Phenolic foam composite insulation material and production method thereof

Abstract

The invention relates to a phenolic foam composite insulation material and a production method thereof. The insulation material comprises phenolic foam and lightweight particles, wherein the lightweight particles uniformly disperse in a phenolic foam matrix and are mutually spaced, and the phenolic foam and the lightweight particles are closely integrated together. The production method for the insulation material comprises the steps of uniformly mixing A-stage resin, a surfactant, a foaming agent and a toughening agent, adding the lightweight particles, carrying out uniform mixing, adding a curing catalyst and carrying out foaming and curing molding after uniform mixing. The insulation material provided in the invention has excellent thermal insulation performance and fireproof performance and good mechanical strength.

Description

Technical field: [0001] The invention relates to a non-combustible thermal insulation material and a production method thereof, which can be used for thermal insulation of factory pipes and equipment, vehicles and ships, and buildings, and belongs to the category of thermal insulation materials. technical background: [0002] In addition to the extensive use of thermal insulation materials in the fields of factory pipes and equipment insulation, vehicles and ships, with the improvement of people's living standards and the improvement of energy conservation and emission reduction requirements, the requirements for thermal insulation materials are also increasing, especially for building exterior wall insulation. It is of great significance to improve people's working and living conditions, save energy and reduce greenhouse gas emissions. At present, the building exterior wall insulation materials used in China are mainly organic insulation materials such as expandable polysty...

AI Technical Summary

Problems solved by technology

At present, the building exterior wall insulation materials used in China are mainly organic insulation materials such as expandable polystyrene foam boards, expanded polystyrene boards, and rigid polyurethane foam boards. These insulation materials have good insulation effects, but this type of organic insulation materials Insulation materials generally have the common weakness of being easy to burn, producing toxic and harmful gases when burning, heavy smoke, burning dripping phenomenon, and poor safety. Fires occur no matter in the process of building construction or in normal use. pose a threat to the safety of people's lives and property

In order to overcome the above shortcomings, the usual method is to add flame retardants in the process of processing. By adding flame retardants, the fire performance of thermal insulation materials can only be improved to a limited extent, but the characteristics of high smoke density and burning dripping cannot be changed, which cannot solve the problem. The combustion and burning spread of this kind of insulation materials also significantly increase the cost of insulation materials

[0003] Another commonly used inorganic insulation material such as rock wool insulation board, expanded perlite or vitrified microbead insulation mortar, although this type of insulation material has the characteristics of non-combustibility, its insulation effect is far lower than that of organic insulation materials. To achieve the same thermal insulation effect, it is necessary to increase the thickness of the thermal insulation layer, because of its heavy weight, it will increase the load of the building, and the water absorption of inorganic thermal insulation materials also affects the service life

In recent years, phenolic foam building insulation materials such as phenolic resin foam and phenolic resin foam composite board have appeared at home and abroad. This is the only organic thermal insulation material that does not need to add any flame retardants and has excellent fire resistance. Combustibility, low smoke, high temperature resistance, long-term non-aging, stable size, and excellent thermal insulation performance, but the mechanical strength of phenolic foam insulation materials is low, and the surface of the material is easily pulverized after being stressed, which limits this. The use of thermal insulation materials, although the mechanical strength of the material has been improved by adding a toughening agent, it is still not ideal, and people continue to explore ways to improve the mechanical strength of phenolic resin foam

Some phenolic resin foam composite insulation materials involve many kinds of raw materials, have strict requirements on raw materials, and the production process is complicated, which is not conducive to popularization and application.