Tasirin Ƙarfafawar Resin
PVC guduro ne mai zafi-m abu, kuma akwai da yawa lahani a cikin kwayoyin tsarin, kamar biyu bonds, allyl kungiyoyin, saura initiator karshen kungiyoyin, da dai sauransu bisa ga inji na free radicals, wadannan lahani suna sauƙin kunna ta zafi da kuma haske don samar da free radicals.Karkashin aikin free radicals, polyvinyl chloride yana fuskantar dehydrochlorination da lalacewa bisa tsarin tsarin sarkar.Ci gaba da amsawar dehydrochlorination yana haifar da jerin polyene na haɗin haɗin gwiwa biyu akan babban sarkar kwayar halittar polyvinyl chloride, wanda shine tsarin chromogenic.Matukar adadin haɗin haɗin haɗin gwiwa biyu ya kai 5 ~ 7, polyvinyl chloride yana farawa zuwa Discoloration, idan ya wuce 10, sai ya juya launin rawaya, jerin gwanon yana ci gaba da tsawo, kuma launi na polyvinyl chloride yana zurfafawa a hankali, kuma a ƙarshe ya zama launin ruwan kasa ko launin ruwan kasa. ko da baki.Tsayar da kwanciyar hankali na PVC a yanayin yanayin aiki shine tushen duk aikin toning da whitening.
Sakamakon zafin jiki
Bayanan bayanan filastik na PVC an yi su ne kuma an kafa su a zazzabi na 185 ~ 195 ° C, kuma lokacin dumama yana da tsayin mintuna da yawa, wanda ke buƙatar pigments da masu haskakawa da ake amfani da su don samun kwanciyar hankali na thermal.Domin rutile titanium dioxide, da crystal tsarin ne cube, Ti atom da kuma O atoms an shirya a hankali, da crystal tsarin ne sosai barga, kuma shi har yanzu iya kula da kwanciyar hankali na tsari da kuma aiki a karkashin aiki zafin jiki na PVC profiles;ultramarine ne aluminum silicate.Abubuwan da ke dauke da sulfur, juriya na zafi kuma yana da kyau sosai.Duk da haka, ga masu ba da fata mai kyalli, nau'ikan nau'ikan nau'ikan nau'ikan fata masu kyalli suma suna da bambance-bambance a aikin juriyar zafinsu.
Tasirin acid
Tsarin aiki na PVC koyaushe yana tare da bazuwar ƙwayoyin PVC, kuma ana samar da adadi mai yawa na hydrogen chloride yayin aikin lalata.Gas na hydrogen chloride a babban zafin jiki yana da lalacewa sosai kuma acidic.Daga cikin kayan ukun da ke sama, TiO2 yana da mafi girman juriya na lalata acid, biye da wakilai masu fari mai kyalli, kuma ultramarine blue shine mafi muni (a cikin yanayin acidic, ultramarine blue yana canzawa daga shuɗi zuwa fari-fari kuma yana samar da mafi girman kumfa).Dalilin da yasa har yanzu ana amfani da blue ultramarine a cikin tsarin bayanin martaba maimakon phthalocyanin blue tare da mafi kyawun juriya na acid shine yafi saboda ikon tinting na blue phthalocyanine yana da ƙarfi sosai, wanda shine kusan sau 20 ~ 40 na ultramarine blue.Ƙarfin haɗuwa na mahaɗin, ƙarin adadin ultramarine blue a cikin kowane rabo shine kawai 5 ~ 20g.Idan an maye gurbin shi da blue phthalocyanine, adadin ƙarin yana da ƙananan ƙananan, kuma kuskuren ma'auni yana da girma sosai, wanda zai haifar da batches na bayanan martaba.Mummunan chromatic aberration.
Tasirin adjuvants
Kayan aikin samarwa da fasaha na bayanan bayanan filastik na PVC a cikin ƙasata ana shigo da su ne daga Turai da Amurka.Har yanzu akwai adadin gubar dalma a ciki.Sulfur da ke ƙunshe a cikin shuɗin ultramarine na iya yin hulɗa tare da gubar a cikin stabilizer, yana haifar da gurɓataccen bayanan martaba na gubar sulfide.
Tasirin sashi mai haske
Titanium dioxide shine tushen toning dafarin cikina farin bayanan martaba na PVC.Yayin da adadin titanium dioxide ya karu, farin samfurin yana ƙaruwa.
Bugu da ƙari, a matsayin babban wakili na kariya na UV a cikin samar da kayan da aka bayyana, adadin titanium dioxide yana da wasu bukatu.Gabaɗaya magana, adadin titanium dioxide yakamata ya kai 4 ~ 8phr.
Ana amfani da shuɗin Ultramarine don "rufe rawaya" don cimma manufar farar fata.Idan adadin ya yi ƙanƙanta, tasirin fari ba shi da kyau.Idan adadin ya yi girma sosai, yana da sauƙi don sanya kayan da aka zana su zama shuɗi kuma suna haifar da ƙarin gubar sulfide, wanda ke rinjayar ƙwanƙwasa na kayan da aka yi.Sabili da haka, ana sarrafa adadin sa yawanci ya zama kusan 0.5% na adadin titanium dioxide.
Fluorescent whitening agentszai iya ɗaukar haskoki na ultraviolet yadda ya kamata na wani tsayin raƙuman ruwa kuma yana fitar da su a cikin siffar haske mai gani.Tare da haɓakar adadin mai ba da fata mai kyalli, farin samfurin yana ƙaruwa;amma lokacin da ma'aunin fata na fluorescent ya kai wani matsayi, ci gaba da ƙara yawan adadin ba shi da wani tasiri mai mahimmanci a kan fararen bayanan PVC, kuma wani lokacin yana raguwa, kuma adadin ya fi girma.Dole ne a yi la'akari da tasiri akan aikin sarrafawa da kayan aikin jiki da na inji na kayan da aka bayyana.
Lokacin aikawa: Maris 26-2022