阅读说明：本技术 一种5g玄武岩纤维复合材料天线罩及制备方法 (5G basalt fiber composite material antenna housing and preparation method thereof ) 是由 肖尧 林荣伟 张应� 于 2020-06-24 设计创作，主要内容包括：本发明涉及天线罩领域,尤其涉及一种5G玄武岩纤维复合材料天线罩的制备方法。还提供了一种5G玄武岩纤维复合材料天线罩,包括玄武岩纤维35～40份、乙烯基树脂35～40份、过氧化甲乙酮1～2份、环烷酸钴1～2份、不饱和聚酯1～3份、钛白粉1～2份、不饱和聚酯固化剂1～2份、促进剂1～2份、脱模剂1～5份,具有介电系数小,透波性好且耐高低温、耐腐蚀、机械强度高,使用寿命长等优点,在-40～60℃下能长时间使用无损伤。(The invention relates to the field of antenna covers, in particular to a preparation method of a 5G basalt fiber composite material antenna cover. The 5G basalt fiber composite material antenna housing comprises 35-40 parts of basalt fibers, 35-40 parts of vinyl resin, 1-2 parts of methyl ethyl ketone peroxide, 1-2 parts of cobalt naphthenate, 1-3 parts of unsaturated polyester, 1-2 parts of titanium dioxide, 1-2 parts of unsaturated polyester curing agent, 1-2 parts of accelerator and 1-5 parts of release agent, has the advantages of small dielectric coefficient, good wave permeability, high and low temperature resistance, corrosion resistance, high mechanical strength, long service life and the like, and can be used for a long time at the temperature of-40-60 ℃ without damage.)

1. A preparation method of a 5G basalt fiber composite material radome is characterized by comprising the following steps:

a. preparing a basalt fiber preform, and preparing basalt fiber precursor into a basalt fiber braided fabric;

b. taking the resin mixed solution added with the curing agent as a matrix, taking the basalt fiber fabric as a reinforcing material, and manually brushing and pasting the basalt fiber fabric to bond the basalt fiber fabric and the reinforcing material together;

c. c, manually brushing and sticking the resin mixed solution added with the titanium dioxide and the curing agent on the substrate in the step b to bond the titanium dioxide and the curing agent together to obtain a basalt composite board;

d. placing the prepared basalt composite board at normal temperature for complete curing and forming to obtain a formed composite board;

e. and (4) re-molding the molded composite board by using a mold release agent, and then performing subsequent processing to prepare the 5G basalt fiber radome suitable for the model.

2. The preparation method of the 5G basalt fiber composite material antenna housing according to claim 1, wherein the resin mixed solution in the step b comprises vinyl resin, methyl ethyl ketone peroxide, cobalt naphthenate and unsaturated polyester.

3. The preparation method of the 5G basalt fiber composite material antenna housing according to claim 2, wherein the preparation of the vinyl resin comprises the following steps: putting novolac epoxy resin into a reaction kettle, adding styrene and a high-temperature-resistant polymerization inhibitor, heating to 105 ℃, adding a mixed solution of methacrylic acid and a catalyst for three times, adding maleic acid and the catalyst, carrying out heat preservation reaction for 3 hours at 110 ℃ until the acid value of the system is 32-40 mgKOH/g as a reaction end point, and cooling to obtain a vinyl resin liquid.

4. The preparation method of the 5G basalt fiber composite material radome, according to claim 2, wherein the methyl ethyl ketone peroxide is obtained by oxidizing, neutralizing, separating, dehydrating, standing, filtering methyl ethyl ketone and hydrogen peroxide in the presence of sulfuric acid, and finally adding a solubilizer, the cobalt naphthenate is used as a catalyst and a curing accelerator, the unsaturated polyester is directly subjected to melt polycondensation by using acid and alcohol, and water generated by the reaction is separated out through a separation column by using the boiling path difference of alcohol and water, and the remainder is the unsaturated polyester.

5. The preparation method of the 5G basalt fiber composite material antenna housing according to claim 1, wherein the curing agent in the steps b and c is an unsaturated polyester curing agent for enhancing or controlling a resin mixed solution to perform a curing reaction.

6. The preparation method of the 5G basalt fiber composite material antenna housing according to claim 1, wherein the normal temperature in the step d is 25-30 ℃.

7. A5G basalt fiber composite material radome prepared by the preparation method of the basalt fiber composite material radome of any one of the claims 1 to 6 is characterized in that the material components are calculated according to the mass parts: the composite material comprises 35-40 parts of basalt fiber, 35-40 parts of vinyl resin, 1-2 parts of methyl ethyl ketone peroxide, 1-2 parts of cobalt naphthenate, 1-3 parts of unsaturated polyester, 1-2 parts of titanium dioxide, 1-2 parts of unsaturated polyester curing agent, 1-2 parts of accelerator and 1-5 parts of release agent.

8. The 5G basalt fiber composite material radome of claim 7, wherein the material has the advantages of small dielectric coefficient, good wave permeability, high and low temperature resistance, corrosion resistance, high mechanical strength, long service life and the like, and can be used for a long time without damage at the temperature of-40 to 60 ℃.

9. The 5G basalt fiber composite material radome of claim 7, comprising a cuboid-shaped housing with two open ends, wherein the upper end surface of the housing is a smooth cambered surface.

Technical Field

The invention relates to the field of antenna covers, in particular to a 5G basalt fiber composite material antenna cover and a preparation method thereof.

Background

The antenna housing is a structure for protecting an antenna system from being influenced by an external environment, an outdoor antenna is usually placed in the open air to work and is directly invaded by storm, ice and snow, sand dust, solar radiation and the like in the nature, so that the precision of the antenna is reduced, the service life is shortened, the working reliability is poor, the antenna housing is usually configured to protect, the service life of the outdoor antenna is prolonged, the existing 5G antenna housing has the defects in use, the dielectric coefficient is high, the wave permeability is poor, the corrosion resistance is poor, the mechanical strength is poor, secondly, the ambient environment is usually high in temperature, the high-temperature resistant effect of the antenna housing is poor, the using effect of the antenna housing is unsatisfactory, and therefore, the 5G basalt fiber composite material antenna housing and the preparation method are provided.

Disclosure of Invention

The invention aims to solve the defects in the background art and provides a 5G basalt fiber composite material antenna housing and a preparation method thereof.

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: a preparation method of a 5G basalt fiber composite material radome comprises the following steps:

a. preparing a basalt fiber preform, and preparing basalt fiber precursor into a basalt fiber braided fabric;

b. taking the resin mixed solution added with the curing agent as a matrix, taking the basalt fiber fabric as a reinforcing material, and manually brushing and pasting the basalt fiber fabric to bond the basalt fiber fabric and the reinforcing material together;

c. c, manually brushing and sticking the resin mixed solution added with the titanium dioxide and the curing agent on the substrate in the step b to bond the titanium dioxide and the curing agent together to obtain a basalt composite board;

d. placing the prepared basalt composite board at normal temperature for complete curing and forming to obtain a formed composite board;

e. and (4) re-molding the molded composite board by using a mold release agent, and then performing subsequent processing to prepare the 5G basalt fiber radome suitable for the model.

Preferably, the resin mixture in step b includes vinyl resin, methyl ethyl ketone peroxide, cobalt naphthenate, and unsaturated polyester.

Preferably, the vinyl resin preparation comprises: putting novolac epoxy resin into a reaction kettle, adding styrene and a high-temperature-resistant polymerization inhibitor, heating to 105 ℃, adding a mixed solution of methacrylic acid and a catalyst for three times, adding maleic acid and the catalyst, carrying out heat preservation reaction for 3 hours at 110 ℃ until the acid value of the system is 32-40 mgKOH/g as a reaction end point, and cooling to obtain a vinyl resin liquid.

Preferably, the methyl ethyl ketone peroxide is obtained by oxidizing, neutralizing, separating, dehydrating, standing, filtering and finally adding a solubilizer into methyl ethyl ketone and hydrogen peroxide in the presence of sulfuric acid, the cobalt naphthenate is used as a catalyst and a curing accelerator, the unsaturated polyester is directly subjected to melt polycondensation by using acid and alcohol, and water generated by the reaction is separated out through a separation column by utilizing the boiling path difference of alcohol and water, and the remainder is the unsaturated polyester.

Preferably, the curing agent in steps b and c is an unsaturated polyester curing agent for enhancing or controlling the curing reaction of the resin mixture.

Preferably, the normal temperature in the step d is 25-30 ℃.

The 5G basalt fiber composite material radome is prepared by the preparation method of the basalt fiber composite material radome, and the material components are calculated according to the mass parts: the composite material comprises 35-40 parts of basalt fiber, 35-40 parts of vinyl resin, 1-2 parts of methyl ethyl ketone peroxide, 1-2 parts of cobalt naphthenate, 1-3 parts of unsaturated polyester, 1-2 parts of titanium dioxide, 1-2 parts of unsaturated polyester curing agent, 1-2 parts of accelerator and 1-5 parts of release agent.

Preferably, the material has the advantages of small dielectric coefficient, good wave permeability, high and low temperature resistance, corrosion resistance, high mechanical strength, long service life and the like, and can be used for a long time at the temperature of minus 40-60 ℃ without damage.

Preferably, the device comprises a cuboid shell with two open ends, and the upper end surface of the shell is a smooth cambered surface.

Compared with the prior art, the invention has the following beneficial effects: the method for manufacturing the 5G basalt fiber composite radome has the advantages of simple steps, smooth surface of basalt fiber and low surface energy, and after surface modification, the surface of the radome is added with a matrix, so that the surface roughness of the fiber is effectively improved, the load performance is improved, the matrix has good affinity with resin, the integral strength after the radome is formed is increased, meanwhile, the radome has good durability, and the stability of a protective cover can be ensured.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.