Multilayer composite material and manufacturing method thereof

A technology of multi-layer composite materials and production methods, applied in the field of multi-layer composite material production, can solve the problems of difficult control of overall thickness uniformity, delamination, delamination, etc., and achieve the solution of difficult control of thickness uniformity, dimensional accuracy and consistency High resistance, the effect of improving the bonding strength

Active Publication Date: 2022-01-18
CHENGDU FSCREEN SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The shortcoming that the aforementioned co-extrusion method makes the multilayer composite material is that the number of layers of the multilayer composite material is limited by the number of layering devices of the extrusion equipment, and the number of layers of the multilayer composite material that can be produced by one extrusion equipment is It has been uniquely determined when the equipment is finalized, and the number of layers of the multilayer composite material cannot be increased arbitrarily; the total thickness of the multilayer composite material and the thickness of each layer are limited by the layering and shaping device of the extrusion equipment, and cannot be made arbitrarily The thickness of each layer cannot make the total thickness exceed the thickness of the multi-layer composite material designed by the extrusion equipment, so that the multi-layer composite material produced by this method cannot meet the application scenarios of ultra-thick multi-layer composite materials; through shunting and The layers of the multi-layer composite material after shaping are in a state of lamination and bonding between planes, which will also lead to low bonding strength between layers, and it is easy to delaminate and delaminate during use; at the same time, divide and shape the device to make each layer The overall thickness uniformity of the plane is extremely difficult to control

Method used

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  • Multilayer composite material and manufacturing method thereof
  • Multilayer composite material and manufacturing method thereof
  • Multilayer composite material and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as figure 1 Shown is a schematic cross-sectional view of the structure of a three-layer composite material containing a substrate layer in Example 1 of the present invention. The three-layer composite material is composed of a substrate layer 101, a microstructure layer 102 and a leveling layer 103 , the microstructure layer 102 includes several identical microstructures, the cross-sectional shape of the microstructures is a semicircular arc, and the cross-sectional shape, tooth pitch and tooth height of the microstructures on the entire microstructure layer 102 are all the same. The microstructure layer 102 is composed of a plurality of linear microstructure arrays. The leveling layer 103 fills and leveles all the arc-shaped tooth-shaped recessed areas of the microstructure array on the entire microstructure layer 102 .

[0043] Further, as figure 2Shown is a schematic cross-sectional view of the structure of a two-layer composite material without a substrate l...

Embodiment 2

[0051] Such as Figure 4 Shown is the cross-sectional view of the structure of the multilayer composite material in Example 2 of the present invention. The multilayer composite material is composed of one substrate layer, three microstructure layers and three filler layers, and the microstructure layers and filler layers are alternately arranged on Substrate surface. Such as Figure 4 As shown in a, all the microstructures 1021 of the microstructure layer have the same cross-sectional shape, which is semicircular. Such as Figure 4 As shown in b, the cross-sectional shape of the microstructure 1021 of the same microstructure layer in the three-layer microstructure layer on the multilayer composite material is completely the same; the cross-sectional shape of the microstructure 1021 of only two microstructure layers in different microstructure layers is the same, showing semi-circular arc; the microstructure 1021 of the other microstructure layer has a different cross-sectio...

Embodiment 3

[0056] Such as Figure 5 Shown is a schematic cross-sectional view of the structure of the multi-layer composite material in Example 3 of the present invention.

[0057] Such as Figure 5 As shown in a, the multilayer composite material is composed of one substrate layer, three microstructure layers and three leveling layers, and the tooth pitch P of the microstructures 1021 on the three microstructure layers are all the same.

[0058] Such as Figure 5 As shown in b, the multilayer composite material is composed of one substrate layer, three microstructure layers and three leveling layers, and the tooth pitch P of the microstructure 1021 on the three microstructure layers is only two layers are the same, and the tooth pitch P of the other layer is different. In this case, the pitch of each microstructure array tooth shape on the multi-layer composite material is the same as that between the layer and the interlayer. Of course, when the composite material has more layers, t...

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Abstract

The invention discloses a multilayer composite material and a manufacturing method thereof. The multilayer composite material comprises at least one microstructure layer and at least one filling layer, a resin material is coated on a base material layer by using a roller mold with a microstructure, and after the resin material is cured, the microstructure on the roller mold is transferred to the base material layer to form the microstructure layers on the substrate layer; and resin materials are coated on the microstructure layers by using the roller mold with a smooth or rough roller surface, the concave areas of the microstructure layers are filled, the filling layers are formed after the resin materials are cured, and the steps are repeated to form the multilayer composite material which is formed by alternately stacking the microstructure layers and the filling layers and contains various microstructure shapes and any thickness. According to the multilayer composite material and the manufacturing method thereof, the problems that the manufacturing of the multilayer composite material in the prior art is limited by equipment and processes, the total thickness, the thickness of each layer and the number of layers cannot be freely and accurately controlled, combination among the layers is not firm, and the layers are prone to delamination are solved.

Description

technical field [0001] The invention belongs to the technical field of multilayer composite material production, and in particular relates to a multilayer composite material and a production method thereof. Background technique [0002] Multi-layer materials used for optical systems or special purposes are composed of multi-layer thin films, and various functions are designed between each layer according to requirements. If applied to optical systems (such as projection screens), the design of multi-layer materials can be To pass light of a certain wavelength range or block light of a specific wavelength, this type of optical element with a multilayer optical film can be composed of a high molecular polymer. Multi-layer material structures for various purposes generally use a co-extrusion (co - ex t rs ion ) manufacturing method (see the invention patent application description and related drawings with the application number CN201210067541.7), this method is to combine each...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C41/22G03B21/60B29L7/00B29L9/00
CPCB29C41/22G03B21/60B29L2007/002B29L2009/00
Inventor 张益民王祖熊李小兵徐前志
Owner CHENGDU FSCREEN SCI TECH
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