Cov tshuaj tswj ua npuas dej PVC yog cov tshuaj polymer uas siv los txhim kho kev ua haujlwm ntawm cov khoom ua npuas dej PVC. Nws lub luag haujlwm tseem ceeb yog ua kom lub zog yaj, txhawb kev sib npaug ntawm cov hlwb ua npuas dej, tiv thaiv kev tawg ntawm cov hlwb, thiab ua kom zoo dua kev ua haujlwm. Cov hauv qab no yog kev qhia txog cov tshuaj tswj ua npuas dej PVC:
1. Lub luag haujlwm ntawm PVC foaming regulator
Txhim kho lub zog yaj: tiv thaiv cov npuas kom tsis txhob tawg lossis sib koom ua ke thaum lub sijhawm ua npuas dej, thiab ua kom cov qauv ntawm lub cell zoo ib yam.
Cov qauv cell ruaj khov: txo cov cell vau, txhim kho lub zog kho tshuab thiab qhov zoo ntawm cov khoom.
Txhim kho kev ua haujlwm: Txhim kho cov khoom rheological ntawm PVC yaj kom nws tsim nyog rau extrusion, dov, lossis txhaj tshuaj molding foaming txheej txheem.
Kho qhov ceev ntawm cov ua npuas ncauj: tswj qhov loj thiab kev faib tawm ntawm cov qhov ua npuas ncauj kom ua tiav qhov sib dua ntawm cov khoom.
2. Kev faib tawm ntawm cov khoom siv ua npuas dej PVC
(1) Faib raws li cov tshuaj lom neeg sib xyaw
Acrylic esters (ACR hom): feem ntau, xws li methyl methacrylate (MMA) - butyl acrylate (BA) copolymers, muaj cov teebmeem zoo heev rau kev yaj.
Styrene acrylonitrile (Hom SAN): Nws muaj kev tiv taus cua sov zoo thiab tsim nyog rau cov txheej txheem ua npuas dej kub.
MBS (methyl methacrylate butadiene styrene): Nws muaj ob qho tib si toughening thiab foaming regulation functions.
(2) Faib raws li daim ntawv lub cev
Hom tshuaj pleev: siv ncaj qha rau PVC paste resin foaming (xws li tawv dag, ntawv phab ntsa).
Hom hmoov: siv rau kev ua npuas dej PVC tawv (xws li cov laug cam ua npuas dej laminated, profiles).
3. Cov teb thov ntawm PVC foaming regulator
| thaj chaw thov | cov khoom lag luam ib txwm muaj | Cov kev cai tswjfwm |
| Kev kho kom zoo nkauj ntawm vaj tse | PVC ua npuas ncauj board, skirting board, imitation ntoo profile | Lub zog yaj siab, qhov loj me ntawm cov qhov sib xws, thiab tiv taus huab cua zoo |
| Sab Hauv Tsheb | Vaj huam sib luag, vaj huam sib luag qhov rooj, qab nthab | Tsis tshua muaj ntxhiab, tsis kam kub thiab tsis kam laus |
| cov ntaub ntawv ntim khoom | Cov thawv ntim khoom noj, cov tais zaub mov | Tsis muaj tshuaj lom thiab ua raws li cov qauv FDA |
| Cov ntaub ntawv khau thiab tawv hluavtaws | EVA/PVC ua npuas ncauj hauv qab, tawv hluavtaws | Zoo softness thiab siab resilience |
4. Cov yam ntxwv xaiv ntawm PVC foaming regulator
Cov txheej txheem ua npuas ncauj (ua npuas dawb, ua npuas ntawm daim tawv nqaij, ua npuas tshuaj lom neeg, ua npuas lub cev)
Kev siv tshuab ua (extrusion, txhaj tshuaj molding, dov)
PVC mis (PVC tawv, PVC mos, lub kaw lus sau)
Hom tshuaj ua npuas ncauj (AC foaming agent OBSH),Sodium bicarbonate, thiab lwm yam
5. Cov hom lag luam tseem ceeb hauv kev ua lag luam*
-Cov hom lag luam txawv teb chaws:
-Paraloin Chemistry™K-400)
-Akoma (Durastrength) ®)
-Mitsubishi Liyang (Metablen) ®)
-Cov hom lag luam hauv tebchaws:
-Nippon Chemical (ACR series)
-Ruifeng Cov Khoom Siv Siab (RF Series)
-Bontecn Group (KF series)
Lub sijhawm tshaj tawm: Plaub Hlis-10-2025
