Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acrylic acid grafted polyvinyl alcohol enhancer, and preparation method and application thereof
The invention discloses an acrylic acid grafted polyvinyl alcohol enhancer, and a preparation method and application thereof. The preparation method comprises the following steps: adding 0.1-1 part of polyvinyl alcohol into 4-10 parts of water, and heating at 60-90 DEG C for 1-5 hours to gelatinize the polyvinyl alcohol; and adding 1-5 parts of acrylic acid, adding alkali to regulate the pH value to 7-8, adding 0.01-0.1 part of initiator, and reacting at 60-90 DEG C for 2-6 hours to obtain the acrylic acid grafted polyvinyl alcohol enhancer. The polyvinyl alcohol chain used as the framework is grafted with the polyacrylic acid branched chain with certain flexibility to form the block macromolecular structure with branched chain, so that the prepared enhancer has better enhancement effect; and the nano glaze slip with the enhancer can not easily crack after being applied to the ceramic billet surface. The enhancer has small influence on the viscosity and flowability of the glaze slip, so the glaze thickness on the billet surface can not be influenced when the traditional glazing method is adopted.
Acrylic acid grafted polyvinyl alcohol enhancer, and preparation method and application thereof
The invention discloses an acrylic acid grafted polyvinyl alcohol enhancer, and a preparation method and application thereof. The preparation method comprises the following steps: adding 0.1-1 part of polyvinyl alcohol into 4-10 parts of water, and heating at 60-90 DEG C for 1-5 hours to gelatinize the polyvinyl alcohol; and adding 1-5 parts of acrylic acid, adding alkali to regulate the pH value to 7-8, adding 0.01-0.1 part of initiator, and reacting at 60-90 DEG C for 2-6 hours to obtain the acrylic acid grafted polyvinyl alcohol enhancer. The polyvinyl alcohol chain used as the framework is grafted with the polyacrylic acid branched chain with certain flexibility to form the block macromolecular structure with branched chain, so that the prepared enhancer has better enhancement effect; and the nano glaze slip with the enhancer can not easily crack after being applied to the ceramic billet surface. The enhancer has small influence on the viscosity and flowability of the glaze slip, so the glaze thickness on the billet surface can not be influenced when the traditional glazing method is adopted.
Acrylic acid grafted polyvinyl alcohol enhancer, and preparation method and application thereof
WANG BIN (Autor:in) / XIE YIPENG (Autor:in) / ZHANG WEI (Autor:in) / HUANG YUEWEN (Autor:in) / FANG TIANYONG (Autor:in) / LIANG CAIZHEN (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
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