PVC (Polyvinyl Chloride) ua npuas ncauj boards, cov kav dej ua npuas dej, thiab lwm yam kev siv ua npuas ncauj tau dhau los ua ib qho tseem ceeb hauv ntau qhov kev lag luam, los ntawm kev tsim kho mus rau tsheb. Cov ntaub ntawv ntau yam no tshuav lawv lub teeb yuag thiab insulating zog rau kev koom ua ke ntawm foaming agents. Nyob rau hauv tsab xov xwm no, peb delve rau hauv lub ntiaj teb no ntawm PVC foaming agents, nrog rau kev tsom mus rau AC (Azodicarbonamide) thiab NC (Sodium Bicarbonate) tshuab tshuab, tshawb xyuas lawv cov khoom, kev siv, thiab kos duab ntawm kev ua tiav qhov sib npaug.
PVC foaming agents yog cov tshuaj additives uas ua lub luag haujlwm tseem ceeb hauv kev tsim cov ntaub ntawv foamed PVC. Ob hom tshuaj foaming siv hauv kev lag luam yog AC tshuab tshuab thiab NC tshuab tshuab. Cia peb saib ze dua ntawm lawv cov yam ntxwv:
- AC Blowing Agent:
- Decomposition kub: AC foaming agents, feem ntau hu ua daj foaming agents, muaj ib tug decomposition kub li ntawm kwv yees li 180 degree mus rau 210 degree.
- Kev sib tham nrog Lead Salt: Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov decomposition kub ntawm AC foaming agents tuaj yeem txo qis linearly thaum lawv nkag mus rau hauv cov ntsev ntsev.
2.NC tshuab tshuab:
- Decomposition kub: NC foaming agents, tseem hu ua alkali los yog dej qab zib, muaj cov roj tso tawm qis thiab decomposition kub piv rau cov neeg ua npuas daj daj. Lawv cov roj tso tawm yog nyob ib ncig ntawm 110, thiab qhov decomposition kub feem ntau yog li ntawm 130 degree txog 150 degree.
- Cov plaub hau dawb Foaming Agent: NC foaming agents feem ntau yog tsim los ua cov plaub hau dawb foaming agents raws li dej qab zib tshauv.
3.Balancing Act hauv Foam Production
Tsim cov ntaub ntawv zoo foamed PVC yuav tsum muaj qhov sib npaug ntawm AC thiab NC foaming agents. Kev siv tsuas yog ib hom foaming tus neeg sawv cev tuaj yeem ua rau muaj teeb meem:
Tsuas yog siv AC Foaming Agent: Tsuas yog tso siab rau AC foaming agents tuaj yeem ua rau phab ntsa tawg thiab ua npuas thaum tsim cov npuas npuas tuab.
Tsuas yog siv NC Foaming Agent: Ntawm qhov tod tes, cia siab ib leeg ntawm NC-agents tus neeg sawv cev yuav ua rau cov laug cam qis vim lawv qhov kev daws teeb meem qis, ua rau muaj kev ua tiav roj tso tawm thaum lub sijhawm moulding txheej txheem.
Ua kom tiav qhov xav tau ua npuas ncauj ntom ntom yuav tsum muaj qhov sib npaug ntawm AC thiab NC foaming agents. Txawm li cas los xij, ntau tus neeg sawv cev ua npuas dej ntau dhau tuaj yeem ua rau cov roj tsim ntxov ntxov hauv extruder, cuam tshuam cov khoom ntws. Kev tsim cov npuas npuas yuav tsum tau nrawm nrawm kom ncav cuag lub qhov ncauj tuag thiab tso tawm ib txhij ntawm cov pa roj txaus los tsim cov qauv ua npuas ncauj uas xav tau. Yog li ntawd, ob qho tib si tsis txaus thiab ntau dhau ntawm cov neeg ua npuas dej tuaj yeem cuam tshuam qhov kev ua tiav ntawm qhov xav tau ua npuas ncauj ntom ntom.
Xaus
PVC foaming agents, tshwj xeeb tshaj yog AC thiab NC tshuab tshuab, yog cov khoom tseem ceeb hauv kev tsim cov ntaub ntawv PVC ua npuas ncauj. Lawv cov khoom tshwj xeeb tso cai rau kev tsim lub teeb yuag, insulating, thiab ntau yam khoom siv hauv ntau yam lag luam.
Kev sib npaug ntawm kev siv AC thiab NC foaming agents yog ib qho kev kos duab uas cov tuam txhab ua npuas ncauj yuav tsum tau tsim cov ntaub ntawv zoo foamed PVC tsis tu ncua. Kev nkag siab txog kev sib cuam tshuam ntawm cov neeg ua npuas dej thiab cov khoom siv yog qhov tseem ceeb rau kev ua tiav qhov xav tau ua npuas ncauj ntom ntom, uas, dhau los, ua kom pom kev ua haujlwm zoo ntawm PVC ua npuas ncauj khoom.
Nyob rau hauv cov ntsiab lus, PVC foaming agents yog catalysts ntawm innovation, enabling lub creation ntawm advanced cov ntaub ntawv uas pab mus rau kev vam meej ntawm ntau industries. Kev ua tiav qhov sib npaug ntawm cov neeg ua haujlwm no yog qhov tseem ceeb rau kev qhib lub peev xwm ntawm PVC ua npuas ncauj daim ntawv thov. Yog xav paub ntxiv txog cov ntaub ntawv xov xwm, suav nrog TDS (Technical Data Sheets) thiab MSDS (Material Safety Data Sheets), thov hu rau peb Lub Chaw Muag Khoom thiab Kev Lag Luam lossis tiv tauj peb hauv peb lub vev xaib nplooj ntawv tiv tauj. Peb nyob ntawm no los pab koj hauv kev txhim kho koj cov txheej txheem ua npuas dej thiab ua tiav cov txiaj ntsig zoo.
