Cellulose ether bụ ụdị nke na-abụghị ionic semi-synthetic elu molekul polymer. Ọ nwere ụdị abụọ nke mmiri-soluble na mgbaze dabeere Njirimara. Ọ nwere mmetụta dị iche iche na ụlọ ọrụ dị iche iche. Dịka ọmụmaatụ, n'ime ihe eji arụ ụlọ kemịkalụ, ọ nwere mmetụta ndị a na-ejikọta ọnụ: ① Onye na-ejide mmiri ② Thickener ③Leveling ④Film-forming ⑤Binder; na ụlọ ọrụ PVC, ọ bụ emulsifier na onye na-ekesa; na ụlọ ọrụ na-emepụta ọgwụ, ọ bụ ihe nkedo na N'ihi na cellulose nwere mmetụta dị iche iche nke mgbagwoju anya, ọ bụkwa nke a na-ejikarị eme ihe. N'okpuru ebe a, m ga-elekwasị anya na ojiji na ọrụ nke cellulose ethers na gburugburu ebe obibi ihe owuwu ụlọ.
1. Na agba latex
Na ụlọ ọrụ agba latex, a ga-ahọrọ hydroxyethyl cellulose. Nkọwa n'ozuzu nke viscosity bụ RT30000-50000cps, na ntụaka usoro onunu ogwu bụ n'ozuzu banyere 1.5‰-2‰. Ọrụ bụ isi nke hydroxyethyl na agba latex bụ ịgbatị, gbochie gelation pigmenti, nyere aka mgbasa nke pigmenti, latex na nkwụsi ike, ma nwee ike melite viscosity nke akụrụngwa ma na-enye aka n'ịrụ ọkwa nke ihe owuwu: Hydroxyethyl Ethyl 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'etiti uru pH nke 2 na 12. Enwere ụzọ atọ ndị a:
I. Tinye ozugbo na mmepụta:
Usoro a kwesịrị ịhọrọ ụdị egbu oge hydroxyethyl cellulose - hydroxyethyl cellulose na oge mgbasa nke ihe karịrị nkeji iri atọ. Usoro eji eme ihe bụ ndị a: ① Tinye ụfọdụ mmiri dị ọcha n'ime akpa 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 nwayọọ nwayọọ na ọbụna tinye otu hydroxyethyl n'ime ngwọta ③ Gaa n'ihu na-akpali akpali. ruo mgbe a na-agbanye ihe niile granular site na ④ Tinye mgbakwunye ndị ọzọ na ihe mgbakwunye alkaline, wdg. etisasịwo, Tinye ndị fọdụrụ n'ime ihe ndị ọzọ na-esi nri na-egweri ruo mgbe okokụre.
Ⅱ Ejiri nne mmanya:
Usoro a nwere ike ịhọrọ ụdị ngwa ngwa, ma nwee mmetụta nke cellulose mgbochi mildew. 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 nke ①–④.
Ⅲ. Maka ịkwadebe ihe ndị dị ka porridge:
Ebe ọ bụ na ihe ndị na-edozi ahụ bụ ihe na-adịghị mma (na-adịghị ike) maka otu hydroxyethyl, enwere ike ịmepụta porridges na ihe mgbaze ndị a. 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-eme 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.
2, na-ekpocha mgbidi mgbidi
Ka ọ dị ugbu a, putty na gburugburu ebe obibi bụ nke na-adịghị egbochi mmiri na nhịahụ n'ọtụtụ obodo dị na mba m ejirila ndị mmadụ kpọrọ ihe. N'ime afọ ole na ole gara aga, n'ihi na putty mere gluu na-emepụta gas formaldehyde ma na-emebi ahụ ike ndị mmadụ, a na-emepụta gluu nke polymer A na-akwado ya site na mmeghachi omume acetal nke mmanya vinyl na formaldehyde. Ya mere, a na-eji nwayọọ nwayọọ kpochapụ ihe a site na ndị mmadụ, a na-eji ihe a dochie ngwaahịa cellulose ether, ya bụ, mmepe nke ihe eji eme ihe na gburugburu ebe obibi, cellulose bụ naanị ihe dị ugbu a.
N'ime mmiri na-eguzogide mmiri, a na-ekewa ya n'ime ntụ ntụ ntụ ntụ na ntụ ntụ. N'ime ụdị putty abụọ a, methyl cellulose emezigharịrị na hydroxypropyl methyl ka a na-ahọrọkarị. Nkọwapụta viscosity bụ n'ozuzu n'etiti 30000-60000cps. Ọrụ bụ isi nke cellulose na putty bụ njide mmiri, njikọta na mmanu mmanu.
Ebe ọ bụ na usoro putty nke ndị nrụpụta dị iche iche dị iche iche, ụfọdụ bụ calcium isi awọ, calcium ọkụ, ciment ọcha, wdg, na ụfọdụ bụ gypsum ntụ ntụ, calcium isi awọ, calcium ìhè, wdg, ya mere usoro abụọ ahụ na-ahọrọ nkọwa cellulose, viscosity na penetration. . Ọnụ ego mgbakwunye bụ ihe dịka 2‰-3‰.
Na-ewu nke scraping mgbidi putty, n'ihi na isi elu nke mgbidi nwere ụfọdụ mmiri absorption (ọnụego mmịpụta mmiri nke brik mgbidi bụ 13%, na mmiri absorption ọnụego nke ihe bụ 3-5%), tinyere ya. evaporation nke n'èzí, ma ọ bụrụ na putty na-efunahụ mmiri ngwa ngwa , ọ ga-eduga na mgbawa ma ọ bụ ntụ ntụ na ihe ndị ọzọ phenomena, si otú ahụ na-ebelata ike nke putty. N'ihi nke a, ịgbakwunye cellulose ether ga-edozi nsogbu a. Mana ịdị mma nke ndochi, ọkachasị ogo calcium lime, dịkwa oke mkpa. N'ihi na cellulose nwere viscosity dị elu, ọ na-emekwa ka ọ dị elu nke putty, na-ezere ịkwa ụda n'oge a na-ewu ụlọ, ọ na-enwekwa ahụ iru ala ma na-echekwa ọrụ mgbe ọ kpụchara ya.
3. Ngwa ngwa ngwa
N'ime ngwa agha siri ike, iji nweta ike ikpeazụ n'ezie, ciment ga-abụ kpamkpam hydrated, karịsịa n'oge okpomọkụ na-ewu ụlọ, ngwa agha ahụ na-efunahụ mmiri ngwa ngwa, a na-ewerekwa usoro nke hydration zuru ezu iji nọgide na-enwe ma fesa mmiri. Akwụsị ihe onwunwe na arụ ọrụ na-adịghị mma, isi ihe bụ na mmiri dị naanị n'elu, na hydration nke dị n'ime ya ka ezughị ezu, ya mere ihe ngwọta maka nsogbu a bụ ịgbakwunye hydroxypropyl methyl cellulose ma ọ bụ methyl cellulose na ngwa ngwa. Nkọwapụta viscosity dị n'etiti 20000-60000cps, ego mgbakwunye ihe dị ka 2‰-3‰, enwere ike ịbawanye ọnụ ahịa njide mmiri karịa 85%. Usoro eji eme ihe na ngwa ngwa bụ ịgwakọta ntụ ntụ akọrọ nke ọma wee tinye mmiri.
4. Na plasta plasta, ihe nkedo na-ejikọta na plasta caulking
Site na mmepe ngwa ngwa nke ụlọ ọrụ ihe owuwu, ọchịchọ ndị mmadụ maka ihe owuwu ụlọ ọhụrụ na-abawanye kwa ụbọchị. N'ihi mmụba nke ndị mmadụ na-amata na nchekwa gburugburu ebe obibi na ọganihu na-aga n'ihu nke ịrụ ọrụ nke ọma, ngwaahịa gypsum cimentity etolitela ngwa ngwa. Ka ọ dị ugbu a, ngwaahịa gypsum a na-ahụkarị bụ plasta gypsum, gypsum bonding, inlaying gypsum, nrapado tile na ihe ndị ọzọ.
Plasta Stucco bụ ụdị akwa akwa akwa maka mgbidi ime na ụlọ. Mgbidi ndị a na-etinye na ya dị mma ma dị mma, adịghị agbada ntụ ntụ, jikọta nke ọma na mkpụrụ, enweghị mgbawa ma daa, nwee ọkụ ọkụ; plasta bonding bụ ụdị plasta. Ụdị ọhụrụ nke ụlọ ọkụ na-ekpuchi ọkụ bụ ihe na-egbuke egbuke nke gypsum dị ka ihe ndabere ma na-agbakwụnye ihe mgbakwunye dị iche iche. Ọ dị mma maka njikọta n'etiti ihe mgbidi ụlọ inorganic dị iche iche. Ọ bụ ihe na-adịghị egbu egbu, enweghị ụtọ, Ọ nwere njirimara nke ike mmalite, ngwa ngwa ngwa ngwa na njikọ siri ike, ọ bụkwa ihe na-akwado maka iwu ụlọ na ihe mgbochi;
Ngwaahịa gypsum ndị a nwere usoro ọrụ dị iche iche, na mgbakwunye na ọrụ gypsum na ihe ndị yiri ya, isi okwu bụ na mgbakwunye cellulose ether auxiliary na-arụ ọrụ na-eduga. Ebe ọ bụ na gypsum na-ekewa n'ime anhydrite na hemihydrate gypsum, gypsum dị iche iche nwere mmetụta dị iche iche na arụ ọrụ ngwaahịa, ya mere ndina, njide mmiri na nkwụsịtụ na-ekpebi àgwà nke ihe ụlọ gypsum. Nsogbu nkịtị nke ihe ndị a bụ oghere oghere, na ike mbụ enweghị ike iru. Iji dozie nsogbu a, ọ bụ nsogbu nke ịhọrọ ụdị cellulose na usoro ntinye ihe mejupụtara nke retarder. N'akụkụ a, a na-ahọrọkarị methyl ma ọ bụ hydroxypropyl methyl 30000. -60000cps, ego mgbakwunye dị n'etiti 1.5 ‰-2‰, ihe na-elekwasị anya nke cellulose bụ njigide mmiri, nkwụsịtụ na mmanu mmanu.
Otú ọ dị, ọ gaghị ekwe omume ịdabere na cellulose ether dị ka onye na-azụ azụ, ọ dịkwa mkpa ịgbakwunye citric acid retarder iji jikọta ma jiri ya mee ihe ka ike mbụ ghara emetụta ya.
Ọnụego njide mmiri n'ozuzu na-ezo aka na mfu ebumpụta ụwa nke mmiri na-enweghị mmịnye mmiri dị na mpụga. Ọ bụrụ na mgbidi ahụ kpọrọ nkụ nke ukwuu, mmịpụta mmiri na ikuku ikuku dị n'elu ala ga-eme ka ihe ahụ na-efunahụ mmiri ngwa ngwa, oghere na mgbawa ga-emekwa.
A na-ejikọta usoro eji eme ihe na ntụ ntụ. Ọ bụrụ na edoziri ngwọta, biko rụtụ aka na usoro nkwadebe nke ngwọta.
5. Ngwa mkpuchi mkpuchi
Ngwa agha mkpuchi okpomọkụ bụ ụdị ọhụrụ nke ihe mkpuchi ihe mgbochi ime ụlọ dị na mpaghara ugwu. Ọ bụ ihe mgbidi mejupụtara ihe mkpuchi ọkụ, ngwa agha na ihe nkedo. N'ime ihe a, cellulose na-arụ ọrụ dị mkpa n'ịkọwa na ịba ụba ike. N'ozuzu, họrọ methyl cellulose na elu viscosity (banyere 10000eps), usoro onunu ogwu bụ n'ozuzu n'etiti 2 ‰-3‰), na ojiji usoro bụ akọrọ ntụ ntụ mixing usoro.
6. Ihe ntanetị
Onye na-ahụ maka interface bụ HPNC20000cps, na nrapado tile karịrị 60000cps. Na interface gị n'ụlọnga, ọ na-bụ-eji dị ka a thickener, nke nwere ike melite tensile ike na akụ iguzogide.
Oge nzipu: Nov-02-2022