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Gudun PVC shine mafi girman ɓangaren kebul na PVC, kuma ingancinsa yana da tasiri mai girma akan kayan injin da lantarki na kayan kebul.

1 Kayan aiki na PVC

Gabaɗaya, ana lura da sarrafa wutar lantarki da ion a cikin polymers, amma matakin ya bambanta.Babban bambanci tsakanin hanyoyin gudanarwa guda biyu shine bambancin masu ɗaukar kaya.A cikin polymers, ruwa mai ɗaukar hoto na injin sarrafa lantarki shine electron kyauta wanda π bond electron ɗin aka karkata.Mai ɗaukar ruwa na injin tafiyar da ion gabaɗaya yana da inganci kuma mara kyau.Yawancin nau'ikan polymers da aka dogara da su ta hanyar lantarki, polymers ne masu haɗaka, kuma babbar sarkar PVC galibi haɗin haɗin gwiwa ce guda ɗaya, ba ta da tsarin haɗin gwiwa, don haka galibi tana gudanar da wutar lantarki ta hanyar ion conduction.Koyaya, a gaban hasken na yanzu da UV, PVC za ta cire HCl kuma ta samar da gutsuttsuran polyolefin mara kyau, don haka akwai π-bonded electrons, wanda zai iya fitar da wutar lantarki.

2.2.1 kwayoyin nauyi

Tasirin nauyin kwayoyin halitta akan tafiyar da kayan aiki na polymers yana da alaƙa da babban tsarin gudanarwa na polymers.Don tafiyar da wutar lantarki, ɗawainiyar za ta ƙaru saboda nauyin kwayoyin halitta yana ƙaruwa kuma tashar intramolecular na lantarki ya tsawaita.Tare da raguwar nauyin kwayoyin halitta, ƙaurawar ion yana ƙaruwa kuma ƙaddamarwa yana ƙaruwa.A lokaci guda, nauyin kwayoyin halitta kuma yana rinjayar kayan aikin injiniya na samfuran kebul.Mafi girman nauyin kwayoyin cutar resin PVC, mafi kyawun juriya na sanyi, kwanciyar hankali na zafi da ƙarfin inji.

2.2.2 Thermal kwanciyar hankali

Zaman lafiyar thermal yana ɗaya daga cikin mahimman bayanai masu mahimmanci da mahimmanci don kimanta ingancin guduro.Yana tasiri kai tsaye fasahar sarrafawa na samfuran ƙasa da kaddarorin samfuran.Tare da yaduwar amfani da kayan gini na PVC, buƙatar kwanciyar hankali na thermal resin PVC yana ƙaruwa da girma.Farin tsufa shine mahimman ƙididdiga don kimanta kwanciyar hankali na guduro, don yin hukunci akan kwanciyar hankali na thermal na guduro.

2.2.3 Ion abun ciki

Gabaɗaya, PVC yana gudanar da wutar lantarki galibi ta hanyar ion conduction, don haka ions suna da tasiri mai mahimmanci akan tafiyarwa.Ƙarfe cations (Na +, K+, Ca2+, Al3+, Zn2+, Mg2+, da dai sauransu) a cikin polymer suna taka muhimmiyar rawa, yayin da anions (Cl-, SO42-, da dai sauransu) ba su da tasiri a kan wutar lantarki saboda su. babban radius da jinkirin ƙaura.Sabanin haka, lokacin da PVC zai iya haifar da sakamako na dechlorination a ƙarƙashin wutar lantarki da hasken UV, an saki Cl-, wanda a cikin wannan yanayin anion yana taka muhimmiyar rawa.

2.2.4 Bayyanar yawa

Bayyanar yawa da kuma sha mai na guduro yana shafar kaddarorin sarrafawa na guduro, musamman ma filastik na guduro, kuma filastik ɗin yana shafar kaddarorin samfuran kai tsaye.Ƙarƙashin tsari iri ɗaya da yanayin sarrafawa, guduro yana da ƙima mai girma da ƙarancin ƙarancin ƙarfi, wanda zai iya rinjayar canja wurin kayan aiki a cikin guduro, yana haifar da babban juriya na samfurin.

2.2.5 wasu

PVC guduro a cikin "fisheye", najasa ions da sauran abubuwa a cikin tsarin samar da kebul sun zama ƙazanta kamar ƙulli-kamar ƙazanta, don haka saman kebul ɗin ba shi da santsi, yana shafar bayyanar samfuran, da "ƙulli" a kusa da samuwar wani lantarki. rata, lalata kayan aikin rufin kayan aikin PVC.

A ƙarƙashin yanayi iri ɗaya bayan aiwatarwa, ƙarancin bayyananniyar, ɗaukar filastik da sauran alamun aikin kai tsaye suna shafar tasirin aikin bayan aiki, kuma nau'ikan filastik daban-daban yana haifar da bambanci na aikin samfur.

Bugu da ƙari, nazarin ya nuna cewa za a iya gabatar da additives tare da ƙungiyoyi masu aiki bayan polyvinyl chloride polymerization, alal misali, a ƙarshen haɗuwa ko kafin bushewa na ƙarshe.Poly yana da 1 ~ 30% danshi tare da jimlar 0.0002 ~ 0.001% polycarboxylic acid, na iya inganta ƙarfin juriya na samfurori.GABATARWA NA 0.1-2% phosphate ion dauke da COMPOUNDS (alkyl hydrogen phosphate, ammonium oxyphosphate, C≤20 alkyl phosphate, Organic phosphate) a dakatar da polyvinyl chloride, da kuma Bugu da kari na alkaline duniya karfe mahadi dauke da 0.1-2%, don haka kamar yadda. saka su a kan polymer, iya yadda ya kamata inganta girma juriya da dielectric akai na guduro.