2, Kugwiritsa ntchito mwachindunji kwa PVDC gulu nembanemba ku China:
China yayamba kugwiritsa ntchito PVDC resin kuyambira koyambirira kwa 1980s.Choyamba, kubadwa kwa soseji ya ham kudabweretsa filimu ya PVDC ku China.Kenako makampani aku China adathyola kutsekeka kwa United States ndi Japan paukadaulo uwu ndipo adayambitsa ukadaulo waukadaulo ndi zida za filimu ya PVDC.Ndi kukula kosalekeza kwa chuma cha dziko la China komanso kusintha kwa zinthu zakuthupi ndi chikhalidwe cha anthu, kuchuluka kwa kufunikira kwa ma CD kukukulirakulira.Kuchulukirachulukira kogwira ntchito kumagwiritsidwa ntchito kwambiri pazinthu zonse zachuma zadziko komanso moyo wa anthu.PVDC ndi mtsogoleri pakukwaniritsamkulu chotchinga ma CDkapangidwe mtengo dzuwa ndi chinyezi odalirika, mpweya ndi fungo chotchinga.
Popeza aliyense amadziwa zambiri za filimu ya PVDC casing, apa tiyang'ana njira zamakono ndi katundu wa filimu ya PVDC.Filimu yophatikizika imapanga zofooka za chinthu chilichonse, imapereka kusewera kwathunthu kumayendedwe ake abwino kwambiri, ndipo imakhala ndi mawonekedwe omwe chinthu chimodzi chilibe.Njira zophatikizika za PVDC:
Kupaka, youma, zosungunulira-free, otentha-kusungunuka, co-extrusion, etc. Pakali pano, kupanga zoweta PVDC gulu filimu makamaka utenga ❖ kuyanika njira, youma njira, zosungunulira-free ndi co-extrusion njira:
1) filimu yokutira ya PVDC
PVDC latex ❖ kuyanika ntchito pamwamba pa gawo lapansi (OPP, PA, PE, PET, etc.) kupanga gulu filimu kusintha mpweya chotchinga ntchito gawo lapansi.Makhalidwe amachitidwe:
Chotchinga chabwino;The makulidwe a PVDC wosanjikiza zambiri 2 ~ 3um, ndi mtengo wotsika;Simungathe kupirira kutentha kutentha.
2) PVDC laminated gulu nembanemba
Amapangidwa ndi mafilimu angapo osanjikiza amodzi, ndipo gawo lililonse limalumikizidwa ndi zomatira.Ikhoza kugawidwa mu:
Dry (zosungunulira) lamination ndi zosungunulira-free lamination.
Makhalidwe amachitidwe:
A. Ndikatundu wotchinga wapamwamba komanso mawonekedwe osinthika, itha kuphatikizidwa ndi BOPA, CPP, CPE, BOPP, BOPET, PVC ndi mafilimu ena (mwachitsanzo, BOPP, PET, PA angagwiritsidwe ntchito ngati wosanjikiza akunja kusindikiza, PE, CPP ndi zotsatira zina zabwino matenthedwe kusindikiza angagwiritsidwe ntchito monga wosanjikiza wosindikizira matenthedwe, kukana bwino kwa PA kutha kugwiritsidwa ntchito ngati kusanjikiza kukana, ndipo PVDC ingagwiritsidwe ntchito ngati chotchinga chotchinga kutsekereza mpweya ndi madzi).
B. Kukana kutentha kwabwino.Zitha kupangidwa kukhala kutentha kwambiri ndi otsika kutentha kugonjetsedwa structural gulu filimu ndi kutentha kukana - 20 ℃ ~ 121 ℃;
Zabwino zamakina ndi kutentha-kusindikiza katundu, oyenera zosiyanasiyana ma CD ma CD, mtundu kusindikiza, malire ndi filimu imodzi, panthawiyi makulidwe a wosanjikiza aliyense sangakhale woonda kwambiri ndipo chiwerengero cha zigawo gulu sayenera kukhala ochuluka (nthawi zambiri osati kuposa kuposa 5 zigawo).
3) PVDC multilayer co-extruded composite film
Mapulasitiki osiyanasiyana amatulutsidwa ndi ma extruder angapo nthawi imodzi kudzera mu mutu wakufa kuti apange filimu yokonzedwa mwadongosolo, kutulutsa koonekera bwino kwa interlayer, kumangirira kolimba komanso makulidwe a interlayer.Malinga ndi njira zosiyanasiyana zopangira, zitha kugawidwa mu filimu yowombedwa ndi co-extrusion ndi filimu ya co-extrusion.PVDC zakuthupi nthawi zambiri amagwiritsidwa ntchito ngati chotchinga chapakati cha filimu yophatikizika.Makhalidwe amachitidwe: chotchinga chachikulu, ukhondo wabwino, zomatira utomoni ntchito kugwirizana, kupewa vuto la zosungunulira zotsalira mu gulu youma (zosungunulira-based), ndipo akhoza kuphikidwa pa zosakwana madigiri 100;Firimuyi ikhoza kukonzedwa ndi kupanga matenthedwe achiwiri pogwiritsa ntchito kayendedwe ka nthambi;Pali zigawo zambiri zomwe zingathe kupangidwa, ndipo tsopano zafika 13 zigawo.Makulidwe a interlayer amatha kukhala ochepa kwambiri, omwe amatha kupulumutsa kuchuluka kwa utomoni ndi mtengo wapamwamba ndikupeza ntchito yotsika mtengo kwambiri.
Nthawi yotumiza: Jun-06-2023