Ihe ndị a bụ nyocha nke ojiji nke ihe nkwụnye methyl tin na nhazi PVC, dabere na njirimara arụmọrụ ha na omume ụlọ ọrụ:
1, Ọnọdụ ngwa na mgbanwe teknụzụ
1. Nhazi nke ngwaahịa siri ike doro anya
Ọ dabara adaba maka mpempe akwụkwọ PVC na-acha ọcha, bọọdụ, ihe nkiri ọkụ na-ebelata ọkụ na ngwaahịa ndị ọzọ, site na iji ezigbo ndakọrịta ya na resin PVC, nnyefe ọkụ nke ngwaahịa ahụ nwere ike iru ihe karịrị 90%, ọ nweghịkwa mmiri ozuzo ma ọ bụ ihe na-acha odo odo.
2. Usoro ndị a na-ahụkarị: ịkpụgharị akpụgharị, ịkpụpụta ihe na-esi na extrusion pụta
Usoro akwadoro: Ego mgbakwunye 1.2-1.6 phr (na-ewere ọkpụrụkpụ ihe nkiri 0.1-0.3mm dịka ọmụmaatụ)
3. Mmepụta paịpụ na profaịlụ
A na-eji ya arụ ihe owuwu dịka paịpụ mmiri na ọnụ ụzọ na windo plastik, ọ nwere ike igbochi oxidation na mmebi nke PVC n'oge nhazi site na nkwụsi ike okpomọkụ ogologo oge, ma gbasaa ndụ iguzogide ihu igwe nke ngwaahịa ahụ karịa 30%.
4. Ngalaba nkwakọ ngwaahịa nri/ọgwụ
Dịka iwu EU ROHS na US ASTM D3421 si dị, nke e ji mee ihe n'ime akpa nri, karama nkwakọ ngwaahịa ọgwụ, wdg., ihe dị arọ nke ngwaahịa a dị n'ime ígwè dị arọ dị n'okpuru 0.1 ppm.
2, Ntụnyere nke uru ngwa
| Akụkụ arụmọrụ | Ihe na-eme ka ihe nkwụnye methyl tin sie ike | Ihe na-eme ka nnu ndu dịgide n'ọdịnala |
| Ihe mbụ e ji agba agba | Mmiri doro anya | Ọ na-adị mfe ịcha odo |
| Arụmọrụ nkwụsi ike okpomọkụ | Ogologo oge (≥ 180 ℃ nkwụsi ike na-aga n'ihu) | Nnukwu ihe egwu nke ọdịda etiti oge |
| Nchekwa na enyi gburugburu ebe obibi | Ogologo oge (≥ 180 ℃ nkwụsi ike na-aga n'ihu | Ihe ndị na-emetọ Lead/cadmium |
| Nhazi | Dakọtara na usoro dum nke PVC siri ike/dị nro | Naanị maka ngwaahịa siri ike |
Rịba ama: A na-enweta data a site na ntụnyere nke nha ndị ụlọ ọrụ nhazi PVC mere ma n'ime obodo ma n'ụwa niile.
3, Usoro nhazi maka mgbanwe usoro
1. Nhazi sistemụ mejupụtara
A na-ejikarị ya na mmanụ soybean epoxidized (3-5 phr) na calcium stearate (0.5-1 phr) iji mee ka mmiri gbazee nke ọma ma belata uru ike.
2. Njikwa okpomọkụ n'oge nhazi
A na-atụ aro ka ịtọ okpomọkụ extrusion ahụ na ngalaba (160-185 ℃) iji zere mmebi nke otu thiol kpatara site na ịgafe 210 ℃.
3. Ọgwụgwọ mmiri na-egosi
Mgbe a na-echekwa ya, a ga-edebe iru mmiri gburugburu ebe obibi n'okpuru 60%. Tupu a na-edozi ya, a ga-akpọnwụ ihe ndị e ji PVC rụọ n'okpomọkụ 80 ℃ ruo awa abụọ iji gbochie nsogbu hydrolysis.
(Rịba ama: Ngwaahịa a bụ mmiri mmiri na-enweghị agba, ọ dịkwa mkpa ka e debe ya n'ụzọ mechiri emechi, ebe ìhè na-anaghị apụta.)
Oge ozi: Mee-19-2025
