ʻEtera cellulosehiki ke hoʻomaikaʻi nui i ka hana o ka mortar pulu, a he mea hoʻohui nui ia e hoʻopilikia i ka hana kūkulu o ka mortar. ʻO ke koho kūpono o nā ethers cellulose o nā ʻano like ʻole, nā viscosities like ʻole, nā nui ʻāpana like ʻole, nā kekelē like ʻole o ka viscosity a me nā nui i hoʻohui ʻia e loaʻa ka hopena maikaʻi i ka hoʻomaikaʻi ʻana i ka hana o ka mortar pauka maloʻo.
Aia kekahi pilina linear maikaʻi ma waena o ke kūlike o ka paʻi sima a me ka nui o ka cellulose ether. Hiki i ka Cellulose ether ke hoʻonui nui i ka viscosity o ka mortar. ʻO ka nui o ka nui, ʻoi aku ka maopopo o ka hopena. ʻO ka thixotropy kiʻekiʻe o ka cellulose ether aqueous solution viscosity kiʻekiʻe, ʻo ia hoʻi kahi ʻano nui o ka cellulose ether.
ʻO ka hopena mānoanoa e pili ana i ke kiʻekiʻe o ka polymerization o ka cellulose ether, ka nui o ka hopena, ka wikiwiki o ka shear, ka mahana a me nā kūlana ʻē aʻe. ʻO ka waiwai gelling o ka hopena he mea kū hoʻokahi ia i ka alkyl cellulose a me kāna mau derivatives i hoʻololi ʻia. Pili nā waiwai gelation i ke kiʻekiʻe o ka pani ʻana, ka nui o ka hopena a me nā mea hoʻohui. No nā hydroxyalkyl modified derivatives, pili pū nā waiwai gel i ke kiʻekiʻe o ka hoʻololi ʻana o ka hydroxyalkyl. Hiki ke hoʻomākaukau ʻia ka hopena 10%-15% no ka MC viscosity haʻahaʻa a me HPMC, hiki ke hoʻomākaukau ʻia ka hopena 5%-10% no ka MC viscosity waena a me HPMC, a hiki ke hoʻomākaukau ʻia ka hopena 2%-3% no ka MC viscosity kiʻekiʻe a me HPMC. ʻO ka maʻamau, ua helu ʻia ka hoʻokaʻawale ʻana o ka viscosity o ka cellulose ether e ka hopena 1%-2%.
Kaumaha molekala kiʻekiʻeʻEtera celluloseLoaʻa iā ia ka pono hoʻomānoanoa kiʻekiʻe. Loaʻa i nā polymers me nā kaumaha molekala like ʻole nā viscosities like ʻole i loko o ka hopena hoʻohui like. Kiʻekiʻe ke kekelē. Hiki ke hoʻokō ʻia ka viscosity i manaʻo ʻia ma ka hoʻohui ʻana i kahi nui o ka cellulose ether kaumaha molekala haʻahaʻa. ʻAʻole pili iki kona viscosity i ka wikiwiki o ka shear, a hiki i ka viscosity kiʻekiʻe i ka viscosity i manaʻo ʻia, a he liʻiliʻi ka nui o ka hoʻohui i koi ʻia, a pili ka viscosity i ka pono hoʻomānoanoa. No laila, no ka hoʻokō ʻana i kahi kūlike, pono e hōʻoia ʻia kahi nui o ka cellulose ether (ka nui o ka hopena) a me ka viscosity o ka hopena. Hoʻemi pū ka mahana gel o ka hopena me ka hoʻonui ʻana o ka nui o ka hopena, a me nā gels ma ka mahana o ka lumi ma hope o ka hiki ʻana i kahi nui. Kiʻekiʻe iki ka nui o ka gelling o HPMC ma ka mahana o ka lumi.
Ka manawa hoʻouna: ʻApelila-28-2024