Polyvinyl chloride (PVC, tshwj tsis ntau) yog ib qhov polymer uas tsim los los ntawm kev sib thooj ntawm vinyl chloride monomer (VCM) nyob rau hauv kev pab ntawm cov catalyst zoo li peroxides thiab azo compounds, lossis nyob rau hauv kev sib ntxiv ntawm lub teeb thiab tshav kub raws li kev sib thooj ntawm free radical. Cov hom polymer uas muaj vinyl chloride thiab cov copolymer uas muaj vinyl chloride feem ntau hu ua vinyl chloride resins.
Nyob rau hauv qhov zoo tshaj plaws ntawm nws, zoo li kev nyab xeeb, kev plasticity, thiab kev insulate, polyvinyl chloride tau raug siv ntau nyob rau hauv kev lag luam, kev tshuab siab, kev noj qab haus huv, hauv neeg, kev sau ntiag tug, kev faib tshuab tshav qhov cub, kev tshuab pub, thiab lwm yam cheeb tsam.
Cov ntaub ntawv hais txog polyvinyl chloride's viscosity number, K value, thiab qhov ntev ntawm kev sib thooj yog ib feem ntawm cov ntsiab lus tseem ceeb ntawm qhov khoom. Yog li, kev test kom pom tias cov ntaub ntawv no tau zoo thiab nyab xeeb yog qhov tseem ceeb tshaj plaws hauv kev daws polyvinyl chloride.
Daim ntawv tso cai chab xeej GB/T3401-2007 sau tias siv cov cuab yeej Ubbelohde viscometer los kuaj xyuas qhov loj ntawm kev txuas siab thiab K value ntawm polyvinyl chloride resins tiam sis ntau. Thaum kuaj, lub teeb liab hluav taws xob muaj celsius (25±0.5)℃, thiab su temperature yuav tsum nyob nruj hauv ±0.05℃ ntawm lub teeb liab hluav taws xob.
Cov IVS400 automatic viscometer los ntawm Hangzhou Zhongwang Technology Co., Ltd. tsim los ntawm Ubbelohde viscosity ua qhov ceg, txhawj xeeb rau cov ntawv tso cai zoo li ISO, GB, thiab DIN. Nws pab tau ib qhov kev kuaj sib piv siv tshwj xeeb tshiab uas tuaj yeem ua tib neeg, ntaus tshwj xeeb tshiab, ntaus tshwj xeeb tshiab, tshem tshwj xeeb tshiab, thiab saum tshwj xeeb tshiab. Qhov tseeb ntawm lub sijhawm tuaj yeem ncav cuag txog 0.001s. Nws muab ib qho kub khaws nruj thiab zoo li cas los ntawm ≤±0.01℃ rau kev kuaj, kom meej tias tus leej twg muaj kev paub tseeb.
Kev Kuaj
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Kev Tsim Solution : Muab cov duab tshwj xeej polyvinyl chloride (PVC) nrog nplaim 1/10,000, sau nws rau hauv daim tshuab tsim kho, thiab siv DP25 tshuab tso dej (tshuab tso dej sib txawv ≤0.1%) kom tso cyclohexanone rau hauv daim tshuab tsim kho tshwj xeej;
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Kev Siv Duab Ntaub Ntawv : Sau daim tshuab tsim kho rau hauv tshuab P12 Zhongwang polymer dissolver (tuaj yeem tsim kho ntau yam tshwj xeej nyob ib txhiab), thiab siv keeb kwm magnetic kom tsim kho tshwj xeej raws li uas caij nyoog thiab sijhawm uas tau caij los;
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Kev Txhim Viscosity : Tshaja tshuab IVS400 viscometer, teem tus nqi caij nyoog ntawm dej (25℃±0.01℃), sau tshuaj sov rau hauv Ubbelohde viscometer, tshaja software, thiab kev test yuav raug ua thiab npaj ntaub ntawv nrog rau lub computer;
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Cov results ntawm test : Tus qauv IVS400 automatic viscosity measurement system yog muab sib thoo rau lub computer, uas tuaj yeem nrhiav tau cov lus nug thiab sau ntaub ntawv nrog rau lub computer, pab rau kev vam meej ntau yam ntaub ntawv viscosity;
- Zauv tshuab ntim: 1=t-to toC
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Tsaus tshuab ntim zauv : Tom qab tshuab ntim pov tseg rau siab, yuav muab thawj tsaus tshuab ntim rau hauv tshuab ntim kom tsaus thiab kho tshuab ntim.
Kev txhim kho kev tshawb nrhiav zauv tshuab ntim
- Tshuab ntim zauv IVS400
- P12 tshuab siv cov duab ntim
- Tshuab ntim meej tsham
- Tshuab ntim DP25
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