Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation process of flame-retardant unsaturated polyester resin

A technology of polyester resin and preparation process, which is applied in the field of chemical material preparation, and can solve the problems of limited popularization and application, high price, and accompanying flames

Pending Publication Date: 2020-07-28
JIANGSU UNIV OF TECH
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, most of the matrix resins of FRP are organic polymers, which are flammable and easy to burn under certain conditions. Polymer combustion is a complex and violent thermal oxidation process, often accompanied by flames, thick smoke, and poisonous gas.
[0007] General-purpose glass fiber reinforced plastics often adopt two methods of additive type and reactive type for flame retardant modification. The price of the reactive type flame retardant system is relatively high, which limits its popularization and application. About 90% of the products in the world are modified by additive type flame retardants. modified

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] (1) First use an electronic balance to weigh 100g of unsaturated polyester resin, 42g of anti-shrinking agent, and then weigh 85.2g of calcium carbonate, 3.6g of zinc stearate, 14.2g of styrene, and 1.7g of perbenzoic acid Tert-butyl ester, 5.7g of mA-25C.

[0014] (2) Weigh the materials in step 1 and put them into the container, add 21.3g APP, 1.42g aluminum hypophosphite, 1.42g aluminum hydroxide, the ratio is 15:1:1, mix them, turn on the electric mixer, Adjust the rotation speed knob to a suitable position and stir it to make it evenly mixed.

[0015] (3) Sprinkle the stirred material evenly with glass fiber, mix it evenly, put it in the oven, and cure at 45 degrees for 5 hours. Choose a mold with a thickness of 4mm, pour the material into the mold and place it between the upper and lower plates of the plate vulcanizer. After 15 minutes of high temperature and high pressure curing, the mold is changed to the lower laminate, and the press plate is raised to cool for 2 ...

Embodiment 2

[0018] (1) First use an electronic balance to weigh 200g of unsaturated polyester resin, 84g of anti-shrinking agent, and then weigh 170.4g of calcium carbonate, 7.2g of zinc stearate, 28.4g of styrene, and 3.4g of perbenzoic acid Terbutyl ester, 11.4 g of mA-25C.

[0019] (2) Weigh the materials in step 1 and put them into the container, add 28.4g APP, 5.68g aluminum hydroxide, the ratio is 4:1, mix them, turn on the electric mixer, adjust the speed knob to the appropriate position, right It is stirred to make it evenly mixed.

[0020] (3) Sprinkle the stirred material evenly with glass fiber, mix it evenly, put it in the oven, and cure at 45 degrees for 5 hours. Choose a mold with a thickness of 4mm, pour the material into the mold and place it between the upper and lower plates of the plate vulcanizer. After 15 minutes of high temperature and high pressure curing, the mold is changed to the lower laminate, and the press plate is raised to cool for 2 minutes.

[0021] (4) Wait f...

Embodiment 3

[0023] (1) First use an electronic balance to weigh 100g of unsaturated polyester resin, 42g of anti-shrinking agent, and then weigh 85.2g of calcium carbonate, 3.6g of zinc stearate, 14.2g of styrene, and 1.7g of perbenzoic acid Tert-butyl ester, 5.7g of mA-25C.

[0024] (2) Weigh the materials in step 1 and put them into the container, add 5.68g APP, 28.4g aluminum hypophosphite, the ratio is 1:4, mix them, turn on the electric mixer, adjust the speed knob to the appropriate position, right It is stirred to make it evenly mixed.

[0025] (3) Sprinkle the stirred material evenly with glass fiber, mix it evenly, put it in the oven, and cure at 45 degrees for 5 hours. Choose a mold with a thickness of 4mm, pour the material into the mold and place it between the upper and lower plates of the plate vulcanizer. After 15 minutes of high temperature and high pressure curing, the mold is changed to the lower laminate, and the press plate is raised to cool for 2 minutes.

[0026] (4) Wai...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation process of a flame-retardant unsaturated polyester resin. According to the process, unsaturated polyester resin is used as a base material, calcium carbonate is used as a filler, styrene is used as a cross-linking agent and a diluent, polyphosphate is used as a flame-retardant plasticizer, aluminum hydroxide, aluminum hypophosphite, APP and the like are compounded into a flame retardant according to a certain proportion, a small amount of an anti-shrinking agent and glass fibers are added, the materials are stirred by a stirrer so that the materials are uniformly mixed, and the mixture is subjected to mould pressing in a tablet press to obtain the glass fiber reinforced plastic. The synthesized glass fiber reinforced plastic has excellent flame retardancy, and meanwhile, the bending resistance and impact resistance of the glass fiber reinforced plastic are not much different from those of glass fiber reinforced plastics without flame retardants, sothat the problem that the flame retardancy is poor when traditional materials are replaced in the building and ship industries is solved.

Description

Technical field [0001] The invention belongs to the field of chemical material preparation, and is specifically a preparation process of a flame-retardant unsaturated polyester resin, and particularly relates to the proportioning of various components of a flame retardant. Background technique [0002] Glass fiber reinforced plastic (FRP) is also called GFRP, that is, glass fiber reinforced plastic, generally refers to the use of glass fiber reinforced resin, and the resin is mostly unsaturated polyester resin, epoxy resin and phenolic resin matrix. Reinforced plastics that use glass fiber or its products as reinforcing materials are also called glass fiber reinforced plastics, or FRP, which is essentially different from toughened glass. Due to the different types of resins used to make FRP, there are polyester FRP, epoxy FRP, and phenolic FRP. Lightweight and hard, non-conductive, stable performance, high mechanical strength, less recycling and corrosion resistance. It can rep...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C08L67/06C08K13/04C08K7/14C08K3/32C08K3/22C08J5/04C08J5/10C08J5/18
CPCC08J5/10C08J5/043C08J5/18C08J2367/06C08K13/04C08K7/14C08K3/32C08K2003/2227C08K2003/323
Inventor 杨润苗张家闻董观秀刘玉海
Owner JIANGSU UNIV OF TECH