A cikin 'yan shekarun nan, tare da aiwatar da manufofin da suka dace na bin manufar ci gaban kimiyya da gina al'umma mai ceton albarkatu a hankali, turmin gini na ƙasata yana fuskantar sauyi daga turmi na gargajiya zuwa turmi na gauraye busasshe, kuma masana'antar turmi na gauraye busasshe ta shiga cikin sauri. bin diddigin. A matsayin mafi mahimmancin haɗin gwiwa wajen gina samfuran turmi na gauraye busasshe, cellulose ether yana taka muhimmiyar rawa a cikin aiki da farashin turmi na gauraye busasshe. Akwai nau'ikan ethers na cellulose guda biyu: ɗaya ionic ne, kamar sodium carboxymethyl cellulose (CMC), ɗayan kuma ba ionic ba ne, kamar methyl cellulose (MC), hydroxyethyl cellulose (HEC), Hydroxypropyl cellulose (HPMC), da sauransu. A halin yanzu, yawancin samfuran ether na cellulose na duniya ana amfani da su a cikin kayan gini. Tare da saurin haɓaka masana'antar turmi na gauraye busasshe, ether na cellulose na ƙasata ya sami damar zama a wurin, kuma yanayin samfuran ƙasashen waje da ke sarrafa kasuwa ya lalace. Tare da karuwar shaharar amfani da kayayyakin turmi masu gauraye da busasshe, kasata za ta zama babbar mai samar da turmi mai gauraye da busasshe a duniya, amfani da cellulose ether zai kara karuwa, kuma masana'antunta da nau'ikan kayayyakin za su kara karuwa. Ayyukan samar da cellulose ether a cikin turmi mai gauraye da busasshe ya zama abin da masu samarwa da masu amfani da shi ke mayar da hankali a kai.
Mafi mahimmancin siffa ta cellulose ether shine riƙe ruwa a cikin kayan gini. Ba tare da ƙara cellulose ether ba, siririn turmi na sabo yana bushewa da sauri har simintin ba zai iya yin ruwa ta hanyar da ta saba ba kuma turmi ba zai iya taurarewa ya cimma kyakkyawan haɗin kai ba. A lokaci guda, ƙara cellulose ether yana sa turmi ya sami kyakkyawan laushi da sassauci, kuma yana inganta ƙarfin haɗin turmi. Bari mu yi magana game da tasirin da ke kan amfani da turmi busasshe da aka haɗa daga aikin samfurin cellulose ether.
1. Ingancin cellulose ether
Ingancin sinadarin cellulose ether yana shafar yadda yake narkewa. Misali, ƙarancin ingancin sinadarin cellulose ether, da sauri yake narkewa a cikin ruwa da kuma inganta aikin riƙe ruwa. Saboda haka, ingancin sinadarin cellulose ether ya kamata a haɗa shi a matsayin ɗaya daga cikin abubuwan bincikensa. Gabaɗaya, ragowar sinadarin cellulose ether mai ƙarfi wanda ya wuce 0.212mm bai kamata ya wuce 8.0% ba.
2. Yawan bushewar nauyi
Yawan rage nauyin bushewa yana nufin kashi na nauyin kayan da aka rasa a cikin nauyin samfurin asali lokacin da aka busar da cellulose ether a wani zafin jiki. Don wani ingancin cellulose ether, ƙimar rage nauyin bushewa ya yi yawa, wanda zai rage yawan sinadaran aiki a cikin cellulose ether, yana shafar tasirin aikace-aikacen kamfanonin da ke ƙasa, kuma yana ƙara farashin siye. Yawanci, asarar nauyi akan busar da cellulose ether bai wuce kashi 6.0% ba.
3. Yawan sinadarin sulfate a cikin cellulose ether
Ga wani ingancin cellulose ether, yawan tokar ya yi yawa, wanda zai rage yawan sinadaran da ke cikin cellulose ether kuma ya shafi tasirin aikace-aikacen kamfanonin da ke ƙasa. Yawan tokar sulfate na cellulose ether muhimmin ma'auni ne na aikin sa. Idan aka haɗa shi da yanayin samarwa na yanzu na masana'antun cellulose ether na ƙasarmu, yawanci yawan tokar da ke cikin MC, HPMC, HEMC bai kamata ya wuce kashi 2.5% ba, kuma yawan tokar da ke cikin HEC cellulose ether bai kamata ya wuce kashi 10.0% ba.
4. Danko na cellulose ether
Tasirin riƙe ruwa da kauri na cellulose ether ya dogara ne akan danko da kuma yawan sinadarin cellulose ether da aka ƙara a cikin simintin.
5. Darajar pH na cellulose ether
Dankowar samfuran cellulose ether zai ragu a hankali bayan an adana su a cikin zafi mafi girma ko na dogon lokaci, musamman ga samfuran da ke da ɗanko sosai, don haka ya zama dole a iyakance pH. Gabaɗaya, ana ba da shawarar a kula da kewayon pH na cellulose ether zuwa 5-9.
6. Watsa haske na cellulose ether
Watsa haske na cellulose ether yana shafar tasirin amfani da shi kai tsaye a cikin kayan gini. Manyan abubuwan da ke shafar watsa haske na cellulose ether sune: (1) ingancin kayan masarufi; (2) tasirin alkalization; (3) rabon tsari; (4) rabon narkewa; (5) tasirin tsaka tsaki.
Dangane da tasirin amfani, watsawar haske na cellulose ether bai kamata ya zama ƙasa da 80% ba.
7. Zafin gel na cellulose ether
Ana amfani da Cellulose ether galibi a matsayin viscosifier, plasticizer da kuma wakilin riƙe ruwa a cikin kayayyakin siminti, don haka danko da zafin gel sune mahimman ma'auni don tantance ingancin cellulose ether. Ana amfani da zafin gel don tantance nau'in cellulose ether, wanda ke da alaƙa da matakin maye gurbin cellulose ether. Bugu da ƙari, gishiri da ƙazanta suma na iya shafar zafin gel. Lokacin da zafin maganin ya tashi, polymer cellulose yana rasa ruwa a hankali, kuma danko na maganin yana raguwa. Lokacin da aka isa wurin gel, polymer ɗin ya bushe gaba ɗaya kuma ya samar da gel. Saboda haka, a cikin kayayyakin siminti, yawanci ana sarrafa zafin jiki ƙasa da zafin gel na farko. A ƙarƙashin wannan yanayin, ƙarancin zafin jiki, mafi girman danko, kuma mafi bayyana tasirin kauri da riƙe ruwa.
Lokacin Saƙo: Fabrairu-27-2023