Njirimara nke ihe plastik PVC

Njirimara nke ihe plastik PVC

plastic ebu-86

Njirimara 1: PVC siri ike bụ otu n'ime ihe plastik a na-ejikarị eme ihe.Ihe PVC bụ ihe na-abụghị kristal.

Njirimara 2: A na-agbakwunyekarị ihe ndị na-eme ihe ike, ihe na-eme mmanụ, ndị na-ahụ maka nhazi inyeaka, pigmenti, ndị na-egbochi mmetụta na ihe ndị ọzọ na-agbakwụnye na ihe PVC n'ezie.

Njirimara 3: Ihe PVC nwere enweghị ọkụ, ike dị elu, nguzogide ihu igwe na nkwụsi ike geometric mara mma.

Njirimara 4: PVC nwere ike iguzogide oxidants, na-ebelata ndị ọrụ na acid siri ike.Otú ọ dị, ọ nwere ike imebi ya site na acids oxidizing gbanyere mkpọrọgwụ dị ka sulfuric acid na-etinye uche na nitric acid na-adịghị mma maka kọntaktị na hydrocarbons aromatic na chlorinated hydrocarbons.

Njirimara 5: Igwe ọkụ na-agbaze nke PVC n'oge nhazi bụ usoro usoro dị oke mkpa.Ọ bụrụ na oke a ezighi ezi, ọ ga-ebute nsogbu nke ire ere.

Njirimara 6: Njirimara eruba nke PVC adịghị mma, usoro usoro ya dịkwa warara.Karịsịa ihe dị arọ PVC dị elu na-esiwanye ike ịhazi (ụdị ihe a na-achọkarị ịgbakwunye mmanu mmanu iji meziwanye àgwà ndị na-asọpụta), ya mere, a na-ejikarị ihe PVC nwere obere ihe dị arọ.

Njirimara 7: The shrinkage rate of PVC bụ nnọọ ala, n'ozuzu 0.2 ~ 0.6%.

Polyvinyl chloride, nke akpọchiri dị ka PVC (Polyvinyl chloride) na bekee, bụ vinyl chloride monomer (VCM) na peroxides, ogige azo na ndị nrụpụta ndị ọzọ;ma ọ bụ n'okpuru omume nke ọkụ na okpomọkụ dị ka free radical polymerization mmeghachi omume mmeghachi omume Polymers kpụrụ site polymerization.Vinyl chloride homopolymer na vinyl chloride copolymer ka a na-akpọkọta ọnụ dị ka resin vinyl chloride.

PVC bụ ntụ ntụ ọcha nke nwere usoro amorphous.Ogo nke branching bụ obere, ndị ikwu njupụta bụ banyere 1.4, iko mgbanwe okpomọkụ bụ 77 ~ 90 ℃, na ọ na-amalite decompose na banyere 170 ℃.Nkwụsi ike na ọkụ na okpomọkụ adịghị mma, karịa 100 ℃ ma ọ bụ mgbe ogologo oge gasịrị.Ikpughe anyanwụ ga-erepịakwa iji mepụta hydrogen chloride, nke ga-eme ka ire ere na-adabawanye n'ihu, na-eme ka agbapụta agba, na ihe anụ ahụ na arụ ọrụ ga-agbada ngwa ngwa.N'ime ngwa ndị bara uru, a ga-agbakwunye ndị na-eme ihe ike iji meziwanye nkwụsi ike na okpomọkụ na ọkụ.

Ọnụ ọgụgụ molekụla nke PVC ụlọ ọrụ na-emepụta na-adịkarị na 50,000 ruo 110,000, na nnukwu polydispersity, na ịdị arọ molecular na-abawanye na mbelata nke okpomọkụ polymerization;ọ dịghị edozi agbaze ebe, na-amalite nro na 80-85 ℃, na-aghọ viscoelastic na 130 ℃, 160 ~ 180 ℃ na-amalite ịgbanwe n'ime viscous mmiri ala;ọ nwere ezigbo ihe eji arụ ọrụ, ike ike dị ihe dị ka 60MPa, ike mmetụta bụ 5 ~ 10kJ / m2, ọ nwekwara ezigbo dielectric Njirimara.

PVC bụbu ihe a na-emepụta plastik maka izugbe n'ụwa, a na-ejikarị ya eme ihe.A na-eji ya eme ihe n'ọtụtụ ebe na ihe owuwu ụlọ, ngwaahịa ụlọ ọrụ, ihe ndị dị mkpa kwa ụbọchị, akpụkpọ anụ ala, taịlị ala, akpụkpọ anụ artificial, ọkpọkọ, wires na eriri, ihe nkiri nkwakọ ngwaahịa, karama, ihe ụfụfụ, ihe mkpuchi, eriri, wdg.

Ụlọ ọrụ anyị na-eji nke ọmaebuihe, dị ka 718, 718H, wdg, ezigbo ihe ebu, ogologo ndụ, na ngwaahịa eji dị iche iche plastic ihe nwere ike ịmepụta elu-edu plastic ngwaahịa.


Oge nzipu: Ọktoba 23-2021