ibe_isi_gb

ngwa

Resin PVC bụ akụkụ kachasị ukwuu nke eriri PVC, yana ịdị mma nke ya nwere mmetụta dị ukwuu na akụrụngwa na eletriki nke ihe igwe.

1 Usoro ihe eji eme ihe nke PVC

N'ozuzu, a na-ahụ ma electron conduction na ion conduction na polymers, ma ogo dị iche.Nnukwu ihe dị iche n'etiti usoro abụọ a na-eduzi bụ ọdịiche dị na ndị na-ebu ụgwọ.Na polymers, ihe na-ebu mmiri nke usoro ihe nlegharị anya eletrọn bụ eletrọn efu nke π bond eletrọn na-emegharị.Onye na-ebu mmiri nke usoro nhazi ion na-adịkarị mma na ion na-adịghị mma.Ọtụtụ n'ime ndị polymers dabeere na eletrọnịkị conductivity bụ conjugated polymers, na PVC isi yinye bụ tumadi otu njikọ njikọ, enweghị a conjugated usoro, ya mere ọ bụ tumadi na-eduzi ọkụ eletrik site ion conduction.Agbanyeghị, na ọnụnọ nke ugbu a na ọkụ UV, PVC ga-ewepụ HCl wee mepụta iberibe polyolefin unsaturated, yabụ enwere elektrọn π-bonded, nke nwere ike ibugharị ọkụ eletrik

2.2.1 molekụla arọ

Mmetụta nke ịdị arọ molekul na conductivity nke polymers metụtara isi ihe na-eduzi polymers.Maka omume elektrọn, ihe omume ahụ ga-abawanye n'ihi na ịdị arọ molekụla na-abawanye na ọwa intramolecular nke eletrọn na-adịte aka.Site na mbelata nke ịdị arọ molekụla, ọpụpụ ion na-abawanye na conductivity na-abawanye.N'otu oge ahụ, ịdị arọ molekụla na-emetụtakwa ihe eji arụ ọrụ nke ngwaahịa USB.Ihe dị elu nke ịdị arọ molekụla nke resin PVC, ka mma nguzogide oyi ya, nkwụsi ike okpomọkụ na ike ọrụ.

2.2.2 Thermal kwụsie ike

Nkwụsi ike nke thermal bụ otu n'ime ndeksi kachasị mkpa na nke dị mkpa iji nyochaa ogo resin.Ọ na-emetụta kpọmkwem teknụzụ nhazi nke ngwaahịa ala na njirimara nke ngwaahịa.Site n'iji ihe eji ewu ụlọ PVC eme ihe n'ọtụtụ ebe, ọchịchọ maka nkwụsi ike nke resin PVC na-abawanye na elu.Na-acha ọcha ịka nká bụ ihe dị mkpa index iji nyochaa nkwụsi ike nke resin, ka ikpe ikpe nkwụsi ike nke resin.

2.2.3 ion ọdịnaya

N'ozuzu, PVC na-eduzi ọkụ eletrik tumadi site na ion conduction, ya mere ions nwere mmetụta dị ukwuu na nhazi ahụ.The metal cations (Na +, K+, Ca2+, Al3+, Zn2+, Mg2+, wdg) na polymer na-arụ ọrụ na-edu ndú, mgbe anions (Cl-, SO42-, wdg) nwere obere mmetụta na eletriki conductivity n'ihi na ha. nnukwu radius na ngwa ngwa mbugharị ọnụego.N'ụzọ dị iche, mgbe PVC nwere ike ịkpata mmetụta dị n'akụkụ nke dechlorination n'okpuru ọkụ eletrik na UV radieshon, a na-ahapụ Cl, nke ikpe anion na-arụ ọrụ kachasị.

2.2.4 Njupụta pụtara ìhè

Ngosipụta pụtara ìhè na ntinye mmanụ nke resin na-emetụta njirimara nhazi nke resin, karịsịa plasticization nke resin, na plasticization na-emetụta kpọmkwem ihe onwunwe nke ngwaahịa.N'okpuru otu nhazi na nhazi ọnọdụ, resin nwere nnukwu njupụta doro anya na obere porosity dị ala, nke nwere ike imetụta nnyefe nke ihe ndị na-eduzi na resin, na-ebute nnukwu ihe mgbochi nke ngwaahịa ahụ.

2.2.5 ndị ​​ọzọ

PVC resin na "fisheye", ion adịghị ọcha na ihe ndị ọzọ dị na usoro mmepụta eriri na-aghọ ihe na-adịghị mma, nke mere na eriri USB adịghị mma, na-emetụta ọdịdị nke ngwaahịa, na "knobs" gburugburu nhazi nke eletrik. oghere, mebie ihe PVC ihe eji eme ihe mkpuchi ihe.

N'okpuru otu ọnọdụ post-processing, njupụta pụtara ìhè, plasticizer absorption na ndị ọzọ na-egosi arụmọrụ na-emetụta kpọmkwem mmetụta post-processing, na ọkwa dị iche iche nke plasticization na-eduga na ọdịiche nke arụmọrụ ngwaahịa.

Na mgbakwunye, ọmụmụ egosila na enwere ike iwebata ihe mgbakwunye nwere otu ndị na-arụ ọrụ mgbe polyvinyl chloride polymerization, dịka ọmụmaatụ, na njedebe nke njikọ ma ọ bụ tupu ihicha ikpeazụ.Poly nwere 1 ~ 30% mmiri na ngụkọta nke 0.0002 ~ 0.001% polycarboxylic acid, nwere ike melite olu resistivity nke ngwaahịa.Okwu Mmalite nke 0.1-2% phosphate ion nwere COMPOUNDS (alkyl hydrogen phosphate, ammonium oxyphosphate, C≤20 alkyl phosphate, organic phosphate) na nkwusioru polyvinyl chloride, na mgbakwunye na nke ala alkaline metal ogige nwere 0.1-2%, ka tinye ha na polymer, nwere ike imeziwanye nguzogide olu na dielectric mgbe niile nke resin.


Oge nzipu: Sep-09-2022