Phenolic foam plastic composite product and its production and forming process

Abstract

The present invention discloses a phenolic foam plastic composite product and its forming process. Said composite product can be composite foam sandwich plate material or pipe material (single-sided or double-sided composite), and the sandwich material of composite product adopts fire-retardant, low-toxic, low-smoke and high-temp.-resistant phenolic foams, said invention adopts low-temp. foaming method, can be applicable to continuous or intermittent production and in-situ pouring production mode of mechanical foaming machine (two components or more than two components), and the foams and various face materials combined plate materials and pipe materials can be used as sound-proofing, decorative, cold-retaining and heat-insulating materials, also can be used as wall body and roofing material of light factory building.

Description

Technical field: [0001] The invention relates to a composite product of phenolic foamed plastics and its production molding process. It belongs to the field of organic chemical materials and process technology. technical background: [0002] The core materials of the existing sound insulation, cold insulation, heat insulation and foam plastic composite products used in lightweight workshops mainly include polyurethane, polystyrene, polyethylene and other foams. Their fatal shortcomings are flammability, toxic smoke, and temperature resistance. Poor performance, etc. If the above-mentioned foam is used in public facilities with concentrated crowds, personal safety will be greatly threatened in the event of a fire, because the toxic smoke produced by the foam can suffocate people in a very short time. [0003] Phenolic foam has the characteristics of obvious flame retardancy, low toxicity, low smoke and high temperature resistance, and is a kind of high safety and environment...

AI Technical Summary

Problems solved by technology

At present, most of the phenolic foams on the market are foams produced by high-temperature foaming, and the loss is large when processed into products. For example, when processed into insulation pipes, the loss can reach 40% to 50%, which not only greatly increases the production cost. A large amount of leftover waste is a burden on the environment, and this production method cannot be continuously produced and cast on site. When it is necessary to make a sandwich panel with a surface material, another process must be added to compound the foam and the surface material, which increases the cost of production. cost and labor intensity

In recent years, data have shown that phenolic foam products produced by low-temperature foaming methods are only limited to manual foaming. This production method limits the quality and output of products.