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PE (Poly Ethylene) foaming material and preparation method thereof

A foamed material and a technology for preparation steps, applied in the field of PE foamed material and its preparation, can solve problems such as poor rigidity and strength, and achieve the effect of improving rigidity and strength

Pending Publication Date: 2017-09-08
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a PE foam and its preparation method to solve the problem of poor rigidity and strength of ordinary PE foam materials

Method used

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  • PE (Poly Ethylene) foaming material and preparation method thereof
  • PE (Poly Ethylene) foaming material and preparation method thereof
  • PE (Poly Ethylene) foaming material and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0039] A preparation method of PE foam material, comprising the following steps:

[0040] 1) Weigh 60-80 parts of HDPE, 18-24 parts of composite blowing agent, 20-28 parts of EPDM, 18-24 parts of glass fiber, 2-4 parts of PE wax, 2-4 parts EPDM-g-MAH, 0.1-0.5 parts of antioxidant are mixed and stirred evenly to obtain a mixture;

[0041] 2) extruding and granulating the mixture obtained in step 1), to obtain PE expandable pellets;

[0042] 3) Evenly distribute the PE expandable pellets in a closed rigid mold, and then put it into a mold with a constant temperature of

[0043] After heat preservation in an oven at 180-190°C for 8-12 hours, take it out and cool and solidify to obtain a PE foamed product.

[0044] The extrusion granulation in the step 2) adopts a twin-screw extruder, and the twin-screw extruder includes six temperature zones arranged in sequence, the temperature of the first zone is 150-170°C, and the temperature of the second zone is 170-190°C. ℃, the tempera...

Embodiment 1

[0046] 1) Weigh 60 parts of PE, 18 parts of composite blowing agent, 20 parts of EPDM, 18 parts of glass fiber, 2 parts of PE wax, 2 parts of EPDM-g-MAH, 0.1 part of Irganox168, mix and stir evenly to obtain a mixture;

[0047] 2) Extruding and granulating the mixture obtained in step 1), to obtain PE expandable pellets P1.

[0048] 3) Distribute P1 evenly in a closed rigid mold, put it in an oven with a constant temperature of 180°C and keep it warm for 8 hours, then take it out and cool and solidify to obtain a PE foamed product.

[0049] The twin-screw extruder in step 2) includes six temperature zones arranged in sequence, the temperature of the first zone is 150°C, the temperature of the second zone is 170°C, the temperature of the third zone is 170°C, the temperature of the fourth zone is 170°C, and the temperature of the fifth zone is 170°C, six zone temperature 170°C, head temperature 170°C, screw speed 200r / min.

Embodiment 2

[0051] 1) Weigh 80 parts of PE, 24 parts of composite blowing agent, 28 parts of EPDM, 24 parts of glass fiber, 4 parts of PE wax, 4 parts of EPDM-g-MAH, 0.2 part of Irganox1010, 0.2 part of Irganox1330, 0.1 part of Irganox168 and mix them Stir evenly to obtain a mixture;

[0052] 2) Extrude and granulate the mixture obtained in step (1) to obtain PE expandable pellets P2.

[0053] 3) Distribute P2 evenly in a closed rigid mold, put it in an oven with a constant temperature of 190°C for 12 hours, take it out and cool and solidify to obtain a PE foamed product.

[0054] The twin-screw extruder in step 2) includes six temperature zones arranged in sequence, the temperature of the first zone is 170°C, the temperature of the second zone is 190°C, the temperature of the third zone is 190°C, the temperature of the fourth zone is 190°C, and the temperature of the fifth zone is 190°C , the temperature in the six zones is 190°C, the head temperature is 190°C, and the screw speed is 280r...

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Abstract

The invention relates to a PE (Poly Ethylene) foaming material and a preparation method of the PE foaming material. The PE foaming material comprises the following components in parts by weight: 60-80 parts of PE, 18-24 parts of composite foaming agent, 20-28 parts of EPDM (Ethylene-Propylene-Diene Monomer), 18-24 parts of glass fiber, 2-4 parts of PE wax, 2-4 parts of EPDM-g-MAH (Ethylene-Propylene-Diene Monomer grafted Maleic Anhydride) and 0.1-0.5 parts of antioxidant. In the PE foaming material, addition of ZnO can effectively facilitate decomposition of a foaming agent AC (Azodicarbonamide); an N atom of an AC azo group is provided with a lone pair electron and belongs to a lewis base substance, but Zn<2+> of ZnO can receive the lone pair electron and belongs to a lewis acid substance, so that combination of the N atom and Zn<2+> can easily facilitate decomposition of the foaming agent AC; nano CeO2 mainly exerts an effect of a nucleating agent, forms a liquid-solid interface between a melt and gas, and facilitates heterogeneous nucleation of bubbles, so that the activation energy of bubble nucleation and the nucleation number are reduced; and a fine and dense bubble structure with high closed porosity is finally formed.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a PE foam material and a preparation method thereof. Background technique [0002] Polyethylene (PE) foam is an important foam material, widely used in household appliances, machinery parts, office supplies and communication equipment and other fields. PE foam has the advantages of light weight, non-toxic, odorless, and good water absorption, but the rigidity and strength of ordinary PE foam materials are poor, which limits the application of PE foam in some fields. Contents of the invention [0003] The purpose of the present invention is to provide a PE foam and its preparation method to solve the problem of poor rigidity and strength of common PE foam materials. [0004] The present invention is achieved through the following technical solutions: [0005] A kind of PE foam material is made up of following components by weight: [0006] [0007] The PE is high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/16C08L51/04C08K13/06C08K9/06C08K7/14C08K5/526C08K5/134C08J9/10C08J9/04
CPCC08L23/06C08J9/04C08J9/103C08J2203/04C08J2323/06C08J2423/16C08L2203/14C08L2205/02C08L2205/025C08L2205/035C08L2207/062C08L23/16C08L51/04C08L51/003C08K13/06C08K9/06C08K7/14C08K5/526C08K5/1345
Inventor 刘凯徐志海王添琪王泉杰
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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