HPMC (hydroxypropyl methylcellulose) ndizowonjezera zofunika zomwe zimagwiritsidwa ntchito pomanga zinthu monga putty powder, zokutira, zomatira, ndi zina zotero. Zili ndi ntchito zambiri monga kukhuthala, kusunga madzi, ndi kupititsa patsogolo ntchito yomanga. Popanga ufa wa putty, kuwonjezera kwa HPMC sikungangowonjezera kusungirako madzi kwa mankhwalawa, komanso kukulitsa nthawi yake yomanga, kuteteza putty kuti asawume mofulumira panthawi yomanga, komanso kukhudza ntchito yomanga.
1. Sankhani mtundu woyenera wa HPMC
Kuchita kwa HPMC kumagwirizana kwambiri ndi kulemera kwake kwa maselo, hydroxypropyl substitution, methyl substitution ndi zina. Pofuna kukonza kusungirako madzi a putty powder, choyamba sankhani chitsanzo choyenera cha HPMC.
High mamasukidwe akayendedwe HPMC: HPMC ndi apamwamba molekyulu kulemera akhoza kupanga amphamvu maukonde dongosolo, amene amathandiza kupititsa patsogolo madzi kusungidwa kwa putty ufa ndi kupewa volatilization msanga madzi. Nthawi zambiri, HPMC yokhala ndi mamasukidwe apamwamba imakhala ndi zotsatira zabwino pakusunga madzi.
Mlingo woyenera wolowa m'malo: Kusintha kwa hydroxypropyl ndi methyl substitution ya HPMC kumakhudza kusungunuka kwake ndi mphamvu yosungira madzi. Kuchulukitsa kwa hydroxypropyl m'malo kumathandizira kukonza hydrophilicity ya HPMC, potero kumawonjezera ntchito yake yosunga madzi.
Malinga ndi zofunikira za ufa wa putty, kusankha mtundu woyenera wa HPMC kumatha kusintha kwambiri kuchuluka kwa kusungirako madzi kwa mankhwalawa.
2. Wonjezerani kuchuluka kwa HPMC yowonjezeredwa
Pofuna kupititsa patsogolo kusungirako madzi kwa ufa wa putty, kuchuluka kwa HPMC kuwonjezeredwa kukhoza kuwonjezeka moyenerera. Powonjezera gawo la HPMC, kugawa kwake mu putty kumatha kupitsidwanso bwino ndipo mphamvu yake yosungira madzi imatha kupitilizidwa.
Kuwonjezeka kwa kuchuluka kwa kuwonjezereka kudzachititsanso kuwonjezeka kwa kukhuthala kwa putty powder. Chifukwa chake, ndikofunikira kuwonetsetsa kusungidwa kwamadzi bwino ndikupewa kukhuthala kochulukirapo kuti kukhudze ntchito yomanga.
3. Kupanga koyenera
Mapangidwe a ufa wa putty amakhudza mwachindunji kusunga kwake madzi. Kuphatikiza pa HPMC, kusankha kwa zigawo zina mu chilinganizo (monga fillers, zomatira, etc.) kudzakhudzanso kusunga madzi a putty ufa.
Fineness ndi enieni padziko m'dera: The tinthu kukula ndi enieni padziko m'derapachodzaza mu putty ufa chidzakhudza kutengeka kwa madzi. Ma ufa abwino ndi ma fillers okhala ndi malo apamwamba kwambiri amatha kuyamwa bwino madzi ndikuchepetsa kutaya madzi. Chifukwa chake, kusankha koyenera kwa tinthu tating'onoting'ono ndi chinthu chofunikira kwambiri pakusunga madzi.
Kusankha zosakaniza za simenti: Ngati ufa wa putty uli ndi simenti ndi zinthu zina, ma hydration reaction ya simenti amatha kumwa madzi. Chifukwa chake, ndikofunikira kukhathamiritsa kasungidwe ka madzi a putty posintha chiŵerengero cha simenti ku filler.
4. Yang'anirani ndondomeko yosakaniza
Kusakaniza kumakhalanso ndi zotsatira zina pa kusunga madzi kwa putty powder. Kusakaniza koyenera kungathandize HPMC kubalalitsa kwathunthu ndikusakanikirana ndi zinthu zina kuti mupewe kusiyana kwa kusunga madzi komwe kumachitika chifukwa cha kusakanikirana kosagwirizana.
Nthawi yoyenera yosakaniza ndi liwiro: Ngati nthawi yosakaniza ili yochepa kwambiri, HPMC ikhoza kusungunuka kwathunthu, zomwe zidzakhudza ntchito yake yosungira madzi. Ngati kuthamanga kwa kusakaniza kuli kwakukulu, mpweya wochuluka ukhoza kuyambitsidwa, zomwe zimakhudza ubwino wa putty powder. Chifukwa chake, kuwongolera koyenera kwa kusakanikirana kumathandizira kukonza kusungidwa kwamadzi kwa putty powder.
5. Sungani chinyezi ndi kutentha kwa chilengedwe
Kusungidwa kwa madzi a putty powder sikungogwirizana ndi zipangizo ndi ndondomeko, komanso kumagwirizana kwambiri ndi chinyezi ndi kutentha kwa malo omanga. M'malo omwe ali ndi kutentha kwakukulu komanso chinyezi chochepa, chinyezi cha putty powder ndi chosavuta kusuntha, chomwe chimapangitsa kuti chiume mofulumira komanso kumakhudza ntchito yomanga.
Panthawi yomanga, kutentha koyenera ndi chinyezi kuyenera kusungidwa momwe zingathere kuti ufa wa putty usataye madzi mwachangu. Kuwongolera koyenera kwa kutentha kozungulira ndi chinyezi kungathenso kupititsa patsogolo kusungidwa kwa madzi kwa putty powder.
6. Onjezani chosungira madzi
Kuphatikiza pa HPMC, othandizira ena osungira madzi amathanso kuganiziridwa kuti awonjezeredwa ku ufa wa putty, monga ma polima ena, polyvinyl mowa, etc. Othandizira osungira madziwa amatha kupititsa patsogolo kusungirako madzi a putty, kuwonjezera nthawi yomanga, ndikuletsa putty kuti asawume ndi kusweka mofulumira kwambiri.
Komabe, powonjezera othandizira osungira madzi, ndikofunikira kulabadira kuyanjana kwawo ndi HPMC kuti muwonetsetse kuti palibe zoyipa zomwe zimachitika kapena kusokoneza ntchito yomanga ya putty.
7. Gwiritsani ntchito ukadaulo wowongolera chinyezi
Nthawi zina zapadera, ukadaulo wowongolera chinyezi ungagwiritsidwe ntchito kupititsa patsogolo kusungidwa kwa madzi a putty powder. Mwachitsanzo, kugwiritsa ntchito zingwe zosindikizira zokhala ndi madzi kapena zida zochepetsera mpweya zimatha kuchepetsa kutayika kwa madzi pakupanga, kusunga kunyowa kwa putty layer, potero kumakulitsa nthawi yomanga ndikuwongolera kusunga madzi.
Kusungidwa kwa madzi kwa putty powder kumatha kusinthidwa bwino posankha mtundu woyenera waMtengo wa HPMC, kuonjezera ndalama zowonjezera, kukhathamiritsa chilinganizo, kuwongolera njira yosakaniza, kulamulira chinyezi ndi kutentha kwa malo omanga, ndi zina. Monga gawo lofunikira la ufa wa putty, kupititsa patsogolo kusungirako madzi kwa HPMC sikungangowonjezera luso la zomangamanga, komanso kupititsa patsogolo ntchito yomaliza yomanga ndikuchepetsa zolakwika ndi mavuto pomanga. Chifukwa chake, kumvetsetsa ndikuzindikira njirazi kuti muchepetse kuchuluka kwa madzi osungirako ndikofunikira kwambiri kwa mabizinesi omwe amapanga ndikugwiritsa ntchito ufa wa putty.
Nthawi yotumiza: Mar-20-2025