labarai

Wakilin samar da fim shine babban ɓangaren mai shigar da fiber ɗin gilashi, gabaɗaya yana ɗaukar kashi 2% zuwa 15% na jimlar yawan tsarin shigar da fiber ɗin, aikinsa shine haɗa fiber ɗin gilashi cikin dam, wajen samar da kariya ga zaruruwa, don haka dam ɗin fiber ɗin suna da kyakkyawan matakin tauri, haɗuwa, don biyan buƙatun tsari na gaba a cikin samfuran fiber ɗin gilashi. Wakilan samar da fim da aka fi amfani da su a cikin tsarin shigar da fiber ɗin gilashi sune polymers, gami da resin epoxy, polyurethane, polyester, resin phenolic, dispersion polypropylene da aka gyara, ko emulsions. Ayyukan wakilan samar da fim ya dogara ne akan tsarin kwayoyin halitta da nauyin ƙwayoyin polymer. Ga wakilin samar da fim iri ɗaya, tauri nazaren gilashiza a iya daidaita shi ta hanyar nauyin kwayoyin halitta na wakilin samar da fim, kuma wakilin samar da fim mai nauyin kwayoyin halitta mai girma zai sami tauri mafi girma na zaren gilashi, wanda ya dace da maganin samankayayyakin fiber ɗin gilashi masu ƙarfi da aka yanke da thermoplastic, yayin da wani wakili mai samar da fim mai ƙarancin nauyin kwayoyin halitta ya dace da samar da zare da ake amfani da su wajen naɗewa da jan ƙira. Polymers na resin Epoxy suna ɗauke da ƙungiyoyin aliphatic hydroxyl, ether, da epoxy, kuma akwai jan hankali mai ƙarfi tsakanin ƙungiyoyin polar a cikin wakilan samar da fim na epoxy, don haka suna da kyakkyawan mannewa da haɗakar zare akan gilashin;

Bugu da ƙari, ƙungiyar epoxy a cikin wakilin samar da fim ɗin epoxy na iya amsawa da ƙungiyar hydroxyl ta ƙarshe, ƙungiyar carboxyl ta ƙarshe, ƙungiyar amino ta ƙarshe, da sauran ƙungiyoyi masu aiki a cikin robobi na injiniya kamar PBT, PET, PA, PC, da sauransu, don inganta ƙarfin haɗin gwiwa tsakanin zaren gilashi da resin. Masu samar da fim ɗin Polyester suna ɗauke da ƙungiyoyin ester da yawa, haɗin gwiwa na sinadarai marasa cikawa, da ƙungiyoyin hydrophilic a cikin babban sarkar, kuma aikinsu ya dogara da nau'in acid da barasa da ake amfani da su wajen haɗa polyester da rabo. Lokacin da resin tushe ya kasance resin polyester mara cikawa, haɗin gwiwa biyu marasa cikawa a cikin wakilin samar da fim ɗin polyester na iya polymerize da haɗa haɗin gwiwa biyu a cikin resin tushe don samar da haɗin gwiwa mai ƙarfi ko haɗuwa ta zahiri, wanda ke inganta ƙarfin haɗin gwiwa ta hanyar fuska. Masu samar da fim ɗin Polyester galibi suna da kyawawan kaddarorin jika da shiga ciki kuma saboda haka ana amfani da su azaman masu jika a cikin pultrusion, winding, feshi, chevron, da sauran samfura. Sarkar kwayoyin halitta mai samar da fim ɗin polyurethane tana ɗauke da tsarin carbamete mai maimaitawa, kasancewar waɗannan ƙungiyoyin polar yana sa fiber ɗin polyurethane zuwa gilashi suna da kyakkyawan ɗaurewa, sassan laushi da tauri na ƙwayoyin halitta na haɗuwa da babban sassauci da juriya ga abrasion, a lokaci guda, polyurethane a cikin rukunin isocyanate za a iya shigar da shi tare da wakilin haɗin amino da resin matrix a cikin amsawar sinadarai, don haɓaka haɗin fuska, inganta aikinkayan haɗin kaikayayyakin.