Polyvinyl Chloride (PVC) Txhaj Moulding txheej txheem

Tej kev siv:Cov kav dej hauv tsev, cov yeeb nkab hauv tsev, vaj huam sib luag hauv tsev, lub tshuab ua lag luam, cov khoom ntim khoom siv hluav taws xob, cov khoom siv kho mob, ntim khoom noj, thiab lwm yam.

 

Chemical thiab Physical Properties:

• Cov khoom siv PVC yog cov khoom siv amorphous.
• PVC cov ntaub ntawv feem ntau tau ntxiv rau kev siv tiag tiag ntawm stabilizers, lubricants, auxiliary processing agents, xim, cuam tshuam cov neeg ua hauj lwm thiab lwm yam additives.
• Tsis-flammable, siab zog, huab cua tsis kam thiab zoo heev geometric stability.
• PVC muaj zog tiv thaiv oxidants, txo cov neeg ua haujlwm thiab muaj zog acids. Txawm li cas los xij, nws tuaj yeem corroded los ntawm concentrated oxidizing acids xws li concentrated sulfuric acid, concentrated nitric acid thiab tsis haum rau kev sib cuag nrog aromatic hydrocarbons thiab chlorinated hydrocarbons.
• Lub melting kub ntawm PVC yog ib qho tseem ceeb heev txheej txheem parameter thaum lub sij hawm ua, thiab yog hais tias qhov no parameter yog tsis tsim nyog, nws yuav ua rau muaj teeb meem ntawm cov khoom decomposition.
• Cov yam ntxwv ntws ntawm PVC yog qhov tsis zoo, thiab nws cov txheej txheem yog nqaim heev.

Tshwj xeeb, cov khoom hnyav molecular PVC cov ntaub ntawv nyuaj dua (cov khoom no feem ntau yog ntxiv los txhim kho cov yam ntxwv ntawm cov roj nplua nyeem), yog li cov khoom siv me me molecular PVC feem ntau yog siv.

Tus nqi shrinkage ntawm PVC yog tsawg heev, feem ntau yog 0.2-0.6%.

 

Txhaj pwm txheej txheem txheej txheem:

Kev kho kom qhuav:Feem ntau yuav tsum tsis muaj kev kho kom qhuav.

Melting kub:185 ~ 205 degree Pwm kub: 20 ~ 50 degree . Txhaj siab: mus txog 1500bar. Tuav siab: mus txog 1000bar.

Txhaj ceev:Txhawm rau kom tsis txhob degradation ntawm cov khoom, nws yog ib qho tsim nyog yuav tsum tau siv qhov kev txhaj tshuaj nrawm heev.

Khiav thiab rooj vag: Txhua lub rooj vag zoo tuaj yeem siv tau. Yog tias ua cov khoom me me, nws yog qhov zoo tshaj plaws los siv lub rooj vag pinpoint lossis lub rooj vag submerged; Rau cov tuab tuab, nws yog qhov zoo tshaj plaws los siv lub rooj vag kiv cua. Qhov tsawg kawg nkaus txoj kab uas hla ntawm lub qhov rooj pinpoint los yog lub qhov rooj submerged yuav tsum yog 1 hli; Lub thickness ntawm lub rooj vag kiv cua yuav tsum tsis txhob tsawg tshaj li 1 hli.

Chemical thiab Physical Properties:Rigid PVC yog ib qho ntawm cov khoom siv dav siv ntau tshaj plaws.