PVC ua npuas ncauj board yog ib qho khoom siv hnyav nrog cov khoom zoo thiab cov khoom siv insulating. Ib qho kev sib xyaw ntawm polyvinyl chloride thiab polyurea, foamed PVC muaj lub zog zoo thiab muaj zog zoo vim nws cov kab, kaw-cell ua npuas ncauj qauv.
Qhov no feem ntau yog lub teeb heev (ib nrab ntawm qhov hnyav ntawm cov khoom PVC) cov khoom siv tiv taus cov dej noo thiab qee cov tshuaj, thiab nws yooj yim heev los txiav thiab zoo li. Nws kuj tseem yog cov thermoplastic thiab pib mos ntawm 65c (149f). , kaw ntawm tes PVC ua npuas ncauj board tuaj yeem txiav tau yooj yim li ntoo, tsau rau hauv dej kub npau npau los yog muag kom zoo siv rab phom cua sov, thiab pleev xim rau cov xim automotive.
kev tsim khoom
PVC ua npuas ncauj muaj nyob rau hauv ntau qhov ntom ntom, los ntawm 3pcf mus rau 25 pcf (45kg / m3 txog 400kg / m3). Cov khoom nyoos yog sib xyaw ua ke nyob rau hauv kev tswj xyuas thiab xa mus rau hauv pwm. Tom qab ntawd cov pwm puv yog kaw, clamped thiab muab tso rau hauv ib lub xovxwm loj thiab rhuab. Tom qab ua tiav cov txheej txheem, ib qho khoom ntawm cov khoom tawm los ntawm pwm. Cov khoom siv ces nthuav dav hauv da dej kub kom ncav cuag nws qhov kawg ntom ntom thiab kho. Cov block kho tau raug txiav rau hauv cov ntawv sib txawv raws li cov neeg siv khoom xav tau. Cov txheej txheem thiab kev tsim ua ke ua ke los muab cov khoom kaw kaw thiab lub cev zoo heev rau cov npuas dej.
Feem ntau siv
Txij li thaum foamed PVC muaj cov tshuaj tiv thaiv zoo thiab nqus dej tsawg, nws tsim nyog siv rau sab hauv tsev thiab sab nraum zoov. Nws muaj qhov cuam tshuam tsis zoo rau lub zog thiab feem ntau siv hauv cov paib thiab cov lus qhia vim nws cov xim dav. PVC ua npuas ncauj ntawv yog ib qho yooj yim rau kev tsim thiab kev sib raug zoo, thiab zoo-resistant rau kev puas tsuaj los ntawm nag, cua thiab hnub ci. Vim yog cov yam ntxwv no, cov khoom siv no zoo tagnrho rau kev siv txhua hnub.
