Dab tsi yog qhov tseem ceeb ntawm kev siv hydroxypropyl methylcellulose?
—— Lus Teb: HPMC yog dav siv nyob rau hauv cov ntaub ntawv siv, txheej, hluavtaws resins, ceramics, tshuaj, khoom noj khoom haus, textiles, ua liaj ua teb, tshuaj pleev ib ce, luam yeeb thiab lwm yam lag luam. HPMC tuaj yeem muab faib ua qib kev tsim kho, qib zaub mov thiab qib tshuaj raws li lub hom phiaj. Tam sim no, feem ntau ntawm cov khoom siv hauv tsev yog qib kev tsim kho. Nyob rau hauv kev tsim kho qib, putty hmoov yog siv ntau npaum li cas, li 90% yog siv rau putty hmoov, thiab tus so yog siv rau cement mortar thiab kua nplaum.
Yuav ua li cas paub qhov zoo ntawm HPMC yooj yim thiab intuitively?
—— Lus Teb: (1) Whiteness: Txawm hais tias dawb tsis tuaj yeem txiav txim siab seb HPMC puas siv tau yooj yim, thiab yog tias cov tshuaj ntxuav hniav dawb ntxiv thaum lub sijhawm tsim khoom, nws yuav cuam tshuam rau nws qhov zoo. Txawm li cas los xij, feem ntau ntawm cov khoom zoo muaj cov xim zoo nkauj. (2) Fineness: Qhov zoo ntawm HPMC feem ntau muaj 80 mesh thiab 100 mesh, thiab 120 mesh tsawg dua. Feem ntau HPMC tsim nyob rau hauv Hebei yog 80 mesh. Qhov zoo tshaj qhov fineness, feem ntau hais, qhov zoo dua. (3) Lub teeb xa hluav taws xob: muab hydroxypropyl methylcellulose (HPMC) rau hauv dej los tsim cov pob tshab colloid, thiab saib nws lub teeb xa tawm. Qhov loj dua lub teeb transmittance, qhov zoo dua, qhia tias muaj tsawg insolubles nyob rau hauv nws. . Lub permeability ntawm ntsug reactors feem ntau zoo, thiab cov kab rov tav reactors yog phem, tab sis nws tsis txhais hais tias qhov zoo ntawm ntsug reactors zoo dua li cov kab rov tav reactors, thiab cov khoom zoo yog txiav txim los ntawm ntau yam. (4) Lub ntiajteb txawj nqus tshwj xeeb: qhov loj dua qhov tshwj xeeb lub ntiajteb txawj nqus, qhov hnyav dua qhov zoo dua. Qhov tshwj xeeb yog loj, feem ntau vim hais tias cov ntsiab lus ntawm hydroxypropyl pawg hauv nws yog siab, thiab cov ntsiab lus ntawm hydroxypropyl pawg yog siab, cov dej tuav tau zoo dua. (5) Kev kub hnyiab: Siv ib feem me me ntawm cov qauv thiab ignite nws nrog hluav taws, thiab cov seem dawb yog tshauv. Cov khoom dawb ntau dua, qhov ua tau zoo dua, thiab yuav luag tsis muaj cov khoom seem hauv cov khoom ntshiab.
Tus nqi ntawm hydroxypropyl methylcellulose yog dab tsi?
—– Teb; tus nqi ntawm hydroxypropylmethyl nyob ntawm nws cov purity thiab cov hmoov tshauv. Qhov siab dua qhov purity, tsawg dua cov hmoov tshauv, tus nqi siab dua. Txwv tsis pub, qhov qis purity, cov hmoov tshauv ntau dua, tus nqi qis dua. Ton rau 17,000 yuan ib tuj. 17,000 yuan yog cov khoom ntshiab uas yuav luag tsis muaj impurities. Yog tias chav tsev nqi siab dua 17,000 yuan, cov txiaj ntsig ntawm cov chaw tsim khoom tau nce. Nws yog ib qho yooj yim kom pom seb qhov zoo los yog phem raws li cov hmoov tshauv hauv hydroxypropyl methylcellulose.
Dab tsi viscosity ntawm hydroxypropyl methylcellulose yog haum rau putty hmoov thiab mortar?
—– Teb; putty hmoov feem ntau yog 100,000 yuan, thiab qhov yuav tsum tau rau mortar yog siab dua, thiab nws xav tau 150,000 yuan kom yooj yim siv. Ntxiv mus, qhov tseem ceeb tshaj plaws ua haujlwm ntawm hydroxypropyl methylcellulose yog dej tuav, ua raws li thickening. Nyob rau hauv cov hmoov nplej, tsuav yog cov dej tuav tau zoo thiab cov viscosity tsawg (70,000-80,000), kuj tseem ua tau. Tau kawg, viscosity qis dua 100,000 yog siab dua, thiab cov txheeb ze dej tuav tau zoo dua. Thaum lub viscosity siab tshaj 100,000, qhov viscosity muaj feem xyuam rau cov dej tuav Cov kev cuam tshuam tsis zoo.
Post lub sij hawm: Nov-21-2022