Putty wani muhimmin kayan gini ne da ake amfani da shi don daidaita bango, kuma aikin sa kai tsaye yana rinjayar mannewa da fenti da ingancin ginin. A cikin tsari na putty, cellulose ether additives suna taka muhimmiyar rawa.Hydroxypropyl Methylcellulose (HPMC), A matsayin daya daga cikin ethers cellulose da aka fi amfani da su, zai iya inganta danko, aikin gine-gine da kwanciyar hankali na ajiya na putty.
1. Abubuwan asali na Hydroxypropyl Methylcellulose
HPMC shine polymer mai narkewa wanda ba na ionic ba tare da kauri mai kyau, riƙewar ruwa, watsawa, emulsification da abubuwan ƙirƙirar fim. Dankin sa yana shafar matakin maye gurbinsa, digiri na polymerization da yanayin solubility. Maganin ruwa mai ruwa na AnxinCel®HPMC yana nuna halaye na ruwan pseudoplastic, wato, lokacin da adadin shear ya karu, dankon maganin yana raguwa, wanda ke da mahimmanci ga ginin putty.
2. Tasirin HPMC akan dankowar putty
2.1 Tasiri mai kauri
HPMC yana samar da babban maganin danko bayan narkewa a cikin ruwa. Tasirinsa na kauri yana nunawa a cikin abubuwa masu zuwa:
Inganta thixotropy na putty: HPMC na iya kiyaye putty a babban danko lokacin da yake tsaye don gujewa sagging, da rage danko lokacin da ake gogewa da haɓaka aikin gini.
Haɓaka aikin putty: Adadin da ya dace na HPMC zai iya inganta lubric na putty, sa gogewa ya fi sauƙi da rage juriyar gini.
Tasirin ƙarfin ƙarshe na putty: Sakamakon thickening na HPMC yana sa kayan filler da siminti a cikin putty ko'ina sun tarwatse, guje wa rarrabuwa da haɓaka aikin hardening bayan gini.
2.2 Tasiri akan tsarin hydration
HPMC yana da kyawawan kaddarorin riƙewar ruwa, wanda zai iya rage saurin ƙawancen ruwa a cikin sabulun ruwa, ta haka yana tsawaita lokacin hydration na putty na tushen ciminti da haɓaka ƙarfi da juriya na fashe. Koyaya, maɗaukakin danko na HPMC zai shafi saurin iska da bushewa da sauri na putty, yana haifar da raguwar aikin ginin. Saboda haka, adadin HPMC yana buƙatar tabbatar da aikin aiki yayin da yake guje wa mummunan tasiri akan lokacin hardening.
2.3 Dangantaka tsakanin nauyin kwayoyin halitta na HPMC da danko na putty
Mafi girman nauyin kwayoyin halitta na HPMC, mafi girma da danko na maganin ruwa. A cikin putty, yin amfani da HPMC mai girma (kamar nau'in da ke da danko fiye da 100,000 mPa·s) na iya inganta haɓakar ruwa da abubuwan da ke hana sagging na putty, amma kuma yana iya haifar da raguwar aiki. Sabili da haka, a ƙarƙashin buƙatun gini daban-daban, HPMC tare da ɗanko mai dacewa yakamata a zaɓa don daidaita riƙe ruwa, aiki da aiki na ƙarshe.
2.4 Tasirin sashi na HPMC akan dankowar putty
Adadin AnxinCel®HPMC da aka ƙara yana da tasiri mai mahimmanci akan dankowar putty, kuma adadin shine yawanci tsakanin 0.1% da 0.5%. Lokacin da sashi na HPMC ya yi ƙasa, tasirin daɗaɗɗa akan putty yana iyakance, kuma maiyuwa ba zai iya inganta ingantaccen aiki da riƙe ruwa ba. Lokacin da adadin ya yi yawa, danko na putty ya yi girma, ƙarfin ginin yana ƙaruwa, kuma yana iya rinjayar saurin bushewa na putty. Sabili da haka, wajibi ne don zaɓar adadin da ya dace na HPMC bisa ga ma'auni na putty da yanayin ginin.
Hydroxypropyl methylcellulose yana taka rawa a cikin kauri, riƙe ruwa da haɓaka aiki a cikin putty. Nauyin kwayoyin halitta, digiri na maye gurbin da ƙari adadinHPMCzai shafi danko na putty. Adadin da ya dace na HPMC na iya haɓaka aiki da juriya na ruwa na putty, yayin da ƙari mai yawa na iya ƙara wahalar gini. Sabili da haka, a cikin ainihin aikace-aikacen putty, halayen danko da buƙatun gini na HPMC yakamata a yi la'akari da su gabaɗaya, kuma ya kamata a daidaita ma'aunin daidai don samun mafi kyawun aikin gini da inganci na ƙarshe.
Lokacin aikawa: Fabrairu-10-2025