Yog li cas intrinsic viscosity yog tseem ceeb heev rau kev tsim resin

Nyob rau hauv kev tsim kho resin, kev vam ntaub ntawv ntawm intrinsic viscosity yog qhov tseem ceeb heev rau kev pawv txheeb qhov zoo, uas ob tug yuav tau muab txheeb xyuas los ntawm cov lus qhia pib kom paub tias cov ntaub ntawv muaj kev ua haujlwm li cas. Rau hauv cov lus qhia ntau yam uas siv los txheeb xyuas qhov zoo ntawm polymer, intrinsic viscosity yog qhov tseem ceeb heev, vim tias intrinsic viscosity sib npaug nrog molecular weight, thiab nws qhia txog kev ua haujlwm, kev ua haujlwm ntawm kev kawm, thiab kev ua haujlwm thaum cuag ntawm resin. Hangzhou Zhongwang Technology Co., Ltd. Uas yog ib tug thawj tswv yim ntawm kev tsim kho tswv yim nyob rau hauv lub ntiaj teb thiab muaj ntau dua 80 tus qhia txog kev sib twb muaj nyob rau hauv kev tsim kho tswv yim yog ua kom muaj kev vam ntaub ntawv automatic viscometry rau kev tsim kho resin kom paub qhov index no raws li qhov tseem ceeb.

Roj ntawm Intrinsic Viscosity rau kev txheeb xyuas Polymer

Kev txhais rau ntawm Mark-Houwink yog qhov sib npaug uas pab txhais cov khoom ntaub uas muaj kev nyuaj thiab cov khoom ntaub uas muaj lub rooj tsuag, uas pab tau txhais cov khoom ntaub uas muaj lub rooj tsuag. Yog hais tias cov khoom ntaub uas muaj lub rooj tsuag siab, ces cov khoom ntaub yog loj; thiab yog hais tias cov khoom ntaub uas muaj lub rooj tsuag yeeb, ces cov khoom ntaub yog so. Cov khoom ntaub uas muaj lub rooj tsuag siab (thiab vim li no, cov khoom ntaub uas muaj kev nyuaj thiab siab) pab tau cov khoom ntaub muaj kev nyuaj thiab zoo dua, muaj kev ceev siab siab dua, thiab muaj kev siv zoo dua: cov khoom ntaub uas muaj kev nyuaj thiab yog qhov kev txhais tseem ceev uas siv los txhais qhov zoo ntawm cov khoom.

Piv txwv li, rau polyethylene terephthalate, cov leej twg uas muaj kev nyuaj thiab yog 0.73 thiab 0.86 dL/g rau cov khoom uas siv los ua kab mob, thiab cov leej twg yeeb rau cov khoom uas siv los ua kab mob; thaum rau polyamide, cov leej twg uas muaj kev nyuaj thiab txhais cov khoom ntaub uas muaj lub rooj tsuag raws li kev siv los ua kab mob, thiab rau PC lossis cov khoom ntaub uas siv los ua tswv yim, cov leej twg uas muaj kev nyuaj thiab txhais qhov zoo ntawm cov khoom uas muaj kev nyuaj thiab rau kev siv los ua kab mob.

Nkaus no, kev saib xyuam IV yuav pab cov neeg tsim khoom kom paub qhov tshwm sim ntawm kev tsim khoom ntxiv rau hauv qhov kawg, vim nws txhais qhov tshwm sim thaum kev tsim khoom ntawm cov khoom siv kawg ua kom muaj kev zoo siab.

Kev puas tsuaj rau kev tsim khoom thiab kev tswj hwm kev tsim khoom

Kev puas tsuaj rau kev tsim khoom ntawm cov khoom siv yog txhais los ntawm qhov loj ntawm cov khoom siv, uas yog txhais los ntawm intrinsic viscosity. Qhov viscosity ntawm cov khoom siv uas loj dua yuav pab cov neeg tsim khoom kom muaj kev nyuaj dua rau kev tsim khoom raws li qhov meej ntawm kev tshem cov khoom siv thiab qhov teeb meem ntawm kev tsim khoom, thiab yuav tsum siv lub zog ntau dua rau cov khoom siv uas muaj qhov loj ntawm cov khoom siv. Qhov viscosity ntawm cov khoom siv uas ntev dua yuav pab cov khoom siv kom haum rau kev tsim khoom, tab sis yuav tsis muaj qhov zoo siab ntawm kev tsim khoom rau kev tswj hwm ntau yam.

Cov neeg tsim khoom uas tsim cov khoom siv los ntawm cov khoom siv yuav tsum xa cov qhov intrinsic viscosity uas zoo rau kev tsim khoom, thiab yuav tsum ua cov kev saib xyuam intrinsic viscosity hauv kev tsim khoom kom paub tias cov khoom siv yuav zoo siab.

Yog li cas tsis zoo ntawm qhov ceev ntaus thiab sijhawm, tsis zoo ntawm kev saib xyuam rau cov dej thiab kev tswj hwm ntawm cov khoom sib txhawb, lossis kev tshwm sim ntawm kev tswj hwm tsis zoo yuav cuam tau rau kev hloov qhov loo ntawm molecular weight, uas tsis tau pom los ntawm kev saib xyuam ntawm cov khoom thiab kev saib xyuam qhov zoo ntawm cov khoom, uas yuav cuam tau rau kev kho cov khoom tsis zoo lossis kho dua, uas yuav muaj nqi siab. Yog li ntawd, yog li cov neeg tsim khoom tuaj yeem pom kev tshwm sim thiab kho kom zoo nyob rau lub sijhawm uas kev tshwm sim poob, thiab lawv thiab cov neeg nyob hauv qhov chaw tuaj yeem muaj nqi siab dua los ntawm kev kho cov khoom tsis zoo thiab kev kho dua. Qhov no yog tias nyob rau hauv kev tsim khoom tshwj xeeb rau cov polymer, uas qhov zoo ntawm cov khoom tsim tau yog nyob rau hauv kev tswj hwm zoo ntawm cov qhov ceev ntaus.

Kev tswj hwm qhov zoo thiab kev nyiam ntawm cov neeg siv khoom

Kev txhais tes rau kev ntsuas qhov cim ntawm cov resins yog siv los daws tias cov resins zoo li cas raws li cov kev xav ntawm cov neeg siv. Yog li, thaum kuv ntsuas qhov cim ntawm cov resins rau txhua lub tshuab uas tau tsim, nws pab tshuab tias cov khoom uas tau tsim muaj qhov loj ntawm cov molecules raws li cov neeg tsim thiab cov neeg siv tau txhais. Nws pab cov neeg siv tau siv cov resins hauv txhua qhov chaw ntawm lub ntiaj teb. Nws pab cov neeg siv tau paub tias cov khoom uas lawv siv yog zoo li cas, thiab nws pab paub tias yog cov neeg siv uas muaj kev txiav txim rau kev tsim khoom thiab cov kev txiav txim ntawd yog rau kev tsim khoom ntawm lawv, tsis rau kev tsim khoom ntawm cov neeg tsim.

Kev ntsuas qhov cim pab cov neeg siv tau txais cov qhov tseem ceeb no vim tias cov kev cuam tshuam rau qhov loj ntawm cov molecules yog pab ua rau cov resins muaj qhov loj ntawm cov molecules tsis zoo li cas, thiab ua rau muaj kev tsis zoo li cas rau: Kev puas ntawm cov khoom, Kev txhais cov fibers, Kev tsim khoom, Thiab Kev tsim khoom rau hloov.

Cov laus no yog qhov chaw uas cov resins tshaj plaws ntawm nws lub cev tau siv rau lawm. Thaum tsim cov khoom rau lub tshuab ntawm lub ntiaj teb, cov kev lag luam uas siv rau kev txheeb xyuas intrinsic viscosity yuav tsum raws li cov kev lag luam uas muaj nyob rau hauv qhov chaw ntawd kom paub tias cov khoom tau ua raws li kev cai.

Sauv cov khoom uas tuaj los ntawm kev txhawj xeeb thiab cov kev ua haujlwm uas ua kom cov khoom tau siv dua

Cov polymers yuav raug kev puas tsuaj, kev cua cuag intrinsic viscosity, thiab kev loss ntawm molecular weight thaum muaj kev ua haujlwm. Qhov no yuav ua rau cov polymers uas tau txhawj xeeb zoo siab dua, tab sis yog tias cov neeg tsim cov resins xav tsim cov khoom uas tau txhawj xeeb zoo siab dua, nws yog qhov tseem ceeb kom cov resins tau muaj intrinsic viscosity zoo li qhov xav tau rau qhov kev siv.

PET uas ntsuas qhov tshwm sim thiab qhov tshwm sim ntawm kev ua kom zoo dua. Thaum ua kev ua kom zoo dua rau PET uas tau los ntawm kev ua haujlwm-kev ua no yog qhov kev ua kom zoo dua rau qhov tshwm sim ntawm PET uas tau los ntawm kev ua haujlwm thaum nws tau pheej rau qhov hluav tis, kev ntsuas zoo yuav pab cov thawj tswv txhawb kom paub qhov ntau npaum ntawm qhov hluav tis ntawm cov khoom uas tau los ntawm kev ua haujlwm.

Nws pab lawv paub tias qhov zoo ntawm cov khoom uas tau los ntawm kev ua haujlwm yog zoo ib yam rau cov khoom uas tsis tau ua haujlwm. Thiab lawv tsis xav tau ntau dua cov khoom uas tsis tau ua haujlwm rau kev ua haujlwm. Qhov tshwm sim rau cov thawj tswv uas ua khoom. Yog li cov thawj tswv ua khoom nyob rau hauv cov khoom uas lawv ua, qhov tshwm sim ntawm kev ua kom zoo dua yuav pab lawv paub qhov ntau npaum uas yuav siv rau kev ua kom cov khoom uas tsis tau ua haujlwm thiab cov khoom uas tau los ntawm kev ua haujlwm ua raws li ib yam. Ntxiv rau qhov tshwm sim ntawm kev ua kom zoo dua uas zoo ib yam rau hauv cov khoom, lawv paub tias cov khoom yuav ua haujlwm zoo thiab lawv yuav ua haujlwm rau kev ua haujlwm uas zoo dua rau lub ntiaj teb.

Cov hais txog

Txuas yam no txhais tias kev ntxiv ntaus ntawv (intrinsic viscosity) muaj kev cuam tshuam loj rau kev tsim kho resin, uas yog tias nws ua ib qho lwm lub tswv yim zoo rau kev paub qhov loj ntawm cov duab ntawv (molecule weight), nws muaj kev cuam tshuam zoo tshaj plaws rau kev tsim kho, thiab kev tswb xyuam qhov zoo ntawm cov khoom, thiab tuaj yeem siv rau kev tsim kho resin kom tau los ua dua. Kev tswb xyuam qhov zoo ntawm kev ntxiv ntaus ntawv (intrinsic viscosity) yuav muaj qhov tseem ceeb rau cov neeg tsim kho resin zoo tshaj plaws. Hangzhou Zhongwang Technology co., Ltd. xav txaus siab los pab cov neeg tsim kho resin kom ua zoo dua li cov khoom los ntawm kev siv ib qho viscometer tshiab uas pab rau kev tsim kho nyob nrog thiab cov khoom zoo ib yam. Hu rau peb kom paub ntau dua.