Wannan samfurin manne ne mai narkewa da ruwa, wanda shine mannen thermoplastic wanda aka shirya ta hanyar polymerization na vinyl acetate monomer a ƙarƙashin aikin mai ƙaddamarwa.Yawancin lokaci ana kiransa farin latex ko PVAC emulsion a takaice.Sunan sinadarai shine polyvinyl acetate adhesive.An yi shi da acetic acid da ethylene don hada vinyl acetate tare da titanium dioxide da aka kara (ana kara ƙananan maki tare da calcium mai haske, talc, da sauran foda).Sa'an nan kuma ana yin su ta hanyar emulsion.A matsayin ruwa mai kauri fari madara.
Bushewa mai sauri, mai kyau na farko, kyakkyawan aiki;mannewa mai karfi, babban ƙarfin matsawa;mai karfi zafi juriya.
yi
(1) Farin latex yana da jerin fa'idodi kamar maganin zafin jiki na al'ada, saurin warkewa, ƙarfin haɗin gwiwa, kuma layin haɗin gwiwa yana da mafi kyawun ƙarfi da karko kuma baya da sauƙin tsufa.Ana iya amfani dashi ko'ina don haɗa samfuran takarda (takardar bangon waya), kuma ana iya amfani dashi azaman manne don suturar ruwa da itace.
(2) Yana amfani da ruwa azaman mai watsawa, yana da aminci don amfani, mara guba, mara ƙonewa, mai sauƙin tsaftacewa, yana ƙarfafawa a cikin zafin jiki, yana da mannewa mai kyau ga itace, takarda da masana'anta, yana da ƙarfin haɗin gwiwa, da warkewa. Layer na manne ba shi da launi Mai haske, mai kyau tauri, baya ƙazantar da abin da aka ɗaure.
(3) Hakanan za'a iya amfani dashi azaman mai gyara resin phenolic, urea-formaldehyde resin da sauran adhesives, kuma ana amfani dashi don yin fenti na latex na polyvinyl acetate.
(4) Emulsion yana da kwanciyar hankali mai kyau, kuma lokacin ajiya zai iya kai fiye da rabin shekara.Saboda haka, ana iya amfani da shi ko'ina a cikin bugu da ɗaure, masana'anta kayan aiki, da haɗin kai na takarda, itace, zane, fata, yumbu, da sauransu.
Siffofin
1. Yana da ƙarfi mannewa zuwa porous kayan kamar itace, takarda, auduga, fata, tukwane, da dai sauransu, kuma farkon danko ne in mun gwada da high.
2. Ana iya warkewa a cikin zafin jiki, kuma saurin warkarwa yana da sauri.
3. Fim ɗin a bayyane yake, baya ƙazantar da adherend, kuma yana da sauƙin aiwatarwa.
4. Yin amfani da ruwa a matsayin matsakaicin watsawa, baya ƙonewa, ba ya ƙunshi iskar gas mai guba, baya gurɓata muhalli, kuma ba shi da ƙazanta.
5. Yana da ruwa mai danko guda ɗaya, wanda ya fi dacewa don amfani.
6. Fim ɗin da aka warke yana da ƙayyadaddun ƙaƙƙarfan ƙarfi, juriya ga dilute alkali, dilute acid, da juriya na mai.
An fi amfani dashi a cikin sarrafa itace, taron kayan daki, nozzles na sigari, kayan ado na gini, haɗin masana'anta, sarrafa samfuran, bugu da ɗaure, masana'anta na hannu, sarrafa fata, gyara lakabin, mannen tayal, da sauransu.
ƙarfi
Fararen latex mai mutunta muhalli dole ne ya fara samun isasshen ƙarfin haɗin gwiwa, don tabbatar da cewa ingancin samfuran takarda ba zai yi tasiri ba bayan haɗin gwiwa.
Don yin hukunci ko ƙarfin haɗin gwiwa na farin latex mai ma'amala da muhalli ya cancanta, sassa biyu na kayan da aka manne za a iya tsage su tare da haɗin haɗin gwiwa.Idan an gano abubuwan da aka haɗa sun lalace bayan yage, ƙarfin haɗin gwiwa ya isa;idan kawai haɗin haɗin haɗin gwiwa ya rabu, Yana nuna cewa ƙarfin farin latex na muhalli bai isa ba.Wani lokaci farin latex mai dacewa da muhalli tare da rashin aiki mara kyau zai ragu kuma fim ɗin zai zama mai rauni bayan an adana shi na wani lokaci a cikin yanayin zafi mai zafi ko ƙananan zafin jiki.Sabili da haka, wajibi ne a yi canjin yanayin zafi mai zafi da ƙananan gwaje-gwajen embrittlement zafin jiki don sanin ko ingancinsa ya dogara.
Lokacin aikawa: Mayu-25-2021