Yawancin abokan ciniki sun ba da rahoton cewa babban madaidaicin TPU yana bayyana lokacin da aka fara yin shi, me yasa ya zama mara kyau bayan kwana ɗaya kuma yayi kama da launi zuwa shinkafa bayan ƴan kwanaki? A gaskiya ma, TPU yana da lahani na halitta, wanda shine cewa a hankali ya juya launin rawaya a kan lokaci. TPU yana shayar da danshi daga iska kuma ya zama fari, ko kuma wannan ya faru ne saboda ƙaura na additives da aka ƙara yayin sarrafawa. Babban dalili shi ne cewa mai mai ba shi da kyau, kuma yellowing shine halayyar TPU.
TPU resin ne mai launin rawaya, kuma MDI a cikin ISO zai juya rawaya a ƙarƙashin hasken UV, yana nuna cewa TPU yellowing dukiya ce. Don haka, muna buƙatar jinkirta lokacin rawaya na TPU. Don haka yadda za a hana TPU daga yellowing?
Hanyar 1: Guji
1. Zaɓi don haɓaka samfuran baƙi, rawaya, ko duhu a cikin matakin farko na haɓaka sabbin samfura. Ko da waɗannan samfuran TPU sun zama rawaya, ba za a iya ganin bayyanar su ba, don haka a zahiri babu matsala ta rawaya.
2. Guji bayyanar da hasken rana kai tsaye zuwa PU. Wurin ajiyar PU ya kamata ya kasance mai sanyi da iska, kuma ana iya nannade PU cikin jakunkuna na filastik kuma a sanya shi a wuri ba tare da hasken rana ba.
3. Guji gurɓatawa yayin aikin hannu. Yawancin samfuran PU sun gurɓata yayin aiwatar da rarrabuwa ko ceto, wanda ke haifar da launin rawaya kamar gumin ɗan adam da kaushi. Sabili da haka, samfuran PU yakamata su ba da kulawa ta musamman ga tsabtar jikin lamba kuma rage girman tsarin rarrabuwa gwargwadon yiwuwa.
Hanyar 2: Ƙara kayan aiki
1. Kai tsaye zaɓi kayan TPU waɗanda suka dace da ƙayyadaddun juriya na UV.
2. Add da anti yellowing agents. Don haɓaka ikon hana yellowing na samfuran PU, sau da yawa ya zama dole don ƙara wakili na musamman na rigakafin yellowing zuwa albarkatun ƙasa. Koyaya, masu hana yellowing suna da tsada, kuma yakamata mu yi la'akari da fa'idodin tattalin arzikinsu yayin amfani da su. Misali, jikin mu baƙar fata ba ya kula da launin rawaya, don haka za mu iya amfani da kayan albarkatun ƙasa masu rahusa waɗanda ba anti yellowing ba ba tare da abubuwan hana yellowing ba. Kamar yadda magungunan rigakafin yellowing sune kayan ƙara kayan da aka ƙara zuwa bangaren A, muna buƙatar motsawa yayin haɗuwa don cimma rarraba iri ɗaya da tasirin rawaya, in ba haka ba na iya faruwa launin rawaya na gida.
3. Fesa launin rawaya mai juriya. Yawancin nau'ikan fenti guda biyu ne, ɗayan yana cikin feshin ƙura, ɗayan kuma ya fita daga fenti. A spraying na rawaya resistant fenti zai samar da wani m Layer a saman PU gama kayayyakin, guje wa gurbatawa da yellowing lalacewa ta hanyar lamba tsakanin PU fata da kuma yanayi. A halin yanzu ana amfani da wannan fom sosai.
Hanyar 3: Sauya kayan aiki
Yawancin TPU TPU ne mai kamshi, wanda ya ƙunshi zoben benzene kuma yana iya ɗaukar hasken ultraviolet cikin sauƙi kuma yana haifar da rawaya. Wannan shine ainihin dalilin launin rawaya na samfuran TPU. Saboda haka, mutane a cikin masana'antu suna ɗaukar anti ultraviolet, anti yellowing, anti-tsufa da anti ultraviolet na TPU a matsayin ra'ayi iri ɗaya. Yawancin masana'antun TPU sun haɓaka sabon TPU aliphatic don magance wannan matsalar. Kwayoyin TPU na Aliphatic ba su ƙunshi zoben benzene ba kuma suna da kyakkyawan yanayin hoto, ba sa juya rawaya.
Tabbas, aliphatic TPU shima yana da nasa drawbacks a yau:
1. Matsakaicin taurin yana da ɗan kunkuntar, gabaɗaya tsakanin 80A-95a
2. Tsarin sarrafawa yana da hankali sosai kuma yana da sauƙin sarrafawa
3. Rashin nuna gaskiya, zai iya cimma daidaito na 1-2mm kawai. Samfurin mai kauri ya ɗan yi hazo
Lokacin aikawa: Nuwamba-25-2024