Halogen-free environmentally-friendly phenolic moulding plastic

Abstract

The invention provides a halogen-free environmentally-friendly phenolic moulding plastic and belongs to the technical field of high-polymer materials. The halogen-free environmentally-friendly phenolic moulding plastic is prepared from the following raw materials in parts by weight: 47.5-54.2 parts of phenolic resin, 3-5 parts of flexibilizer, 2.5-5.8 parts of curing agent, 1.2-2.3 parts of curing accelerator, 1.4-2.3 parts of demoulding agent, 5.4-7.8 parts of phosphate, 47-56 parts of filler, 19-26 parts of reinforced fibers, and 0.6-1.1 parts of carbon black. The halogen-free environmentally-friendly phenolic moulding plastic has the characteristics of being good in thermal resistance and flame retardance, high in strength, and environmentally-friendly, and can achieve the bending strength of 90-110MPa, the thermal deformation temperature of 215-228 DEG C, the flame retardance property of UL-94-V-0 level (3mm), and the gap impact strength of 3-4kj / m<2>.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free environment-friendly phenolic molding compound. Background technique [0002] Phenolic resin is obtained by polycondensation reaction of phenol and formaldehyde under an acid catalyst, and various materials with practical application value can be made by adding other necessary components. With the frequent occurrence of fires, people have found that traditional halogen flame retardants have many shortcomings. The smoke released during combustion is detrimental to environmental protection and human health. After the products are discarded, the harmful flame retardants in the products will spread to the environment along with the products. Cause damage to water bodies, soil and other environments. The usual practice is to control the content of halogen added to the material, that is, the content of halogen is usually controlled at 900ppm, but p...

AI Technical Summary

Problems solved by technology

With the frequent occurrence of fires, people have found that traditional halogen flame retardants have many shortcomings. The smoke released during combustion is detrimental to environmental protection and human health. After the products are discarded, the harmful flame retardants in the products will spread to the environment along with the products. cause damage to water bodies, soil and other environments

The usual practice is to control the content of halogen added to the material, that is, the content of halogen is usually controlled at 900ppm, but practice has proved that this addition is difficult to show a satisfactory balance between flame retardancy and environmental protection

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