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Bio-based styrene volatilization inhibitor suitable for unsaturated polyester resin

A polyester resin and styrene-based technology, which is applied in the field of bio-based styrene volatilization inhibitors, can solve the problems of reduced product competitiveness, high price, and increased production costs, and achieve safe products and preparation methods, low prices, and high-quality products. The effect of excellent performance

Inactive Publication Date: 2021-05-07
泰安市中研复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, BYKS740, BYK-S750 developed by BYK Company of Germany and Merican 109 developed by Huachang Company are the most used inhibitors on the market, which have almost no effect on resin performance, but are expensive, and the price of BYK-S740 reaches 270 RMB / kg, the price of Merican109 is 100 RMB / kg, the use of inhibitors will greatly increase the production cost of the enterprise and reduce the competitiveness of the product

Method used

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  • Bio-based styrene volatilization inhibitor suitable for unsaturated polyester resin
  • Bio-based styrene volatilization inhibitor suitable for unsaturated polyester resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In a flask equipped with a stirrer device, add 1g of beeswax and 2g of KH570, raise the temperature to 80°C, stir for 30min, rotate at 300rpm, melt the beeswax and mix evenly, then add 100g of glyceryl oleate, continue to stir and mix for 30min to obtain styrene volatilization inhibition Agent 1.

[0045] Take 49.99g of vinyl ester resin and put it into a round bottom flask, add 1g of styrene volatilization inhibitor 1, mix well, pour it into a glass dish with a diameter of 120mm, weigh 47.59g, let stand for 24h, weigh the mass It was 47.39g, and the release amount of styrene was 0.20g, a year-on-year decrease of 23.08%. After standing for 7 days, the release amount of styrene was 0.69g, and the release amount decreased by 4.17% compared with the same period of last year. After the vinyl ester resin added with the inhibitor and 300gsm glass fiber plain weave were prepared into a composite material with a solid content of 40%, the interlaminar shear strength of the comp...

Embodiment 2

[0047] In a flask equipped with a stirrer device, add 3g of beeswax and 6g of KH570, raise the temperature to 70°C, stir for 30min, rotate at 300rpm, melt the beeswax and mix evenly, then add 100g of glyceryl oleate, continue to stir and mix for 40min to obtain styrene volatilization inhibition Agent 2.

[0048] Take 50.12g of vinyl ester resin and put it into a round bottom flask, add 0.25g of styrene volatilization inhibitor 2, mix well, pour it into a glass dish with a diameter of 120mm, weigh 47.17g, let stand for 24h, weigh The mass is 47.04g, and the release amount of styrene is 0.13g, which is a year-on-year decrease of 50.00%. After standing for 7 days, the release amount of styrene was 0.56g, and the release amount decreased by 22.22% compared with the same period of last year. After the vinyl ester resin added with the inhibitor and 300gsm glass fiber plain weave were prepared into a composite material with a solid content of 40%, the interlaminar shear strength of ...

Embodiment 3

[0050] Take 50.29g of vinyl ester resin and add it to a round bottom flask, add 0.50g of the styrene volatilization inhibitor 2 in Example 1, mix well, pour it into a glass dish with a diameter of 120mm, weigh 47.38g, and let it stand After 24 hours, the weighed mass was 47.24g, and the release amount of styrene was 0.14g, which decreased by 46.15% compared with the same period of last year. After standing for 7 days, the release amount of styrene was 0.53g, and the release amount decreased by 26.39% compared with the same period of last year. After the vinyl ester resin added with the inhibitor and 300gsm glass fiber plain weave were prepared into a composite material with a solid content of 40%, the interlaminar shear strength of the composite material was 29.1 MPa. It can be seen that with the addition of styrene volatilization inhibitors, the interlayer shear strength of composite materials gradually decreases. In order to maintain good composite product performance and re...

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Abstract

The invention discloses a bio-based styrene volatilization inhibitor suitable for unsaturated polyester resin. The bio-based styrene volatilization inhibitor comprises 0-100 parts of triolein or triolein, 1-6 parts of beewax, 0-3 parts of paraffin, 1-6 parts of a coupling agent KH570 and 0-4 parts of hollow glass beads. According to the bio-based styrene volatilization inhibitor suitable for the unsaturated polyester resin, the used raw materials are bio-based raw materials and are low in price; and the bio-based styrene volatilization inhibitor contains active functional groups such as carbon-carbon double bonds and ester bonds in molecular chains, the activity of the active functional groups is lower than that of terminal double bonds of styrene, styrene reacts with vinyl ester in the curing process, the product performance is not affected, and meanwhile styrene volatilization is inhibited.

Description

technical field [0001] The invention belongs to the technical field of styrene volatilization inhibitors, in particular to a bio-based styrene volatilization inhibitor suitable for unsaturated polyester resins. Background technique [0002] Styrene is an important chemical raw material. It is widely used in the production of unsaturated polyester resin as a reactive diluent. The content in the resin is 30-40%, which can play the role of dilution and crosslinking. However, the boiling point of styrene monomer is 146°C, and the saturated vapor pressure is 1.33kpa (30°C). It is volatile, and every ten tons of unsaturated polyester resin produced will have hundreds of dollars of styrene volatilization and waste. At the same time, styrene has Acute toxicity, irritating to human eyes and respiratory mucous membrane, is a harmful air pollutant. Therefore, reducing the volatilization of styrene has economic value and social value. At this stage, there are two main ways to reduce t...

Claims

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Application Information

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IPC IPC(8): C08L91/06C08L51/08C08K7/28C08K5/5425C08K5/103C08K7/14
CPCC08L91/06C08K7/28C08K5/5425C08K5/103C08K7/14C08K2201/005C08K5/03C08L51/08
Inventor 王洋刘宇许晓南
Owner 泰安市中研复合材料科技有限公司