01 Thickener thickener: Tom qab yaj los yog dispersed hauv dej, nws tuaj yeem ua rau kom cov viscosity ntawm cov kua thiab ua kom muaj qhov ruaj khov hydrophilic polymer compound hauv lub cev. Cov qauv molecular muaj ntau pawg hydrophilic, xws li -0H, -NH2, -C00H, -COO, thiab lwm yam, uas tuaj yeem h...
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