HydroxyPropyyl methylulose, feem ntau hu ua HPMC, yog ib qho ntau yam thiab ntau yam ntxiv nrog ntau yam ntawm ntau yam kev lag luam thoob plaws ntau yam kev lag luam. Ib qho ntawm cov ntawv thov qhuas HPMC yog dej tsis muaj wallty.
Putty yog cov khoom siv uas siv tau hauv kev tsim kho, kev kho dua tshiab thiab kho cov haujlwm los sau cov khoob, tawg thiab qhov. However, traditional putty is water-soluble and can become brittle and susceptible to moisture, especially in humid environments. Qhov no yog qhov chaw dej tsis muaj putty los ua si.
Waterproof Putty yog tsim los woldert noo thiab dej, ua rau nws zoo tagnrho rau kev siv hauv cov chaw xws li chav ua noj ua haus dej. Kev siv HPMC hauv kev siv dej hauv dej tawm mus ib txoj kev ntev hauv kev txhim kho kev ua tau zoo thiab ruaj khov ntawm lub waterproof powty.
Cov yam ntxwv tseem ceeb ntawm HPMC haum rau siv nyob rau hauv Waterproof tsuas muaj xws li nws txoj kev cia dej zoo thiab ua kom tuab. HPMC yog lub ntsej muag Hydrophilic uas tuaj yeem nqus thiab khaws cov dej ntau, ua rau nws muaj cov tshuaj uas tsis zoo rau dej. Lub peev xwm tuab ntawm HPMC pab kom cov putty muaj cov cai sib xws rau cov ntawv thov tau yooj yim thiab txhaws cov khoob thiab tawg.
Lwm qhov txiaj ntsig ntawm kev siv HPMC hauv kev siv dej tsis muaj zog yog nws lub peev xwm los txhim kho lub putty txoj kev nplaum thiab cohesion. HPMC ua raws li cov nplaum, khi cov putty ua ke thiab txhim kho nws cov nplaum rau ntau qhov chaw, nrog rau cov pob zeb, ntoo, thiab hlau. Cov yeeb yam no kom ntseeg tau tias lub putty tseem muaj txawm nyob rau hauv cov chaw ntub, ua rau nws zoo rau kev siv nyob rau hauv thaj chaw raug dej.
Ntxiv rau cov txiaj ntsig saum toj no, HPMC kuj txhim kho kev tsim kho thiab kev sib tw ntawm cov dej tsis muaj zog. Nws cov qauv du thiab zoo ua rau nws yooj yim sib xyaw nrog lwm cov khoom xyaw putty thiab muab tusyees rau saum npoo. Qhov no nce tag nrho cov kev ua tau zoo tag nrho thiab ua tau zoo ntawm cov dej tsis muaj zog, ua rau nws siv tau yooj yim thiab ua tiav cov txiaj ntsig zoo dua.
Kev siv HPMC hauv dej tsis muaj waterproof tsuas yog ua rau nws ib puag ncig phooj ywg thiab muaj kev nyab xeeb siv. HPMC yog qhov tsis muaj tshuaj lom thiab biodegradable compound uas tsis ua mob rau ib puag ncig lossis ua rau muaj kev pheej hmoo rau cov neeg noj qab haus huv. Qhov no ua rau nws muaj cov khoom siv uas zoo tshaj plaws hauv kev ywg dej rau cov chaw nyob thiab tsev lag luam ua lag luam.
Siv hpmc hauv waterproof putty muaj cov txiaj ntsig ntau thiab txhim kho nws cov kev ua tau zoo thiab kav ntev. Nws cov dej cia, thickening muaj peev xwm, adhesion thiab cohesion ua nws ib qho kev ua tau zoo tshaj plaws rau dej tsis muaj sia. Ib qho ntxiv, HPMC yog ib puag ncig phooj ywg thiab muaj kev nyab xeeb siv, ua rau nws zoo tagnrho rau kev tsim kho, kho dua tshiab thiab kho cov haujlwm.
Lub Sijhawm Post: Feb-19-2025