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High-strength antistatic 3D sheet and preparation method thereof

An anti-static and high-strength technology, applied in the field of resin sheet processing, can solve the problems of combustion and explosion, breakdown of mobile phone components, loss of mobile phone life and other problems, and achieve the effect of improving service life, improving mechanical strength and improving heat dissipation.

Pending Publication Date: 2022-07-29
HUIZHOU ZONGSHENG ELECTRONICS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The safety and stability of mobile phones, especially the requirements for electrostatic protection, are relatively high. In the relatively dry environment in autumn and winter, the human body will generate static electricity due to friction. hazards, loss of life of the mobile phone, and even combustion and explosion

Method used

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  • High-strength antistatic 3D sheet and preparation method thereof
  • High-strength antistatic 3D sheet and preparation method thereof
  • High-strength antistatic 3D sheet and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A high-strength antistatic 3D sheet, the preparation method comprising the following steps;

[0054] (1) Preparation of prepreg: S1. Mix nano-diamond powder and toluene solvent, and ultrasonically disperse for 7 minutes to obtain nano-diamond dispersion; under nitrogen atmosphere, drop nano-diamond dispersion into red aluminum solution, under inert gas protection The temperature was raised to 115 °C, reacted for 4 h, washed with distilled water for three times, dehydrated with a vacuum degree of -0.099MpaMpa, and dried to constant weight to obtain pretreated nano-diamond powder;

[0055] S2 Dissolve modified phenolic resin α in dimethylformamide, cool down to -20°C, add cross-linking agent hydroxyethyl cellulose, antioxidant dibutyl hydroxytoluene, pretreated nano-diamond powder, stir for 8 minutes, and then Add polyamide curing agent, stir for 30min, stirring speed is 800r / min to obtain glue;

[0056] S3. Arrange the glass fibers in the mixed solution of PEDOT and sod...

Embodiment 2

[0065] A high-strength antistatic 3D sheet, the preparation method comprising the following steps;

[0066] (1) Preparation of prepreg; S1. Mix nano-diamond powder and toluene solvent, ultrasonically disperse for 9 min, to obtain nano-diamond dispersion; under nitrogen atmosphere, drop nano-diamond dispersion into red aluminum solution, under inert gas protection The temperature was raised to 127°C, reacted for 5h, washed three times with distilled water, dehydrated with a vacuum degree of -0.097Mpa, and dried to constant weight to obtain pretreated nano-diamond powder;

[0067] S2. Dissolve the modified phenolic resin α in dimethylformamide, cool down to -20°C, add crosslinking agent hydroxyethyl cellulose, antioxidant dibutyl hydroxytoluene, pretreated nano-diamond powder, stir for 9 minutes, Then add polyamide curing agent, stir for 32min, stirring speed is 900r / min to obtain glue;

[0068] S3. Arrange the glass fibers in the mixed solution of PEDOT and sodium polystyrene ...

Embodiment 3

[0077] A high-strength antistatic 3D sheet, the preparation method comprising the following steps;

[0078] (1) Preparation of prepreg: S1. Mix nano-diamond powder and toluene solvent, and ultrasonically disperse for 7 minutes to obtain nano-diamond dispersion; under nitrogen atmosphere, drop nano-diamond dispersion into red aluminum solution, under inert gas protection The temperature was raised to 115 °C, reacted for 4 h, washed with distilled water for three times, dehydrated with a vacuum degree of -0.099MpaMpa, and dried to constant weight to obtain pretreated nano-diamond powder;

[0079] S2 Dissolve modified bisphenol A resin α in dimethylformamide, cool down to -20°C, add cross-linking agent hydroxyethyl cellulose, antioxidant dibutyl hydroxytoluene, pretreated nano-diamond powder, and stir for 8 minutes , then add the polyamide curing agent, stir for 30min, and the stirring speed is 800r / min to obtain the glue;

[0080]S3. Arrange the glass fibers in the mixed soluti...

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Abstract

The invention discloses a high-strength antistatic 3D sheet and a preparation method thereof. The preparation method of the 3D sheet material comprises the following steps; the method comprises the following steps: (1) preparing a glue solution, and coating the surface of glass fiber cloth with the glue solution through an electrophoresis method to form a prepreg; (2) attaching a release film to the surface of the prepreg, slitting the prepreg into different shapes, stripping and removing the release film, and stacking the prepreg layer by layer to form a to-be-pressed prepreg; and (3) putting the prepreg to be pressed into a mold, and carrying out compression molding to obtain the high-strength antistatic 3D sheet. The 3D sheet prepared by the invention has good mechanical strength, excellent antistatic property, heat dissipation property and heat resistance, and can be widely applied to cover plates and protective jackets of mobile phones, communication equipment and other electronic products.

Description

technical field [0001] The invention relates to the technical field of resin sheet processing, in particular to a high-strength antistatic 3D sheet and a preparation method thereof. Background technique [0002] With the advent of the Internet era, electronic products such as mobile phones and communication equipment have become indispensable tools in people's lives; especially mobile phones are communication tools that people carry with them; therefore, people are particularly concerned about the safety performance, appearance and use experience of mobile phones. Pay attention to. [0003] As the main components of mobile phones, mobile phone covers and protective shells are particularly important for their safety, stability and experience. The safety and stability of mobile phones, especially the requirements for electrostatic protection, are relatively high. In the relatively dry environment in autumn and winter, the human body will generate static electricity due to fri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/24C08L63/02C08L63/00C08L75/04C08L61/06C08L1/28C08L1/12C08K9/04C08K3/04C08K7/00C08K7/14
CPCC08J5/24C08J2363/02C08J2363/00C08J2375/04C08J2361/06C08J2401/28C08J2401/12C08K2201/011C08K9/08C08K7/00C08K7/14
Inventor 张宗权何辉春
Owner HUIZHOU ZONGSHENG ELECTRONICS MATERIAL CO LTD
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