Ma ka hoʻohanaʻana o ka hydroxyprooppyl milll celluloseHpmc,ʻike pinepine mākou he mea maʻamau ia i hoʻokaʻawaleʻia i nāʻanoʻelua: koke koke a lohi. E hoʻomaopopo iā mākou i kaʻokoʻa ma waena o ka wikiwiki wikiwiki a lohi i ka hoʻohemoʻana o ka hydrolbopyl milllē.
ʻO ka hoʻolahaʻana o HPMC i ka hoʻohanaʻana i ka hoʻokeleʻana o Cross-Link no ka mālamaʻana i ka wai,ʻaʻole hiki i ka hpmc ke ala i ka waihoʻoluʻu,ʻaʻole i hiki ke nānāʻia
Hiki ke kapaʻiaʻo HPMC i kapaʻiaʻo HPMC Ke hālāwaiʻia ka wai anuanu, hiki iā ia ke wehe wikiwiki i ka wai wela. Ma ka hoʻouluʻana, e hāʻule ana ka mahana o ka hopena o ka hopena e hāʻule i kahi mahana. (Ka mahana o kā mākou gel he 60 ° C), e hele mālie ka viscosity a hiki i kahiʻano transparent a me ka sticky gel.
Eia kaʻokoʻa ma waena o ka hopena koke a me ka hopena wikiwiki. Inā he mau nīnau kāu e pili ana i kēiaʻike, hiki iāʻoe ke nīnau mai iā mākou.
ʻO ka hydroxyprooppyl methyl celllouse hpmc delays cement cement
Ka hoʻohuiʻana i ka hydroxyprooppyl milll cellulose i nā cement e hoʻolōʻihi i kona hydration. No laila he aha kāu eʻike ai pehea e hana ai? E nānā kākou i ka hydroxyprooppyl milll cellulouse e hoʻokuʻu i ka hydration cement. Kumu kānāwai.
1. Ua komo i ka hypothesis hypothesis
E hoʻomaʻemaʻe mākou i ka hydroxyprooppyl milllll cellulose e hoʻonui i ka viscosity o ka hopena Eia nō naʻe,ʻo ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa i loko o kēia hōʻike i loaʻa i kahi mea ikaika e hiki ai i ka hiki ke pale i ka hydration cement. No laila,ʻaʻole pono kēia maʻi kolohe. Purchez et al. Ke kānalua nei i kēia hypothesis. I kaʻoiaʻiʻo,ʻaʻole i pōkole ka manawa o ka ono a iʻole ka migration a iʻole ka pōkole,ʻaʻole iʻikeʻia i ka lohiʻana o ka cement cement.
2, ka degradation alkaline
Ua hoʻohanaʻiaʻo Polyeschers i ka hōʻikeʻana ma lalo o nā kūlana alkaline e hana i nā mea e hana ai i nā carboxyl carboxyfical carboxylic e kau i ka hydration cement. No laila,ʻo ka lohiʻana o ka hydration o ka hydroxyprooppyl milllulose ma muli o kāna degradation alkalinecax e hana ai i nā maʻi alkalinecar. Eia nō naʻe, Pourchez et al. ʻIkeʻia he kūpono loa nā keiki kāne ma lalo o nāʻano alkaline, hoʻokaʻawaleʻia, he liʻiliʻi liʻiliʻi nā huahana make, a ua loaʻa ka liʻiliʻi o nā huahana degradatation ma ke kaliʻana o ka hoʻohemoʻana.
3, ke AdGorpika
Hiki i ka Adsorppb i ka hydroxxyplayl millluluse bellow cements i keʻano o ka cements i nāʻano he nui a me nā crystaltalization o ka cements. Purchez et al. loaʻa e loaʻa ana i nā mea e pili ana i nā mokuahi Eia kekahi, ma keʻano o ka cellulose eter,ʻoi aku ka ikaika o ka hec ʻO ka haʻahaʻa o kaʻike o ka hydroxythyl ma Hec a iʻole hydroxyprooppyl ma HPMC, eʻoi aku ka ikaika Hōʻike hou aku kaʻike houʻana i ka hiki o nā huahana hydortion o nā huahana hydration e pili ana i keʻano o ka hālāwaiʻana, akā ua kali nui ka maʻi. ʻO Cellulose eter o Trical Silcium Silcate a me kāna mau huahana hydration, he mea haʻahaʻa loa ia Ua hoʻomau mau ka hauʻoli o ka hyndrate.
ʻO kēia he hydroxyproopyl millll celllous i ke kauʻana i ka cement cement cement reement reement cement hydration. Manaʻo mākou e hiki i kēiaʻike ke hiki i nā mea āpau e hoʻomaopopo i keʻano o ka hana a me ka hoʻohanaʻana.
Post Time: Jun-18-2022