A na-eji ngwakọta PVC eme ihe dabere na njikọta nke PVC polymer RESIN na ihe mgbakwunye ndị na-enye usoro dị mkpa maka ojiji ikpeazụ (Ọkpọkọ ma ọ bụ Profaịlụ siri ike ma ọ bụ Profaịlụ na-agbanwe agbanwe ma ọ bụ mpempe akwụkwọ). A na-emepụta ngwakọta ahụ site na ịgwakọta ihe ndị mejupụtara ya nke ọma, nke a na-agbanwe ka ọ bụrụ ihe "gelled" n'okpuru mmetụta nke okpomọkụ na ike shear. Dabere na ụdị PVC na ihe mgbakwunye, ngwakọta ahụ tupu gelation nwere ike ịbụ ntụ ntụ na-agba ọsọ (nke a maara dị ka ngwakọta akọrọ) ma ọ bụ mmiri mmiri n'ụdị mado ma ọ bụ ngwọta.
Mgbe e ji plastik mee ihe, a na-eji ihe ndị na-agbanwe agbanwe emepụta ihe ndị a na-akpọ PVC-P.
A na-akpọ PVC-U ihe ndị e ji PVC mee ihe mgbe e jighị plastik mee ha maka ojiji siri ike.
Nchikota PVC nwere ike iputa dika ndi a:
A ga-agwakọta ntụ ntụ ngwakọta akọrọ PVC siri ike (nke a na-akpọ Resin), nke nwekwara ihe ndị ọzọ dị ka ihe na-eme ka ihe sie ike, ihe mgbakwunye, ihe na-eme ka ihe sie ike, na ihe na-egbochi ire ọkụ nke ọma n'ime igwe na-eme ka ihe dị n'ime ya. Ngwakọta mgbasa na nkesa dị oke mkpa, ihe niile dabere na oke okpomọkụ akọwapụtara nke ọma.
Dịka usoro a si dị, a na-etinye resin PVC, plastikizer, ihe njupụta, ihe na-eme ka ihe sie ike na ihe ndị ọzọ na-enyere aka n'ime ngwakọta ọkụ. Mgbe nkeji isii ruo iri gachara, wụsa ya n'ime igwekota oyi (nkeji isii ruo iri) maka ngwakọta mbụ. Ngwakọta PVC ga-eji igwekota oyi gbochie ihe ndị ahụ ịrapara ọnụ mgbe igwekota ọkụ gasịrị.
Mgbe e mechara mee ka ngwakọta ahụ dị nro, gwakọta ya ma gbasaa ya nke ọma na ihe dị ka 155°C-165°C, a na-etinye ya na ngwakọta oyi. A na-eme ka ngwakọta PVC ahụ gbazee gbazee. Mgbe e mechara mee ka ọ gbazee, a pụrụ ibelata okpomọkụ granules ahụ ruo 35°C-40°C. Mgbe e mechara, mgbe e mechara ka ọ dị jụụ site na ifufe, okpomọkụ mkpụrụ ahụ na-agbada n'okpuru okpomọkụ ụlọ ka e wee ziga ya na silo ngwaahịa ikpeazụ maka nkwakọ ngwaahịa.
Oge ozi: Nọvemba-11-2022