A kind of nanowire modified unsaturated polyester resin reinforcement material and preparation method thereof

Abstract

A nanowire-modified unsaturated polyester resin reinforcement material and a preparation method thereof, comprising the following raw materials in parts by weight: 50-100 parts of unsaturated polyester, 5-10 parts of filler, 30-50 parts of diluent, modified 15-20 parts of silver nanowires, 5-10 parts of modified silicon carbide nanowires, 0.5-2 parts of initiator; the preparation method is as follows: use acetone and silane coupling agent to modify silver nanowires and silicon carbide nanowires for backup use; weigh unsaturated polyester, diluent, modified silver nanowires and modified silicon carbide nanowires in proportion, stir and mix at 10~50°C for 1~2h to obtain a resin mixture; in the above resin mixture Add 0.5~2 parts of initiator and 5~10 parts of filler in sequence, continue to stir for 1~2h and then carry out vacuum defoaming treatment to obtain nanowire modified unsaturated polyester resin reinforcement material; the unsaturated polyester prepared by the present invention The resin reinforced material has excellent mechanical properties, high strength, good heat resistance and high thermal conductivity, which can effectively improve the corrosion resistance and service life of the unsaturated polyester resin.

Description

technical field [0001] The invention relates to the field of unsaturated polyester resins, in particular to a nanowire-modified unsaturated polyester resin reinforcing material and a preparation method thereof. Background technique [0002] Unsaturated polyester resin, a linear prepolymer formed by melting polycondensation of dihydric alcohol and unsaturated dibasic acid anhydride or unsaturated dibasic carboxylic acid, saturated dibasic anhydride or saturated dibasic carboxylic acid, under heating, light, Copolymerized with vinyl monomer under the action of radiation and initiator, cross-linked and cured into a thermosetting resin with network structure. Unsaturated polyester resins have many advantages, such as easy availability of raw materials, chemical corrosion resistance, and excellent electrical and mechanical properties. Unsaturated polyester resin has long attracted people's attention due to its excellent formability and good comprehensive performance. It is widel...

AI Technical Summary

Problems solved by technology

[0003] (1) Improve the strength: 1. Synthesize a new reinforced unsaturated polyester resin by changing the chemical composition, but the cost is high, the process is complicated, and it is difficult to meet the diversified needs of the product; 2. By changing the crosslinking network of the unsaturated polyester resin structure, but the elasticity of the cross-linked network is poor, and the strength is still not greatly improved; third, a semi-interpenetrating network structure is formed, but when the external force impacts, the overall network does not undergo a large deformation, and the deformation resistance against external force is limited. ; 4. Directly add reinforcing materials to the unsaturated polyester resin system;

[0004] (2) Improve heat resistance and thermal conductivity: 1. Synthesize a new reinforced unsaturated polyester resin by changing the chemical composition, but the cost is high, the process is complicated, and it is difficult to adapt to the diverse needs of products; 2. Directly in unsaturated polyester Add materials with better thermal conductivity to the resin system