1. cellulose ether - cellulose ether predecessor
Cellulose etherndiyo polysaccharide yakawanda kwazvo munyika nhasi. Nzvimbo huru dzechisikigo cellulose ikotoni, miti, zvirimwa zvemumvura, uswa uye zvichingodaro. Cotton ine 92-95% cellulose; Flax ine inenge 80% cellulose; Wood ine inenge 50% cellulose.
2, cellulose ether chimiro
Cellulose ether inonzi polysaccharide yakaoma ine zviuru zvezvikamu zveglucose mu molecule, chimiro chemakemikari ndeye (C6H10O5) N. D-glucose boka rinosungwa ne β - 1,4 glucoside bonds.
Matambudziko akajairika uye zvikonzero zvikuru zvekuramba kwemvura putty pamadziro emukati
Kazhinji nzira dzekugadzirisa dambudziko
Neutral putty:
Depowder: insufficient cementitious material, cellulose ether kuchengetwa kwemvura hakuna kukwana, calcium content ye heavy calcium yakaderera.
Kuita kwekuvaka: yakagadziridzwa ne bentonite uye starch ether.
Empty drum; Uye kunamatira kwemadziro kunokonzerwa nekusakwana.
Layering: interface yekugadzirisa.
Simba: Inogonawo kugadziriswa nekugadzika calcium poda.
Lime calcium putty:
Matambudziko haana chinhu chigubhu, depowder yellowing, kuvaka hakuna kunaka, depowder, stratification, kuputika, mushure mekukora;
Depowder: isina kukwana simende zvinhu, isina kukwana cellulose kuchengetedza mvura kana kusakwana kwekuwedzera, lime calcium haina kuchena.
Kuita kwakashata kwekuvaka: bentonite uye starch ether kugadzirisa.
Empty drum; Uye kusakwana kwekunamatira kwemadziro kunokonzerwa nekuwedzerwa kwakakodzera kwelatex powder.
Layering: interface yekugadzirisa.
Yellow: kusarudzwa kusina kunaka kwe cellulose ether.
Kutsemuka: kutsemuka kwehwaro kana kutsemuka kwakanyanyisa simba, kukoira zvakanyanya.
Mushure mekuwedzera: inorema calcium mvura inonwisa chiyero chakasiyana, inokurudzirwa kusarudza zero yemvura inonwisa kana yakaderera zvikuru inorema calcium powder; Grey calcium ine isina kugezwa GaO.
Cement-based putty:
Matambudziko edhiramu isina chinhu, kuvaka hakuna kunaka, depowder, delamination, kuputika, kusakwana kwekudzivirira kwemvura, nhema coagulation;
Depowder: isina kukwana simende zvinhu, isina kukwana cellulose ether kuchengetedza mvura kana kusakwana kwekuwedzera.
Kuita kwakashata kwekuvaka: bentonite uye starch ether kugadzirisa.
Chigubhu chisina chinhu: uye kunamatira kwemadziro kunokonzerwa nekusakwana, zvine musoro kuwedzera kwe latex poda.
Layering: interface yekugadzirisa.
Yellow: Kusarudzika cellulose kusarudzwa.
Kusakwana kwekudzivirira kwemvura: haina kukwana latex poda uye isina kukwana simende zvinhu.
Kutsemuka: kutsemuka kwehwaro kana kuputika kwesimba rakawandisa, kukoira kwakanyanyisa, ne putty kuzadza gomba.
Nhema coagulation: sodium gluconate inogona kuwedzerwa kuwedzera nguva yekushanda.
Nguva yekutumira: Kubvumbi-25-2024