Cellulose etherbụ polima molekul dị elu nke na-abụghị ionic semi-synthetic, nke na-agbaze mmiri ma na-agbazekwa ihe mgbaze. O nwere mmetụta dị iche iche n'ụlọ ọrụ dị iche iche. Dịka ọmụmaatụ, n'ihe owuwu kemịkalụ, ọ nwere mmetụta ndị a:
① Ihe eji echekwa mmiri, ②Onye na-eme ka mmiri sie ike, ③Ihe eji ahazi ihe, ④Ihe eji ahazi ihe nkiri,
⑤Njikọ
N'ụlọ ọrụ polyvinyl chloride, ọ bụ ihe na-eme ka ihe dị ọcha ma na-agbasa; n'ụlọ ọrụ ọgwụ, ọ bụ ihe na-ejikọ ihe na ihe eji ewepụta ihe nwayọ nwayọ ma na-achịkwa, wdg. N'ihi na cellulose nwere ọtụtụ mmetụta dị iche iche, ojiji ya. Ọgba ahụ bụkwa nke kachasị ukwuu. Na-esote, m ga-elekwasị anya na ojiji na ọrụ nke cellulose ether n'ọtụtụ ihe owuwu.
Iagba latex n
N'ụlọ ọrụ agba latex, iji họrọ hydroxyethyl cellulose, nkọwapụta izugbe nke nha anya nhata bụ 30000-50000cps, nke kwekọrọ na nkọwapụta nke HBR250, na usoro ntụaka bụ ihe dịka 1.5-2‰. Isi ọrụ nke hydroxyethyl na agba latex bụ ime ka ọ dị arọ, igbochi njikọta nke agba, nyere aka gbasaa nke agba, nkwụsi ike nke latex, na ịbawanye viscosity nke ihe ndị mejupụtara ya, nke na-enyere aka maka arụmọrụ nhazi nke owuwu ahụ: Hydroxyethyl cellulose dị mfe iji. Enwere ike ịgbaze ya na mmiri oyi ma ọ bụ mmiri ọkụ, uru pH anaghị emetụta ya. Enwere ike iji ya n'enweghị nsogbu n'etiti uru PI 2 na 12. Ụzọ eji ya bụ ndị a:
1. Tinye ozugbo na mmepụta
Usoro a, a ga-ahọrọ ụdị hydroxyethyl cellulose delayed, a ga-ejikwa hydroxyethyl cellulose nwere oge ịgbaze ihe karịrị nkeji iri atọ. Usoro ndị a bụ ndị a: ① Tinye mmiri dị ọcha n'ime akpa nwere ihe na-akpali akpali dị elu ② Malite ịkpalite ya mgbe niile na obere ọsọ, ma n'otu oge ahụ jiri nwayọ tinye otu hydroxyethyl n'ime ngwọta ahụ n'ụzọ ziri ezi ③Gaa n'ihu na-agwakọta ruo mgbe ihe niile dị na granular mikpuru ④Tinye ihe mgbakwunye na ihe mgbakwunye ndị ọzọ, wdg. ⑤Gwakọta ruo mgbe otu hydroxyethyl niile gbazere kpamkpam, wee tinye ihe ndị ọzọ dị na usoro ahụ ma ghee ya ruo mgbe ngwaahịa ahụ mechara.
2. E tinyere ihe ọṅụṅụ nne maka ojiji ma emechaa
Usoro a nwere ike ịhọrọ ụdị ozugbo, ma nwee cellulose na-egbochi mildew. Uru nke usoro a bụ na ọ nwere ike ịgbanwe agbanwe karịa ma enwere ike itinye ya ozugbo na agba latex. Usoro nkwadebe ahụ bụ otu ihe ahụ dị ka usoro ①-④.
3. Mee ya ka ọ bụrụ ofe maka ojiji ma emechaa.
Ebe ọ bụ na ihe mgbaze organic bụ ihe mgbaze na-adịghị mma (anaghị agbaze) maka hydroxyethyl, enwere ike iji ihe mgbaze ndị a mepụta porridge. Ihe mgbaze organic ndị a na-ejikarị eme ihe bụ mmiri organic dị na ngwakọta agba latex, dị ka ethylene glycol, propylene glycol, na ihe ndị na-emepụta ihe nkiri (dị ka diethylene glycol butyl acetate). Enwere ike itinye porridge hydroxyethyl cellulose ozugbo na agba ahụ. Nọgide na-agwakọta ruo mgbe ọ ga-agbaze kpamkpam.
In putty
Ugbu a, n'ọtụtụ obodo ukwu dị na mba m, ihe ndị mmadụ ji kpọrọ ihe bụ ihe na-anaghị ekpofu mmiri ma na-anaghị ekpofu ihe, nke na-anaghị ekpofu gburugburu ebe obibi. A na-emepụta ya site na mmeghachi omume acetal nke mmanya vinyl na formaldehyde. Ya mere, ndị mmadụ na-eji nwayọọ nwayọọ wepụ ihe a, a na-ejikwa ngwaahịa cellulose ether dochie ihe a. Nke ahụ bụ, maka mmepe nke ihe owuwu na-anaghị ekpofu gburugburu ebe obibi, cellulose bụ naanị ihe a na-eji eme ihe ugbu a.
N'ime putty na-anaghị eguzogide mmiri, e kewara ya ụzọ abụọ: putty ntụ ntụ kpọrọ nkụ na putty. N'ime ụdị putty abụọ a, a ga-ahọrọ methyl cellulose na hydroxypropyl methyl. Nkọwapụta viscosity dị n'etiti 40000-75000cps. Isi ọrụ nke cellulose bụ idobe mmiri, njikọ na mmanụ.
Ebe ọ bụ na usoro putty nke ndị nrụpụta dị iche iche dị iche, ụfọdụ bụ calcium isi awọ, calcium dị mfe, simenti ọcha, wdg, ụfọdụ bụkwa ntụ ntụ gypsum, calcium isi awọ, calcium dị mfe, wdg, yabụ nkọwapụta, viscosity na ọnụọgụ cellulose ịbanye n'ime nke usoro abụọ ahụ họọrọ dịkwa iche. Ego agbakwunyere dị ihe dị ka 2-3.
Oge ozi: Eprel-28-2024