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High-temperature-resistant unsaturated polyester resin for fiber reinforced plastic septic tanks, and preparation method thereof

A polyester resin and glass tempering technology, applied in the field of polyester resin, can solve the problems of small specific gravity, easy combustion of products, high temperature, etc., and achieve the effects of moderate viscosity, transparent appearance and low cost

Active Publication Date: 2019-01-22
安徽汇创新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] General unsaturated polyester resin products not only have excellent chemical corrosion resistance after curing, but also have good mechanical properties and relatively small specific gravity. However, unsaturated polyester resins have poor heat resistance and are generally only suitable for 155 Use at ℃, and the product is flammable
When applied to the base material of FRP septic tank, the manure in the tank will inevitably generate extremely high temperature after long-term fermentation. At this time, the FRP septic tank made of traditional unsaturated polyester resin must not meet the requirements.

Method used

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  • High-temperature-resistant unsaturated polyester resin for fiber reinforced plastic septic tanks, and preparation method thereof
  • High-temperature-resistant unsaturated polyester resin for fiber reinforced plastic septic tanks, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of high temperature resistant unsaturated polyester resin suitable for FRP septic tanks, the unsaturated polyester resin is organosilicon modified unsaturated polyester resin, and its raw materials include by weight: 17 parts of maleic anhydride, 28 parts of tetrahydrophthalic anhydride, 4 parts of adipic acid, 38 parts of propylene glycol, 3 parts of ethylene glycol, 8 parts of diethylene glycol, 5 parts of N-(polydimethylsiloxane) maleimide, 0.1 part of dicumyl peroxide, 0.01 part of hydroquinone, 24 parts of styrene;

[0022] Wherein, the N-(polydimethylsiloxane) maleimide is obtained by reacting amino-containing polydimethylsiloxane and maleic anhydride, and the amino-containing polydimethylsiloxane The amino group value is 0.6mmol / g, the viscosity at 25°C is 1.5Pas, and it is aminoethylaminopropylpolydimethylsiloxane; specifically, aminopolydimethylsiloxane and maleic dimethicone Acid anhydride is added to toluene at a molar ratio of 1:1.1 and mixed evenly,...

Embodiment 2

[0025] A kind of high-temperature-resistant unsaturated polyester resin suitable for FRP septic tanks, the unsaturated polyester resin is a silicone modified unsaturated polyester resin, and its raw materials include by weight: 28 parts of maleic anhydride, 12 parts of tetrahydrophthalic anhydride, 12 parts of adipic acid, 23 parts of propylene glycol, 9 parts of ethylene glycol, 4 parts of diethylene glycol, 12 parts of N-(polydimethylsiloxane) maleimide, 0.01 parts of dibenzoyl peroxide, 0.1 parts of tert-butylcatechol, 12 parts of styrene;

[0026] Wherein, the N-(polydimethylsiloxane) maleimide is obtained by reacting amino-containing polydimethylsiloxane and maleic anhydride, and the amino-containing polydimethylsiloxane The amino group value is 1.6mmol / g, the viscosity at 25°C is 0.8Pas, and it is aminoethylaminopropylpolydimethylsiloxane; specifically, aminopolydimethylsiloxane and maleic dimethicone Acid anhydride is added to toluene at a molar ratio of 1:1.3 and mixe...

Embodiment 3

[0029]A kind of high-temperature-resistant unsaturated polyester resin suitable for FRP septic tanks, the unsaturated polyester resin is a silicone modified unsaturated polyester resin, and its raw materials include by weight: 22 parts of maleic anhydride, 20 parts of tetrahydrophthalic anhydride, 8 parts of adipic acid, 30 parts of propylene glycol, 6 parts of ethylene glycol, 6 parts of diethylene glycol, 8 parts of N-(polydimethylsiloxane) maleimide, 0.05 parts of initiator, 0.05 parts of polymerization inhibitor, 18 parts of diluent;

[0030] Wherein, the N-(polydimethylsiloxane) maleimide is obtained by reacting amino-containing polydimethylsiloxane and maleic anhydride, and the amino-containing polydimethylsiloxane The amino group value is 1.0mmol / g, the viscosity at 25°C is 1.1Pas, and it is aminoethylaminopropylpolydimethylsiloxane; specifically, aminopolydimethylsiloxane and maleic dimethicone The acid anhydride is added to toluene at a molar ratio of 1:1.2 and mixed...

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PUM

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Abstract

The invention discloses a high-temperature-resistant unsaturated polyester resin for fiber reinforced plastic septic tanks, wherein the unsaturated polyester resin is an organosilicon modified unsaturated polyester resin, and comprises the following raw materials by weight: 17-28 parts of maleic anhydride, 12-28 parts of tetrahydrophthalic anhydride, 4-12 parts of adipic acid, 23-38 parts of propylene glycol, 3-9 parts of ethylene glycol, 4-8 parts of diethylene glycol, 5-12 parts of N-(polydimethylsiloxane)maleimide, 0.01-0.1 part of an initiator, 0.01-0.1 part of a polymerization inhibitor,and 12-24 parts of a diluent. The unsaturated polyester resin of the present invention can effectively improve the high temperature resistance while the excellent processability and the excellent mechanical property are maintained.

Description

technical field [0001] The invention relates to the technical field of polyester resins, in particular to a high-temperature-resistant unsaturated polyester resin suitable for FRP septic tanks and a preparation method thereof. Background technique [0002] Septic tank is an indispensable drainage treatment equipment in the field of construction. It is used to discharge domestic wastewater into municipal pipelines after primary treatment or into lower-level sewage treatment facilities for advanced treatment. In the early days, septic tanks were usually made of bricks, reinforced concrete or steel plates, but they all had obvious defects. In recent years, glass fiber reinforced plastic septic tanks have gradually been selected by most construction units. The scientific name of FRP is glass fiber reinforced plastic, and the septic tank storage tank made of FRP has the characteristics of strong corrosion resistance, no leakage, easy construction, and slow aging speed. The servic...

Claims

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Application Information

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IPC IPC(8): C08G63/676C08F299/04C08F299/08
CPCC08F299/04C08F299/08C08G63/676
Inventor 周飞任旭明汤明明
Owner 安徽汇创新材料有限公司
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