Muaj ntau hom tshuaj ntxiv rau PVC (polyvinyl chloride), uas tuaj yeem muab faib ua pawg hauv qab no raws li lawv cov haujlwm, nrog rau cov khoom xyaw tshwj xeeb thiab kev siv txuas nrog:
1. Lub tshuab ua kom sov sov
Kev Ua Haujlwm: Txhawm rau tiv thaiv kev tso tawm ntawm HCl vim yog thermal decomposition thaum lub sijhawm ua PVC lossis siv.
Cov hom uas feem ntau pom:
Cov ntsev txhuas (xws li trisodium lead sulfate): Tus nqi qis tab sis muaj tshuaj lom ntau, maj mam tshem tawm.
Calcium zinc stabilizer: tus phooj ywg ib puag ncig, siv rau kev ntim khoom noj thiab cov khoom siv kho mob.
Cov tshuaj tin organic (xws li dibutyltin) muaj pob tshab zoo thiab tsim nyog rau cov khoom kho mob.
Lub ntiaj teb tsis tshua muaj stabilizer: ib qho kev xaiv tshiab uas zoo rau ib puag ncig.
2. Cov khoom siv yas
Kev Ua Haujlwm: Ua kom yooj ywm dua thiab txo qhov kub hloov iav.
Cov hom uas feem ntau pom:
Phthalates (xws li DOP, DBP): Muaj nyob thoob plaws, qee qhov muaj tshuaj lom tsawg (xws li DEHP).
Cov kev xaiv uas tsis ua rau ib puag ncig puas tsuaj: Citrate esters (ATBC), roj taum pauv epoxidized (ESO), polyester plasticizers.
3. Cov roj nplua nyeem
Kev Ua Haujlwm: Txo kev sib txhuam ntawm kev ua haujlwm thiab txhim kho kev ua haujlwm.
Pawg:
Cov roj nplua nyeem sab hauv (xws li stearic acid): txo cov kev sib txhuam ntawm PVC.
Cov roj nplua nyeem sab nraud (xws li paraffin): txo qhov kev sib txhuam ntawm PVC thiab cov khoom siv.
4. Kev hloov pauv cuam tshuam
Kev Ua Haujlwm: Txhim kho qhov cuam tshuam tsis kam.
Cov hom uas feem ntau pom:
CPE (Chlorinated Polyethylene): Tus nqi tsim nyog.
MBS (methyl methacrylate butadiene styrene copolymer): tsim nyog rau cov khoom pob tshab.
ACR (acrylic ester): Kev ua tau zoo heev.
5. Cov khoom siv ua haujlwm
Kev Ua Haujlwm: Txhim kho lub zog yaj thiab kev ntws.
Cov hom siv ntau: ACR (xws li Paraloid series), EVA (ethylene vinyl acetate copolymer).
6. Cov tshuaj tiv thaiv hluav taws
Kev Ua Haujlwm: Tiv thaiv kev kub hnyiab, siv rau hauv cov ntaub ntawv tsim kho, cov xov hlau thiab cov cables.
Hom:
Cov ntaub ntawv inorganic: txhuas hydroxide, magnesium hydroxide (phooj ywg ib puag ncig tab sis muaj ntau yam khoom ntxiv).
Cov tshuaj sib xyaw ua ke: Cov tshuaj sib xyaw ua ke Bromine (xws li decabromodiphenyl ether, qee qhov txwv), cov tshuaj sib xyaw ua ke phosphorus (xws li phosphate esters).
7. Lub teeb stabilizer
Kev Ua Haujlwm: Tiv thaiv UV laus, siv rau cov khoom sab nraum zoov.
Cov hom uas feem ntau pom:
Cov tshuaj nqus UV (xws li benzotriazoles).
Hindered amine lub teeb stabilizer (HALS).
8. Cov khoom siv sau
Kev Ua Haujlwm: Txo cov nqi thiab tswj kev ua tau zoo.
Piv txwv li: Calcium carbonate (calcium me me/calcium hnyav), hmoov talc, thiab wollastonite.
9. Cov xim pleev
Hom:
Cov xim organic: xim ci ntsa iab.
Cov xim inorganic: tiv taus huab cua zoo.
Bontecn Group Tuam Tshoj tshwj xeeb hauv kev tsim cov khoom ntxiv PVC, Tam sim no, lub tuam txhab muaj 5 tus neeg ua haujlwm R & D laus, ntau dua 20 tus neeg ua haujlwm R & D nruab nrab, thiab ntau dua 20 pab pawg sib koom tes. Tam sim no lub tuam txhab thiab cov tuam txhab lag luam txawv teb chaws tau koom tes tsim cov khoom tshiab, cov khoom tuaj yeem daws cov teeb meem ntawm cov khoom xyaw yas ib txwm muaj thiab cov teeb meem kim heev, thiab tau ua tiav cov txiaj ntsig zoo. Nrog rau cov txheej txheem thev naus laus zis siab heev thiab cov txhais tau tias nrhiav tau zoo meej, peb txuas ntxiv tshawb nrhiav, tsom mus rau kev tshawb fawb thiab kev txhim kho, thiab koom tes nrog cov koom haum tshawb fawb txhua xyoo puag ncig kom txuas ntxiv tsim cov khoom tshiab thiab cov txheej txheem tshiab.
Lub sijhawm tshaj tawm: Lub Kaum Hli-13-2025
