Acid-base reversible crosslinking organic silicon resin and preparation method thereof

Abstract

The invention relates to acid-base reversible crosslinking organic silicon resin and a preparation method thereof. The preparation method comprises the following steps: dissolving an organic silicon prepolymer and a compounding containing an acid-base reversible gene in a mass ratio of 100: 1 to 100: 3 in a diluent; and adding 0.5-10wt per mill of a catalyst to carry out room temperature reactionfor 0.1-24h to obtain the acid-base reversible crosslinking organic silicon resin. The reversible crosslinking function of the organic silicon resin is achieved by means of the characteristic of the acid-base reversible gene, and the purpose of recovering the organic silicon resin without pollution is achieved. In addition, the acid-base reversible crosslinking organic silicon resin can be formedby means of processing means such as an additive manufacturing technology and mold pressing.

Description

technical field

[0001] The invention belongs to the modification field of organic silicon resin, and in particular relates to an acid-base reversible crosslinking organic silicon resin and a preparation method thereof. Background technique

[0002] Silicone resin is a polyorganosiloxane with a highly cross-linked network structure. It is widely used in national defense, military, electrical Industry, light industrial products, food hygiene and other industries play an irreplaceable role. From the perspective of environmental protection, the excellent thermo-oxidative stability and anti-mold performance of silicone resin make it difficult to decompose naturally. Even though some silicone resins can be recycled as toughening modifiers for other resins, most silicone resins have not been effectively recycled. With the wide application of silicone resin, it has become another source of environmental pollution. Contents of the invention

[0003] The object of the present inv...

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