A kind of preparation method of high weather resistance hydrophobic gel coat resin for radome

A technology with high weather resistance and radome, which is applied in antifouling/underwater coatings, biocide-containing paints, radiation-absorbing coatings, etc. It can solve the problems of low weather resistance and low hydrophobicity, and achieve excellent wear resistance Scratch performance, water repellency does not decrease, effects of improving UV resistance and anti-fungal properties

Active Publication Date: 2021-06-18
HARBIN TOPFRP COMPOSITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the technical problem of low weather resistance and low hydrophobicity of the existing gel coat resin for radome, and provides a preparation method of high weather resistance hydrophobic gel coat resin for radome

Method used

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  • A kind of preparation method of high weather resistance hydrophobic gel coat resin for radome

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specific Embodiment approach 1

[0020] Embodiment 1: This embodiment is a preparation method of a high weather-resistant hydrophobic gel coat resin for a radome, which is specifically carried out according to the following steps:

[0021] 1. Add 2-(2'-hydroxy-5'-tert-octylphenyl) benzotriazole to styrene, and ultrasonically disperse to obtain ultraviolet absorber dispersion; the 2-(2'-hydroxyl The mass of -5'-tert-octylphenyl) benzotriazole is 30% to 35% of the mass of styrene;

[0022] 2. Add dichlorooctyl isothiazolinone into styrene, stir mechanically until dispersed uniformly, to obtain antifungal auxiliary agent dispersion; the quality of described dichlorooctyl isothiazolinone is 50% of the quality of styrene %~55%;

[0023] 3. Add polytetrafluoroethylene powder to the m-phenylneopentyl glycol type gel coat, use a grinder to disperse evenly, add the ultraviolet absorber dispersion liquid of step 1 and the antifungal auxiliary agent dispersion liquid of step 2, and mechanically stir until dispersed un...

specific Embodiment approach 2

[0027] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the quality of 2-(2'-hydroxy-5'-tert-octylphenyl)benzotriazole described in step 1 is the quality of styrene 30%. Others are the same as the first embodiment.

specific Embodiment approach 3

[0028] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the mass of the dichlorooctylisothiazolinone described in step 2 is 50% of the mass of styrene. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a preparation method of a highly weather-resistant hydrophobic gel coat resin for a radome, and relates to a preparation method of the gel coat resin. The invention aims to solve the technical problems of low weather resistance and low hydrophobicity of the existing gel coat resin for radome. The preparation method of the present invention: 1. prepare the dispersion liquid of the ultraviolet absorber; 2. prepare the dispersion liquid of the anti-mold auxiliary agent; Dispersions and antifungal additive dispersions. The highly weather-resistant hydrophobic gel coat resin for radome of the present invention is used as the highly weather-resistant hydrophobic coating on the surface of the radome. The surface of the radome composite material sample prepared by the invention is gel coat coating is hydrophobic, the dielectric constant is 3, and the hydrophobic performance does not decrease after the artificial 1000h solar radiation test, and has excellent wear resistance and scratch resistance and good weather resistance performance, improving the UV resistance and anti-fungal properties of the gel coat on the surface of the radome.

Description

technical field [0001] The present invention relates to a preparation method of gel coat resin. Background technique [0002] The radome is an important part of the radar system and is called the "electromagnetic window" of the radar system. Ground radomes are mostly made of glass fiber reinforced resin matrix composite materials, and their outer surface is covered with a gel coat resin protective layer, which is used to isolate the external natural environment and the composite material matrix, and avoid solar radiation, salt spray, mold, rain and snow. , damp heat, sand and dust, etc., to delay the aging of the composite material in the inner layer. At the same time, in rainy and snowy weather, the thickness of the water film on the surface of the radome will directly affect the transmission loss performance of the antenna, and the hydrophobicity of the gel coat surface is also an important indicator to be guaranteed. [0003] The selection and modification of the gel co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D4/06C09D5/32C09D5/14
CPCC09D4/06C09D5/14C09D5/32
Inventor 于福斌白鹏程唐亮
Owner HARBIN TOPFRP COMPOSITE
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