Paint knowledge | brief introduction of thickeners for Waterborne Coatings

It is suggested that cellulose ether and its derivatives, associated alkali swelling thickener and polyurethane thickener are commonly used at present At present, cellulose ether and its derivatives are mainly hydroxyethyl cellulose, methyl hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, methyl hydroxypropyl cellulose and so on Hydrophobically modified cellulose is a kind of associative thickener by introducing a small amount of long-chain hydrophobic alkyl group on the hydrophilic framework of cellulose, such as natrosolplusgrade330, 331, cellosizesg-100, etc its thickening effect can be relatively separated Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Home of coatings news: at present, the commonly used thickeners are cellulose ether and its derivatives, associated alkali swelling thickener and polyurethane thickener At present, cellulose ether and its derivatives are mainly hydroxyethyl cellulose, methyl hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, methyl hydroxypropyl cellulose and so on Hydrophobically modified cellulose introduces a small amount of long-chain hydrophobic alkyl on the hydrophilic framework of cellulose, thus it becomes an associated thickener, such as natrosolplusgrade330, 331, cellosizesg-100, etc its thickening effect can be comparable with that of cellulose ether thickener with much higher molecular weight Alkali swelling thickeners can be divided into two types: non associated alkali swelling thickeners and associated alkali swelling thickeners Elements has developed associative alkali swelling thickener without VOC and APEO, such as rheolate 125 Polyurethane thickener and hydrophobically modified non polyurethane thickener are water-soluble polymers of ethoxy polyurethane modified by hydrophobic group, which belong to non-ionic Association thickener The development of environmentally friendly associated polyurethane thickeners has been paid more attention For example, rheolate 210, borchigel0434, tegoviscoplus 3010, 3030 and 3060 are all associated polyurethane thickeners without VOC and APEO Byk-425 is a urea modified polyurethane thickener without VOC and APEO In addition to the linear association type polyurethane thickener described above, there are comb type association type polyurethane thickener Modified polyurea thickener is developed by BYK company Its thickening mechanism is not only hydrogen bonding, but also end group association Compared with other thickeners, it has good anti settling and anti sagging properties Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,