Mu simenti ya matope ndi gypsum-yochokera ku gypsum, hydroxypropyl, meth methllulose makamaka gawo lamadzi ndikukula, ndipo amatha kusintha modekha ndi kukana kwa osakanikira.
Zinthu monga kutentha kwa mpweya, kutentha ndi kuthamanga kwa mphepo kumakhudza kuchuluka kwa madzi mu matope a simenti ndi gypsum. Chifukwa chake, nthawi zosiyanasiyana, pali zosiyana zina mumadzi zosungidwa ndi ma hydroxypropyl owonjezera. Mu zomanga zina, kuchuluka kwa madziwo kumatha kusinthidwa ndikukulitsa kuchuluka kwa HPMC yowonjezeredwa. Kusunga kwamadzi pansi pa kutentha kwambiri ndi chizindikiro chofunikira kusiyanitsa mtundu wa hydroxypropyl etherllulose ether.
Zabwino kwambiri hydroxpyl methylcellulose angapo zimatha kuthana bwino ndi vuto la madzi osungidwa kutentha kwambiri. Mu nyengo zotentha kwambiri, makamaka m'malo otentha ndi owuma ndi zomangamanga zowonda m'mbali mwa dzuwa, hpmc zapamwamba kwambiri zimafunikira kukonza chitetezo chamadzi cha slorry. HPMC yapamwamba kwambiri imakhala ndi kufanana kwakukulu. Magulu ake a methoxy ndi hydroxyprophoxy amagawidwa mogwirizana ndi ma cellulose molecula ophatikizira maatomu a oxygen pa hydroxyl yolumikizana ndi madzi kuti apange zomangira za hydrogen. , kotero kuti madzi aulere amathira madzi omangidwa, kuti athetse bwino madzi oyambitsidwa chifukwa cha nyengo, ndikukwaniritsa madzi ambiri.
Mphamvu yapamwamba kwambiri Kuchitira Mankhwala Omwe Amagwiritsa Ntchito Ndondomeko Kuti Muzikhala ndi Mphamvu ndi kulimbikitsa mphamvu za nkhaniyi.
Chifukwa chake, mu mamangidwe otentha kwambiri chilimwe, kuti mukwaniritse madzi a HPMC mokwanira mokwanira molingana ndi njira, ndi kubzala zoyambitsidwa ndi kuyanika kwambiri. Mavuto, komanso kuwonjezera zovuta zomangamanga. Pamene kutentha madontho, kuchuluka kwa hpmc kuwonjezeredwa kumatha kuchepetsedwa pang'onopang'ono, ndipo madzi omwewo akwaniritsidwe.
Post Nthawi: Apr-13-2023