Akwụkwọ a na-enyocha otú okpomọkụ stabilizers si emetụta ngwaahịa PVC, na-elekwasị anyaokpomọkụ na-eguzogide, nhazi, na nghọta. Site n'inyocha akwụkwọ na data nnwale, anyị na-enyocha mmekọrịta dị n'etiti stabilizers na resin PVC, yana otu ha si akpụ nkwụsi ike nke okpomọkụ, ịdị mfe nrụpụta, na ngwa anya.
1. Okwu mmalite
PVC bụ thermoplastic a na-ejikarị eme ihe, mana enweghị ike ikpo ọkụ ya na-egbochi nhazi.Okpomọkụ stabilizersbelata mmebi n'oge dị elu yana emetụta nhazi na nghọta - dị oke mkpa maka ngwa dị ka nkwakọ ngwaahịa na ihe nkiri ụlọ.
2. Nguzogide okpomọkụ nke ndị na-eme ka ọ dị elu na PVC
2.1 Usoro nkwụsi ike
Ụdị stabilizers dị iche iche (ndụ - dabere,calcium - zinc, organotin) na-eji ụzọ dị iche iche:
Ndu – dabere: Meghachi omume na atom Cl labile na agbụ PVC iji mepụta ogige kwụsiri ike, na-egbochi mmebi.
Calcium - zinc: Jikọta acid - njide na radical - scavenging.
Organotin (methyl/butyl tin): Jikọta ya na ụdọ polymer iji gbochie dehydrochlorination, na-ebelata mmebi nke ọma.
2.2 Na-enyocha nkwụsi ike nke okpomọkụ
Nnwale nyocha nke Thermogravimetric (TGA) na-egosi organotin - PVC kwụsiri ike nwere ọnọdụ mbibi mmalite dị elu karịa usoro calcium omenala - zinc. Ọ bụ ezie na ihe nkwụsi ike dabere na ndu na-enye nkwụsi ike ogologo oge na usoro ụfọdụ, ihe gbasara gburugburu ebe obibi/ahụike na-amachibido iji.
3. Mmetụta Processability
3.1 Na-agbaze agbaze & viscosity
Ndị na-emezi ihe na-agbanwe àgwà agbaze nke PVC:
Calcium - zinc: Nwere ike ịbawanye mgbaze viscosity, na-egbochi extrusion/injection ịkpụzi.
Organotin: Belata viscosity maka smoother, ala - temp nhazi-dị mma maka elu-ọsọ ahịrị.
Ndu – dabere: Na-agbaze na-agafeghị oke mana windo nhazi dị warara n'ihi efere - pụọ n'ihe egwu.
3.2 mmanu mmanu & Mwepụta ebu
Ụfọdụ stabilizers na-arụ ọrụ dị ka mmanu mmanu:
Calcium – usoro zinc na-agụnyekarị mmanu ime ime iji kwalite ntọhapụ ebu na ịkpụzi injection.
Organotin stabilizers na-akwalite PVC - ndakọrịta mgbakwunye, na-enyere aka nhazi usoro.
4. Mmetụta na nghọta
4.1 Mmekọrịta na PVC Structure
Nghọta na-adabere na mgbasa nke stabilizer na PVC:
Ọfọn - gbasasịrị, obere - urughuru calcium - zinc stabilizers na-ebelata ịgbasa ọkụ, na-echekwa idoanya.
Organotin stabilizersitinye n'ime agbụ PVC, na-ebelata mgbagha anya.
Ndị na-eme ihe nkwụsi ike na-edu ndú (ndị buru ibu, ndị na-ekesa na-enweghị isi) na-eme ka ọkụ ọkụ dị arọ, na-ebelata nghọta.
4.2 Ụdị Stabilizer & nghọta
Ọmụmụ ihe atụnyere na-egosi:
Organotin - ihe nkiri PVC kwụsiri ike ruru> 90% nnyefe ọkụ.
Calcium- zinc stabilizers na-enye nnyefe ~ 85-88%.
Ndị na-eme ihe nkwụsi ike nke ndu na-eme nke ka njọ.
Ọdịda dị ka "anya azụ" (kegidere na mma stabilizer / mgbasa) na-ebelatakwa ihe doro anya - ndị na-eme ka ọ dị elu na-ebelata okwu ndị a.
5. Nkwubi okwu
Okpomọkụ stabilizers dị mkpa maka nhazi PVC, ịkpụzi nguzogide okpomọkụ, nhazi, na nghọta:
Ndu – dabere: Nye nkwụsi ike mana chere azụ azụ gburugburu.
Calcium - zinc: Eco – enyi na enyi mana ọ chọrọ ndozi na nhazi / nghọta.
Organotin: Excel n'akụkụ niile mana ọ na-eche nsogbu ego/usoro iwu ihu na mpaghara ụfọdụ.
Nchọpụta ga-eme n'ọdịnihu kwesịrị ịzụlite ihe nkwụsi ike na-edozi nkwado, nhazi nhazi, na àgwà anya iji gboo mkpa ụlọ ọrụ.
Oge nzipu: Jun-23-2025