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Hom PMI Ua Npuas Ncauj

Views:5 Author: Linda Tshaj Tawm Sijhawm: 2023-07-25 keeb kwm:

Piv nrog cov yas ntshiab, PMI ua npuas ncauj muaj qhov ntom ntom, lub teeb yuag thiab lub zog tshwj xeeb. Nws lub zog nce ntxiv nrog qhov ntom ntom, muaj peev xwm nqus tau qhov cuam tshuam, thiab muaj cov cushioning zoo heev thiab kev poob siab zoo, suab rwb thaiv tsev thiab suab nqus kev ua haujlwm, thiab thermal conductivity. Zoo thermal rwb thaiv tsev kev ua tau zoo, zoo hluav taws xob rwb thaiv tsev kev ua tau zoo, corrosion kuj, pwm kuj. Mos ua npuas ncauj muaj cov khoom zoo xws li elasticity.

PMI ua npuas ncauj muaj nyob rau hauv peb hom: nruj, hloov tau, thiab semi-rigid (semi-soft).

1. Ua npuas ncauj yog ib qho crystalline lossis amorphous daim ntawv ua npuas ncauj ntawm qhov kub thiab txias, thiab nws cov iav hloov pauv kub siab dua li qhov kub ib txwm. Yog li ntawd, qhov kev ntxhib los mos ntawm cov npuas dej yog ib qho nyuaj ntawm qhov kub thiab txias.

2. Mos ua npuas ncauj  uas yog, lub melting point ntawm lub polymer constituting lub npuas dej yog qis tshaj li ib txwm kub los yog lub iav hloov kub ntawm amorphous polymer yog qis dua li ib txwm kub, thiab cov khoom yog mos ntawm chav tsev kub.

3. Semi-rigid (lossis semi-mos) ua npuas ncauj yog ua npuas ncauj ntawm ob hom saum toj no.

Ua npuas ncauj kuj tuaj yeem muab faib ua npuas dej tsawg thiab ua npuas ncauj siab. Feem ntau, qhov nthuav dav piv (qhov ntau ntawm qhov ntim nce tom qab nthuav dav piv nrog rau qhov ua ntej foaming) yog hu ua npuas npuas yog tsawg dua 5, thiab nws yog hu ua npuas npuas yog ntau dua 5.

Muaj ntau micropores hauv PMI. Lub teeb yuag, rwb thaiv tsev kub, suab nqus, shockproof, corrosion kuj. Muaj cov ntsiab lus mos thiab tawv. Dav siv los ua rwb thaiv tsev, suab rwb thaiv tsev, ntim cov ntaub ntawv thiab lub tsheb casings.


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