High-strength antistatic 3D sheet and preparation method thereof

An anti-static, high-strength technology, applied in the field of sheet processing, can solve problems such as breakdown of mobile phone components, combustion and explosion, and loss of mobile phone life.

Inactive Publication Date: 2021-08-27
HUIZHOU ZONGSHENG ELECTRONICS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 a

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0039] A high-strength antistatic 3D sheet, the preparation method of which comprises the following steps;

[0040] (1) prepare prepreg; S1. get nano diamond powder and toluene solvent to mix, ultrasonic dispersion 7min, obtain nano diamond dispersion; 115°C, react for 4 hours, wash with distilled water three times, dehydrate at a vacuum degree of -0.099MpaMpa, dry to constant weight, and obtain pretreated nano-diamond powder;

[0041] Dissolve the resin in dimethylformamide, cool down to -20°C, add crosslinking agent, antioxidant, and pretreated nano-diamond powder, stir for 8 minutes, then add curing agent, stir for 30 minutes, and the stirring speed is 800r / min, get the glue;

[0042]S2. Arrange the glass fibers in a mixture of PEDOT and sodium polystyrene sulfonate with a mass concentration of 5 mg / mL, soak for 30 minutes, take out the glass fiber cloth, add a phosphoric acid solution with a mass concentration of 30wt.%, and soak for 8 minutes; take out Glass fiber cloth...

Embodiment 2

[0050] A high-strength antistatic 3D sheet, the preparation method of which comprises the following steps;

[0051] (1) prepare prepreg; S1. get nano diamond powder and toluene solvent to mix, ultrasonic dispersion 9min, obtain nano diamond dispersion; 127°C, react for 5 hours, wash with distilled water three times, dehydrate at a vacuum degree of -0.097Mpa, and dry to constant weight to obtain pretreated nano-diamond powder;

[0052] Dissolve the resin in dimethylformamide, cool down to -20°C, add crosslinking agent, antioxidant, and pretreated nano-diamond powder, stir for 9 minutes, then add curing agent, stir for 32 minutes, and the stirring speed is 900r / min. get the glue;

[0053] S2. Arrange the glass fibers in a mixture of PEDOT and sodium polystyrene sulfonate with a mass concentration of 5 mg / mL, soak for 36 minutes, take out the glass fiber cloth, add a phosphoric acid solution with a mass concentration of 30wt.%, and soak for 9 minutes; Glass fiber cloth, wash 3 ...

Embodiment 3

[0061] A high-strength antistatic 3D sheet, the preparation method of which comprises the following steps;

[0062] (1) prepare prepreg; S1. get nano diamond powder and toluene solvent to mix, ultrasonic dispersion 10min, obtain nano diamond dispersion liquid; 135°C, react for 6 hours, wash with distilled water three times, dehydrate at a vacuum degree of -0.095Mpa, and dry to constant weight to obtain pretreated nano-diamond powder;

[0063] Dissolve the resin in dimethylformamide, cool down to -20°C, add crosslinking agent, antioxidant, and pretreated nano-diamond powder, stir for 10 minutes, then add curing agent, stir for 40 minutes, and the stirring speed is 1000r / min. get the glue;

[0064] S2. Arrange the glass fibers in a mixture of PEDOT and sodium polystyrene sulfonate with a mass concentration of 5 mg / mL, soak for 40 minutes, take out the glass fiber cloth, add a phosphoric acid solution with a mass concentration of 30wt.%, and soak for 10 minutes; take out Glass ...

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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 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 glue solution comprises the following raw materials in parts by weight: 90-120 parts of resin, 24-48 parts of a curing agent, 15-17 parts of pretreated nano diamond powder, 2-5 parts of a cross-linking agent and 0.3-0.7 part of an antioxidant. 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 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 age, 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; Pay attention to. [0003] As the main components of the mobile phone, the mobile phone cover and protective case are also 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 friction. Harmful, loss of mobile phone life, and even combustion and explosion. In terms of mobile phone use experience,...

Claims

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Application Information

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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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