Glass fiber reinforced plastics antenna housing profile and preparation method thereof

A cover profile and glass fiber reinforced plastic technology, which is applied in the field of fiberglass reinforced plastic radome profiles and their preparation, can solve problems such as troubles, interruption of production, and mold blocking, and achieve the effects of high-efficiency curing, prolonging gel time, and ensuring mechanical properties.

Active Publication Date: 2017-05-31
NANJING HUAGE ELECTRONICS & AUTOMOBILE PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In summer, due to the hot weather, the temperature of the working environment is as high as about 40°C. In the material mixing and preforming stage, because the resin mixture is left standing in the trough for a long time (soaked with glass fiber), a small amount of cross-linking and curing reactions occur in the mixture. , the reaction product accumulates in the die mouth, causing the mold to be blocked and interrupting the production; therefore, how to improve the stability of the resin mixture in the preforming process without affecting the mechanical properties of the product after the resin mixture is heated and cured in the mold It is a big problem that has plagued technicians in the field of pultrusion for a long time to achieve continuous production

Method used

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  • Glass fiber reinforced plastics antenna housing profile and preparation method thereof
  • Glass fiber reinforced plastics antenna housing profile and preparation method thereof
  • Glass fiber reinforced plastics antenna housing profile and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0021] This embodiment relates to a FRP radome profile, wherein the glass fiber mass fraction accounts for 65%, and the resin compound mass fraction accounts for 35%; the parts by weight of each component of the resin compound are: unsaturated polyester: 100 parts Aluminum hydroxide: 15 parts; Color paste: 2 parts; Phosphate release agent: 0.8 part; Amine antioxidant: 0.1 part; 3 parts of curing system, the curing system includes accelerator and initiator; The initiators include BPO, AW and TBPB; wherein the accelerator in the curing system: BPO:AW:TBPB=0.5:0.4:0.3:0.3.

[0022] The properties of the resin mixture are shown in Table 1.

[0023] The present invention also relates to a method for preparing the FRP radome profile, which is characterized in that it comprises the following steps:

[0024] The first step: at room temperature, add 100 parts of resin, 15 parts of filler, 3 parts of color paste, 1 part of release agent and 0.2 part of antioxidant into the material tan...

Embodiment 2

[0031] This embodiment relates to a FRP radome profile. Except for the different component ratios in the curing system, other components and preparation methods are the same as in Example 1; specifically, the mass fraction of glass fiber accounts for 65%, and the mass fraction of resin mixture accounts for 35%. The parts by weight of each component of the resin mixture are: unsaturated polyester: 100 parts; aluminum hydroxide: 15 parts; color paste: 2 parts; phosphate ester mold release agent: 0.8 parts; amine antioxidant : 0.1 part; 3 parts of the curing system, the accelerator in the curing system: BPO:AW:TBPB=0.5:0.3:0.2:0.1.

[0032] The properties of the resin mixture are shown in Table 1.

Embodiment 3

[0034] This embodiment relates to a FRP radome profile. Except for the different component ratios in the curing system, other components and preparation methods are the same as in Example 1; specifically, the mass fraction of glass fiber accounts for 65%, and the mass fraction of resin mixture accounts for 35%. The parts by weight of each component of the resin mixture are: unsaturated polyester: 100 parts; aluminum hydroxide: 15 parts; color paste: 2 parts; phosphate ester mold release agent: 0.8 parts; amine antioxidant : 0.1 part; 3 parts of curing system, accelerator in the curing system: BPO:AW:TBPB=0.5:0.2:0.1:0.3. The properties of the resin mixture are shown in Table 1.

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Abstract

The invention relates to a glass fiber reinforced plastics antenna housing profile. The profile is prepared from the following chemical elements of 65% by mass of glass fiber and 35% by mass of a resin compound, wherein the resin compound is prepared from, 100 parts of resin, 15 parts of filler, 3 parts of color paste, 1 part of a release agent, 0.2 part of an antioxidant and 3 parts of a curing system, the curing system comprises an accelerator and initiators, the initiators comprise BPO, AW and TBPB, and the component ratio of the accelerator to BPO to AW to TBPB is 0.5:(0.4-0.1):(0.1-0.4):(0.4-0.1). According to the glass fiber reinforced plastics profile, after the multiple initiators are added into the resin compound for combination, the gelation time of the resin compound is prolonged, the gelation time is prolonged to 7-8 h from 3-4 h in the prior art, and the phenomenon that resin is subjected to a cross-linking and curing reaction in advance in a feed trough is avoided.

Description

technical field [0001] The invention relates to a fiberglass radome profile and a preparation method thereof, belonging to the field of composite materials. Background technique [0002] In the fiber-reinforced unsaturated polyester FRP pultrusion process, unsaturated polyester resin is mainly used as the matrix material (accounting for 30-40%), glass fiber is used as the reinforcing material (accounting for 60-70%), and a certain amount of filler, Color paste, release agent, accelerator, antioxidant and initiator, etc., after the mold is heated to a certain temperature, trigger the crosslinking and curing reaction of the resin mixture to form pultrusion. In summer, due to the hot weather, the temperature of the working environment is as high as about 40°C. In the material mixing and preforming stage, because the resin mixture is left standing in the trough for a long time (soaked with glass fiber), a small amount of cross-linking and curing reactions occur in the mixture. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08K13/04C08K7/14C08K5/14
CPCC08K5/14C08K7/14C08K13/04C08K2201/014C08L67/06
Inventor 陈浩徐国忠沈勇军叶枫韬黄定芳包建宁肖坚
Owner NANJING HUAGE ELECTRONICS & AUTOMOBILE PLASTIC IND
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