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Halogen-free flame-retarding unsaturated polyester resin glass-reinforced plastic and preparation method thereof

A polyester resin, unsaturated technology, applied in the field of halogen-free flame retardant unsaturated polyester resin glass fiber reinforced plastic and its preparation, to achieve the effects of improving wear resistance, reducing water absorption and improving adhesion

Inactive Publication Date: 2019-03-29
濮阳市盛源石油化工(集团)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above problems, the present invention provides a kind of halogen-free flame-retardant unsaturated polyester resin glass fiber reinforced plastics and its preparation method. Treated nano-aluminum hydroxide is added to the system to disperse it evenly, which overcomes the problem caused by adding aluminum hydroxide. The shortcomings of unsaturated polyester resin FRP that are too large to affect the use effect, the product has excellent mechanical properties, good flame retardant effect, does not contain halogen, and will not generate toxic gases when burned

Method used

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  • Halogen-free flame-retarding unsaturated polyester resin glass-reinforced plastic and preparation method thereof

Examples

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Embodiment 1

[0033] A halogen-free flame-retardant unsaturated polyester resin glass fiber reinforced plastics, comprising the following components in parts by weight: 50 parts of o-phthalic unsaturated polyester resin, 0.5 parts of methyl ethyl ketone peroxide, 5 parts of zinc stearate, 10 parts of carbon fiber, 25 parts of alkali-free glass fiber with a length of 3 mm, 30 parts of styrene, and 5 parts of aluminum hydroxide.

[0034] Described alkali-free glass fiber is through pretreatment, and the specific steps of pretreatment are:

[0035] 1) Calcining the alkali-free glass fiber in a muffle furnace, the calcination temperature is 400°C, and the calcination time is 1h, and the calcined glass fiber is obtained for use;

[0036] 2) Put the alkali-free glass fiber calcined in step 1) into soapy water for ultrasonic cleaning for 5 minutes, then ultrasonically clean it with clean water for 3 minutes, and then dry it to obtain the alkali-free glass fiber after drying and removing impurities...

Embodiment 2

[0049]A halogen-free flame-retardant unsaturated polyester resin glass fiber reinforced plastics, comprising the following components in parts by weight: 70 parts of isophthalic unsaturated polyester resin, 1 part of cyclohexanone peroxide, 7 parts of calcium stearate, carbon nano 20 parts of tubes, 35 parts of alkali-free glass fibers with a length of 3 mm, 40 parts of methyl methacrylate, and 15 parts of modified aluminum hydroxide. When carbon nanotubes are used, the specific steps of processing are: Soak in ethanol for 2~3h, then reflux the carbon nanotubes with 1:1 nitric acid for 12h~24h. Remove the residual nitric acid by filtration to obtain a precipitate. After the precipitate is ultrasonically treated with mixed acid (the volume ratio of concentrated nitric acid and concentrated sulfuric acid is 1:3) for 2~4 hours, it is then ultrasonically treated with 20% hydrogen peroxide aqueous solution for 2~4 hours. Centrifuge and wash with double distilled water until neutral...

Embodiment 3

[0064] A halogen-free flame-retardant unsaturated polyester resin glass fiber reinforced plastics, comprising the following components in parts by weight: 90 parts of vinyl-type unsaturated polyester resin, 1.5 parts of methyl ethyl ketone peroxide, 10 parts of magnesium stearate, and 30 parts of graphene , 50 parts of alkali-free glass fiber with a length of 3 mm, 50 parts of styrene, and 20 parts of modified aluminum hydroxide.

[0065] The alkali-free glass fiber with a length of 3mm is pretreated, and the specific steps of pretreatment are as follows:

[0066] 1) Calcining the alkali-free glass fiber in a muffle furnace, the calcination temperature is 450°C, and the calcination time is 1h, and the calcined glass fiber is obtained for use;

[0067] 2) Put the alkali-free glass fiber calcined in step 1) into soapy water for 10 minutes of ultrasonic cleaning, then ultrasonically clean it with clean water for 5 minutes and then dry it to obtain the alkali-free glass fiber afte...

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Abstract

The invention discloses halogen-free flame-retarding unsaturated polyester resin glass-reinforced plastic which includes: unsaturated polyester resin, an initiator, a demolding agent, filler, a reinforcing material, a diluent and a flame retardant. A preparation method comprises: adding the unsaturated polyester resin and diluent into a stirrer and quickly stirring the components to obtain a mixture; moving the mixture into a kneading device, kneading the mixture, successively adding the initiator, the demolding agent, the filler, the reinforcing material and the flame retardant into the kneading device and continuously kneading the mixture, thereby preparing the halogen-free flame-retarding unsaturated polyester resin glass-reinforced plastic. Modified aluminum hydroxide serves as the flame retardant, wherein surface area of the aluminum hydroxide is increased, so that dehydration temperature thereof is increased and foaming problem of same is solved. Defects of influences on use effect of the unsaturated polyester resin glass-reinforced plastic due to excessive addition of the aluminum hydroxide can be solved, so that the product has excellent mechanical performance and flame-retarding effect, is halogen-free, and is free of forming toxic gases during combustion.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a halogen-free flame-retardant unsaturated polyester resin glass fiber reinforced plastic and a preparation method thereof. Background technique [0002] Unsaturated polyester resin FRP composite material has the advantages of light weight, good toughness, corrosion resistance, etc., so it is widely used in the fields of automobiles and construction, where the flame retardant properties of FRP composite materials are more concerned; [0003] Since the 1930s, polymer materials have been widely used in various fields. While providing convenience, they also bring potential fire risks due to their own flammability. In order to reduce the occurrence of fires, countries all over the world are looking for and developing Materials with good flame retardant effect. At present, the flame retardants used in FRP composite materials are usually halogenated substances, which emit a...

Claims

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Application Information

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IPC IPC(8): C08F283/01C08F212/08C08F220/14C08K13/06C08K9/00C08K9/02C08K9/06C08K3/22C08K7/14
CPCC08F283/01C08K3/22C08K7/14C08K9/00C08K9/02C08K9/06C08K13/06C08K2003/2227C08K2201/004C08K2201/011C08F212/08C08F220/14
Inventor 陈文仓张可义卢奇
Owner 濮阳市盛源石油化工(集团)有限公司
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