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High fire retardation unsaturated polyester molding compound

An unsaturated, molding compound technology, used in the field of thermosetting molding compounds, can solve the problem of difficult to meet the requirements of flame retardancy, and achieve the effects of excellent flame retardancy, good strength and low shrinkage

Inactive Publication Date: 2013-03-20
CHANGSHU CHIKUSHI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the trend of miniaturization and thinning of household appliances, the requirements for unsaturated polyester molding compounds are getting higher and higher. When the flame-retardant unsaturated polyester molding compounds in the prior art are used to produce thin-walled products, It is difficult to meet the requirements of flame retardancy, so it is necessary to improve it. The technical solution to be introduced below is based on this premise

Method used

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  • High fire retardation unsaturated polyester molding compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 41 parts of bisphenol A type unsaturated polyester resin with resin solid content of 60-65%;

[0026] 30 parts of polymethyl methacrylate type low-shrinkage additives with a solid content of 38-40%;

[0027] 6 parts of triallyl isocyanurate;

[0028] 0.8 parts of tert-butyl peroxybenzoate;

[0029] P-phenol 0.008 part;

[0030] 0.16 parts of magnesium oxide;

[0031] 130 parts of aluminum hydroxide;

[0032] Mixture of melamine urate and calcium carbonate,

[0033] Wherein, the mass percent of melamine urate is 55% 10 parts;

[0034] 8 parts of flame retardant masterbatch;

[0035] Zinc stearate 3.2 parts;

[0036] 28 parts of alkali-free glass fibers with a length of 3mm.

Embodiment 2

[0038] Resin solid content is 46 parts of isophthalic unsaturated polyester resins of 60-65%;

[0039] 28 parts of polymethyl methacrylate type low-shrinkage additives with a solid content of 38-40%;

[0040] 8 parts of triallyl isocyanurate;

[0041] 0.65 parts of tert-butyl peroxybenzoate;

[0042] 0.006 parts of p-phenol;

[0043] 0.5 parts of magnesium oxide;

[0044] 160 parts of aluminum hydroxide;

[0045] Mixture of melamine urate and calcium carbonate,

[0046] Wherein, the mass percent of melamine urate is 55% 15 parts;

[0047] 5 parts of flame retardant masterbatch;

[0048] Zinc stearate 2.4 parts;

[0049] 32 parts of non-alkali glass fiber with a length of 3mm.

Embodiment 3

[0051] Resin solid content is 43 parts of the bisphenol A type unsaturated polyester resin of 60-65%;

[0052] 32.6 parts of polymethylmethacrylate type low-shrinkage additives with a solid content of 38-40%;

[0053] 7 parts of triallyl isocyanurate;

[0054] 0.9 parts of tert-butyl peroxybenzoate;

[0055] P-phenol 0.009 parts;

[0056] 0.3 parts of magnesium oxide;

[0057] 140 parts of aluminum hydroxide;

[0058] Mixture of melamine urate and calcium carbonate,

[0059] Wherein, the mass percent of melamine urate is 55% 12 parts;

[0060] 7 parts of flame retardant masterbatch;

[0061] Zinc stearate 2.8 parts;

[0062] 37 parts of alkali-free glass fibers with a length of 3mm.

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Abstract

The invention relates to a high fire retardation unsaturated polyester molding compound, and belongs to the technical field of thermosetting molding compounds. The high fire retardation unsaturated polyester molding compound comprises the following raw materials, by weight, 41-46 parts of an unsaturated polyester resin, 28-32.6 parts of a low shrinkage additive, 6-9 parts of triallyl isocyanurate, 0.65-1.2 parts of an initiator, 0.006-0.011 part of a polymerization inhibitor, 0.16-0.5 part of a metal oxide, 115-160 parts of a filler, 10-15 parts of a fire retardation agent, 5-8 parts of a fire retardation master batch, 2.4-3.2 parts of a mold release agent, and 28-37 parts of 3 mm reinforcing fibers. The high fire retardation unsaturated polyester molding compound has characteristics of good strength, low shrinkage and excellent fire retardation, and can be applicable for products such as switches, household electrical appliance housings, and the like. In addition, test results show that a bending strength is 90 MPa, an impact strength is 30 KJ / m<2>, a shrinkage rate is less than 0.15%, resistance is 1*10<13> omega, an electrical strength is 12.0 MV / m, a dielectric loss factor is 0.015, electrical arc resistance is 180 s, a comparative tracking index is 600 V, and vertical burning achieves (UL-94-V-00.8mm)V-0.

Description

technical field [0001] The invention belongs to the technical field of thermosetting molding compounds, in particular to a highly flame-retardant unsaturated polyester molding compound. Background technique [0002] Unsaturated polyester molding compound has the advantages of high specific strength, good electrical properties, easy molding and processing, etc., and is widely used by people. With the trend of miniaturization and thinning of household appliances, the requirements for unsaturated polyester molding compounds are getting higher and higher. When the flame-retardant unsaturated polyester molding compounds in the prior art are used to produce thin-walled products, The flame retardancy is difficult to meet the requirements, so it is necessary to improve it, and the technical solution to be introduced below is based on this premise. Contents of the invention [0003] The task of the present invention is to provide a high flame retardant unsaturated polyester moldin...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L33/12C08K13/04C08K7/14C08K3/22C08K5/03C08K5/06C08K5/3492C08K3/26
Inventor 朱雪忠
Owner CHANGSHU CHIKUSHI MACHINERY
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