Focus on Cellulose ethers

Ngwa nke cellulose ether na mpaghara dị iche iche

Cellulose ether bụ ihe na-abụghị ionic semi-synthetic polymer, mmiri-soluble na ihe mgbaze abụọ, na dị iche iche ụlọ ọrụ mere site na ọrụ dị iche iche, dị ka kemịkalụ ụlọ ihe, o nwere ihe na-esonụ compound mmetụta:

① mmiri na-ejigide gị n'ụlọnga, ② onye na-eme ka ọ dị arọ, ③ ọkwa, ④ ihe nkiri na-akpụ, ⑤ ihe nkedo

Na ụlọ ọrụ PVC

ọ bụ emulsifier, na-ekesa;

Na ụlọ ọrụ excipient ọgwụ

ọ bụ ụdị ihe nkedo na ngwa ngwa ntọhapụ skeleton, n'ihi na ether cellulose nwere mmetụta dị iche iche nke mejupụtara ya, ya mere ọ bụ ubi a na-ejikarị eme ihe. N'okpuru ebe a, m na-elekwasị anya na iji cellulose ether eme ihe dị iche iche nke ụlọ na ọrụ.

Na agba latex

N'ahịrị agba latex, ịhọrọ hydroxyethyl cellulose, nkọwapụta n'ozuzu nke viscosity hà nhata bụ 3000-50000cps, ọ dabara na nkọwa HBR250, usoro ntụaka bụ n'ozuzu 1.5‰-2‰. Isi ọrụ nke hydroxyethyl cellulose na latex agba bụ thicken, gbochie pigmenti gelation, na-eme ka mgbasa nke pigmenti, latex, kwụsie ike, na ike melite viscosity nke components, na-eme ka larịị arụmọrụ nke ewu: Hydroxyethyl cellulose dị mfe iji. , Ma mmiri oyi na mmiri ọkụ nwere ike ịgbaze, ma ọ dịghị emetụta uru PH. 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, ekwesịrị ịhọrọ hydroxyethyl cellulose na-egbu oge na oge mgbasa nke ihe karịrị nkeji 30. Usoro bụ dị ka ndị a: (1) inwe elu kwesịrị bee blender container quantitative mmiri dị ọcha (2) esịtidem ike nke ndị mmadụ malitere ala-ọsọ Ịgwakọta, hydroxyethyl edo nwayọọ nwayọọ n'otu oge na-esonyere na ngwọta nke (3) nọgide na-akpali ruo mgbe niile mmiri granular ihe (4) isonyere ndị ọzọ mgbakwunye na alkaline mgbakwunye (5) nwuo ruo mgbe kpamkpam etisasịwo niile hydroxyethyl, tinye ndị ọzọ components nke usoro, egweri na okokụre ngwaahịa.

2, nke ejiri nne mmanya mee ya

Usoro a nwere ike ịhọrọ ngwa ngwa - cellulose soluble, ma nwee mildew - mmetụta akaebe. Uru nke usoro a bụ inwe nnukwu mgbanwe, nwere ike isonyere emulsioni agba ozugbo na, mee ka usoro dị ka ①-④ nzọụkwụ bụ otu.

3, ya na porridge maka ojiji

Ebe ọ bụ na ihe mgbaze organic bụ ihe mgbaze na-adịghị mma (na-adịghị ike) maka hydroxyethyl, enwere ike iji ha dozie porridge. Ihe mgbaze ndị a na-ejikarị eme ihe bụ mmiri mmiri organic na ụdị agba agba, dị ka ethylene glycol, propylene glycol na ndị na-emepụta ihe nkiri (dị ka diethylene glycol butyl acetate), porridge hydroxyethyl cellulose nwere ike tinye ya na agba, mgbe agbakwunyere, nọgide na-akpali ruo mgbe kpamkpam etisasịwo.

Na putty mgbidi scraping

Ka ọ dị ugbu a, China nọ n'ọtụtụ n'ime obodo mmiri na-eguzogide, iguzogide swab nke nchekwa gburugburu ebe obibi putty ejiriwo ndị mmadụ kpọrọ ihe, n'ime afọ ole na ole gara aga, n'ihi na ihe eji eme ụlọ gluu na-eme ka formaldehyde gas mebie ahụike mmadụ, ụlọ. A na-eme gluu nke mmanya polyvinyl na mmeghachi omume acetal formaldehyde. Ya mere, ndị mmadụ na-eji nwayọọ nwayọọ kpochapụ ihe a, na ngbanwe nke ihe a bụ cellulose ether usoro nke ngwaahịa, ya bụ, mmepe nke ihe nchebe gburugburu ebe obibi, cellulose bụ nanị ụdị ihe onwunwe ugbu a.

Na mmiri na-eguzogide putty na-ekewa n'ime akọrọ ntụ ntụ putty na putty mado ụdị abụọ, ndị a ụdị abụọ nke putty n'ozuzu na-ahọrọ methyl cellulose na hydroxypropyl methyl ụdị abụọ, viscosity nkọwapụta bụ n'ozuzu na 40,000-75000cps n'etiti ndị kasị kwesịrị ekwesị, na isi ọrụ nke cellulose. na putty bụ njigide mmiri, njikọta, mmanu na mmetụta ndị ọzọ.

N'ihi na usoro putty nke onye nrụpụta ọ bụla abụghị otu, ụfọdụ bụ calcium isi awọ, calcium ọkụ, ciment ọcha, ụfọdụ bụ gypsum ntụ ntụ, calcium isi awọ, calcium ìhè, wdg, ya mere nkọwapụta viscosity na infiltration ego nke cellulose nke abụọ formulas. abụghị otu, ọnụ ọgụgụ n'ozuzu nke ịgbakwunye bụ 2‰-3‰ ma ọ bụ karịa.


Oge nzipu: Dec-10-2021
Mkparịta ụka WhatsApp n'ịntanetị!