Structure-function-decorating integrated composite material mobile phone protective case and manufacturing method thereof

A mobile phone sheath and composite material technology, which is applied in chemical instruments and methods, clothing, laminating devices, etc., can solve the problems of affecting the signal receiving performance of mobile phones, the patterns are easy to be worn, and the strength is low, so as to maintain the signal receiving performance, Lightweight, high-strength effects

Inactive Publication Date: 2017-04-26
ACC BEIJING SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, similar products on the market generally display the color of the material itself, with a single tone
In order to enhance the modification effect, secondary coating is required to print gorgeous patterns, the process steps are cumbersome, the efficiency is low, and the patterns are easy to be worn
In addition, although the carbon fiber composite mobile phone sheaths currently on the market have high strength, they have a shielding effect on mobile phone signals and affect the signal reception performance of mobile phones. Low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Mold preparation: clean the mold with soft materials, preheat the mold to 35°C, and evenly apply the release agent;

[0028] (2) Cutting: Cut the prepreg with protective film according to the template, which is 20-30mm longer than the edge of the mold. When cutting, pay attention to the model of the material and the direction of the fiber.

[0029] (3) Paving: the surface layer is made of ramie fiber plain fabric prepreg with natural pure white color, and the surface density is 140g / m 2 , resin content is 45%, aramid fiber fabric 120g / m 2 , the resin content is 35%. Use plant fiber fabric for the surface layer, then spread two layers of aramid fiber fabric, and spread plant fiber fabric or unidirectional cloth from the surface to the inside according to 0 / 90 / +45 / -45 / 90 / 0 / in the middle, a total of 10 layers;

[0030] (4) Assembling and bagging: After the concave mold is treated with a coating agent and a brightening agent, it is combined on the mandrel that has be...

Embodiment 2

[0034] Pre-order process is as embodiment 1,

[0035] (1) Paving: the surface layer is made of ramie fiber plain fabric prepreg printed and dyed with exquisite patterns, and the surface density is 140g / m 2 , resin content is 45%, aramid fiber fabric 160g / m 2 , the resin content is 35%. The two kinds of fibers are laid alternately, and the surface layer is made of plant fiber fabric, a total of 8 layers;

[0036] (2) Pressing by molding process. The specific process is to raise the temperature from room temperature at a rate of 1-3°C / min, initially pressurize at a pressure of 0.5-0.7Mpa, hold at 130°C for 120 minutes, and then drop to 60°C to open the mold. After forming, there are decorative patterns on the surface, and the thickness is 0.85mm.

Embodiment 3

[0038] Pre-order process is as embodiment 1,

[0039] (1) Paving: The surface layer is made of ramie fiber plain fabric prepreg with natural pure white color, and the surface density is 140g / m 2 , resin content is 45%, aramid fiber unidirectional tape 120g / m 2 , the resin content is 35%. Use plant fiber fabric for the surface layer, and spread aramid fiber unidirectional cloth from the surface to the inside according to 0 / 90 / +45 / -45 / 90 / 0 / in the middle, and then spread a layer of plant fiber fabric for a total of 10 layers;

[0040] (2) Assembling and bagging: After the concave mold is treated with a coating agent and a brightening agent, it is combined on the mandrel that has been paved with materials, and put into a vacuum bag together, and the vacuum is pumped to 0.01Mpa to check the airtightness of the vacuum bag;

[0041] (3) Hot press curing: Combine the vacuum bag system into the autoclave, connect the vacuum pipeline, close the autoclave, and heat and pressurize to s...

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Abstract

The invention belongs to the technical field of composite materials and manufacturing thereof, and relates to a structure-function-decorating integrated composite material mobile phone protective case and a manufacturing method thereof. The mobile phone protective case is manufactured from a composite of a synthetic fiber prepreg and a natural plant fiber prepreg through mold pressing and vacuum bag or autoclave molding process; the surface density of the natural fiber prepreg is 80-200g/m<2> and a resin content is 45%; a natural fiber fabric is subjected to bleaching, rinsing, dyeing, painting and transfer to be converted into a reinforced plant fiber fabric with various colors or patterns; the surface density of the synthetic fiber prepreg is 80-160g/m<2> and a resin content is 30-40%; and a synthetic fiber fabric is formed by aramid fibers or ultrahigh molecular weight polyethylene fiber or the synthetic fiber fabric is a mixed braided fabric of the two synthetic fibers. The protective case, which achieves the comprehensive use of the high strength of the synthetic fibers and the shock-absorbing damping property of the natural fabric fibers, has the properties of being high in strength and anti-impact; the protective case is capable of effectively protecting a mobile phone from extrusion damage and impact damage; and meanwhile, the protective case can keep the original signal receiving performance of the mobile phone.

Description

technical field [0001] The invention belongs to the technical field of composite materials and their preparation, and relates to a composite mobile phone sheath with integrated structure, function and decoration and a preparation method thereof. Background technique [0002] With the rapid advancement of technology, mobile phones have integrated more and more functions: telephone, computer, TV, MP3, camera, letter, bank and so on. In the actual information society of 21, mobile phones have become popular and have become an inseparable and important part of our lives. It can be said that the mobile phone is already our friend, partner, and assistant. It expands our human instincts and makes us clairvoyant and clairvoyant. [0003] According to the latest data, in 2015, the number of mobile phone users in the world will exceed the total population of the world for the first time. The total global population will exceed 7.4 billion, while the total number of mobile phone user...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A45C11/00B32B9/02B32B9/04B32B27/34B32B27/32B32B37/06B32B37/10
CPCA45C11/00A45C2011/002B32B5/02B32B5/26B32B37/06B32B37/10B32B2262/0253B32B2262/0261B32B2262/065B32B2262/14B32B2307/554B32B2307/558
Inventor 张旭锋益小苏仝建峰
Owner ACC BEIJING SCI & TECH CO LTD
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