Moisture-proof phenolic molding plastic

A technology of phenolic molding compound, moisture resistance, applied in the field of composite materials

Active Publication Date: 2016-01-13
上海欧亚合成材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a moisture-resistant phenolic molding compound with easy-to-obtain, easy-to-process and low-cost raw materials for the problems existing in the existing general-purpose phenolic molding compound.

Method used

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  • Moisture-proof phenolic molding plastic

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Embodiment Construction

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0018] The manufacturing method of the molding material of the present invention can adopt the traditional twin-roller kneading method, and also can adopt the screw extrusion method.

[0019] Before kneading or extrusion, resin binders including cardanol modified thermoplastic phenolic resin and melamine resin, urotropine curing agent and curing accelerator are superfinely pulverized in advance, and the fineness reaches more than 200 mesh, and then the The above mixture is uniformly mixed with other raw materials, heated and kneaded or extruded, and finally granulated to obtain the desired product.

[0020] Below just illustrate the present invention:

[0021] The formulation materials shown in Table 1 are pulverized, mixed and kneaded or extruded according to the aforementioned m...

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PUM

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Abstract

The invention discloses moisture-proof phenolic molding plastic prepared from cardanol-modified thermoplastic phenolic resin, solid melamine resin, hydrophobic cellulose, active mineral filler, a urotropin curing agent, a curing accelerator and a mold release. The moisture-proof phenolic molding plastic has better moisture-proofness and heat resistance. The phenolic molding plastic is prepared by taking the cardanol-modified thermoplastic phenolic resin and the solid melamine resin as binders, the hydrophobic cellulose and the active mineral powder as filler and urotropin as a curing agent and matching with the curing accelerator, so that the moisture-proof phenolic molding plastic has better moisture-proofness as comparison with universal phenolic molding plastic; in addition, the production process is simple, and the production cost is relatively low.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a moisture-resistant phenolic molding compound. Background technique [0002] Phenolic molding compound is one of the three thermosetting plastics. Due to its low cost and wide range of uses, it is especially suitable for household appliances, electrical accessories, and mechanical accessories. General-purpose phenolic molding compound is generally made of phenolic resin as binder, wood powder and mineral as filler, plus curing agent and accelerator. However, due to the hygroscopicity of phenolic resin, wood powder, and minerals, phenolic molded plastic parts have strong hygroscopic properties, causing deformation, warping, and electrical performance degradation of the material during use. Therefore, related technologies at home and abroad A lot of work has been done to improve the hygroscopicity of the material. [0003] For example, the Japanese patent No. JP20110...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/14C08L61/28C08L1/02C08K13/02C08K3/26C08K3/34
Inventor 杨小云沐霖朱永茂
Owner 上海欧亚合成材料股份有限公司
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