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Method for preparing bone black high-cohesiveness wave-transparent coating powder

A high-adhesion, coating powder technology, applied in the direction of coating, can solve the problems of low expansion rate, easy peeling or other destructive changes, destructive changes during use, and achieve the effect of simple preparation process

Inactive Publication Date: 2016-11-09
丁玉琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: aiming at the problem that the currently prepared wave-transparent coating powder is mainly prepared by ceramics, but the connection between the material and the coating base layer is poor, and peeling or other destructive changes are easy to occur during use. A kind of bone charcoal prepared by steaming bovine bones, followed by crushing and carbonization. Due to the good heat resistance of bone charcoal, the expansion rate is low, and at the same time it is grafted with hydrophilic monomer methoxypolyethylene glycol methacrylate, which greatly improves Its adhesion to coatings and base materials effectively solves the problem that the wave-transparent coating powder is mainly prepared by ceramics, but the connection between the material and the coating base layer is poor, and it is easy to peel off or other destructive changes during use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0017] First collect fresh beef bones, wash them and dry them, crush them and sieve them to prepare 20-mesh beef bone particles, then stir and mix them with deionized water at a mass ratio of 1:10, and then heat them at 100°C Boil for 25 minutes, then let stand to cool to room temperature, filter and collect the boiled beef bone particles, dry naturally at 65°C for 6 hours, then grind and sieve to prepare 80-mesh beef bone powder; The bone powder was placed in a tube furnace, and then the air was vented with nitrogen. Under a nitrogen atmosphere, it was preheated at 120°C for 25 minutes, and then the temperature was raised to 550°C at a rate of 10°C / min. Cool to room temperature, collect bone charcoal and grind and sieve to prepare 120 mesh bone charcoal powder; by weight, weigh 10 parts of stearyl methacrylate and 15 parts of methoxypolyethylene glycol methacrylic acid Esters, 3 parts of ethylene glycol dimethacrylate, 2 parts of 1,4-butanediol, 1 part of ammonium persulfate ...

example 2

[0020] First collect fresh bovine bone, wash it and dry it, crush it and sieve it to prepare 25-mesh bovine bone particles, then mix it with deionized water according to the mass ratio of 1:10, and then mix it with deionized water at 102°C Boil for 27 minutes, then let it cool down to room temperature, filter and collect the boiled beef bone particles, dry naturally at 72°C for 7 hours, then grind and sieve to prepare 85-mesh beef bone powder; the beef bone powder prepared above The bone powder was placed in a tube furnace, and then the air was vented with nitrogen to remove the air. Under a nitrogen atmosphere, it was preheated at 135°C for 27 minutes, then the temperature was raised to 575°C at a rate of 10°C / min, and then kept for 2 hours for carbonization. Cool to room temperature, collect bone charcoal and grind and sieve to prepare 125 mesh bone charcoal powder; by weight, weigh 12 parts of stearyl methacrylate, 17 parts of methoxypolyethylene glycol methacrylic acid Est...

example 3

[0023]First collect fresh beef bones, wash them and dry them, crush them and sieve them to prepare 30-mesh beef bone particles, then stir and mix them with deionized water at a mass ratio of 1:10, and then heat them at 105°C Boil for 30 minutes, then let stand to cool to room temperature, filter and collect the boiled beef bone particles, dry in the air and then dry at 80°C for 8 hours, then grind and sieve to prepare 90-mesh beef bone powder; The bone powder was placed in a tube furnace, and then the air was vented with nitrogen. Under a nitrogen atmosphere, it was preheated at 150°C for 30 minutes, then the temperature was raised to 600°C at a rate of 10°C / min, and then carbonized for 2 hours. Cool to room temperature, collect bone charcoal and grind and sieve to prepare 130 mesh bone charcoal powder; by weight, weigh 15 parts of stearyl methacrylate, 20 parts of methoxypolyethylene glycol methacrylic acid Esters, 5 parts of ethylene glycol dimethacrylate, 3 parts of 1,4-but...

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Abstract

The invention discloses a method for preparing bone black high-cohesiveness wave-transparent coating powder and belongs to the technical field of wave-transparent coating preparation. Against the problem that though wave-transparent coating powder prepared at present is prepared mainly through ceramics, the powder is poorly connected with a coating base layer and peeling or other destructive changes occur easily, a method of preparing bone black by cooking beef bone and then crushing and carbonizing the beef bone is provided. The bone black is good in heat resistance and low in expansion rate and is grafted through hydrophilic monomer methoxy polyethylene glycol methacrylic ester, and the performance of adhesion of the bone black to a coating and a base material is greatly improved. The bone black high-cohesiveness wave-transparent coating powder is high in cohesiveness, the hardness of a paint film coating reaches 6 H, the coating adhesive force is larger than the first level, and the coating flexibility is 1.5-2.0 mm. The preparation process is simple and the method is green, environmentally friendly and free of pollution.

Description

technical field [0001] The invention discloses a preparation method of bone charcoal highly cohesive wave-transparent coating powder, which belongs to the technical field of wave-transparent coating preparation. Background technique [0002] With the development of modern warfare, missiles must have higher flight speed, wider strike range and more precise guidance. Therefore, the radome installed on the head of the missile must be able to withstand higher temperatures brought about by aerodynamic heating, must have better thermal shock resistance, and must have good wave transmission performance in a wider frequency band. For the radome with multi-layer wall structure, in addition to the properties of wave transmission and high temperature resistance, the surface material of the radome must have a good performance that must be well combined with the core material. It will not peel off or cause other destructive changes. Only in this way can it play a good role in wave penet...

Claims

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Application Information

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IPC IPC(8): C09D123/12C09D7/12
CPCC09D123/12C08K3/04C08K3/26C08K9/04C08K2003/265C09D7/61C09D7/62
Inventor 丁玉琴高玉刚
Owner 丁玉琴
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