Corrosion-Resistant Lightweight Building Materials: Qhov zoo ntawm cov tub ntxhais thiab kev siv ntawm PVC daim phiaj vaj huam sib luag

PVC daim phiaj vaj huam sib luag yog daim phiaj- cov ntawv zoo li ua los ntawm polyvinyl chloride resin los ntawm cov txheej txheem xws li extrusion thiab molding. Raws li hom tshiab ntawm cov khoom siv hauv tsev ua lwm txoj hauv kev sib txuas hlau, lawv muaj peb qhov zoo: lub teeb yuag, siab zog, corrosion kuj, thiab plam tsis kam. Piv nrog rau cov phiaj hlau ib txwm muaj, PVC daim phiaj vaj huam sib luag muaj qhov ntom ntawm tsuas yog 1/5 ntawm cov hlau, thiab tuaj yeem txav tau yooj yim thiab nruab los ntawm ib tus neeg tsis tas yuav siv cov cuab yeej hnyav, txo cov nqi tsim kho thiab sijhawm. Lawv cov qauv molecular yog ruaj khov, ib txwm tiv taus acids thiab alkalis, thiab corrosion. Nyob rau hauv qhov chaw ntub dej thiab corrosive xws li kev cob qhia tshuaj, cov dej phwj tuaj kho cov pas dej, thiab cov chaw nres tsheb ntawm ntug dej hiav txwv, lawv yuav tsis xeb lossis muaj hnub nyoog 20 xyoo, daws cov teeb meem ntawm daim phiaj hlau hlau. Qhov saum npoo nta cov qauv tsis yog -slip zoo nkauj, thiab txawm tias tom qab ntub dej, qhov sib txhuam coefficient tseem nce mus txog qib R10-R11, kom tsis txhob muaj kev pheej hmoo ntawm kev ntog thiab tsim nyog rau cov pas dej da dej, chav da dej, kev taug kev, thiab lwm yam.
Tsis tas li ntawd, PVC daim phiaj vaj huam sib luag muaj cov khoom siv rwb thaiv tsev zoo heev thiab tuaj yeem siv nyob ib puag ncig cov chaw siv hluav taws xob; qhov qhib - cov qauv kab sib chaws muaj cov kua dej siab thiab qhov cua ua haujlwm zoo, tsis yooj yim rau cov plua plav thiab dej, thiab tsuas yog yuav tsum tau yaug yooj yim nrog dej huv rau kev saib xyuas txhua hnub, tsis tas yuav muaj kev tiv thaiv xeb. Tus nqi siv sijhawm ntev - nqi qis dua. Tam sim no, lawv tau siv dav hauv thaj chaw xws li tshuaj lom neeg, kev tiv thaiv ib puag ncig, hauv nroog, thiab kho kom zoo nkauj hauv tsev, dhau los ua cov khoom siv hauv tsev nyiam rau cov av noo, corrosive, thiab plam-cov xwm txheej tiv taus.