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High-strength and high-heat-resistance diatomite modified acrylate microsphere composite material and preparation method thereof

A technology of acrylate and composite materials, applied in the field of modified materials, can solve the problems of long molding cycle, dust pollution, chemical pollution, etc., and achieve the effects of saving time and cost, delaying creep, and simple preparation process

Inactive Publication Date: 2020-01-07
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Commonly used raw materials are mainly metal powder, ceramic powder and resin powder. Among them, metal and ceramic powder have shortcomings such as long molding cycle and dust pollution, and resin powder materials have certain defects such as chemical pollution.

Method used

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  • High-strength and high-heat-resistance diatomite modified acrylate microsphere composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Weigh 5 parts of diatomite with a particle size of 200±20nm and 0.3 parts of coupling agent γ-(methacryloyloxy)propyltrimethoxysilane in parts by weight, and stir at a high speed at 30°C until uniformly dispersed Add particle diameter again and be 100 parts of methacrylate microspheres of 50 ± 10nm, 0.02 part of antioxidant tetrakis (3,5-di-tert-butyl-4-hydroxyl) pentaerythritol phenylpropionate, antioxidant three ( 0.03 parts of 2,4-di-tert-butyl)phenyl phosphite, 0.1 parts of pentaerythritol stearate as lubricant, 0.05 parts of 2,4-dicarboxybenzophenone as light stabilizer, and 0.1 parts of calcium stearate as heat stabilizer Parts, high-speed stirring at 35°C for 10 minutes until uniformly dispersed; the obtained premixed material was laser sintered to obtain a high-strength and high-heat-resistant diatomite-modified acrylate microsphere composite material.

Embodiment 2

[0032] Weigh 15 parts of diatomite with a particle size of 400±20nm and 0.6 parts of coupling agent γ-(methacryloyloxy)propyltrimethoxysilane in parts by weight, and stir at a high speed at 40°C until uniformly dispersed Add particle diameter again and be 100 parts of methacrylate microspheres of 100 ± 10nm, 0.08 part of antioxidant tetrakis (3,5-di-tert-butyl-4-hydroxyl) pentaerythritol phenylpropionate, antioxidant three ( 0.12 parts of 2,4-di-tert-butyl)phenyl phosphite, 0.2 parts of lubricant pentaerythritol stearate, 0.15 parts of light stabilizer 2,4-dicarboxybenzophenone, 0.2 parts of heat stabilizer calcium stearate Parts, stirred at 45°C for 15 minutes at high speed until uniformly dispersed; the obtained premix was laser sintered to obtain a high-strength and high-heat-resistant diatomite-modified acrylate microsphere composite material.

Embodiment 3

[0034] Weigh 25 parts of diatomite with a particle size of 600±20nm and 0.9 parts of coupling agent γ-(methacryloyloxy)propyltrimethoxysilane in parts by weight, and stir at a high speed at 50°C until uniformly dispersed Add particle diameter again and be 100 parts of methacrylate microspheres of 150 ± 10nm, 0.12 part of antioxidant tetrakis (3,5-di-tert-butyl-4-hydroxyl) pentaerythritol phenylpropionate, antioxidant three ( 0.18 parts of 2,4-di-tert-butyl)phenyl phosphite, 0.3 parts of pentaerythritol stearate as a lubricant, 0.25 parts of 2,4-dicarboxybenzophenone as a light stabilizer, and 0.3 parts of calcium stearate as a heat stabilizer Parts were stirred at 55°C for 20 minutes at high speed until uniformly dispersed; the obtained premix was laser sintered to obtain a high-strength and high-heat-resistant diatomite-modified acrylate microsphere composite material.

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Abstract

The invention discloses a high-strength and high-heat-resistance diatomite modified acrylate microsphere composite material and a preparation method thereof, wherein the composite material is preparedfrom the following components by weight: 100 parts of acrylate microspheres, 5-45 parts of diatomite, 0.3-1.5 parts of a coupling agent, 0.05-0.45 part of a light stabilizer, 0.05-0.5 part of an antioxidant, 0.1-0.5 part of a lubricant, and 0.1-0.5 part of a heat stabilizer. According to the invention, the prepared composite material has characteristics of high strength, high heat resistance, excellent dimensional stability and the like, and the forming speed of the composite material can be greatly increased so as to save the time cost; and the preparation process is simple and free of pollution, and the prepared composite material can be directly applied to the field of laser sintering rapid molding, and can accelerate the expansion of the rapid raw material molding field.

Description

technical field [0001] The invention relates to the technical field of modified materials, in particular to a high-strength and high-heat-resistant diatomite modified acrylate microsphere composite material and a preparation method thereof. Background technique [0002] Laser sintering technology is one of the fastest-growing rapid prototyping technologies. This technology uses powder materials as raw materials, lasers as heat sources, and realizes three-dimensional rapid prototyping through the melting and sintering of raw materials and the three-dimensional movement of the structural platform. This technology is most prominent in the development of desktop R&D-level rapid prototyping due to its fast molding speed, no pollution in the process, and no need for complicated post-processing. Commonly used raw materials are mainly metal powder, ceramic powder and resin powder. Among them, metal and ceramic powder have disadvantages such as long molding cycle and dust pollution, ...

Claims

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Application Information

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IPC IPC(8): C08L33/04C08K13/06C08K9/06C08K7/26C08K5/134C08K5/526C08K5/098
CPCC08K5/098C08K5/1345C08K5/526C08K7/26C08K9/06C08K13/06C08L2201/08C08L33/04
Inventor 杨桂生李枭姚晨光李术
Owner HEFEI GENIUS NEW MATERIALS