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A composite functional diaphragm and its preparation method

A composite function, diaphragm technology, applied in the field of engineering plastics, can solve the problems of differences in thermal expansion coefficient of shrinkage, cracked layers, diaphragm deformation, etc., to achieve the effects of low cost, strong adhesion and easy deployment

Active Publication Date: 2020-08-11
深圳市天博塑胶科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above-mentioned problems existing in the prior art, the object of the present invention is to provide a composite functional membrane and a preparation method thereof. The composite functional membrane with a PC layer, an intermediate functional layer and a PMMA layer three-layer structure, solves the problem of traditional The composite diaphragm of PC and PMMA has the problem of deformation due to stress due to the difference in shrinkage and thermal expansion coefficients when the diaphragm is used, and cracks and delamination in severe cases. The preparation method of the present invention has simple control process, easy operation, high production efficiency, and low cost. Low and pollution-free green environmental protection

Method used

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  • A composite functional diaphragm and its preparation method
  • A composite functional diaphragm and its preparation method
  • A composite functional diaphragm and its preparation method

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Embodiment 1

[0035] Such as figure 1 Shown, a kind of composite function diaphragm comprises polycarbonate PC layer 63, polymethyl methacrylate PMMA layer 61 and is positioned at the composite function between polycarbonate PC layer 63 and polymethyl methacrylate PMMA layer 61 Layer 62; the raw material of the composite functional layer 62 is a silicone compatible coupling agent with two active functional groups, methyl and phenyl.

[0036] In another embodiment, the composite functional layer 62 has a thickness of 5 μm, and may also be 1 μm or 10 μm.

[0037] In another embodiment, the raw material of the composite functional layer 62 further includes a nanoscale anti-ultraviolet and blue light absorber.

[0038] In another embodiment, the raw material of the composite functional layer 62 further includes a nanoscale conductive antistatic agent.

[0039] In another embodiment, the raw materials of the composite functional layer 62 further include a nanoscale anti-ultraviolet and blue li...

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Abstract

The invention discloses a composite functional membrane. The composite functional membrane comprises a PC (polycarbonate) layer, a PMMA (polymethyl methacrylate) layer and a composite functional layerwhich is located between the PC layer and the PMMA layer; and the composite functional layer is made of the raw material of an organic silicon phase-soluble coupling agent with two active functionalgroups of methyl and phenyl. The invention further discloses a preparation method of the composite functional membrane. The prepared composite functional membrane with the three-layer structure of thePC layer, the middle functional layer and the PMMA layer solves the problems that a traditional PC and PMMA composite membrane deforms due to stress and leads to serious fracturing and layer splitting because the contraction and thermal expansion coefficients of PC and PMMA are different, and the preparation method is simple in control technology, easy to operate, high in production efficiency, low in cost, free of pollution, green and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of engineering plastics, and in particular relates to a composite functional diaphragm and a preparation method thereof. Background technique [0002] Polycarbonate (referred to as PC) is a high molecular polymer containing carbonate groups in the molecular chain. Due to the particularity of polycarbonate structure, it has become the fastest-growing general-purpose engineering plastic among the five major engineering plastics. The abbreviated code name of polymethyl methacrylate is PMMA, commonly known as plexiglass, which is by far the most excellent and relatively affordable variety of synthetic transparent materials. [0003] The composite film of PC and PMMA is widely used in mobile phones, automobiles, electronics, optics and medical fields because of its unique mechanical properties, weather resistance and optical properties. This material is produced by co-extrusion. Since PC and PMMA are two differe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/06B32B27/36B32B33/00B29C48/18B29C48/90B29C48/08
CPCB29C48/08B29C48/21B29C48/906B29L2007/00B29L2009/00B32B27/06B32B27/36B32B27/365B32B33/00
Inventor 丁胜民丁真邱筱宁
Owner 深圳市天博塑胶科技有限公司
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