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Low-density, high-flame retardation and high-weatherability bulk molding compound and application thereof

A slug molding compound, high flame retardant technology, used in high flame retardant, high weather resistance slug molding compound, low density field, can solve the problem of immature composition control synthesis technology, unable to put into mass production, not suitable for molding process, etc. problem, to achieve the effect of high strength, high weather resistance and low density

Inactive Publication Date: 2016-10-12
JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a new type of inorganic non-metallic filler, hollow ceramic microspheres have been widely used in many fields. However, due to the lack of research on the characteristics of hollow glass microspheres, the controlled synthesis technology of its components is immature, and it cannot be put into large-scale production. , and considering the small pressure range and brittleness of the hollow glass microspheres, it is not suitable for the molding process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A bulk molding compound with low density, high flame retardancy and high weather resistance, prepared from the following raw materials in parts by weight, specifically: 65 parts of isophthalic resin, 35 parts of low shrinkage agent PVAc / St copolymer, curing agent 1.0 parts of TBPB, 0.5 parts of curing agent TBPO, 5 parts of liquid release agent W9020, 40 parts of hollow ceramic microspheres, 3 parts of antioxidant 626, 3 parts of antioxidant UV light absorber UV-531, 5 parts of color paste, inorganic flame retardant Mineral filler aluminum hydroxide 250 parts, 12mm glass fiber 100 parts.

Embodiment 2

[0020] A bulk molding compound with low density, high flame retardancy and high weather resistance, prepared from the following raw materials in parts by weight, specifically: 52 parts of isophthalic resin, 48 parts of low shrinkage agent PVAc / St copolymer, curing agent 1.0 parts of TBPB, 0.5 parts of curing agent TBPO, 5 parts of liquid release agent W9020, 30 parts of hollow ceramic microspheres, 3 parts of antioxidant 626, 3 parts of antioxidant UV light absorber UV-531, 5 parts of color paste, inorganic flame retardant Mineral filler aluminum hydroxide 250 parts, 12mm glass fiber 100 parts.

Embodiment 3

[0022] A bulk molding compound with low density, high flame retardancy and high weather resistance, prepared from the following raw materials in parts by weight, specifically: 70 parts of isophthalic resin, 30 parts of low shrinkage agent PVAc / St copolymer, curing agent 1.0 parts of TBPB, 0.5 parts of curing agent TBPO, 5 parts of liquid release agent W9020, 55 parts of hollow ceramic beads, 3 parts of antioxidant 626, 3 parts of antioxidant UV light absorber UV-531, 5 parts of color paste, inorganic flame retardant Mineral filler aluminum hydroxide 250 parts, 12mm glass fiber 100 parts.

[0023] The formula of the above-mentioned embodiment 1 is prepared into a bulk molding compound by the following method, and the steps are as follows:

[0024] (1) Surface treatment of hollow ceramic microbeads: make silane coupling agent h-151 into an aqueous solution in a ratio of 1:1 by weight, stir evenly and drop into dried hollow ceramic microbeads, stir for 40- 60 minutes, so that th...

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Abstract

The invention discloses a low-density, high-flame retardation and high-weatherability bulk molding compound and an application thereof. Preparation raw materials of the bulk molding compound comprise high pressure-resistant hollow ceramic beads used as a filling material, unsaturated resin, a low shrinkage agent, a curing agent, a mold lubricant, an antioxidant, a color paste, an inorganic flame retardation filler and glass fibers according to an appropriate ratio, so the density of the above product is reduced, the insulating property, the fireproof property, the rigidity and the hardness of the compound are improved, and the compound has high strength, low density, high weatherability, can be widely applied to the field of integrated ceiling gusset plates and other fields, solves very large technical problems, and has economic and social values.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a low-density, highly flame-retardant, high-weather-resistant bulk molding compound and its application. Background technique [0002] Bulk molding compound (BMC) is a thermosetting composite material mixed with unsaturated polyester resin, functional additives, curing agent, mineral filler and chopped glass fiber. Its molding pressure and molding temperature are both low, which can reduce the investment cost of equipment and molds, and is suitable for processing large-scale components with complex configurations. Because of its excellent electrical properties, mechanical properties, heat resistance, and chemical corrosion resistance, it can meet the performance requirements of various products and has a relatively wide range of applications. At present, the main growth point of BMC is in the automobile manufacturing industry, but the density of conventional BMC is about (1.8-2....

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L31/04C08K13/06C08K9/10C08K9/06C08K7/24C08K3/22C08K7/14
CPCC08L67/06C08K2201/003C08L2201/02C08L31/04C08K13/06C08K9/10C08K9/06C08K7/24C08K2003/2227C08K7/14
Inventor 鲁平才赵钎张伟
Owner JIANGSU ZHAOJUN NEW MATERIAL CO LTD
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