Cellulose ether bụ polymer na-abụghị ionic semi-synthetic polymer, nke bụ mmiri-soluble na ihe mgbaze-soluble. Ọ nwere mmetụta dị iche iche na ụlọ ọrụ dị iche iche. Dịka ọmụmaatụ, n'ihe eji arụ ụlọ kemịkalụ, ọ nwere mmetụta ndị a jikọtara ọnụ:
① Onye na-ejigide mmiri, ②Ọkpụrụkpụ, ③ Ihe na-emeziwanye ihe, ④ Ihe na-emepụta ihe nkiri, ⑤ Ihe nkpuchi
Na ụlọ ọrụ polyvinyl chloride, ọ bụ emulsifier na onye na-ekesa; na ụlọ ọrụ na-emepụta ọgwụ, ọ bụ ihe nkedo na ngwa ngwa na-achịkwa ihe ntọhapụ, wdg N'ihi na cellulose nwere mmetụta dị iche iche nke mgbagwoju anya, ngwa ya Akụ ahụ bụkwa nke kachasị ukwuu. Na-esote, m ga-elekwasị anya na ojiji na ọrụ nke cellulose ether dị iche iche ihe ụlọ.
na latex agba
N'ime ụlọ ọrụ agba latex, ịhọrọ hydroxyethyl cellulose, nkọwapụta n'ozuzu nke viscosity hà nhata bụ 30000-50000cps, nke kwekọrọ na nkọwapụta nke HBR250, yana usoro ntụaka bụ n'ozuzu banyere 1.5‰-2‰. Isi ọrụ nke hydroxyethyl na agba latex bụ ịgbatị, gbochie gelation nke pigmenti, nyere aka mgbasa nke pigmenti, nkwụsi ike nke latex, na ịbawanye viscosity nke ihe ndị ahụ, nke na-enye aka n'ịkwalite arụmọrụ nke ihe owuwu ahụ: Hydroxyethyl cellulose dị mfe iji. Enwere ike ịgbaze ya na mmiri oyi na mmiri ọkụ, yana uru pH adịghị emetụta ya. Enwere ike iji ya n'enweghị nsogbu n'etiti uru PI 2 na 12. Ụzọ eji eme ihe bụ ndị a:
I. Tinye ozugbo na mmepụta
Maka usoro a, a ga-ahọrọ ụdị oge nke hydroxyethyl cellulose, na hydroxyethyl cellulose na oge mgbasa nke ihe karịrị nkeji iri atọ ga-eji. Usoro ndị a dị ka ndị a: ① Tinye ụfọdụ mmiri dị ọcha n'ime akpa nke nwere nnukwu ihe na-eme ka ọ dị elu ② Malite na-akpalite na-aga n'ihu na obere ọsọ, ma n'otu oge ahụ jiri nwayọọ nwayọọ tinye ìgwè hydroxyethyl n'ime ihe ngwọta nke ọma ③ Nọgide na-akpali ruo mgbe. A na-agbanye ihe niile granular ④ Tinye mgbakwunye ndị ọzọ na ihe mgbakwunye ndị bụ isi, wdg.
2. Ejiri nne mmanya were were mee ya emechaa
Usoro a nwere ike ịhọrọ ụdị ngwa ngwa, ma nwee mmetụta mgbochi mildew cellulose. Uru nke usoro a bụ na ọ nwere mgbanwe dị ukwuu ma nwee ike itinye ya ozugbo na agba latex. Usoro nkwadebe bụ otu usoro ①-④.
3. Mee ya ka ọ bụrụ porridge maka iji eme ihe
Ebe ọ bụ na ihe ndị na-emepụta ihe na-emepụta ihe na-adịghị mma bụ ihe ngwọta na-adịghị mma (na-adịghị edozi) maka hydroxyethyl, ihe ndị a nwere ike iji mepụta porridge. Ihe mgbaze ndị a na-ejikarị eme ihe bụ mmiri mmiri organic n'ụdị agba agba, dị ka ethylene glycol, propylene glycol, na ndị na-emepụta ihe nkiri (dị ka diethylene glycol butyl acetate). Enwere ike ịgbakwunye porridge hydroxyethyl cellulose na agba. Gaa n'ihu na-akpali akpali ruo mgbe agbazere kpamkpam.
na putty
Ka ọ dị ugbu a, n'ọtụtụ obodo dị na mba m, putty na-egbochi mmiri na nke na-eguzogide gburugburu ebe obibi enyi na enyi ejirila ndị mmadụ kpọrọ ihe. A na-emepụta ya site na mmeghachi omume acetal nke mmanya vinyl na formaldehyde. Ya mere, ndị mmadụ na-eji nwayọọ nwayọọ kpochapụ ihe a, a na-eji ngwaahịa cellulose ether eme ihe iji dochie ihe a. Nke ahụ bụ, maka mmepe nke ihe eji ewu ụlọ na gburugburu ebe obibi, cellulose bụ naanị ihe ugbu a.
N'ime mmiri na-eguzogide mmiri, a na-ekewa ya n'ime ụdị abụọ: akọrọ ntụ ntụ na-esi ísì ụtọ. N'ime ụdị abụọ a nke putty, methyl cellulose na hydroxypropyl methyl kwesịrị ịhọrọ. Nkọwapụta viscosity bụ n'ozuzu n'etiti 40000-75000cps. Ọrụ bụ isi nke cellulose bụ njide mmiri, njikọta na mmanu mmanu.
Ebe ọ bụ na putty usoro nke dị iche iche na-emepụta dị iche iche, ụfọdụ ndị isi awọ calcium, ìhè calcium, ọcha ciment, wdg, na ụfọdụ bụ gypsum ntụ ntụ, isi awọ calcium, ìhè calcium, wdg, otú nkọwa, viscosity na penetration nke cellulose na. usoro abụọ dịkwa iche iche. Ọnụ ego agbakwunyere bụ ihe dịka 2‰-3‰.
Oge nzipu: Feb-04-2023