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Low volatile polyester molding compound and preparation method thereof

A low-volatile, molding compound technology, applied in the field of composite insulating materials, can solve problems such as irritation, environmental hazards, and volatile, and achieve the effects of reducing content, reducing pollution, and reducing volatile content

Active Publication Date: 2010-02-03
无锡新宏泰电器科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyester molding compound is widely used in industrial and agricultural production and daily life because of its good rigidity, flexibility, resilience, corrosion resistance and weather resistance. However, it is indispensable as a polyester molding compound One of the materials——monomer styrene is a dangerous chemical substance, which not only stimulates and anesthetizes the eyes and upper respiratory tract mucous membranes, but long-term exposure can also lead to neurasthenia, pulmonary obstructive lesions, and even cancer ; More importantly, the monomer styrene is extremely volatile in polyester molding compounds, which can easily pollute air, soil and water, and is extremely harmful to the environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Proportioning raw materials according to the following parts by weight:

[0041] 60 parts of ortho-phthalic unsaturated polyester resins with a solid content of 70%, 40 parts of granular low-shrinkage additives, 1.0 parts of tert-butyl peroxybenzoate (purity 98%) at 104 °C with a half-life temperature of 10 hours, 0.1 parts Inhibitor, 2 parts of BYK-W-996, 6 parts of % pigment, 180 parts of hydrated alumina powder with a particle size of 7-9um, 3 parts of zinc stearate powder with a particle size of 190 mesh, 0.5 parts of a particle size of 7-9um The calcium hydroxide powder (purity 95%) of 10um, 80 parts of lengths are the alkali-free chopped glass fiber of 6mm, stand-by;

[0042] in:

[0043] The granular low-shrinkage additive is a colorable polystyrene granular low-shrinkage additive with a particle size of about 200 mesh;

[0044] The polymerization inhibitor is a mixture of hydroquinone and p-benzoquinone in a ratio of 1:3;

[0045] The pigment is a color paste...

Embodiment 2

[0053] Proportioning raw materials according to the following parts by weight:

[0054] 70 parts of solid content are 70% o-phthalic unsaturated polyester resin, 30 parts of granular low-shrinkage additives, 2.5 parts of tert-butyl peroxybenzoate (purity 98%) at 104 °C with a half-life temperature of 10 hours, 0.3 parts Inhibitor, 4 parts of BYK-W-996, 10 parts of pigment, 240 parts of hydrated alumina powder with a particle size of 7-9 um, 5 parts of zinc stearate powder with a particle size of 190 mesh, and 1.0 part of a particle size of 7 Calcium hydroxide powder (purity 95%) of ~10um, 60 parts of lengths are the alkali-free chopped glass fiber of 6mm, stand-by;

[0055] in:

[0056] The granular low-shrinkage additive is a colorable polystyrene granular low-shrinkage additive with a particle size of about 200 mesh;

[0057] The polymerization inhibitor is a mixture of hydroquinone and p-benzoquinone in a ratio of 1: 3.5;

[0058] The pigment is a color paste made by mix...

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Abstract

The invention relates to the field of composite insulating materials and discloses a low volatile polyester molding compound and a preparation method thereof. The low volatile polyester molding compound is mainly manufactured by directly selecting granular colorable polystyrene (PS) with the particle diameter of about 200 meshes on the aspect of low shrinkage additive, and adopting a direct addition technology without carrying out a working procedure of blending of the polystyrene and monomer styrene, therefore, the invention greatly lowers the content of the monomer styrene in materials and the content of volatile in the polyester molding compound, realizes the minimization of the content of the monomer styrene on the premise of ensuring that the polyester molding compound is completely reacted and solidified, keeps the prior excellent performance, and obviously reduces pollution to the environment.

Description

technical field [0001] The invention relates to the field of composite insulating materials, in particular to a low volatile polyester molding compound and a preparation method thereof. Background technique [0002] Polyester molding compound is widely used in industrial and agricultural production and daily life because of its good rigidity, flexibility, resilience, corrosion resistance and weather resistance. However, it is indispensable as a polyester molding compound One of the materials——monomer styrene is a dangerous chemical substance, which not only stimulates and anesthetizes the eyes and upper respiratory tract mucous membranes, but long-term exposure can also lead to neurasthenia, pulmonary obstructive lesions, and even cancer ; More importantly, the monomer styrene is extremely volatile in polyester molding compounds, which can easily pollute air, soil and water, and is extremely harmful to the environment. This makes people indulge in the harm of monomer styren...

Claims

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Application Information

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IPC IPC(8): C08L67/06C08L25/06C08K13/04C08K5/01C08K3/22C08K3/26C08K5/14C08K5/098C08K7/14C08K5/13
Inventor 夏宏伟赵敏海冯伟祖肖新倪新梅吴玉亚
Owner 无锡新宏泰电器科技股份有限公司