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High-hardness composite material

A composite material and high hardness technology, which is applied in the direction of synthetic resin layered products, coatings, layered products, etc., can solve the problems of film gloss and transparency imaging, glass is easy to break, coating is easy to fall off, etc.

Inactive Publication Date: 2018-11-06
DONGGUAN ZHONGBANG AUTOMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] One is that the glass is easy to break and there are potential dangers, and the glass is relatively heavy, which is not conducive to the development of thinner and lighter mobile phones or tablets;
[0004] The second is that the glass material touch screen cover plate in the prior art has a small haze, which makes it impossible to see the content displayed on the mobile phone when looking at the mobile phone under sunlight. The light intensity accounts for the percentage of the total transmitted light intensity, and the greater the haze, the lower the gloss and transparency of the film, especially the imaging degree
[0005] For the first defect, there are currently touch screen covers made of PMMA, but the flexibility or bending strength of PMMA is insufficient, and it is easy to cause deformation when used on a touch screen
[0006] For the second defect, the current main solution is to perform a chemical coating operation on the glass cover, using the unevenness caused by the particles in the coating to increase its haze, but the coating formed by this method is easy to fall off, And it is easy to cause uneven distribution of particles, which affects the use effect

Method used

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  • High-hardness composite material
  • High-hardness composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Such as figure 1 As shown, the high-hardness composite material provided in this embodiment, from top to bottom, the composite material sequentially includes a first polycarbonate layer 1, a polymethyl methacrylate layer 2 and a second polycarbonate layer 3, the first polycarbonate layer The upper surface of the carbonate layer 1 is printed with a nano transparent film 4;

[0030] The preparation method of composite material at least includes the following steps:

[0031] In the first step, in the multi-slit coating equipment, the molten first polycarbonate, the molten polymethyl methacrylate and the molten second polycarbonate are simultaneously injected from three adjacent slits. Shot into the cooling roll, so that the three molten layers are solidified and formed at one time to obtain the main material;

[0032] In the second step, the nano-transparent film is printed on one of the surfaces of the main material by a roller.

[0033] Wherein, the thickness ratio of...

Embodiment 2

[0038] Such as figure 1 As shown, the high-hardness composite material provided in this embodiment, from top to bottom, the composite material sequentially includes a first polycarbonate layer 1, a polymethyl methacrylate layer 2 and a second polycarbonate layer 3, the first polycarbonate layer The upper surface of the carbonate layer 1 is printed with a nano transparent film 4;

[0039] The preparation method of composite material at least includes the following steps:

[0040] In the first step, in the multi-slit coating equipment, the molten first polycarbonate, the molten polymethyl methacrylate and the molten second polycarbonate are simultaneously injected from three adjacent slits. Shot into the cooling roll, so that the three molten layers are solidified and formed at one time to obtain the main material;

[0041] In the second step, the nano-transparent film 4 is printed on one of the surfaces of the main material by a roller.

[0042] Wherein, the thickness ratio ...

Embodiment 3

[0047] Such as figure 1 As shown, the high-hardness composite material provided in this embodiment, from top to bottom, the composite material sequentially includes a first polycarbonate layer 1, a polymethyl methacrylate layer 2 and a second polycarbonate layer 3, the first polycarbonate layer The upper surface of the carbonate layer 1 is printed with a nano transparent film 4;

[0048] The preparation method of composite material at least includes the following steps:

[0049] In the first step, in the multi-slit coating equipment, the molten first polycarbonate, the molten polymethyl methacrylate and the molten second polycarbonate are simultaneously injected from three adjacent slits. Shot into the cooling roll, so that the three molten layers are solidified and formed at one time to obtain the main material;

[0050] In the second step, the nano-transparent film 4 is printed on one of the surfaces of the main material by a roller.

[0051] Wherein, the thickness ratio ...

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Abstract

The invention belongs to the technical field of composite materials, and particularly relates to a high-hardness composite material. The high-hardness composite material sequentially comprises a firstpolycarbonate layer, a polymethyl methacrylate layer and a second polycarbonate layer from up to down, wherein a nanometer transparent film is printed on the upper surface of the first polycarbonatelayer. A preparation method comprises the following steps of 1, in multi-slit coating equipment, respectively ejecting molten polycarbonate, molten polymethyl methacrylate and molten polycarbonate through three adjacent silts into a cooling roller so that the three molten layers are cured and shaped in one step to obtain a main body material; 2, printing the nanometer transparent film onto one surface of the main body material through a roller. Compared with the prior art, the composite material has the advantages that through ingenious compounding of PMMA and PC and using an ingenious production process, phenol makes the whole material have the following advantages of light weight, high transparency, high light transmission rate, high hardness, high transmission rate, proper fog degree, proper softness, bending avoidance and cracking avoidance.

Description

technical field [0001] The invention belongs to the technical field of composite materials, in particular to a high-hardness composite material. Background technique [0002] Traditional touch screen covers of mobile phones or tablet computers are made of glass, but glass touch screen covers have at least the following defects: [0003] One is that the glass is easy to break and there are potential dangers, and the glass is relatively heavy, which is not conducive to the development of thinner and lighter mobile phones or tablets; [0004] The second is that the glass material touch screen cover plate in the prior art has a small haze, which makes it impossible to see the content displayed on the mobile phone when looking at the mobile phone under sunlight. The light intensity accounts for the percentage of the total transmitted light intensity, and the greater the haze, the lower the gloss and transparency of the film, especially the imaging degree. [0005] For the first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/08B32B27/30B32B27/36B32B33/00
CPCB32B27/08B32B27/308B32B27/365B32B33/00B32B2255/10B32B2255/26B32B2307/412
Inventor 许振相叶志伟
Owner DONGGUAN ZHONGBANG AUTOMATION TECH CO LTD
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