Low-shrinkage unsaturated polyester resin/concrete composite board and preparation method thereof

Abstract

The invention provides a low-shrinkage unsaturated polyester resin / concrete composite board and a preparation method thereof. The low-shrinkage unsaturated polyester resin / concrete composite board isprepared from 30-35 parts of aluminate cement, 10-20 parts of natural aggregate, 20-30 parts of resin aggregate, and 40-45 parts of glass beads. The preparation method comprises the steps: firstly, mixing unsaturated polyester resin, a nano silver antibacterial agent, filler, a low shrinkage agent, a diluent, and an initiator to prepare the resin aggregate, evenly mixing the resin aggregate with the natural aggregate and the glass beads, spreading a layer of cement slurry and a glass fiber mesh I in a mold, spreading the aggregate mixture on the glass fiber mesh I, laying a glass fiber mesh IIafter leveling, then pouring the rest of the cement slurry on the glass fiber mesh II, and removing the mold after standing for 24 hours to obtain the light-weight low-shrinkage unsaturated polyesterresin / concrete composite board. The prepared composite board can meet the sound insulation effect and achieve the flame retarding purpose, and has certain electrical insulation, thereby ensuring thesafety of use.

Description

technical field [0001] The invention relates to the field of unsaturated polyester resin, in particular to a low-shrinkage unsaturated polyester resin / concrete composite board 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 widely...

AI Technical Summary

Problems solved by technology

Due to the disadvantages of unsaturated polyester, such as poor toughness, low strength, easy burning and large shrinkage, the scope of its application in building panels is limited.

In the prior art, people use various excellent characteristics of artificial stone materials to compound with other materials such as ceramic substrates, cement concrete substrates, wood substrates, plastics and other organic material substrates to obtain composite panels that have the advantages of composite substrates. The composite method Both artificial stone panels and substrates of other materials are bonded together with adhesives. The problems in this method are: the joint is not firm, and the product will be degummed when it is rapidly cooled or heated or in the presence of water. The phenomenon of hollowing; fire prevention, noise prevention, and corrosion resistance are poor, and the sound insulation and fire prevention effects cannot be achieved when used in buildings, which limits its scope of use.