Soybean protein-calcium carbonate nano-adhesive as well as preparation method and application thereof

Abstract

The invention provides a soybean protein-calcium carbonate nano-adhesive as well as a preparation method and application thereof, aiming at overcoming the defects of low bonding strength and poor water resistance existing in the traditional soybean protein-calcium carbonate adhesive. The preparation method has the advantages of simple and convenient process, low production cost, no pollution and suitability to industrialized production. The adhesive can be used for bonding wood, bamboo, vines, straws and papers and other fiber materials and is convenient to apply with good bonding performance. The soybean protein-calcium carbonate nano-adhesive of the invention comprises the following components in parts by weight: 80-95 parts of soybean protein matrixes (1) and 1-15 parts of inorganic calcium carbonate particles (2) dispersed in the (1) in nano sizes.

Description

1. Technical field:

[0001] The invention relates to a soybean protein-calcium carbonate nano-adhesive and its preparation method and application, which belong to the field of polymer chemistry and physics, and also belong to the field of nano-materials. 2. Background technology:

[0002] In the 1930s, urea-formaldehyde adhesives and phenol-formaldehyde adhesives from the oil and gas industry began to be used. Bonding systems have been used in the manufacture of wood composite products since the 40's. When the hot pressing process is adopted, the hot pressing time of the formaldehyde adhesive greatly exceeds the time required for the bean gum. Industrial production of formaldehyde has steadily increased over the past 75 years. The amount of formaldehyde used in wood adhesives accounts for half of the total formaldehyde production. However, formaldehyde can cause acute respiratory problems and may also be a carcinogen. With the increase in the price of petroleum-derived sy...

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