Ana haɗa foda polymer mai warwatse da sauran abubuwan haɗin da ba na halitta ba (kamar siminti, lemun tsami mai laushi, gypsum, da sauransu) da kuma wasu abubuwan haɗin, abubuwan cikawa da sauran ƙari (kamar methyl hydroxypropyl cellulose ether, sitaci ether, lignocellulose, hydrophobic Agents, da sauransu) a zahiri don yin turmi mai gauraya busasshe. Lokacin da aka haɗa turmi mai gauraya busasshe da ruwa, a ƙarƙashin aikin colloid mai kariya da kuma yanke injin, ƙwayoyin foda na latex za su bazu cikin ruwa.
Saboda halaye daban-daban da gyare-gyaren kowace foda mai latex da aka raba, wannan tasirin ma ya bambanta, wasu suna da tasirin haɓaka kwarara, yayin da wasu suna da tasirin ƙara thixotropy. Tsarin tasirinsa ya fito ne daga fannoni da yawa, gami da tasirin foda mai latex akan kusancin ruwa yayin watsawa, tasirin bambancin danko na foda mai latex bayan watsawa, tasirin colloid mai kariya, da tasirin siminti da bel ɗin ruwa. Tasirin abubuwan da ke tafe sun haɗa da tasirin ƙaruwar iskar turmi da rarraba kumfa na iska, da kuma tasirin ƙarin kayan da ke ciki da hulɗa da wasu ƙari. Saboda haka, zaɓin musamman da aka raba na foda mai latex mai sake rarrabawa hanya ce mai mahimmanci don shafar ingancin samfur. Daga cikinsu, ra'ayin da aka fi sani shine cewa foda mai latex mai sake rarrabawa yawanci yana ƙara yawan iskar turmi, ta haka yana shafa man shafawa a ginin turmi, da kuma kusanci da danko na foda mai polymer, musamman lokacin da aka watsa colloid mai kariya, zuwa ruwa. Ƙara yawan α yana taimakawa wajen inganta haɗin gwiwar turmi na gini, ta haka ne inganta iya aiki na turmi. Daga baya, ana shafa turmi mai jika wanda ke ɗauke da wargajewar foda na latex a saman aikin. Tare da rage danshi a matakai uku - shanyewar layin tushe, shan sinadarin siminti, da kuma rage yawan danshi a saman iska, ƙwayoyin resin suna kusantar juna a hankali, haɗin yana haɗuwa a hankali, kuma a ƙarshe ya zama fim ɗin polymer mai ci gaba. Wannan tsari galibi yana faruwa ne a cikin ramukan turmi da saman daskararru.
Ya kamata a jaddada cewa, domin a mayar da wannan tsari ba tare da wata matsala ba, wato, idan ba a sake raba fim ɗin polymer ba lokacin da ya sake haɗuwa da ruwa, dole ne a raba colloid mai kariya na foda polymer mai sake rabuwa da tsarin fim ɗin polymer. Wannan ba matsala ba ce a tsarin turmi na siminti na alkaline, domin zai zama saponified ta hanyar alkali da aka samar ta hanyar ruwan siminti, kuma a lokaci guda, shaƙar kayan quartz zai raba shi a hankali daga tsarin ba tare da kariyar hydrophilic ba. Colloid, fim ɗin da ba ya narkewa a cikin ruwa kuma wanda aka samar ta hanyar watsawa na foda latex mai sake rabuwa da shi sau ɗaya, zai iya aiki ba kawai a cikin yanayin bushewa ba, har ma a ƙarƙashin yanayin nutsewa cikin ruwa na dogon lokaci. A cikin tsarin da ba na alkaline ba, kamar tsarin gypsum ko tsarin da ke da cikawa kawai, colloids masu kariya har yanzu suna nan a cikin fim ɗin polymer na ƙarshe saboda wani dalili, suna shafar juriyar ruwa na fim ɗin, amma tunda ba a amfani da waɗannan tsarin don A cikin yanayin nutsewa cikin ruwa na dogon lokaci, kuma polymer har yanzu yana da kaddarorin injiniya na musamman, ba ya shafar aikace-aikacen foda polymer mai warwatse a cikin waɗannan tsarin.
Lokacin Saƙo: Afrilu-25-2024