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Polyethylene composite material for injection molding and preparation method thereof

A composite material and polyethylene technology, which is applied in the field of polyethylene composite materials for injection molding and its preparation, can solve the problems of poor high and low temperature resistance, short service life and low impact resistance.

Pending Publication Date: 2021-05-07
HENAN SENYUAN ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As an important raw material for trailer-type sanitation trash cans, sorting trash cans, turnover boxes, fruit baskets, plastic trays and other products, polyethylene is not only cheap, but also has good processing performance, but a single variety of polyethylene plastic has insufficient comprehensive performance. The single polyethylene product has poor strength, low impact resistance, insufficient toughness, weak anti-aging and UV resistance, weak high and low temperature resistance, easy aging, and short service life of the product

Method used

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  • Polyethylene composite material for injection molding and preparation method thereof
  • Polyethylene composite material for injection molding and preparation method thereof
  • Polyethylene composite material for injection molding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The polyethylene composite material for injection molding of this embodiment is prepared from the following raw materials and auxiliary agents in parts by weight:

[0042] 30 parts of coupling agent modified calcium carbonate, 70 parts of high-density polyethylene, 20 parts of DFDA-7042 linear low-density polyethylene, 10 parts of POE toughening agent, 0.3 parts of UV-327 light stabilizer, main antioxidant (antioxidant Oxygen agent 2246) 0.6 part, secondary antioxidant (antioxidant DLTP) 0.5 part, dispersant PE wax 0.2 part and colorant amount.

[0043] The grade of high-density polyethylene is DMDA-8008.

[0044] The coupling agent modified calcium carbonate is prepared from the following raw materials in parts by weight: 30 parts of calcium carbonate powder and 0.5 part of T-671 titanate coupling agent.

[0045] The polyethylene composite material for injection molding in this embodiment can be used for large-scale injection molding products such as turnover boxes, f...

Embodiment 2

[0047] The polyethylene composite material for injection molding of this embodiment is prepared from the following raw materials and auxiliary agents in parts by weight:

[0048] 20 parts of coupling agent modified calcium carbonate, 60 parts of high-density polyethylene, 40 parts of DFDA-7042 linear low-density polyethylene, 20 parts of POE toughening agent, 0.3 part of UV-327 light stabilizer, main antioxidant (antioxidant Oxygen agent 2246) 0.6 part, secondary antioxidant (antioxidant DLTP) 0.5 part, dispersant PE wax 0.2 part and colorant amount.

[0049] The grade of high-density polyethylene is DMDA-8008.

[0050] The coupling agent modified calcium carbonate is prepared from the following raw materials in parts by weight: 20 parts of calcium carbonate powder and 0.3 part of T-671 titanate coupling agent.

[0051] The polyethylene composite material for injection molding in this embodiment can be used for large-scale injection molding products such as trailer-type sanit...

Embodiment 3

[0053] The polyethylene composite material for injection molding of this embodiment is prepared from the following raw materials and auxiliary agents in parts by weight:

[0054] 20 parts of coupling agent modified calcium carbonate, 50 parts of high-density polyethylene, 50 parts of DFDA-7042 linear low-density polyethylene, 15 parts of POE toughening agent, 0.3 parts of UV-327 light stabilizer, main antioxidant (antioxidant Oxygen agent 2246) 0.6 part, secondary antioxidant (antioxidant DLTP) 0.5 part, dispersant PE wax 0.2 part and colorant amount.

[0055] The grade of high-density polyethylene is DMDA-8007.

[0056] The coupling agent modified calcium carbonate is prepared from the following raw materials in parts by weight: 20 parts of calcium carbonate powder and 0.3 part of T-671 titanate coupling agent.

[0057] Two, the specific embodiment of the preparation method of injection molding polyethylene composite material of the present invention is as follows:

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Abstract

The invention relates to a polyethylene composite material for injection molding and a preparation method thereof, and belongs to the technical field of high polymer materials. The polyethylene composite material for injection molding is mainly prepared from auxiliaries and the following raw materials in parts by weight: 20-30 parts of coupling agent modified calcium carbonate, 50-70 parts of high-density polyethylene, 20-40 parts of linear low-density polyethylene and 10-20 parts of a toughening agent, wherein the melt index of the HDPE is 6-10 g / 10 min, and the melt index of the LLDPE is 1-3g / 10min. The material realizes the balance of rigidity and toughness and is suitable for injection processing because of fluidity, the toughness and environmental cracking resistance are improved by the LLDPE, the normal-temperature toughness and low-temperature toughness are improved by the toughening agent, and the coupling agent modified calcium carbonate and the polymer have good compatibility, so that the polyethylene composite material for injection molding has enough rigidity and heat resistance, and the material can maintain better performance in high-temperature, normal-temperature and low-temperature environments.

Description

technical field [0001] The invention relates to a polyethylene composite material for injection molding and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Polyethylene (PE for short) is a kind of thermoplastic resin obtained by polymerization of ethylene. It is a kind of resin material widely used in general thermoplastic materials, and is widely used in various fields of daily life and industrial production. As an important raw material for trailer-type sanitation trash cans, sorting trash cans, turnover boxes, fruit baskets, plastic trays and other products, polyethylene is not only cheap, but also has good processing performance, but a single variety of polyethylene plastic has insufficient comprehensive performance. The single polyethylene product has poor strength, low impact resistance, insufficient toughness, weak anti-aging and anti-ultraviolet ability, weak high and low temperature resistance, easy ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L23/08C08K13/06C08K9/04C08K3/26C08K5/3475
CPCC08L23/06C08L2207/062C08L2205/06C08L2205/025C08L2205/05C08K2201/005C08K2003/265
Inventor 范昌改李小兰张晓凯谢群超
Owner HENAN SENYUAN ELECTRIC CO LTD
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