Mhando uye akakora mashini emvura-yakavakirwa pendi pendi

1. Mhando dze thizikes uye dzakakomberedza mechani

(1) Inorganic thickener:
Inorganic thickeners mumvura-yakavakirwa masisitimu ari kunyanya clays. Se: Bentonite. Kaolin uye diatomaceous Earth (iyo huru chikamu ndeye Sio2, iyo ine chimiro chesimba) dzimwe nguva zvinoshandiswa seyakajaira sizi yezvinhu zvakashata nekuda kwezvivakwa zvavo zvekumiswa. Bentonite inoshandiswa zvakanyanya nekuda kweiyo yakakwira mvura-inopisa. Bentonite (Bentonite), anozivikanwawo seBentonite, etconite, nezvimwewo, etneral of Mostonite ine mrantiro aluminolicate madiki (Na, ca) (al, mg) 6 (si4o10) 3 (OH) 6 • NH2O. Kuita kwekuwedzera kweBentonite kunoratidzwa nekuwedzera kugona, ndiko kuti, iyo vhoriyamu yeBentonite mushure mekuzvimba muDilute hydrochloric Acdrochlem, inoratidzwa muML / GRAM. Mushure mekunge Bentonite Thickee inotora mvura uye inopwanya, iyo vhoriyamu inogona kusvika kakawanda kana kagumi isati yasimudzwa, uye nekuti ihwo hupfumi hwehukuru hwehukuru, hwakasiyana nedzimwe pakafunda muhurongwa hwekubatanidza. Muviri une kunaka kwakanaka. Mukuwedzera, uku uchigadzira kumiswa, inogona kutyaira mamwe mimwe mimwe mimwe mimwe mimwe mhedzisiro inokanganisa, saka zvinobatsira kwazvo kuvandudza kugadzikana kwekuchengetedza kwehurongwa.

Asi vazhinji sodium-based bentonites vanoshandurwa kubva kuCalcium-based bentonite kuburikidza nesodium kutendeuka. Panguva imwecheteyo yesodiumization, huwandu hukuru hwehunyanzvi hwakanaka senge calcium ion uye sodium ions ichagadzirwa. Kana zviri mukati mezvigadzirwa izvi muhurongwa zvakanyanyisa, huwandu hwakawanda hwekugadzira hwekusaruramisa hunozogadzirwa pane zvakashata zvakavanzika pamusoro peiyo emulsion, saka kune imwe nhanho, inogona kukonzera mhedzisiro yakadaro sekuzvimba uye kugura kwemulsion. Kune rimwe divi, aya ma calcium ion achange ainewo mhedzisiro yeSodium munyu unoparadzira (kana kuti polyphosphate kupararira muhurongwa hwekubatanidza, pakupedzisira kutungamira kwekupararira, kuita kuti coatter thicker, akakora kana kunyange akakora. Yakanyanya kuwanda uye kuwanda kwakaitika. Uye zvakare, mhedzisiro yeBentonite inonyanya kuve inochengetedza poda kuti ibudise mvura uye inowedzera kusimuka, saka ichaunza simba rekubatanidza, iyo isinganyanye kusanzwisisika kuti zvibodzwa izvo zvinoda kukwezva mhedzisiro. Naizvozvo, Bentonite Armanc thickens hazviwanzo kushandiswa muPlong. Nekudaro, mumakore achangopfuura, imwe data yakaratidza kuti Hemmings 'Bentone®LT. Yakagadziridzwa yakagadziriswa uye yakanatswa Hectorite ine yakanaka anti-sedimentation uye atomization mhedzisiro kana yaiswa kune Latex pendi yemhepo isina kupfira.

(2) cellulose:
Cellulose inzvimbo yakasikwa yakakwirira yakaumbwa neiyo concension of β-glucose. Uchishandisa hunhu hweboka reHydroxyl muGlucosyl Mhete, cellulose inogona kuita zvakasiyana siyana kugadzira nhevedzano yenhevedzano. Pakati pavo, itsiritation uye maitiro ekuchinja anowanikwa. Iyo cellulose ester kana cellulose ether inobva kune inonyanya kukosha cellulose derivatives. Zvigadzirwa zvinowanzoshandiswa zvinogadzirwa carboxyMethyl cellemose, hydroxytl cellulose, methyl cellulose, hydroxypruslosel methyl cellelose uye zvichingodaro. Nekuti Carboxymethyl Cellalose ine sodium Ions is is is is is is is is is is is is is is is is Putty. Iyo mvura yekunyungudika yemvura yemethylcellose inowanzo kuve yakaderera kupfuura iyo yehydroxythylcellose. Uyezve, panogona kunge paine huwandu hushoma hwenzvimbo isinganzwisisike panguva yekunyungudika, iyo ichakanganisa kutaridzika uye kunzwa nezve firimu rekuvhara, saka hazviwanzo kushandiswa paLatex pendi. Nekudaro, iyo nzvimbo yekumusoro ye methyl mhinduro yakadzikira zvishoma nezvishoma pane iyo yemamwe ma cellulose kumhinduro, saka iyo yakanaka cellulose thickener inoshandiswa mune putty. HydroxyPropyl methylcellose iri zvakare mutana weCellulose anoshandiswa zvakanyanya mumunda wePutty HydroxytHyl Cellelose inoshandiswa zvakanyanya muLatex Paint Systems nekuda kwekunetseka kwayo kwemvura uye yekuchengetwa kwemvura. Kuenzaniswa nemamwe ma celluloses, iyo isinganyanye kushanda pamari yekubatanidza yemafirimu. Zvakanakira zveHydroxyTH CellETHEL Cellulose Sanganisira zvinokwanisika kupomba, kukanganisika kwakanaka, kutadza kwakanaka, uye kwakanaka pP kugadzikana kwe viscosity. Izvo zvisina kunaka ndezvekuremerwa kusanzwisisika uye murombo kupokana. Kuti uvandudze izvi zvikanganiso, hydrophobic kushandurwa kwakaonekwa. Bonde-rakabatana hydroxylcelcellose (hec) senge maStrosolplus330, 331

(3) Polyarboxylates:
Mune ino polycarboyboylate, iyo yakakwira molecular uremu ihuremu, uye yakaderera molecular kuremerwa ndeyekupararira. Ivo vanonyanya kuADSORB Mamolekyudhi emvura muketani huru yehurongwa, iyo inowedzera zvikwangwani zveiyo yakavharidzirwa chikamu; Mukuwedzera, ivo vanogona zvakare kushambidzika pamusoro pechikamu cheLatex kuti vagadzire chidimbu chekubatanidza, chinowedzera sizi yeiyo latex, uye inowedzera iyo yekunyepedzera yeiyo chikamu chemoyo yemukati yeiyo LASEX. Nekudaro, rudzi urwu rwe thickener runyararo rwakanyanya kuremerwa, saka zvinobviswa zvishoma nezvishoma mukubatanidza zvikumbiro. Iye zvino rudzi urwu rwemberi runonyanya kushandiswa mukukora kweiyo color paste, nekuti iyo smecular uremu hwakakura, saka zvinobatsira mukupararira uye kugadzikana kwekuchengetedza kwerudzi rwevara.

(4) Alkali-Schellllable Thickener:
Kune marudzi maviri makuru eAlkali-Schellable manhau Musiyano mukuru pakati pavo musiyano mune iyo inosanganiswa monomers yaive mune iyo huru molecular cheni. Songdzane Alkali

a. Zvakajairika Alkali-Schellllable Thickener:

Iyo huru yechigadzirwa inomiririra mhando yeakajaira alkali-Schellable nhau aze-60. Ase-60 inonyanya kutora iyo coplymerization ye methacrylic acid uye etyl acrylate. Munguva yeCoplymersization Production, methacrylic acid account yeanenge 1/3 yeiyo nzvimbo yakasimba, nekuti kuvapo kweCarboxyl mapoka anoita kuti mapoka ane hydrophilipity, uye azvisarudzira maitiro ekuumba munyu. Nekuda kwekudzora kwemari, makeini emanyorerwo anowedzerwa, anowedzera iyo visikopa yehurongwa uye inogadzira yakakora. Nekudaro, dzimwe nguva huremu hwemanyorerwe hwakanyanya nekuda kwekuita kweiyo mambakwedza emuchinjiko. Munguva yekuwedzera maitiro eiyo molecular cheni, iyo molecular keteni haina kunyatso kuparadzaniswa munguva pfupi. Munguva yekuchengetera kwenguva refu, iyo molecular cheni inotambanudzwa zvishoma nezvishoma, iyo inounza post-kurerutsa kwe viscosity. Mukuwedzera, nekuti kune mashoma hydrophobic monomers mumhando yerudzi urwu rwechienda Iyo inonyanya kushandiswa mukubatanidzwa pamwe nevamwe vatatu.

b. Sangano (concord) Type Alkali Swing Thickener:

Rudzi urwu rwe thickener ikozvino ine marudzi mazhinji nekuda kwekusarudzwa kwevanhu vanoshamwaridzana uye dhizaini yemanyorerwo. Chimiro chayo chikuru chinonyanya kuumbwa neye methacrylic acid uye etyl acidlate, uye vanoshamwaridzana vanoshamwaridzana vakafanana neantiennae muchimiro, asi chete chidiki chekugovera. Ndiro idzi vanoshamwaridzana sounosonganyemba senge octopus tende rinotamba zvakanyanya kukosha mukubudirira kwekubudirira kweiyo thickener. Iyo Carboxyl Group mugadziriro yerarisa uye ine munyu-inoumba, uye iyo comelular cheni zvakare yakafanana neyakajairika alkali-shellable mutano. Kugadziriswa kumwechete kunoitika, zvekuti iyo molecular kaini inoitika. Monomer inoshamwaridzana mukati mayo inowedzera neye molecular cheni, asi chimiro chayo chine midziyo yehydrophilic chaint Aya micellers anogadzirwa neyeunuke adsorption of socusociation monomers, uye vamwe vanobatana vanoshamwaridzana vanoshamwaridzana kuburikidza nekuvhundutsa mhedzisiro ye emulsion zvimedu (kana zvimwe zvimedu). Mushure mekunge micellers inogadzirwa, ivo vanogadzirisa iyo emolsion zvimedu, mhoulecule yemvura muhurongwa hwenyika sezvinoita ma molecules aya, kana kusimudzwa kweaya mamaira uye kushungurudzika uye kusvomarara uye kusvirwa kwehurongwa hunowedzera. Naizvozvo, kugona kukuru kwerudzi urwu rwe thickener, kunyanya muLatex pendi ine memolsion yakakwirira, yakakwirira kwazvo kune iyo yeiyo yakajairika alkali-shallable manhau, saka inoshandiswa zvakanyanya muLatex pendi. Iyo huru yechigadzirwa inomiririra mhando ndeye TT-935.

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Kazhinji, manhamba ane yakakura kwazvo molecular uremu (senge cellulose uye acrylic acid), nemaketani avo anotambanudzwa mumamiriro ezvinhu emvura kuti awedzere kuwanda kwehurongwa. Uremu hwemuleculthane (kana polyether) idiki kwazvo, uye zvinonyanya kuumba musangano wekutaurirana kweVan Dros pakati pemamorita Kuparadzanisa, nekudaro kuderedza iyo visikoka, inokodzera kusvika pakumwe kwefirimu rekuvandudza, saka zvinogona kuridza basa rekuunganidza mumiririri. Kana iyo Simba raabviswa, rinogona kukurumidza kutangazve kushamwaridzana, uye visikoka yeiyo system inosimuka. Ichi chiitiko chinobatsira kuderedza viscosity uye kuwedzera kuwanda panguva yekuvaka; Uye mushure mekunge chisimba chesheya chakarasika, visikoka ichadzoreredzwa nekukurumidza kuti uwedzere ukobvu hwefirimu rekubatanidza. Mune zvinoshanda zvinoshanda, isu tine hanya zvakanyanya nekukonzeresa mhedzisiro yevatongi vakadaro pane zvePolymer emulsions. Iyo huru polymer latex zvimedu zvinotorawo musangano wehurongwa, kuitira kuti rudzi urwu rwekutaura uye nekukasira kune yakajeka (kana kuyambuka) kana yakaderera pane iyo yekushomeka kwayo. Kana kushushikana kwerudzi urwu rwekutaura uye kukwirira kana yakakwira kupfuura kushushikana kwayo mumvura yakachena, inogona kuumba ushamwari hwoga, uye visikoka inokwira nekukurumidza. Naizvozvo, apo rudzi urwu rwekutaura uye rwiyo rwekukasira pane kuderera kwekusangana kwayo, nekuti zvidimbu zvekushamisira Uye zvakare, vamwe vanoparadzira (kana acrylic manhamba) vane hydrophobic zvivakwa, uye mapoka avo ekunyora ehydrophobic anofambidzana neiya yePolyurethane, kuitira kuti hurongwa hunomuumba network hombe, iyo inokodzera kurerutsa.

2. Mhedzisiro yeiyo dzakasiyana-siyana dzepamhepo kupatsanurwa kwemvura kupokana kweLatex Pendi

Mukugadzira magadzirirwo emvura-based pendi, kushandiswa kweiyo thicken inonyanya kukosha blank, iyo inoenderana nezvakawanda zvezvivakwa zveLatex pendi, yakadai sekuvaka, kukura kwemavara, kuchengetedza uye kutaridzika uye chitarisiko. Pano isu tinotarisa pakukanganiswa kwekushandiswa kwehana pane chengetedzo yeiyo Latex pendi. Kubva pane zvitsva zvacho, tinogona kuziva kuti BentecECE uye Polycarboxylatelates: Thickeners inonyanya kushandiswa mune mamwe machira anokosha, izvo hazvizokurukurwa pano. Isu tinonyanya kukurukura zvakanyanya kushandiswa cellulose, ALKALI kupfeka, uye polyurethane (kana polyurethane (kana polyurethane (kana polyurethane (kana polyurethane (kana polyether

Kunyangwe kuremerwa nehydroxyethyl cellelose chete ndega kwakakura mukuparadzaniswa kwemvura, zviri nyore kumutsa zvakanyanya. Kushandiswa kamwechete kweAlkali kuzvimba kwacho hakuna kupatsanurwa kwemvura uye kupenga asi kwakakomba kureruka mushure mekutora. Kushandisa kamwechete kwePolyurethane kureruka, kunyangwe kupatsanurana kwemvura uye post-kurerutsa-kureruka kwakakomba, asi iyo yakajeka inogadzirwa nayo yakaoma uye yakaoma kumutsa. Uye inogamuchira hydroxytHyl cellelose uye alkali kuzvimba kwakakura, hapana kutevedzera, hapana chakaomarara, zviri nyore kumutsa, asi kune zvakare madiki emvura. Nekudaro, kana hydroxyethyl cellulose uye polyurethane anoshandiswa kutakisa, kupatsanurwa kwemvura ndiko kwakanyanya, asi hapana chimiro chakaoma. Alkali-Swellable kurerutsa uye polyurethane anoshandiswa pamwe chete, kunyangwe iyo yekuparadzaniswa kwemvura isiri kuparadzaniswa kwemvura, asi mushure mekutema, uye kushayiwa kwezasi kwakaoma kumutsa zvakaringana. Uye wekupedzisira anoshandisa chidiki chidiki chehydroxytHellyl cellulose Inogona kuoneka kuti mune yakachena acrylic emulsion system ne hydrophosity, zvakakomba kuti uregedze chikamu chemvura ne hydrophilic hydroxaketl cellyl cellyl. Kushandiswa kamwechete kwehydrophobic alkali svutugadzike uye polyurethane (kana yavo yakajairika) kuita, kunyangwe iri mbiri yekuparadzaniswa, uye inonzi yakaomarara Kushandiswa kweCellulose uye polyurethane Company Kukora, nekuda kweiyo musiyano wekupedzisira muHydrophilic uye Lipophic kukosha kweMvura Kupatsanurana uye Kukwirisa, asi iyo sediment yakapfava uye iri nyore kumutsa. Iyo yekupedzisira formula ine yakanakisa anti-yemvura kupatsanurwa kuita nekuda kweiyo chiyero chiri nani pakati pehydrophilic uye lipeilic. Ehezve, mune chaiyo formula dhizaini yekugadzira, mhando dze emlausions uye kunyorova uye kuparadzira vamiririri uye tsika yavo yehydrophilic uye lipeilicic uye lifiphilic uye lipeilicic uye madimikira anofanirwawo kutariswawo. Chete kana vasvika chiyero chakanaka chinogona kunge chiri mumamiriro ezvinhu eTermodynamic Equilibrium uye iva nekupokana kwakanaka kwemvura.

Muhurongwa hwakanyanya, kurerekera kweiyo chikamu chemvura dzimwe nguva kunoenderana nekuwedzera kweiyo visikoka yeiyo yeiyo yemifuta chikamu. Semuenzaniso, isu tinowanzo tenda kuti cellulose thickeners akakora chikamu chemvura, asi cellulose inogoverwa muchikamu chemvura