Dab tsi yog pvc laj kab ua los ntawm?

Ib lub laj thawj pvc feem ntau ua los ntawm cov hluavtaws yas polymer hu li pvc, uas yog hom vinyl. Cov khoom xyaw tseem ceeb hauv kev tsim cov PVC fencing yog:

Polyvinyl chloride (PVC): Qhov no yog cov khoom siv hauv paus, ib qho khoom siv yas ntau los ntawm roj av. Nws yog tsim los ntawm polymerizing yas vinyl chloride monomers (VCM), uas yog tsim los ntawm cov roj nkev lossis roj derivatives.

Stabilizers: Txhawm rau tiv thaiv tus pvc los ntawm degrading thaum raug rau UV hluav taws xob thiab cua sov, stabilizers tau ntxiv. Cov no feem ntau yog raws li cov ntaub ntawv xws li txhuas lossis calcium-zinc, uas pab tswj hwm kev ncaj ncees ntawm lub laj kab dhau lub sijhawm.

Yas tshuab: Qee cov laj kab ntxiv yuav muaj cov tshuab roj hmab, txawm tias muaj ntau yam tsis muaj. Cov tshuab yas ua rau cov khoom siv ntau dua, txawm hais tias yog feem ntawm feem ntau cov laj kab feem ntau, cov khoom siv yog tsim kom nruj thiab ruaj khov.

Kev Cuam Tshuam Hloov: Cov no tau ntxiv rau txhim kho cov tawv ntawm PVC thiab txhawm rau tiv thaiv kev tawg lossis tawg thaum lub laj kab yog qhov cuam tshuam.

Uv Inhibitors: Txhawm rau tiv thaiv lub laj kab ntawm lub hnub ultraviolet rays, uas tuaj yeem ua rau cov khoom siv los ua tus neeg tawg lossis ploj mus dhau lub sijhawm, UV inibitors suav nrog. Cov tshuaj ntxiv no pab khaws cov xim thiab cov kav ntev ntawm pvc.

Dej pigments: Rau lub hom phiaj ua kom zoo nkauj, cov xim tau ntxiv los muab cov kev xaiv xim rau lub laj kab. Cov xim uas suav nrog dawb, ziab, thiab grey, txawm hais tias kev cai cov xim tuaj yeem ua tau.

Lwm cov tub lim: Hauv qee kis, fillers nyiam calcium carbonate lossis lwm yam minerals ntxiv kom txhim kho cov khoom siv lub zog thiab txo tus nqi.

Cov txheej txheem ntawm kev ua rau PVC laj kab feem ntau cuam tshuam nrog kev sib xyaw ua ke thiab yuam los ntawm cov pwm laj kab, cov posts, thiab lwm yam. Cov ntu no yog ces txias thiab sib sau ua ke rau cov khoom tiav.

PVC laj kab yog nrov rau lawv cov durability, kev txij nkawm qis, thiab tiv thaiv huab cua piv rau cov ntoo tsoos lossis cov laj kab hlau.