Silver nanowire/unsaturated polyester resin nanocomposite material and preparation method thereof

Abstract

The invention discloses a silver nanowire / unsaturated polyester resin nanocomposite material. The silver nanowire / unsaturated polyester resin nanocomposite material comprises the following components:unsaturated polyester resin, an initiator, a filler, a diluent, modified silver nanowires and a modified anti-aging auxiliary agent. A preparation method of the silver nanowire / unsaturated polyesterresin nanocomposite material comprises the following steps: uniformly mixing the unsaturated polyester resin, the diluent and the modified silver nanowires by stirring, then adding the initiator, thefiller and the modified anti-aging auxiliary agent, stirring, then performing vacuum defoamation to obtain the silver nanowire / unsaturated polyester resin nanocomposite material. Through addition of the modified silver nanowires, the heat-conducting effect of the unsaturated polyester resin can be effectively improved; through addition of the filler, the strength and wear resistance of the unsaturated polyester resin can be further enhanced; through addition of the modified anti-aging auxiliary agent, the anti-aging performance and the ultraviolet radiation resistance of the unsaturated polyester resin are improved and the unsaturated polyester resin is unlikely to age and yellow; the composite material has the characteristics of good heat conductivity, a simple preparation technology andthe like and can be applied to the fields of automobiles, wind power, high-speed rails, yachts, construction, shipbuilding and the like.

Description

technical field [0001] The invention relates to the technical field of unsaturated polyester resin, in particular to a silver nanowire / unsaturated polyester resin nanocomposite material and a preparation method. 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; [0003] 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. I...

AI Technical Summary

Problems solved by technology

[0004] However, when unsaturated polyester resin is used for insulating materials, it has disadvantages such as poor toughness, low strength, and large shrinkage after curing, especially poor heat resistance and thermal conductivity, which limit its application in special fields. The modification of heat resistance and thermal conductivity of polyester resin can meet its application in aviation, shipbuilding and other fields. At present, there are mainly the following ways to improve the thermal conductivity of unsaturated polyester resin: (1) by changing the chemical Composition and synthesis of new reinforced unsaturated polyester resin, but the cost is high, the process is complicated, and it is difficult to meet the diversified needs of products; (2) directly add materials with better thermal conductivity to the unsaturated polyester resin system,

[0005] By directly adding inorganic fillers with high thermal conductivity, such as aluminum nitride, boron nitride, aluminum oxide, magnesium oxide, etc., to the resin system, the defect of low thermal conductivity of the resin material can be effectively improved, but usually it needs to be filled more More content can form an effective heat conduction network, and more filler additions also lead to a significant decline in the mechanical and processing properties of the composite material;