Silicone-modified high-fouling-resistance unsaturated polyester resin and its synthesis method

Abstract

The invention provides organic silicon-modified high-pollution resistance unsaturated polyester resin. The resin is prepared from flexible unsaturated polyester matrix resin R1 containing organic silicon structure units and rigid unsaturated polyester matrix resin R2 not containing organic silicon structure units, wherein the weight ratio of the flexible unsaturated polyester matrix resin R1 to the rigid unsaturated polyester matrix resin R2 ranges from 0.2:1 to 0.5:1. The invention further provides a synthesizing method of the resin. The resin not only has the excellent water resistance and pollution resistance, but also has the excellent mechanical property.

Description

technical field [0001] The invention belongs to the field of polymer compound synthesis, and in particular relates to an organosilicon-modified high-fouling-resistance unsaturated polyester resin and a synthesis method thereof. Background technique [0002] Unsaturated polyester resin is an important matrix material for resin-based composite materials. It has the advantages of good mechanical properties, rapid curing at room temperature, high hardness, and low cost. Applications. However, the unsaturated polyester resin molecular chain contains a large number of polar ester groups, as well as a small amount of terminal hydroxyl and carboxyl groups, resulting in high water absorption and poor anti-fouling properties of the resin. [0003] In the past ten years, unsaturated polyester resin has been widely used in the production of various artificial stone products, such as solid surface products, artificial granite products, and artificial quartz stone products. Compared wit...

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Problems solved by technology

[0006] Traditional organosilicon modification methods require the use of a high proportion of organosilicon units, resulting in high cost and reduced mechanical properties of the modified resin, while additive-type organosilicon additives have certain mobility, and are resistant to water and dirt during use. Declining sex and not friendly to the environment

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