Putty hmoov yog ib qho khoom kho kom zoo nkauj tsev thiab tau siv dav hauv phab ntsa sab hauv thiab sab nrauv phab ntsa. Nyob rau hauv xyoo tsis ntev los no, putty hmoov muaj hydroxypropylulose (HPMC) tau dhau los ua kev tsim kho vim nws qhov kev ua tau zoo. HPMC yog cov hluavtaws cellulose ether tau los ntawm cov tshuaj kho kho ntuj hloov kho cov pob cellulose. Nws muaj cov dej ua kom zoo heev, dej tuav tseg, ua yeeb yaj kiab zaj duab xis thiab lwm yam khoom.
1. Cov dej zoo khaws cia
Qhov tseem ceeb tshaj plaws ntawm HPMC hauv cov hmoov putty yog nws cov dej ua haujlwm zoo. Thaum lub sij hawm tsim kho cov txheej txheem, tso hmoov nplej yog sib xyaw nrog dej los ua cov tshuaj txhuam. Qhov sib xyaw no yuav tsum muaj qee lub sijhawm ntawm cov sijhawm kom qhuav thiab muaj zog tom qab tau thov rau phab ntsa. HPMC tuaj yeem tswj hwm cov dej noo hauv qhov sib tov thiab tiv thaiv nws dhau los ntawm kev ua kom tau cov hmoov uas muaj powty muaj lub sijhawm ua haujlwm txaus. Qhov no tsis tsuas yog pab txhawb kev tsim kho, tab sis kuj tseem yuav pab ua tau zoo ntawm cov txheej pufty thiab tiv thaiv cov kab nrib pleb thiab tev thaum lub sijhawm ua kom qhuav.
2. Txhim kho kev tsim kho kev tsim kho
HydroxyPropyl methylcellose muab cov hmoov nplaum ua kom zoo rau cov khoom, ua rau nws smoother thiab yooj yim dua rau kev lag luam thaum lub sijhawm tsim kho. Cov nyhuv tuab ntawm HPMC ua rau cov hmoov putty muaj qhov tsim nyog viscosity, ua kom yooj yim los thov thaum kev tsim kho thiab txo qhov nyuaj ntawm kev ua haujlwm. Ib qho ntxiv, HPMC tuaj yeem txhim kho cov hmoov zoo thiab muaj hmoov ua ke, kom cov neeg tuaj yeem ua kom zoo nkauj los ntawm kev siv tsis ncaj ncees.
3. Txhim Kho Adhesion
Lub zog sib txuas ntawm cov hmoov putty yog qhov tseem ceeb rau nws cov txiaj ntsig zoo nkauj kawg thiab ua kom ntev. Cov lus qhia ntawm HPMC tuaj yeem txhim kho txoj kev sib raug zoo ntawm cov hmoov txhuv nplej siab thiab phab ntsa. Nws cov khoom siv ua yeeb yaj kiab zoo tsim ib qho kev ua yeeb yaj kiab ntom ntom tom qab lub hmoov muaj putty, uas txhim kho cov nplaum ntawm cov hmoov nplaum rau ntawm phab ntsa. Cov cuab yeej no pab txhim kho kev ua kom tsis kam thiab tev ua tsis taus ntawm cov hmoov uas muaj sia, yog li txuas cov kev pabcuam lub neej ntawm phab ntsa.
4. Txhim kho saum npoo smoothness
Qhov kawg nyhuv ntawm cov hmoov putty nyob ntawm ntau ntawm cov smoothness ntawm nws nto. HPMC tuaj yeem tsim qhov chaw du thiab tiaj tiaj ntawm phab ntsa los ntawm kev txhim kho qhov kev sib tw thiab cov khoom siv tus kheej ntawm cov hmoov putty. Qhov smoothness no tsis tsuas yog txhim kho cov kev ua kom zoo nkauj ntawm phab ntsa, tab sis kuj tseem muab lub hauv paus zoo rau kev tsim kho tom ntej, kom cov xim muaj covly npog thiab qhia tau cov nyhuv zoo tshaj plaws.
5. Cov kev tawg ua tau zoo heev
Lub Phab Ntsa Putty tau yooj yim cuam tshuam los ntawm ib puag ncig cov xwm txheej thaum lub sij hawm ua kom qhuav, ua rau shrinkage thiab tawg. Los ntawm nws cov dej khaws cia thiab ua yeeb yaj kiab ua yeeb yam, HPMC tuaj yeem ua kom qeeb qeeb ntawm kev ziab khaub ncaws, txo qis kev ntxhov siab, thiab tiv thaiv qhov tshwm sim ntawm cov kab nrib pleb. Tsis tas li ntawd, txoj kev ua yeeb yaj kiab Elastic txheej tsim los ntawm HPMC kuj tseem tuaj yeem nqus kev ntxhov siab rau qee yam, ntxiv txhim kho cov kab nrib pleb tsis kam ntawm cov txheej putty.
6. Lub neej zoo ib puag ncig kev yoog
HPMC tuaj yeem muab cov hmoov txhuas kom zoo hloov kho, tso cai rau nws kom tswj tau ruaj khov nyob rau txawv txav huab cua. Piv txwv li, hauv qhov chaw siab khiav ceev ntawm HPMC tuaj yeem tiv thaiv putty hmoov los ntawm kev ziab tawm vim yog dej nrawm; Hauv cov chaw tsawg-qhov kub thiab HPMC tuaj yeem tswj hwm cov hmoov tsis muaj zog thiab tsis txhob siv cov teeb meem nyuaj los ntawm qhov kub tsawg. Qhov kev hloov kho no ua rau HPMC-muaj cov hmoov putty kom tau dav siv nyob rau hauv ntau txoj haujlwm tsim kho thiab muaj zog rau kev siv thoob ntiaj teb.
7. Kev txhim kho huab cua tsis kam thiab kav ntev
Lub ntsa loog tsim yog nthuav tawm ib puag ncig sab nraud ntev thiab yog corroded los ntawm cua, hnub, nag thiab lwm yam ntuj. Cov lus qhia ntawm HPMC tuaj yeem txhim kho cov huab cua tsis kam thiab cov hmoov tsis txaus. Cov yeeb yaj kiab tiv thaiv tsim los ntawm HPMC tsis tuaj yeem tiv thaiv cov kev yaig ntawm cov kev sib tw ntawm cov kev laus thiab kev puas tsuaj ntawm cov phab ntsa putty. Qhov no pab kom muaj kev huv thiab kev zoo nkauj ntawm lub tsev sab nrauv sab nrauv, txo kev kho kom zoo thiab cov nqi kho.
8. Kev tiv thaiv ib puag ncig thiab kev nyab xeeb
Xws li cov khoom ntsuab thiab ib puag ncig phooj ywg, HPMC tsis muaj cov tshuaj muaj teeb meem thiab tsis muaj mob rau tib neeg kev noj qab haus huv. Tsis tas li ntawd, kev siv HPMC hauv cov hmoov putty tuaj yeem txo cov pa tawm ntawm cov kuab tshuaj thiab cov khoom siv tsis sib xws (vocs), ua raws li kev tiv thaiv niaj hnub. Qhov no tsis tsuas yog txo cov pa phem ib puag ncig thaum lub sijhawm kev tsim kho, tab sis kuj muab cov pej xeem nrog ib puag ncig kev noj qab haus huv.
9. Yooj yim rau khw thiab thauj
Putty hmoov muaj HPMC feem ntau muaj cov khoom tso ruaj ruaj ruaj khov thiab tsis yooj yim rau qhov tsis zoo thaum lub sijhawm khaws cia ntev. Nws lub powdery lub cev daim ntawv kuj tau txhawb nqa ntim, tsheb thauj mus los thiab khaws cia, txo qhov kev pheej hmoo ntawm cov khoom lag luam tsis zoo thiab kev thauj mus los. Cov kev tswj hwm cov saw hlau yooj yim hauv kev tswj hwm cov khoom lag luam, txo tus nqi thauj khoom rau cov ntaub ntawv tsim tsev.
Putty hmoov uas muaj hydroxypropy kasthylculose kev sib raug zoo, txhim kho kev ua haujlwm zoo, txhim kho kev tsim kho, txhim kho cov kev tsim kho zoo, thiab huab cua zoo tsis kam. Nrog ntau yam zoo xws li kev nyab xeeb thiab kav ntev li kev tiv thaiv ib puag ncig thiab kev thauj mus los, nws tau dhau los ua cov khoom kho kom zoo nkauj. Raws li kev tsim kho kev lag luam qhov kev thov kom nce, hpmc-muaj cov hmoov zoo putty yuav muaj tseeb ua lub luag haujlwm tseem ceeb hauv kev txhim kho yav tom ntej.
Lub Sijhawm Post: Feb-17-2025