezintweni zokwakha. Ukwengeza, ukumelana kwamanzi okungokwemvelo kwalezi zimpushana ze-polymer kunikeza isivikelo ekungeneni komswakama, okubalulekile ekugcineni impilo ende nokuqina kwezakhiwo. Izakhiwo ze-thermal insulation zibuye zibe nomthelela ekusebenzeni kahle kwamandla ezakhiweni, okuzenza zibe yinketho ethandwayo phakathi kwabakhi bezakhiwo nonjiniyela abagxile ezisombululweni zokuklama ezisimeme. Njengoba izimboni ziqhubeka nokufuna izinto ezintsha zokuthuthukisa ikhwalithi nokusebenza komkhiqizo, indima yezimpushana ze-polymer ezihlakazeka kabusha cishe izokhula igqame nakakhulu, igqamise ukubaluleka kwazo kukho kokubili izinhlelo zokusebenza zamanje nezesikhathi esizayo.
