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A kind of preparation method of three-layer composite board for engraving

A technology of composite boards and composite boards, which is applied in the field of preparation of composite boards for engraving, can solve the problems of resource shortage and high cost, and achieve the effects of solving energy shortages, reducing usage, and reducing usage

Active Publication Date: 2019-01-22
YANGZHOU ANCIENT WIRE BOUND IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortage of resources and high cost of the boards of the existing engraving printing woodblocks, the present invention proposes a method for preparing a three-layer composite board for engraving

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1. Mix polypropylene pellets, 200-mesh straw powder, PP grafted maleic anhydride (graft rate 1.05%), and polyethylene wax (PE wax) at a high speed in a weight ratio of 20:70:3:2. Straw plastic composite boards with a thickness of 9 mm or 10 mm are obtained by extrusion molding at a temperature of 180-220 °C.

[0026] The bending strength of the straw plastic composite board mentioned above is 45 MPa, the bending modulus is 5154 MPa, and the impact strength is 11.2 KJ / m 2 , the heat distortion temperature is 115°C, and the density is 1.2 g / cm 3 .

[0027] 2. Use polyurethane hot melt adhesive to bond 1.5 mm thick basswood boards on both sides of the straw plastic composite board to obtain a three-layer composite board for engraving.

Embodiment 2

[0029] 1. Mix polyethylene pellets, 200-mesh straw powder, PE grafted maleic anhydride (graft rate 1.1%), and polyethylene wax (PE wax) at a high speed in a ratio of 20:70:4:2 by weight, Straw plastic composite boards with a thickness of 9 mm or 10 mm are obtained by extrusion molding at a temperature of 180-220 °C.

[0030] The bending strength of the straw plastic composite plate mentioned above is 38 MPa, the bending modulus is 2580 MPa, and the impact strength is 15.8 KJ / m 2 , the heat distortion temperature is 98°C, and the density is 1.22g / cm 3 .

[0031] 2. Use polyurethane hot melt adhesive to bond 1.5 mm thick basswood boards to both sides of the straw plastic composite board to obtain a three-layer composite board for engraving.

Embodiment 3

[0033] 1. Mix polyethylene pellets, 200-mesh straw powder, PE-grafted maleic anhydride (grafting rate 1.1%), and polyethylene wax (PE wax) at a high speed in a weight ratio of 30:60:4.5:5.5. Straw plastic composite boards with a thickness of 9 mm or 10 mm are obtained by extrusion molding at a temperature of 180-220 °C.

[0034] The bending strength of the straw plastic composite board mentioned above is 55 MPa, the bending modulus is 3245 MPa, and the impact strength is 16.8 KJ / m 2 , the heat distortion temperature is 108°C, and the density is 1.25g / cm 3 .

[0035] 2. Use polyurethane hot melt adhesive to bond 1.5 mm thick basswood boards on both sides of the straw plastic composite board to obtain a three-layer composite board for engraving.

[0036] The molecular weight of polyethylene wax (PE wax) in the above examples is 2000-3000.

[0037] 2. Application:

[0038] The three-layer composite board made above is used as the engraving woodblock of engraving printing, and...

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Abstract

A preparation method of an engraving three-layer composite board relates to the technical field of preparation of engraving composite boards. The method comprises uniformly mixing and extrusion-forming polyolefin, straw powder, function additives and polyethylene wax at 180-220 DEG C to obtain a straw-plastic composite board, and then adhering basswood boards on both sides of the straw-plastic composite board with polyurethane hot-melt adhesives to obtain the engraving three-layer composite board. The basswood boards have the advantage of being easy to engrave, and the straw-plastic composite board can provide sufficient mechanical strength for engraving; meanwhile, by utilization waste straw at high added value, expensive universal engraving wood resources such as wild pearwood can be saved.

Description

technical field [0001] The invention relates to the technical field of composite board production, in particular to the preparation technology of composite boards for engraving. Background technique [0002] Polyolefins such as polyethylene (PE) and polypropylene (PP) are widely used in chemistry, electronics, bioengineering, food industry and other related fields because of their excellent physical and chemical properties. However, due to economic considerations, while maintaining the physical and chemical properties of polyolefins, in order to reduce the amount of polyolefins used, filler modification is usually used to achieve this goal. Therefore, at present, many researches on filled polyolefins at home and abroad focus more on the research on inorganic fillers filled polyolefins. By filling fillers, reducing the amount of polyolefins used and adjusting the interfacial bonding performance between fillers and substrates can be obtained. High performance polyolefin compo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L23/12C08L23/06C08L51/06B32B7/12B32B9/02B32B9/04B32B21/08B32B27/06B32B27/18B32B27/32B32B37/12
CPCB32B7/12B32B9/02B32B9/042B32B21/08B32B27/06B32B27/18B32B27/32B32B37/1207B32B2037/1215B32B2307/536B32B2307/554B32B2307/558B32B2307/714B32B2307/734C08L97/02C08L2205/025C08L2205/035C08L23/12C08L23/06C08L51/06
Inventor 常庆海朱爱萍潘展徐丽玲江波
Owner YANGZHOU ANCIENT WIRE BOUND IND CO LTD
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