Cellulose etherbụ polima semi-synthetic na-abụghị ionic, 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 na-ejide mmiri ②Onye na-eme ka mmiri dị arọ ③Ihe onwunwe na-agbanwe agbanwe ④Ihe onwunwe na-akpụ ihe nkiri ⑤Binder
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. Ọ bụkwa nke kachasị ukwuu. Ihe ndị a na-elekwasị anya na ojiji na ọrụ nke cellulose ether n'ọtụtụ ihe owuwu.
(1) Agba latex:
I. Tinye ozugbo na mmepụta: usoro a kwesịrị ịhọrọ ụdị hydroxyethyl cellulose delayed, yana hydroxyethyl cellulose nwere oge mgbaze nke ihe karịrị nkeji iri atọ, usoro ojiji ya bụ ndị a:
① Tinye obere mmiri dị ọcha n'ime akpa nwere ihe na-agwakọta ihe dị elu
②Malite ịmalite ịkpalite ya mgbe niile na obere ọsọ, ma jiri nwayọ tinye hydroxyethyl na ngwọta ahụ n'otu aka ahụ
③Gaa n'ihu na-agwakọta ruo mgbe mkpụrụ osisi niile ga-amịkọrọ mmiri
④Tinye ihe mgbakwunye ndị ọzọ na ihe mgbakwunye ndị bụ isi, wdg.
⑤Gwakọta ruo mgbe otu hydroxyethyl niile gbazere kpamkpam, wee tinye ihe ndị ọzọ dị na usoro ahụ, wee ghee ya ruo mgbe ngwaahịa ahụ mechara.
Ⅱ. E tinyere ihe ọṅụṅụ nne maka ojiji ma emechaa: Usoro a nwere ike ịhọrọ cellulose ozugbo, nke nwere mmetụta mgbochi 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.
Ⅲ. Kwadebe ofe maka ojiji ma emechaa: Ebe ọ bụ na ihe mgbaze organic abụghị ihe mgbaze na-adịghị mma (anaghị agbaze) maka hydroxyethyl, enwere ike iji ihe mgbaze organic ndị a kwadebe ofe. Ihe mgbaze organic ndị a na-ejikarị eme ihe bụ mmiri organic dị na usoro agba latex, dị ka ethylene glycol, propylene glycol, na ihe ndị na-emepụta ihe nkiri (dị ka diethylene glycol butyl acetate). Enwere ike itinye ofe hydroxyethyl cellulose ozugbo na agba ahụ. Nọgide na-agwakọta ruo mgbe ọ ga-agbaze kpamkpam.
(2) N'ime ihe e ji akpụcha ihe n'elu mgbidi:
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'ihi oke viscosity nke cellulose, putty na-eme ka mma, a na-ezerekwa ihe na-ada ada n'oge a na-arụ ya, ọ na-adịkwa mma ma na-azọpụta ọrụ mgbe a kpụchara ya. Ọ dị mfe karị itinye cellulose ether na putty ntụ. Mmepụta na ojiji ya dị mfe karị. Enwere ike ịgwakọta ihe na-emeju na ihe mgbakwunye ya n'otu aka ahụ na ntụ kpọrọ nkụ.
(3) Ngwa agha simenti:
N'ime ite simenti, iji nweta ike kachasị elu, a ga-eme ka simenti ahụ dị mmiri mmiri nke ọma. Karịsịa n'oge owuwu oge okpomọkụ, ite simenti ahụ na-efunahụ mmiri ngwa ngwa, a na-ejikwa usoro nke itinye mmiri zuru oke iji dobe ma fesa mmiri. Mfu nke akụrụngwa na ọrụ na-adịghị mma. Isi ihe dị na ya bụ na mmiri ahụ dị naanị n'elu, mmiri dị n'ime ya ka ezughị ezu. Ya mere, ihe ngwọta maka nsogbu a bụ ịgbakwunye ihe nchekwa mmiri asatọ na ite simenti ahụ. N'ozuzu, hydroxypropyl methyl ma ọ bụ methyl Cellulose, nkọwapụta viscosity dị n'etiti 20000-60000cps, ego mgbakwunye bụ 2%-3%. Enwere ike ịbawanye ọnụego nchekwa mmiri ruo ihe karịrị 85%. Ụzọ eji eme ihe na ite simenti bụ ịgwakọta ntụ akọrọ ahụ nke ọma ma wụsa ya na mmiri.
(4) N'ịkwanye gypsum, gypsum ejikọtara ọnụ, na gypsum na-achịkọta:
Site na mmepe ngwa ngwa nke ụlọ ọrụ owuwu ụlọ, ọchịchọ ndị mmadụ maka ihe owuwu ọhụrụ na-amụba kwa ụbọchị. N'ihi mmụba nke mmata ndị mmadụ banyere nchekwa gburugburu ebe obibi na mmụba na-aga n'ihu nke arụmọrụ owuwu ụlọ, ngwaahịa gypsum simenti etolitela ngwa ngwa. Ugbu a, ngwaahịa gypsum kachasị ewu ewu bụ gypsum plastering, gypsum boned, gypsum inlaid, na taịlị gluu. Plastering gypsum bụ ihe plastering dị elu maka mgbidi na uko ụlọ dị n'ime. Elu mgbidi e ji ya kpuchie dị mma ma dị ire ụtọ. Ihe mgbakwụnye ọkụ ụlọ ọhụrụ bụ ihe na-arapara arapara nke e ji gypsum mee dị ka ihe ndabere na ihe mgbakwunye dị iche iche. Ọ dabara adaba maka ijikọ n'etiti ihe mgbidi ụlọ dị iche iche na-adịghị mma. Ọ naghị egbu egbu, enweghị isi, ike mbido na ntọala ngwa ngwa, njikọ siri ike na njirimara ndị ọzọ, ọ bụ ihe nkwado maka bọọdụ ụlọ na owuwu blọk; ihe nnọchite anya gypsum caulking bụ ihe na-ejupụta oghere n'etiti bọọdụ gypsum na ihe ndozi maka mgbidi na mgbawa.
Ngwaahịa gypsum ndị a nwere usoro ọrụ dị iche iche. Na mgbakwunye na ọrụ nke gypsum na ihe ndị metụtara ya, isi ihe dị mkpa bụ na ihe mgbakwunye cellulose ether agbakwunyere na-arụ ọrụ dị mkpa. Ebe ọ bụ na gypsum kewara n'ime gypsum anhydrous na hemihydrate gypsum, gypsum dị iche iche nwere mmetụta dị iche iche na arụmọrụ nke ngwaahịa ahụ, yabụ ịka nká, idobe mmiri na nkwụsịtụ na-ekpebi ịdị mma nke ihe owuwu gypsum. Nsogbu a na-ahụkarị nke ihe ndị a bụ oghere na mgbawa, enweghịkwa ike iru ike mbụ. Iji dozie nsogbu a, ọ bụ ịhọrọ ụdị cellulose na ụzọ ojiji nke ihe mgbochi. N'akụkụ a, a na-ahọrọkarị methyl ma ọ bụ hydroxypropyl methyl 30000. -60000cps, ego agbakwunyere dị n'etiti 1.5% na 2%, isi ihe cellulose bụ idobe mmiri na ịbelata mmanụ. Agbanyeghị, ọ gaghị ekwe omume ịdabere na cellulose ether dị ka ihe mgbochi, ọ dịkwa mkpa ịgbakwunye ihe mgbochi citric acid iji gwakọta ma jiri ya na-enweghị mmetụta nke ike mbụ.
Njide mmiri na-ezo aka n'otú mmiri ga-esi efufu n'ụzọ ebumpụta ụwa na-enweghị mmiri mpụga. Ọ bụrụ na mgbidi ahụ kpọrọ nkụ nke ukwuu, mmiri na-amịkọrọ mmiri na ikuku sitere n'okike n'elu ala ga-eme ka ihe ahụ ghara ịpụ apụ ngwa ngwa, oghere na mgbawa ga-emekwa. A na-agwakọta usoro ojiji a na ntụ akọrọ. Ọ bụrụ na ị kwadebe ngwọta, biko lee usoro nkwadebe nke ngwọta ahụ.
(5) Ngwa agha mkpuchi okpomọkụ
Mkpụchi mkpuchi bụ ụdị ihe mkpuchi mgbidi ọhụrụ dị n'ime mpaghara ugwu. Ọ bụ ihe mgbidi nke ejiri ihe mkpuchi, ihe mkpuchi na ihe njikọ mepụta. N'ime ihe a, cellulose na-arụ ọrụ dị mkpa n'ịjikọta na ịbawanye ike. Na-ahọrọkarị methyl cellulose nwere oke viscosity (ihe dị ka 10000eps), usoro ọgwụgwọ ahụ na-adịkarị n'etiti 2%-3%, ụzọ eji ya bụ ịgwakọta ntụ ntụ kpọrọ nkụ.
(6) Onye nnọchi anya interface
HọrọHPMC20000cps maka ihe na-ejikọ taịlị, họrọ 60000cps ma ọ bụ karịa maka ihe na-ejikọ taịlị, ma lekwasị anya na ihe na-eme ka ihe sie ike na ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe ghara ịdị mma. A na-eji ya dị ka ihe na-ejide mmiri na njikọta nke taịlị iji gbochie taịlị ka mmiri ghara ịgwụ ngwa ngwa ma daa.
Oge ozi: Eprel-25-2024