Wanhua Chemical Group Co., Ltd.

Wanhua Chemical (Guangdong) Co., Ltd.

Yuyang Cao

Zhen Wang

Xueshun Ji

Jiakuan Sun

Bin Zhang

Yunquan Jin

Yunling Liu

Weiguo Zhao

Haimei Wang

Tianwen Zhou

Cuicui Wang

Xundi Yin

Rubao Shen

A self-crosslinkable polyurethane or polyurethane-urea aqueous dispersion, a preparation method therefor, and a use thereof. Side chains of the polyurethane or polyurethane-urea contain non-sterically-hindered siloxy groups. During the drying and activation of the aqueous dispersion, the siloxys in the side chains are hydrolyzed and crosslinked with each other to increase the cross-linking density, significantly improving the heat resistance, the humidity resistance, and other properties of an adhesive obtained therefrom. The aqueous dispersion itself has a good stability. In addition, an application system based thereon has an excellent stability and a long storage time. The aqueous dispersion is suitable for the preparation of high quality paints and sealants, especially adhesives.

Polyurethane or polyurethane-urea aqueous dispersion, preparation method therefor, and use thereof

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Shandong, China

Yuyang Cao