1. Ihe na-eme ka ihe dị arọ nke na-adịghị n'ime ahụ sie ike
Ihe a na-ejikarị eme ihe bụ bentonite organic, nke ihe mejupụtara ya bụ montmorillonite. Ọdịdị pụrụ iche ya nwere ike inye mkpuchi ahụ ike pseudoplasticity, thixotropy, nkwụsi ike na mmanụ ọkụ. Ụkpụrụ nke ịka nká bụ na ntụ ahụ na-amịkọrọ mmiri ma na-aza iji mee ka mmiri sie ike, ya mere o nwere ụfọdụ ihe nchekwa mmiri.
Ihe ndị na-adịghị mma bụ: usoro mmiri na-adịghị mma na arụmọrụ nhazi, ọ dịghị mfe ịgbasa ma tinye.
2. Cellulose
Ihe a na-ejikarị eme ihe bụ hydroxyethyl cellulose (HEC), nke nwere arụmọrụ dị elu nke ịcha kpụmkpụ, ezigbo nkwụsịtụ, mgbasa na ihe ndị na-ejide mmiri, karịsịa maka ime ka mmiri sie ike.
Ihe ndị na-adịghị mma bụ: mmetụta nke iguzogide mmiri nke mkpuchi ahụ, enweghị ezigbo arụmọrụ mgbochi ebu, na arụmọrụ nhazi adịghị mma.
3. Acrylic
A na-ekewa ihe ndị na-eme ka ihe dị arọ nke acrylic sie ike n'ụdị abụọ: ihe ndị na-eme ka ihe dị arọ nke acrylic alkali dị ike (ASE) na ihe ndị na-eme ka ihe dị arọ nke acrylic alkali dị ike (HASE).
Ụkpụrụ nke acrylic acid alkali-swellable thickener (ASE) bụ ikewapụ carboxylate mgbe pH gbanwere ka ọ bụrụ alkaline, ka a na-agbatị usoro molekul site na helical gaa na mkpanaka site na isotropic electrostatic repulsion n'etiti carboxylate ions, na-eme ka viscosity nke usoro mmiri dịkwuo mma. Ụdị thickener a nwekwara arụmọrụ dị elu nke thickening, ike pseudoplasticity na ezigbo nkwụsịtụ.
Ihe mkpuchi alkali-swellable (HASE) nke a na-ejikọta na-ewebata otu hydrophobic dabere na ihe mkpuchi alkali-swellable nkịtị (ASE). N'otu aka ahụ, mgbe a na-agbanwe pH ka ọ bụrụ alkaline, ihe mgbochi electrostatic nke otu nwoke na nwanyị n'etiti ion carboxylate na-eme ka agbụ molekul na-agbatị site na ọdịdị helical ruo na ọdịdị mkpanaka, nke na-eme ka viscosity nke usoro mmiri dịkwuo elu; otu hydrophobic ewebatara na isi agbụ nwere ike ijikọ ya na ihe ndị dị na latex iji mee ka viscosity nke usoro emulsion dịkwuo elu.
Ihe ọghọm dị na ya bụ: ọ na-enwe mmetụta na pH, enweghị mmiri zuru oke na ọkwa nke ihe nkiri agba, ọ dị mfe ịka mma mgbe emechara ya.
4. Polyurethane
Polyurethane associative thickener (HEUR) bụ polymer polyurethane nke a gbanwere site na ethoxylated mmiri-soluble polyurethane, nke bụ nke ihe na-eme ka ... ghara ịdị mma. O nwere akụkụ atọ: ntọala hydrophobic, yinye hydrophilic na ntọala polyurethane. Ntọala polyurethane na-agbasa na mmiri agba, agbụ hydrophilic na-adịkwa ike n'oge mmiri. Ntọala hydrophobic na-ejikọta ya na usoro hydrophobic dị ka ihe ndị na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe dị n'ime mmiri dị ka latex, surfactants, na pigments, na-emepụta usoro netwọk atọ, iji mezuo ebumnuche nke ịcha.
A na-amata ya site na oke ọkpụrụkpụ nke usoro emulsion, arụmọrụ dị mma na nhazi ọkwa, arụmọrụ dị mma nke oke ọkpụrụkpụ na nchekwa viscosity kwụsiri ike, na enweghị oke pH; ọ nwekwara uru doro anya na iguzogide mmiri, gloss, nghọta, wdg.
Ihe ndị na-adịghị mma bụ: na sistemụ viscosity dị n'etiti na nke dị ala, mmetụta mgbochi-ịda mbà n'obi na ntụ adịghị mma, ihe ndị na-agbasa na ihe mgbaze na-emetụtakwa mmetụta nke ịka njọ ngwa ngwa.
Oge ozi: Disemba-29-2022