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Habka Soo saarista Filimka BOPET: Dulmar

2024-07-10

Filimka BOPET, sida loo yaqaano bixially oriented polyethylene terephthalate, waa filim polyester ah oo lagu sameeyay iyadoo lagu kala bixinayo polyetylen terephthalate (PET) labadiisa jiho ee aasaasiga ah si loo sameeyo filim la farsameeyey oo la isku qurxiyo.

Waxaa soo saartay shirkadda British ICI ee 1950-meeyadii.

Waxay leedahay faa'iidooyin badan oo xoog adkaysi sare leh, kiimikaad iyo xasilloonida cabbirka, hufnaanta, milicsiga, gaaska iyo guryaha caraf udgoonka, iyo dahaarka korantada.

Sanado badan oo horumar ah ka dib, alaabtu waxay ka soo baxday filimkii asalka ahaa ee dahaarka ilaa filimka capacitor-ka ee hadda jira, filim baakad, filim indho-sarcaad leh, iwm.

Dhumucdiisu waxay noqon kartaa 4.5um ilaa 350 μm.

Nidaamkeeda wax-soo-saarku waxa kale oo uu ka soo baxay wax-soo-saarka dufcaddii kettle ee fudud ilaa fidin badan iyo kala-bixin laba jiho ah oo isku mar ah.

Qaabka wax soo saarka ayaa sidoo kale ka soo baxay filim fidsan ilaa filim isku dhafan oo isku dhafan, filim la xoojiyay, iyo filim dahaarka leh.

Filimka Polyester-ka ayaa noqday mid ka mid ah noocyada filimada sida dhaqsaha leh u koraya ee suuqa.

Dehui FIlim waa mid ka mid ah iibiyeyaasha filimada bopet ee Shiinaha. Waqtigan xaadirka ah, Waxaanu inta badan ku soo saarnaa hab laba-tallaabo ah oo laba-geesood ah habka fidinta. Iyadoo ballaarinta mugga codsigeeda, shuruudaha tayada filimada polyester-ka ayaa sii kordhaya oo sarreeya. Nagu qasbay in aan tayada hagaajino oo aan weyneyno wax soo saarka.

Habka wax soo saarka filimka BOPET

Hadda, aan soo bandhigno habka wax soo saarka filimka bopet. Habka guud waa sida soo socota:

PET resin qalajinta → shubista → fidinta dheer ee go'yaal qaro weyn

PET xaashida kabka ee dhalaalaysa

Ka dib markii la dhalaaliyay oo balaastig lagu dhejiyay resinka PET ee engegan, ka dibna lagu qaso filtarrada aan fiicneyn iyo kuwa wanaagsan iyo qasaha, waxaa loo qaadaa madaxa mashiinka iyadoo loo marayo bamka cabbirka. Kadibna qabooji rullaluistemadka demiya oo la geliyaa xaleef qaro weyn si loo isticmaalo.

Ka-soo-baxa bixially fidsan

PET filimka qaro weyn Biaxial (jihada) iskala bixintu waa in la kala bixiyo filimka ama xaashida laga soo saaray bakhtiiye heerkul gaar ah. Jihooyinka dhaadheer iyo kuwa leexsan si loo sameeyo silsiladda molecular.

Wajiga kristanta ah ee la go'aamin doono waa mid u janjeedha, ka dibna daaweynta kuleyliyaha ayaa lagu sameeyaa kiiska kala-baxa.

Filimka bixially fidsan, iyadoo ay ugu wacan tahay jihaynta qaybaha molecular, waxay hagaajisaa crystallinity.

Markaa waxay si weyn u kordhin kartaa xoogga jilicsanaanta, moodooyinka jilicsan ee jilicsan, xoogga saamaynta, xoogga jeexjeexa, hagaajinta caabbinta qabow, daah-furnaanta, hawada-xakamaynta, dahaarka korantada, iyo dhalaalka.

Inta badan filimka fidsan wuxuu qaataa habka fidinta biaxial ee isku xigta ee nooca diyaaradda.