Mhando dzeAffmixture dzinowanzo shandiswa pakuvaka yakaoma-yakasanganiswa dhaka, maitiro avo ekuita, maitiro echiito, uye pesvedzero yavo yekuita kwezvigadzirwa zvakaoma-motsi. Iko kuvandudza mhedzisiro yemvura-yekuchengetedza mvura yakadai se cellense ether uye starch yeLatex hupfu uye fiber zvinhu mukuita kweiyo yakaoma-yakavhenganiswa mota yakakurumbira.
Admixture anotamba yakakosha basa mukuvandudza kuita kwekuvaka kuomeswa, asi kuwedzera kwemutengo wakaomeswa unoita kuti madhiri akaomeswa kupfuura ayo akaomesesa mauto, ayo anokonzeresa anopfuura makumi mana muzana emutengo wezvekutora mune yakaoma-yakavhenganiswa. Parizvino, chikamu chakafungidzirwa chemufaro chinopihwa nevatorwa nevatorwa, uye chirevo chechigadzirwa chakapihwawo nemutengesi. Nekuda kweizvozvo, mutengo wezvigadzirwa zvakaoma-mongororo zvinoramba zvakakwirira, uye zvakaoma kugutsikana zvakajairika masonsinry uye kupururudza marara ane huwandu hwakakura uye huwandu hwakawanda; Zvigadzirwa zvakakwirira-misika zvinodzorwa nemakambani ekunze, uye zvakaoma-zvakasanganiswa vagadziri vefaira vane purofiti yakaderera uye mutengo usina kunaka wekushivirira; Iko kushaikwa kwehurongwa hwekurongeka uye kwakanangidzirwa pakushandiswa kwemishonga yemishonga, uye mafomu ekunze akateedzana.
Kubva pane zvikonzero zviri pamusoro, iyi pepa inoongorora uye inofananidza zvimwe zvinhu zvinowanzo shandiswa zvinoshandiswa zvinonakidza, uye pane izvi, zvinoitwa nekuita kwemigadzirwa yakaoma-yakasanganiswa uchishandisa adment.
1 mvura inochengetedza mumiririri
Mvura Kuchengeta Mumiriri ndeyekushambadzira kusanzwisisika kwemvura yekuchengetedza kwemvura kwekuita kwemvura yakaoma-yakavhenganiswa, uye zvakare imwe yekiyi yekubvumirana kuti uone mutengo wechero rakaoma-rakavhenganiswa.
1. Hydroxyprupyl methyl cellelose ether (hpmc)
HydroxyPropyl methylcellose izita renzvimbo dzakateedzana kwezvigadzirwa zvakaumbwa nekuita kweAlkali cellalose uye kuendeswa mumiririri pasi pemamwe mamiriro ezvinhu. Alkali cellulose inotsiviwa nekusiyana kwekunyengedza vamiririri kuti vawane akasiyana cellulose eter. Maererano neIonization Progriynices of Sdzs, Cellulose eterities inogovaniswa muzvikamu zviviri: Ionic (senge carboxyMethyl cellemelle) uye isiri-ionic (yakadai se methyl cellose). Maererano nerudzi rwetsiva, cellulose ether inogona kukamurwa muMonether (senge methyl cellulose) uye yakasanganiswa ethyropropropyl methyl cellelose). Maererano nekumwe salubility, inogona kukamurwa kuita zvemvura (senge hydroxeksyl cell-solulose celly-solulose mheremello cellylose.
Iyo Mechanism yeCell yeCellulose ether muMoter ndeye inotevera:
(1. Asi tembiricha yayo yegungwa mumvura inopisa yakakwirira zvakanyanya kupfuura iyo ye methyl cellulose. Iyo solubility mumvura inotonhora inovandudzwa zvakare yakaenzaniswa ne methyl cellulose.
. Tembiricha inokanganisawo zvavakaita, sekuwedzera kwekuwedzera, viscosity inoderera. Nekudaro, viscosity yakakwira ine yakaderera tembiricha mari pane methyl cellelose. Kugadziriswa kwayo kwakasimba kana kuchengetwa pamhepo tembiricha.
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. Caustic soda uye lime mvura ine zvishoma kushanda pane zvayo kuita, asi Alkali inogona kukurumidza kukurumidza kupaza uye kuwedzera zvavakaita. Hydroxyprupyl methylcellose yakachengetwa kune zvakajairika kumaronda, asi kana kusungwa kwemhinduro kwakakwirira, iyo visikopa yehydroxyproslose mhinduro inowanzowedzera kuwedzera.
. Senge polyvinyl doro, starch ether, miriwo gamu, nezvimwe.
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2. Methylcellose (MC)
Mushure mekunge machira akanyatsorwadziswa ane alkali, cellulose ether anogadzirwa kuburikidza neyekutevedzana kwemaitiro ne methane chloride seyedenda. Kazhinji, iyo degree rekutsiva ndeye 1.6 ~ 2.0, uye iyo solubility yakasiyana nemadhigirii akasiyana ekutsiva. Izvo ndezvevasina-ionic cellulose ether.
. Mhinduro yaro yemvura yakagadzikana kwazvo mune huwandu hwePH = 3 ~ 12. Iyo ine kuwirirana kwakanaka ne starch, guar gum, nezvimwewo uye vazhinji surfachan. Kana tembiricha ichisvika kumhepo tembiricha, gelation inoitika.
. Kazhinji, kana huwandu hwehuwandu hwakakura, hushoma hushoma, uye visikoka yakakura, iyo mwero wekuchengetwa kwemvura wakakwira. Pakati pavo, huwandu hwekuwedzera hunonyanya kuitwa pane iyo yekuchengetwa kwemvura, uye mwero weViscosity haina kuenzana zvakananga kusvika padanho rekuchengetera mvura. Iyo yekunyungudika chiyero inonyanya kuenderana neiyo degree rekushandurwa kwepasi kweCellulose zvimedu uye tangi. Pakati peiyo metherulose methelose erinculose uye methyl cellulose uye hydroxyprusll
. Kazhinji, kukwirira kwakanyanya, kwakaipisisa kuchengetwa kwemvura. Kana tembiricha inovhuvhuta 40 ° C, kuchengetwa kwemvura methyl cellulose kuchave kuderedzwa zvakanyanya, kukanganisa zvakanyanya kuvakwa kwemutya.
. "Kunamatira" pano kunoreva kushushikana kwakanzwika pakati peiyo mushandi weMushandi weMushandi uye substrate, kureva kuti, iyo Shear Ristance yerudzi. Kunamatira kwakakwira, kurwisa Shefu kwakakura kwakakura, uye simba rinodiwa nevashandi vari mukati mekushandiswa kwakakura zvakare, uye kuita kwekuvaka kune murombo. Methyl Cellulose Adernan iri pane imwe nhanho pakati mu cellulose ether zvigadzirwa.
3. Hydroxythylcellose (Hec)
Izvo zvinogadzirwa kubva pakunyatsonatswa Iyo degree rekutsiva kazhinji 1.5 ~ 2.0. Iyo ine hydrophilikuti yakasimba uye iri nyore kutora unyoro.
(1. Kugadziriswa kwayo kwakasimba pakupisa kwakanyanya pasina gomba. Inogona kushandiswa kwenguva yakareba iri pasi pekupisa kwakanyanya mudhaka, asi kuchengetwa kwemvura kwayo kwakaderera pane iyo ye methyl cellulose.
. Alkali inogona kusimudzira kupaza kwayo uye zvishoma kuwedzera zvavakaita viscosity. Kupararira kwayo mumvura kuri kuipa zvishoma pane iyo ye methyl cellulose uye hydroxypruppropyl methyl cellulose. .
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Starch ether
Starwe anaiters inoshandiswa mumadongo inoshandurwa kubva kune zvakasikwa polysaccharides. Senge mbatatisi, chibage, kassava, bhinzi dzemapundu uye zvichingodaro.
1. Yakagadziridzwa starch
Starch Ether Yakagadziriswa kubva Potato, chibage, Cassava, etc. ine zvakanyanya kuderedza kudzikira kwemvura mvura pane cellulose ether. Nekuda kweiyo yakasiyana degree rekushandurwa, kugadzikana kuAcid naAlkali kwakasiyana. Zvimwe zvigadzirwa zvakakodzera kushandiswa mune gypsum-based moturs, nepo vamwe vanogona kushandiswa mumotokari-yakavakirwa motsi. Iko kushandiswa kwe strar ether mune motsi kunonyanya kushandiswa seyekadzi kuti uvandudze nzvimbo yekunyepedzera yemutaundi, kuderedza iyo yakanamatira yemotokari, uye inowedzera nguva yekuvhura.
Starch anaitle anowanzoshandiswa pamwe chete nemheremalose, kuitira kuti zvinhu nezvakanakira zvigadzirwa zviviri zviviri zvinowirirana. Sezvo Starch Ether zvigadzirwa zvakachipa kupfuura cellulose ether, kushandiswa kwehumwe strar ether mumotokari kuchaunza kuderedzwa kwakakura mumutengo wemutengo werufu.
2. Guar gum ether
Guar gum ether gadziriro yehunyanzvi iTher neakakosha zvivakwa, izvo zvinoshandurwa kubva mumabhandi emuchina wemugodhi. Kunyanya neiyo itserafitifitifitifitifitifitifiti yeGugu yeGum uye acrylic inoshanda boka, chimiro chine 2-hydroxyprupropyl group inoumbwa, iyo iri polygalactomannose chimiro.
. Zvivakwa zvePH Guar ana vana zvakanyatsotenderedzwa.
. Asi kuenderana, anti-sag, thixotropy uye zvichingodaro zviri pachena zvakavandudzwa.
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. Iyo haina kukanganisa simba pane iyo nguva yekuisa uye simba reGypsum Dorar.
3. Modified mineral yemvura-chengetedza iyo thickener
Iyo mvura-yekuchengetedza iyo yakakwenenzverwa yakagadzirwa nezvikanganiso zvakasikwa kuburikidza nekugadziridzwa uye kuumbwa kwakaiswa muChina. Maminerari makuru ainyora mitezo inochengetedza mvura ndeye: Bentonite, Montonite, Montonite, Mostonite, etc. Izvi zvicherwa zvine zvimwe zvekuwedzera uye nekukakavara kubudikidza nekugadziridzwa kwakadai sevamiriri vepakati. Rudzi urwu rwemvura-kuchengetedza mhezheni yakaiswa kune motsi ine maitiro anotevera.
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Dzokorora polymer rubber poda
Dzokorora rabha rabha inogadziriswa nekupedza kuoma kweanokosha polymer emulsion. Mukutonga kwekugadzirisa, kudzivirira colloid, anti-caking mumiriri, etc. iva anokwanisa kukosha. Iyo yakaomeswa rubber poda ndeye mamwe maSperical zvimedu zve80 ~ 100mm akaunganidzwa pamwechete. Izvi zvimedu zvinonyangadza mumvura uye zvinoumba kuparadzwa kwakasimba zvishoma kupfuura iyo yekutanga emulsion zvimedu. Kupararira uku kuchaita firimu mushure mekushayikwa uye kuoma. Iyi firimu haina kusarudzika sezvo iyo general emulsion firimu kugadzirwa, uye haizo dzokorora kana ichisangana nemvura. Kuparadzaniswa.
Resitispersable rabha poda inogona kukamurwa mu: Styrene-butadiene Copleneciyo, Etlyne-acitate acid Coplymer, etc. ,,, Matanho akasiyana siyana anogadzira iyo inodzikisira rabha poda ine zvivakwa zvakasiyana senge kupokana kwemvura, kushandira kweAlkali, kuramba mamiriro ekunze uye kushanduka. Ine vinyl Laurate uye Silicone, iyo inogona kuita iyo rubber poda ine yakanaka hydrophosity. Yakakura yakashongedzwa vinyl tertiary carbonate ne low tg kukosha uye kwakanaka kuchinjika.
Kana idzi mhando dzebabha yebhuruu dzinoshandiswa kune dope, vese vane kunonoka kugadzirisa nguva yekuita simende, asi simba rakanonoka idiki pane iro rekushandisa zvakananga kwemberi dzakafanana. Mukuenzanisa, styrene-butadiene ine hukuru hwakanyanya kudzoka, uye ethylene-vinyl acetate ine maitiro madiki ekudzorera. Kana iyo dosi idiki kwazvo, mhedzisiro yekuvandudza mashandiro emota haisi pachena.
Kutumira Nguva: Kubvumbi-03-2023