Olona nyango lukhanyiso lweTekhnoloji yokuThenga amanzi

1. Ingcaciso kunye nomsebenzi we-tickener

Izongezo ezinokuthi zinyuse kakhulu uVeksini of Paints ezisekwe emanzini zibizwa ngokuba zizinto ezinkulu.

Abakhulu badlala indima ebalulekileyo kwimveliso, ukugcinwa nokwakha iingubo.

Owona msebenzi ophambili we-thi chuoker kukwandisa i-viscofity ye-corating yokufezekisa iimfuno zamanqanaba ahlukeneyo okusebenzisa. Nangona kunjalo, i-viscosity efunekayo kukudibana kwinqanaba elahlukileyo yahlukile. Umz:

Ngexesha lenkqubo yokugcina, kunqweneleka ukuba ne-viscofity ephezulu ukuthintela i-pigment ukuba ihlawulwe;

Ngexesha lenkqubo yokwakhiwa, kunqweneleka ukuba ne-viscofity ephakathi yokuqinisekisa ukuba ipeyinti inobungozi obulungileyo ngaphandle kokupeyinta okukhulu;

Emva kokwakha, sinethemba lokuba i-vickosity ingabuyela ngokukhawuleza kwi-viscofity ephezulu emva kwexesha elifutshane (lenkqubo) ukuthintela ukuqhubela phambili.

I-fluity ye-faksings yomsebenzi wamanzi yiNewtonia.

Xa i-viscosity yepeyinti ihla ngokunyuka kwamandla eshishi, ibizwa ngokuba yi-pseudoplastic fluid, kwaye uninzi lwepeyinti yi-fayid ye-pseudoplastic.

Xa isimilo sokuhamba se-Pseudoplastic sihlobene nembali yayo, oko kukuthi, lixesha-lixhomekeke kwixesha, libizwa ngokuba yi-th thyropic fluid.

Xa sinemveliso yokunxiba, sihlala sizama ngengqondo ukwenza i-thringropic, njengokudibanisa iizongezo.

Xa i-Thriyotdropy yeCoating ifanelekile, inokusombulula ukungabi nakhonzakali kumanqanaba ahlukeneyo okuthuka, kwaye uhlangabezane neemfuno zobugcisa ze-viscofity eyahlukileyo yokudibana, ekwenzeni amanqanaba okomisa.

Abanye abantu abakhulu banokuyigcina ipeyinti ngeThokotropy ePhezulu, ukuze i-viscofity ephezulu yokuphumla okanye kwixabiso le-Shear eliphantsi (njengokugcinwa okanye ukuthutha), ukuze kuthintelwe i-pigment kwipeyinti yokuhlawula. Kwaye phantsi kwenqanaba lehenyukazi eliphezulu (njengenkqubo yokuhlalisa), ine-viscofity ephantsi, ukuze i-cating ihambe ngokuhamba okwaneleyo kunye nokukhubazeka.

I-Thixotropy imelwe yi-ThixitRopic Index ti kwaye ilinganiswe yi-visment visment ye-rookfield.

I-ti = i-viscosity (ilinganiswe nge-6R / min) / i-viscosity (ilinganiswe nge-60R / min)

2. Iindidi zeebhulethi kunye neziphumo zazo kwiipropathi ezikhuphayo

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Iindidi ze-inorganic ziquka i-Bentotite, i-Ascoulgite, ialuminium magnesium, i-lithium ye-lithium, njl. Njl.

Ukusuka kwimbono yempembelelo kwi-rizeologries yengubo yengubo yemirhumo, iibhulethi zahlulahlulwe zaba zizithukuthu kunye nezigadi zokunxulumana. NgokweMeko yeNtsebenzo, inani le-chickener kufuneka libe lincinci kwaye isiphumo sokuqaqamba silungile; Akulula ukuba ukhutshiwe zii-enzyme; Xa iqondo lobushushu okanye ixabiso le-pH lenkqubo liyatshintsha, i-viscosity yokuhamba komda ayizukuncitshiswa kakhulu, kwaye i-pigment kunye ne-filler ayizukuphinda isetyenziswe. ; Uzinzo oluhle lokugcina; Ukugcinwa kwamanzi kakuhle, akukho phenyane ichanekile kwaye akukho miphumo imbi kwintsebenzo yefilimu ehlekisayo.

①cellulose tickener

Ii-tickeners zeselselose zisetyenziswa kwi-cayings ikakhulu zii-methylcelupluplose, hydroxylcethylcethythylcelcethylcelcelcelcelose, kwaye ezi zimbini zisetyenziswa ngokuqhelekileyo.

I-HydroxyEtheetheetheetheetheetheethy yimveliso efunyenwe ngokutshintsha amaqela e-hydroxyl kwiiyunithi ze-glucose ye-sellyuli yendalo kunye namaqela e-hydroxyyl. Inkcazo kunye neemodeli zemveliso zipapashwe ikakhulu ngokwenqanaba lokufaka endaweni kunye novimba.

Iindidi ze-hydroxythyl seluplose zihlulwe zaba luhlobo oluqhelekileyo lokuchithwa, uhlobo lokusasazeka ngokukhawuleza kunye nohlobo lokuzinza kwebhayoloji. Ngokubhekisele kwindlela yokusetyenziswa echaphazelekayo, i-HydroxyEtheetheetheetheetheetheetheetheetheethy inokongezwa kumanqanaba ahlukeneyo kwinkqubo yemveliso yokudibana. Uhlobo lokusasazeka okukhawulezayo lunokongezwa ngokuthe ngqo kwifom yomgubo owomileyo. Nangona kunjalo, ukuxabiseka kwenkqubo yenkqubo ngaphambi kongeziweyo kufanele kube kungabi ngaphantsi kwe-7, ikakhulu kuba i-hydroxyyteethl yexabiso le-pH, kwaye ixabiso elineleyo lonyuswe ukuze linyibilike ngokukhawuleza. Amanyathelo ahambelanayo nawo anokusetyenziselwa ukulungiselela uxinzelelo oluthile lwesisombululo seglue kwaye sikongeze kwinkqubo ekhathazayo.

I-Hydroxypropyl Methylcelcelsele yimveliso efunyenwe ngokutshintsha iqela le-hluproxyl kwicandelo le-Glucose ye-Gluolose ye-Glulose yeNdlu yeNdalo, ngelixa elinye icandelo lithatyathelwe iQela le-hydroxypropy. Iziphumo zayo zokutyibilika zifana ne-hydroxyythl sellulose. Kwaye kuxhathisa ukonakaliswa kokukhohlakeleyo, kodwa ukulingana kwamanzi akulunganga njengaleyo ye-hydroxyythl ye-hydroxytethl, kwaye ineengxaki zeglasi xa ifudumele. Kwi-Hodroxypropyl ye-Hydroxypropyl Methylceltulose, inokutongelwa ngqo kumanzi xa isetyenziswa. Emva kokuvuselela kunye nokusasaza, ukongeza izinto ze-alkaline ezinjengeAmmonia amanzi ukuze kulungelelaniswe ngexabiso le-pH ukuya kwi-8-9, kwaye isukele de inyibilike ngokupheleleyo. Nge-Hydroxypropyl Methylcelcelcelsulose enonyango, inokuthi ifakwe kwaye ifakwe ngamanzi ashushu ngaphezulu kwe-85 ° C ngaphambi kokusetyenziswa, emva koko ivuselele amanzi abandayo okanye amanzi omkhenkce ukuze ayichithe ngokupheleleyo.

②inorganic tickener

Olu hlobo lwe-thi cokener ikakhulu ziimveliso eziqhotyoshelweyo, ezinjenge-Bentotite, I-Agnesium aluminum udongwe, njl njl. Inokuthintela ukungcungcutheka, kwaye kungayi kubangela ukunyathela kwamanzi kwengqungquthela. Emva kokuthiywa komile kwaye kwenziwe ifilimu, isebenza njengefilimu kwifilimu ehlekisayo, njl.

③ I-Polymer ye-pickener

Izizwe zePolymeticatic isetyenziswa kakhulu kwi-Acrylic kunye nePolylingthane (i-thickelers). Iziqwenga ze-acrylic uninzi lwee-thelymers ze-acrylic ezinamaqela e-carboxyl. Emanzini ngexabiso le-PH 8-10, i-carboxyl yeqela iqhekeza kwaye idumbe; Xa ixabiso le-p put lingaphezulu kwe-10, inyibilikisa emanzini kwaye ilahlekelwa sisiphumo sokuqaqamba, ke isiphumo sobukhulu buthambe kakhulu kwixabiso le-pH.

Indlela yokuthambisa ye-tickener ye-acrylate kukuba amasuntswana awo anokuqinisekiswa kumphezulu wamasuntswana asemva, aze anyuse ivolumu yamasuntswana, kwaye aphakamise i-alkali yamasuntswana, kwaye anyuse i-viscofity yenkqubo yepeyinti. ; Okwesibini, ukudumba kwe-thi chukener yonyusa i-viscosity yesigaba samanzi.

(2) Impembelelo ye-tickener kwipropathi ekhuphayo

Iziphumo zohlobo lwe-thickener kwipropathi ye-riheologic yothihoqo yile ilandelayo:

Xa inani lenani likaThi cokener liyanda, i-viscosity ye-staticosity yepeyinti inyuka kakhulu, kwaye i-viscosity yokutshintsha okungaguqukiyo xa iphantsi kwamandla angaphandle.

Ngempembelelo ye-tickener, i-viscosity yepeyinti yetsia ngokukhawuleza xa iphantsi kwamandla e-Shear, ebonisa iPseudoplastity.

Sebenzisa i-sell ye-hydrophose tickener (njenge-EBS451FQ), kumaxabiso ase-Shear ephezulu, i-viscosity isephezulu xa imali inkulu.

Sebenzisa i-Polyciethane ye-Polyrethane (enje nge-WT105A), kumazinga amachiza aphezulu, i-viscosity isephezulu xa imali inkulu.

Sebenzisa i-acrylic thiyilic (njenge-ASE60), nangona i-vissosity ye-furcofity iphakama ngokukhawuleza xa imali inkulu, i-viscosity inciphisa ngokukhawuleza kwinqanaba le-Shear.

I-3. I-tickener yobugcisa

(1) Indlela yokuthambisa

I-SelerUlose Ether kunye ne-Alkali-Swellec Sullagers inokuziqhelanisa nesigaba samanzi, kodwa ayinasiphumo sokupeyinta esinepeyinti, ke i-suclology yepeyinti ayinakulungiswa.

Iziqwengana zokunxulumana ziphawulwa kuloo nto ukongeza ekuthatheni i-hydration, nazo ziyahambelana ngokunxulumana nabantu, kunye namanye amacandelo kwinkqubo. Olu buthongo luzikhupha kumazinga amachiza aphezulu kunye nokunxulumana kwakhona kumaxabiso asezantsi asezantsi, avumela i-RUOOOOOOOLOGLO YOBUCHULE UKUZE KUFUNYANWE.

Indlela yokuthambisa ye-tickener yobuntu kukuba i-molekyuli yayo ingumtya we-hydrophilic ye-hydrophilic, i-polymer edityanisiweyo ngamaqela aseLipophilic kwiziphelo zombini, oko kukuthi, ineempawu zemolekyuli. indalo. Imolekyuli enjalo i-thi choener ayinakuphela i-hydrate kuphela kwaye idumbele ukuba ikhule isigaba samanzi, kodwa ikwakhetha imiluks xa uxinzelelo lwesona sisombululo sidlula sidlula ixabiso elithile. Imilebezi inokunxulumana namasuntswana ePolymer ye-Emolsion kunye ne-pigments amasuntswana avumelekileyo ukuba asasazeke ngokwenethiwekhi yenethiwekhi, kwaye adityanisiwe kwaye athambekele ukwandisa i-viscofity yenkqubo.

Eyona nto ibaluleke kakhulu kukuba le mibutho ikwimeko yokulinganisa eguqukayo, kwaye ezo mizimba zihambelana nazo zinokuhlengahlengisa izikhundla zazo xa ziphantsi kwamandla angaphandle, ukuba ukungqubana kuncipha. Ukongeza, kuba imolekyuli ineemodeli ezininzi, olu lwakhiwo lunciphisa utyekelo lweemolekyuli zamanzi ukuba zifudukele kwaye ke zongeza i-viscofity yesigaba se-ACTEAGE.

(2) Indima kwi-cactors

Uninzi lwee-curickers ze-polyurethanes, kwaye iimolekyuli zazo zemolekyuli ziphakathi kwe-103-104 ii-odolo zobukhulu, ii-odolo ezimbini zobukhulu obuphantsi kune-rolyacyric acid kunye ne-tickenes eziqhelekileyo eziphakathi kwe-105-106. Ngenxa yobunzima bemolekyuli ephantsi, ukunyuka kwesandi esisebenzayo emva kokuRhafu kuncinci, ke ijikajika layo le-viscosity ligculelo kunelo lamanzi angalingani.

Ngenxa yobunzima obuphantsi be-tickener ephantsi, i-premolam ye-Intermolam kwiSigaba samanzi silinganiselwe, ke isiphumo sayo sokuqaqamba kwinqanaba lamanzi asibalulekanga. Kumgangatho weqonga lomhlaba ophantsi, ukuguqulwa kombutho phakathi kweemolekyuli zingaphezulu kwemolekyuli phakathi kweemolethi, yonke inkqubo igcina ukumiswa kwendalo kunye ne-viscofity, kwaye i-viscosity isondele kwi-viscosity yendawo yokusasazwa (amanzi). Ke ngoko, i-thickeer yonxulumatshi yenza ukuba inkqubo yepeyinti esekwe emanzini ibonisa i-viscofity ebonakalayo xa ikwindawo yereyithi ye-Shear.

Iziqwengana zokunxulumana ziyakonyusa amandla anokubakho phakathi kweemolekyuli ngenxa yoMbutho phakathi kwamasuntswana kwinqanaba elisasazwayo. Ngale ndlela, amandla amaninzi kuyafuneka ukwaphula umanyano phakathi kweemolekyuli kumazinga amaSheri, kunye nomthombo wesherafu kufuneka ifezekise umthambo ofanayo. Ukubonakala kubonakaliso. I-viscosity ephezulu ye-shear ephezulu kunye ne-shear ye-shear ephantsi inokwenza nje ukunqongophala kweempawu eziqhelekileyo zepeyinti, oko kukuthi, iicuba ezimbini zingasetyenziswa ngokulungelelanisa uhlengahlengiso lwepeyinti ye-upex. Umsebenzi oguquguqukayo, ukuhlangabezana neemfuno ezibanzi zokudibana kwifilimu emdaka kunye nokuhamba kwefilimu.