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Printable rotational molding polyethylene composite material and preparation method thereof

A composite material and polyethylene technology, which is applied in the field of printable rotomolded polyethylene composite materials and its preparation, can solve the problems of unfavorable polyethylene material industry development, limited polyethylene material application, low surface energy, etc., to improve printability Sexuality, increase in cohesion, and the effect of improving cohesion

Inactive Publication Date: 2020-05-01
肇庆国立新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the low surface energy of polyethylene, there will be problems such as difficult printing, difficult bonding, and difficult compounding in packaging printing. These defects severely limit the application of polyethylene materials in the packaging field.
In industry, the corona method is usually used to treat the surface of polyethylene to improve its printability. However, the process is complicated and the cost is high, which is not conducive to the industrial development of polyethylene materials.

Method used

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Examples

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preparation example Construction

[0022] In one embodiment, the preparation method of the regenerated polyethylene includes at least the following steps: stirring and mixing the polyethylene with a polymerization inhibitor, an antioxidant, and an auxiliary agent, followed by pyrolysis and granulation; the pyrolysis and granulation includes in turn: Preheating section, cracking section, and cooling section; the temperature of the preheating section is 200-210°C, the screw speed is 40-50 rpm, and the time is 0.5-2min; the temperature of the cracking section is 300-310°C , the screw speed is 200-220 rpm, and the time is 0.5-2 min; the temperature of the cooling section is 130-150 ° C, the screw speed is 30-40 rpm, and the time is 0.5-2 min, and finally the recycled polymer is prepared. vinyl.

[0023] In a preferred embodiment, the preparation method of the regenerated polyethylene includes at least the following steps: stirring and mixing polyethylene with hydroquinone, antioxidant 168, antioxidant DLTP, and cal...

Embodiment 1

[0066] Example 1 of the present invention provides a printable rotomoulding polyethylene composite material, comprising the following components in parts by weight: 100 parts of recycled polyethylene, 30 parts of auxiliary agent, 5 parts of dispersant, 2 parts of antioxidant, 8 parts of filler, 6 parts of PE grafted maleic anhydride.

[0067] The preparation method of the regenerated polyethylene comprises the following steps: stirring and mixing the polyethylene with hydroquinone, antioxidant 168, antioxidant DLTP, and calcium oxide, and then cracking and granulating; the cracking and granulating includes in turn: Hot section, cracking section, cooling section; the temperature of the preheating section is 200°C, the screw speed is 40 turns / min, and the time is 1min; the temperature of the cracking section is 300°C, and the screw speed is 200 turns / min, The time is 1 min; the temperature of the cooling section is 130° C., the screw speed is 30 rpm, and the time is 1 min, and t...

Embodiment 2

[0078] Example 2 of the present invention provides a printable rotomoulding polyethylene composite material, comprising the following components in parts by weight: 80 parts of recycled polyethylene, 10 parts of auxiliary agent, 1 part of dispersant, 1 part of antioxidant, 2 parts of filler, 1 part of PE grafted maleic anhydride.

[0079] The preparation method of the regenerated polyethylene comprises the following steps: stirring and mixing the polyethylene with hydroquinone, antioxidant 168, antioxidant DLTP, and calcium oxide, and then cracking and granulating; the cracking and granulating includes in turn: Hot section, cracking section, cooling section; the temperature of the preheating section is 200°C, the screw speed is 40 turns / min, and the time is 1min; the temperature of the cracking section is 300°C, and the screw speed is 200 turns / min, The time is 1 min; the temperature of the cooling section is 130° C., the screw speed is 30 rpm, and the time is 1 min, and the r...

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Abstract

The invention relates to the technical field of high polymer materials, in particular to a printable rotational molding polyethylene composite material and a preparation method thereof. The regenerated polyethylene material at least comprises the following components in parts by weight: 80-120 parts of regenerated polyethylene, 10-50 parts of an auxiliary agent, 1-10 parts of a dispersing agent, 1-5 parts of an antioxidant, 2-15 parts of a filler and 1-10 parts of PE grafted maleic anhydride. According to the invention, the printable rotational molding polyethylene composite material is prepared from the regenerated polyethylene, the auxiliary agent, the dispersing agent, the antioxidant, the filler and the PE grafted maleic anhydride, so that the prepared composite material has excellentmechanical properties, high tensile strength and bending strength, good printability, excellent printing effect and low preparation cost.

Description

technical field [0001] The invention relates to the technical field of polymer materials, and more specifically, the invention relates to a printable rotationally molded polyethylene composite material and a preparation method thereof. Background technique [0002] Polyethylene is a type of plastic that consumes more. It has excellent performance, light weight and softness, low price, odorless and non-toxic, strong corrosion resistance, good electrical insulation, and low water absorption. These excellent properties make it widely used in the field of packaging. Polyethylene used as a packaging material has the advantages of lightness, transparency, moisture resistance and oxygen resistance, good air tightness, toughness, folding resistance, and smooth surface. It can also protect the product and reproduce the shape and color of the product. [0003] However, due to the low surface energy of polyethylene, there will be problems such as difficult printing, difficult bonding,...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/06C08L93/04C08L67/02C08K13/02C08K3/22C08K5/523C08K5/134
CPCC08L23/06C08L2205/035C08L2207/20C08K2003/2227C08L51/06C08L93/04C08L67/02C08K13/02C08K3/22C08K5/523C08K5/1345
Inventor 黄喜劳嘉亮乔志龙
Owner 肇庆国立新材料有限公司
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