Matsayin hydroxypropyl methylcellulose a cikin putty
Daga kauri, riƙe ruwa da gina ayyuka uku.
Kauri: Za a iya kauri cellulose don dakatarwa, kiyaye daidaiton bayani da daidaito, da tsayayya da sagging. Riƙewar ruwa: Sanya foda mai sanya ta bushe a hankali, kuma yana taimakawa amsawar ash calcium ƙarƙashin aikin ruwa. Gina: Cellulose yana da tasirin lubricating, wanda zai iya sa foda na putty yana da kyakkyawan aiki. Hydroxypropyl methylcellulose baya shiga cikin kowane nau'in sinadari kuma yana taka rawa kawai. Ana saka foda mai laushi da ruwa don yin bangon bango, wanda shine halayen sinadarai, saboda akwai samuwar sabon sinadarin calcium carbonate. Babban abubuwan da ke cikin ash calcium foda sune: cakuda calcium hydroxide Ca (OH) 2, calcium oxide CaO da ƙananan adadin calcium carbonate CaCO3. Ash calcium yana samar da sinadarin calcium carbonate a ƙarƙashin aikin CO2 a cikin ruwa da iska, yayin da hydroxypropyl methyl Cellulose kawai yana riƙe da ruwa kuma yana taimakawa mafi kyawun dauki na ash calcium, wanda shi kansa ba ya shiga cikin kowane hali.
Mun farko nazarin dalilan da foda digo na putty daga albarkatun kasa na putty: ash calcium foda, hydroxypropyl methylcellulose, nauyi alli foda, ruwa ash calcium foda.
1. A cikin ainihin samarwa, don hanzarta bazuwar, ana ƙara yawan zafin jiki na calcination zuwa 1000-1100 ° C. Saboda girman girman albarkatun ƙasa ko rashin daidaituwar zafin jiki a cikin kiln yayin ƙirƙira, lemun tsami yakan ƙunshi lemun tsami mara ƙarfi da lemun tsami. Calcium carbonate a cikin lemun tsami da ke ƙarƙashin wuta ba a rushe gaba ɗaya ba, kuma ba shi da ƙarfin haɗin gwiwa yayin amfani da shi, wanda ba zai iya samar da isasshen ƙarfin haɗin gwiwa ga putty ba, wanda ke haifar da cirewar foda wanda ya haifar da rashin ƙarfi da ƙarfin putty.
2. Mafi girman abun ciki na calcium hydroxide a cikin ash calcium foda, mafi kyawun taurin putty da aka samar. Akasin haka, ƙananan abubuwan da ke cikin calcium hydroxide a cikin ash calcium foda, mafi muni da taurin putty a wurin samarwa, yana haifar da matsalar cire foda da cire foda.
3. Ana hada foda na calcium ash tare da babban adadin foda mai nauyi, wanda ke sa abun cikin ash calcium ya yi ƙasa da ƙasa don samar da isasshen ƙarfi da ƙarfi ga maƙarƙashiya, yana haifar da zubar da foda. Babban aikin putty foda shine riƙe ruwa, samar da isasshen ruwa don hardening na ash calcium foda, da kuma tabbatar da isasshen tasiri. Idan akwai matsala tare da ingancin hydroxypropyl methylcellulose ko abun ciki mai tasiri yana da ƙasa, ba za a iya samar da isasshen danshi ba, wanda zai sa hardening ya zama kasa kuma ya sa putty ya sauke foda.
Ana iya samuwa daga sama cewa ingancin hydroxypropyl methylcellulose yana da matukar talauci kuma ba zai iya cimma wani sakamako ba, kuma ƙwayar putty zai fadi. Babban dalilin shine maroƙi mai nauyi mai nauyi alli.
Lokacin aikawa: Satumba-22-2022