Putty yog dav siv nyob rau hauv kev tsim kho cov dej num ua ib yam khoom los sau qhov khoob thiab qhov. Nws yog cov khoom siv ntau yam uas tuaj yeem siv rau hauv ntau daim ntawv thov, suav nrog cov phab ntsa ntau, nthab, thiab plag tsev. HydroxyPropyyl methylulose (HPMC) yog ib qho tseem ceeb ntawm Putty, muab nws nrog ntau yam uas xav tau, suav nrog cov adhesion zoo heev thiab ua haujlwm. Kab lus no yuav tshuaj xyuas daim ntawv thov HPMC nyob rau hauv putty thiab txheeb xyuas qee cov teeb meem uas yuav tshwm sim hauv nws txoj kev siv thiab lawv cov kev daws teeb meem.
Daim ntawv thov HPMC hauv Putty
HPMC yog cov dej-soluble cellulose ether nrog cov yeeb yaj kiab zoo heev. Nws yog siv los ua cov tuab yaj ntaub, nplaum, thiab stabilizer nyob rau ntau cov kev siv thiab cov ntawv thov kev lag luam, suav nrog Putties. Ntxiv HPMC mus rau Putty tuaj yeem txhim kho nws txoj haujlwm ua haujlwm, kev ruaj khov thiab dej tsis kam. HPMC ua haujlwm los ntawm kev nce viscosity ntawm lub putty, yog li pab nws ua raws kev zoo dua rau saum npoo. Nws kuj tseem txhim kho kev sib kis ntawm lub putty, ua rau nws yooj yim rau siv rau saum npoo.
HPMC kuj tseem siv los ua phau ntawv sau cia hauv Putty, pab cov ntaub ntawv lo ua ke thiab nyob ruaj khov. Nws kuj tseem txwv tsis pub siv lub putty los ntawm kev tawg, shrinking los yog crumbling. HPMC ua raws li cov phau ntawv sib txuas, tsim cov kev thaiv ib puag ncig cov khoom hauv lub putty hauv lub putty, tiv thaiv lawv los ntawm kev tawg. Qhov no nce lub zog ntawm lub putty thiab ua rau nws ruaj khov.
Ib qho ntxiv, ntxiv HPMC mus rau putty tuaj yeem txhim kho nws cov dej khaws cia. HPMC pab kom cov PuTy khaws cov dej noo thiab tiv thaiv nws los ntawm kom qhuav sai sai. Qhov no muab sijhawm rau tus neeg siv sijhawm ntxiv los thov cov putty thiab xyuas kom nws ua tiav kom yog.
Teeb meem HPMC hauv Putty
Thaum HPMC muaj ntau yam zoo thaum ntxiv rau kev tso pov tseg, qee qhov teeb meem yuav tshwm sim thaum nws siv. Qee cov lus nug no suav nrog:
1. Cov lus nplaum tsis zoo: Thaum HPMC cov ntsiab lus hauv lub putty yog me me heev, tsis zoo adhesion yuav tshwm sim. HPMC yog lub luag haujlwm rau kev txhim kho cov nplaum ntawm lub putty mus rau saum npoo. Yog tsis muaj HPMC txaus, lub putty yuav tsis ua raws saum npoo, ua rau nws nyuaj rau kev thov thiab ua rau nws tawg lossis nti.
2. Teeb meem hauv kev sib xyaw: ntxiv ntau dhau HPMC rau lub putty yuav ua rau muaj kev nyuaj hauv kev sib xyaw. Lub viscos ntawm HPMC yog tus muaj siab, thiab siv ntau dhau yuav ua rau cov putty ntau tuab thiab nyuaj rau sib tov kom huv si. Qhov no tuaj yeem ua rau cov sib xyaw kom sib xyaw thiab tsis ua raws li lub ntsej muag kom zoo.
3. Lub sijhawm kom qhuav: Qee zaum, HPMC yuav cuam tshuam lub sijhawm ziab ntawm putty. HPMC qeeb lub sijhawm ziab ntawm lub putty, uas tej zaum yuav tsim nyog nyob rau qee qhov xwm txheej. Txawm li cas los xij, yog tias HPMC ntau dhau, lub putty yuav siv sijhawm ntev kom qhuav, ua rau qeeb hauv kev tsim kho.
Kev daws rau HPMC teeb meem hauv Putty
1. Cov lus nplaum tsis zoo: Txhawm rau tiv thaiv cov lus nplaum tsis zoo, ib qho nyiaj uas tsim nyog HPMC yuav tsum tau ntxiv. Tus nqi uas tsim nyog yuav nyob ntawm seb cov khoom uas muaj putty, ib puag ncig cov kev mob thiab cov khoom xav tau putty. Yog tias tsis muaj HPMC tsis txaus nyob rau hauv lub putty, ntxiv hpmc yuav tsum tau ntxiv los txhim kho cov nplaum ntawm lub putty.
2. Teeb meem hauv kev sib xyaw: Thaum sib xyaw ua ke putty uas muaj hpmc, nws yog qhov zoo tshaj rau nws maj mam thiab sib tov kom huv si. Qhov no yuav xyuas kom HPMC yog tusyees faib thoob plaws lub putty thiab tias lub putty thiab tias lub putty thiab hais tias lub putty tau muab sib xyaw kom huv, txawm sib xyaw.
3. Lub sijhawm kom qhuav: Txhawm rau kom zam dhau lub putty kom qhuav rau ntev, tus nqi ntawm HPMC tsim nyog ntxiv. Yog tias muaj ntau HPMC nyob rau hauv lub putty, txo tus nqi ntxiv yuav pab ua kom lub sijhawm kom qhuav. Tsis tas li ntawd, ib qho yuav tsum ua kom paub meej tias cov zaub mov kom huv si kom tsis txhob muaj ib feem twg uas muaj HPMC ntau dhau.
Zuag qhia tag nrho, HPMC yog ib qho tseem ceeb ntawm putty, muab nws nrog ntau yam ntawm cov khoom lag luam uas xav tau, suav nrog adhesion zoo, thiab kev ua haujlwm. Thaum qee cov teeb meem yuav tshwm sim nrog daim ntawv thov HPMC, cov no tuaj yeem daws tau yooj yim los ntawm kev siv tus nqi yog thiab sib tov kom huv. Thaum siv tau raug, HPMC tuaj yeem txhim kho qhov zoo thiab ua tau zoo ntawm putty, ua rau nws yog qhov tseem ceeb hauv kev tsim kho cov haujlwm.
Lub sij hawm Post: Sep-22-2023