1. ibisobanuro n'imikorere ya Thicker
Inzoti zirashobora kongera ubushishozi irangi rishingiye kumazi ryitwa Thickeners.
Abarikira bafite uruhare runini mu gukora, kubika no kubaka amatara.
Imikorere nyamukuru ya Thicker nukwongera vicosity yo gupfuka kugirango yuzuze ibisabwa byihutirwa zinyuranye. Ariko, viscometity isabwa no guhinga mubyiciro bitandukanye biratandukanye. Urugero:
Mugihe cyo kubika, ni cyo cyifuzwa kugira ubutwari bwo hejuru bwo kubuza pigment gutura;
Mugihe cyubwubatsi, byifuzwa kugirana ubuyobe buciriritse kugirango habeho irangi ryiza ridafite irangi rikabije;
Nyuma yo kubaka, nizera ko urujijo rushobora gusubira mu rubyiruko rwo hejuru nyuma yigihe gito cyo gutangira (kugereranya) kugirango wirinde kunyeganyega.
Amazi yo kurera kwamazi ntabwo ari Newnonian.
Iyo virusi yirangi igabanuka hamwe no kwiyongera kwurugo, byitwa amazi ya pseudoplastique, kandi amarangi menshi ni amazi ya pseudoplastique.
Iyo imyitwarire yuzuye yamazi ya pseudopplastique ajyanye namateka yayo, ni ukuvuga, biraterwa nigihe, yitwa amazi ya thixotropic.
Iyo Gukora Amavuta, dukunze kugerageza gukora amababi thixotropic, nko kongeramo abongewe.
Iyo thixotropy yimpimbano ikwiye, irashobora gukemura amakosa yibyiciro bitandukanye byo gutwikira, kandi yujuje ibyifuzo bya tekiniki yintege nke zo gukwirakwira mububiko, urwego rwubwubatsi, no kumitsi byumisha.
Ababyimba bamwe barashobora guha irangi hamwe na thixotropi ndende, kuburyo ifite ubushyuhe bwo hejuru kuruhuka cyangwa ku gipimo cyo hasi (nko kubika cyangwa gutwara), kugirango birinde pigment mu kiraro cyo gutura. Kandi munsi yumuvuduko mwinshi (nko kwisiga), ifite ubushyuhe buke, kugirango igikote gifite urujya n'uruza.
Thixotropie ihagarariwe na thixotropic indangagaciro ti kandi yapimwe na Brookfield vicometer.
Ti = viscosity (yapimwe kuri 6r / min) / viscosity (yapimwe kuri 60r / min)
2. Ubwoko bwa Trickeneri ningaruka zabo Kubijyanye no guhinga
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Ubwoko bwa Mortornic burimo Bentonite, AtTumulgite, Aluminium Magnesium Millneyium, ibindi, aside kama, Acide, Acide, Acthyl
Dukurikije uko ingaruka zigira ingaruka ku mitungo yerekeye ibintu, abahoze ari bigabanyijemo Thixotropic Thickeens n'abatwara infashanyigisho. Kubijyanye nibisabwa nibisabwa, ingano ya Thickener igomba kuba itake kandi ingaruka mbi ni nziza; Ntibyoroshye guterwa na enzymes; Iyo ubushyuhe cyangwa PH agaciro ka sisitemu ihinduka, virusi iterabwoba ntirizagabanuka cyane, kandi pigment na filler ntizizemera. ; Ububiko bwiza; Kugumana amazi meza, ntakintu cyiza cyiza kandi nta ngaruka mbi kubikorwa bya film yo gutwikira.
①cellulose Thickener
Ibibyimba bya selile bikoreshwa mubice ni methylcellsellsellsellsellse na hydroxypropylmethylmethylmethylmethylcellcells, kandi bibiri bya nyuma bikoreshwa cyane.
HydroxyAythyl selile ni ibicuruzwa byabonetse mu gusimbuza amatsinda ya hydroxyl ku bice bya glucose bigize selile kamere y'amatsinda ya hydroxyerthyty. Ibisobanuro nicyitegererezo cyibicuruzwa biterwa ahanini hakurikijwe urwego rwo gusimbuza no gusomwa.
Ubwoko butandukanye bwa hydroxyyeryl nabwo bugabanijwemo ubwoko busanzwe bwo gusenyuka, ubwoko bwanditse bwihuse hamwe nubwoko bwimikorere. Kubijyanye nuburyo bwo gukoresha, HydroxyAylyl selile irashobora kongerwa mubyiciro bitandukanye mubikorwa byo kubyara. Ubwoko bwihuse bushobora kongerwaho muburyo bwifu yumye. Ariko, agaciro ka sisitemu mbere yo kongeramo bigomba kuba munsi ya 7, cyane cyane kubera ko hydroxyithyl ishongeshejwe imbere mu bice, hanyuma habaho agaciro gahagije kumazi yo kwinjira mu bice, hanyuma habaho agaciro gahagije kumazi ya PH buhoro, kandi hari igihe gihagije cyamazi gishonga buhoro buhoro, hanyuma habaho agaciro gahagije kumazi, hanyuma habaho agaciro gahagije kumazi, hanyuma habaho agaciro gahagije kumazi, kandi hari igihe gihagije cyamazi gishonga buhoro buhoro, hanyuma habaho agaciro gahagije kumazi, hanyuma habaho agaciro gahagije kumazi, hanyuma habaho agaciro gahagije kumazi, hanyuma habaho agaciro gahagije kumazi. Intambwe zijyanye nazo zirashobora kandi gukoreshwa mugutegura kwibanda kumuti wa kole hanyuma ukongereho kuri sisitemu yo kurohama.
HydroxyPropyl methylcellse nigicuruzwa cyabonetse usimbuza itsinda rya Hydroxyl ku gice cya Glucose hamwe na Melucose ishami rya selile, mugihe ikindi gice cyasimbuwe nitsinda rya hydroxyPropyl. Ingaruka zayo zijimye ni kimwe na hydroxyyethyl selile. Kandi irahanganye no gutesha agaciro, ariko amazi yacyo yo kwishyurwa ntabwo aribyiza nkibya hydroxyyethyl selile, kandi ifite ibibi bya kalling mugihe ashyushye. Kuri hydroxyproppopyl methylcellse, birashobora kongewe mumazi mugihe ikoreshwa. Nyuma yo gukangura no gutatana, ongeraho ibintu bya alkaline nkamazi ya amimoni kugirango uhindure agaciro ph kuri 8-9, no kubyuka kugeza gushonga. Kuri hydroxypropyl methylcellse nta kuvura hejuru, irashobora gutsindwa kandi yuzuye amazi ashyushye hejuru ya 85 °
Ububyimba
Ubu bwoko bwa Thickener ahanini nibicuruzwa bimwe byibumba, nka Bentonite, magnesium aluminim ibumba ryangiza, kandi rifite kandi ingaruka nziza zo guhagarika, kandi ntizigira ingaruka ku kurohama, kandi ntizagira ingaruka ku kurwanya amazi. Nyuma yo guhindurwa yumye kandi bishyirwaho muri firime, ikora nkuzuzanya muri firime yo kurohama, nibindi. Ikintu kidakwiye ni uko bizagira ingaruka kumugaragaro cyane kurwego rwo gutwikira.
③ Synthetic Polymer Thicker
Ubukonje bwa Synthetic Polymer bukoreshwa cyane muri acrylic na polyurethane (abariba). Acrylic Trickeners Ari Polymery Acrycry ikubiyemo amatsinda ya Carboxyl. Mumazi hamwe na PH agaciro ka 8-10, itsinda rya kanseri ridahinduka kandi rikabyimba; Iyo agaciro ka PH karenze 10, irashonga mumazi ikabura ingaruka mbi, bityo ingaruka mbi cyane yunvikana cyane ku gaciro kwa PH.
The thickening mechanism of the acrylate thickener is that its particles can be adsorbed on the surface of the latex particles in the paint, and form a coating layer after alkali swelling, which increases the volume of the latex particles, hinders the Brownian motion of the particles, and increases the viscosity of the paint system. ; Icya kabiri, kubyimba k'ubumwe byongera viscosiya cyicyiciro cyamazi.
(2) Ingaruka za Thickener kumiterere yo gutwika
Ingaruka zubwoko bwa Thickener kumiterere yimiterere yimpimbano niyi ikurikira:
Iyo ingano ya Thickener yiyongereye, inyenzi zihamye ryibiti byiyongera cyane, kandi viscosity ihinduka mubyukuri ihamye iyo ikorerwa imbaraga zo hanze.
Hamwe n'ingaruka za Thickener, viscolity yo gusiga irangi byihuse iyo ikorerwa imbaraga
Ukoresheje hydrophobwa yahinduwe na selile yahinduwe (nka ebs451fq), kumuvuduko mwinshi, uruzinduko ruracyari rwinshi mugihe amafaranga ari manini.
Ukoresheje ibibyimba bya Polyurethane (nka WT105a), ku gipimo cy'iminsi minini, uruzinduko ruracyari hejuru iyo amafaranga ari manini.
Ukoresheje acrylic Trickeners (nka ase60), nubwo vicosi yizuba ihamye vuba mugihe amafaranga ari manini, vicosity igabanuka vuba kurwego rwo hejuru.
3. Inshingano
(1) Uburyo bwihuse
Cellulose Ether na Acrylic-Brickeners ya Alkali irashobora kubyibumba mu bindi bice bigize gushushanya amazi mu gishushanyo no ku bice bya emulsion, bityo imiterere ya emulsion, bityo imiterere ya emulsion, bityo roho ya paulsion, bityo roho ya paulsion, bityo roho ya paulsion, bityo roho ya barangi ntishobora guhinduka.
Abari b'ububiko bararangwa cyane muri ibyo usibye kubyimba binyuze muri HyDration, babyimbye n'amashyirahamwe hagati yabo, hamwe n'ibice bitatanye, ndetse n'ibindi bice muri sisitemu. Iri shyirahamwe ridakwira mu kaga k'iminsi mike kandi twongere kwifatanya mu gipimo cy'iminsi mike, bigatuma imitekerereze yo gutwikirwa ihinduka.
Uburyo bwihuse bwabafasha mu bushobozi bwaho ni uko molekile yayo ari umurongo wa hydrophilic, inogomoro ya polymer ifite amatsinda ya lipophilic, ni ukuvuga ko afite amatsinda ya hydfiliric hamwe nimiterere ya hydrophilic na hydrophoric na hydrophobike nimiterere ya molekile zitowe. Kamere. Molekile nkiyi ntishobora kuvaho gusa no kubyimba gusa kunyunyuza icyiciro cyamazi, ariko kandi ikora miselle mugihe ibitekerezo byayo bimaze kurenga agaciro runaka. Micilles irashobora kwiteranya na polymer ya emulsion hamwe nibice byingurube byashizwemo imiterere yimiterere itatu, kandi bifitanye isano kandi bizirikana kugirango wongere vino.
Ikigaragara ni uko aya mashyirahamwe ari mu buringanire afite imbaraga, kandi abo miseli bafitanye isano barashobora guhindura imyanya yabo mugihe bakorewe imbaraga zo hanze, kugirango igikona gifite imiterere. Byongeye kandi, kubera ko molekile ifite miseli nyinshi, iyi nyubako igabanya impengamiro y'amazi kugirango yimuke bityo yongerera vinosi yicyiciro giteganijwe.
(2) Uruhare muri Coatings
Benshi mubyitwara ababana ni Polyurethanes, kandi uburemere bwabo bwa molekile buri hagati ya 103-104 ibicuruzwa biri munsi ya aside iringanire na selile uburemere bwa molekani hagati ya 105-106. Bitewe nuburemere buke bwa molecular, ubwiyombe bunoze nyuma yuko hydration ari bike, nuko umurongo wayo urashimishije kuruta uw'abatari abatari kwibasirwa.
Kubera uburemere buke bwa molekilar bwabaturage bubi, ubwitonzi bwayo mu cyiciro cy'amazi ni bike, bityo ingaruka zayo zo kwipimisha ku cyiciro cy'amazi ntabwo zikomeye. Mu rugero rwo hasi, ihinduka ry'ishyirahamwe hagati ya molekile rirenze irimbuka hagati ya molekile, sisitemu yose ikomeza guhagarika umutima no gutatanya, kandi visine iri hafi ya visika (amazi). Kubwibyo, umuhuza winsanganyamatsiko akora sisitemu ishingiye ku mazi yerekana ubushyuhe bwo hasi mugihe kiri mukarere ka kombike.
Abari b'ubuso bwibanga bongera imbaraga zijyanye na molekile kubera ishyirahamwe riri hagati yingingo mugihe cyatatanye. Muri ubu buryo, harakenewe ingufu nyinshi kugira ngo ugabanye ishyirahamwe hagati ya molekile ku gipimo cy'iminsi miremire, kandi imbaraga zo gufata ingamba zisabwa kugira ngo icyo gihe cyo kugera ku bushake ndetse n'igice cyo guhindura iminsi mike. Igaragara. Isumbuye yo hejuru yisumbuye hamwe nisuku yo hepfo-yo hepfo irashobora guhitana kubura ibibyimba bisanzwe mubintu byimiterere, ni ukuvuga, abahoze ari benshi barashobora gukoreshwa kugirango bahindure amazi ya latex. Imikorere ihindagurika, guhura nibisabwa byuzuye byo guhimba firime yuzuye kandi igambaza film.
Igihe cya nyuma: Nov-24-2022