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Thermoplastic elastomer foamed material and preparation method thereof

A thermoplastic elastomer and foaming material technology, applied in the field of thermoplastic elastomer foaming material and its preparation, can solve the problems of large specific gravity, no oxygen absorption function, poor surface scratch resistance, etc., and achieve small specific gravity and compression resistance Excellent, scratch-resistant surface effect

Inactive Publication Date: 2014-09-17
GUANGDONG KINGREAT HITECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing thermoplastic elastomers or materials based on thermoplastic elastomers still have shortcomings such as large specific gravity, poor surface scratch resistance, and no oxygen absorption function, which have caused serious problems for their popularization and application in certain fields. Great constraints

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In the present embodiment, the preparation method of thermoplastic elastomer foaming material comprises the following steps in sequence:

[0023] (1) By weight, the following raw materials are equipped: 40 parts of thermoplastic elastomers (including 34 parts of styrene-based thermoplastic elastomers, 6 parts of polyolefin thermoplastic elastomers, and the styrene content of styrene-based thermoplastic elastomers is 32% ( Weight), molecular weight is 240,000, molecular structure is linear structure), plasticizer 40 parts (both naphthenic oil), polypropylene 20 parts, polyethylene 15 parts, ethylene propylene rubber 8 parts, lubricant 2 parts ( Both are zinc stearate), 8 parts of foam masterbatch, 0.6 parts of oxygen absorber (both are sodium sulfite);

[0024] The above-mentioned foaming masterbatch is composed of azodicarbonamide (i.e. blowing agent AC), low-density polyethylene (LDPE), talcum powder and polyolefin thermoplastic elastomer, azodicarbonamide, low-density...

Embodiment 2

[0030] In the present embodiment, the preparation method of thermoplastic elastomer foaming material comprises the following steps in sequence:

[0031] (1) By weight, the following raw materials are equipped: 30 parts of thermoplastic elastomers (all are styrene-based thermoplastic elastomers, the styrene content is 35% (weight), the molecular weight is 250,000, and the molecular structure is a linear structure) , 45 parts of plasticizer (both are white mineral oil), 25 parts of polypropylene, 10 parts of polyethylene, 10 parts of ethylene-propylene rubber, 0.5 parts of lubricant (both are polymer silicone), 8 parts of foam masterbatch, 0.1 parts of oxygen absorbing agent (both are sodium thiosulfate);

[0032] The above-mentioned foaming masterbatch is composed of azodicarbonamide (i.e. blowing agent AC), low-density polyethylene (LDPE), talcum powder and polyolefin thermoplastic elastomer, azodicarbonamide, low-density polyethylene, talc powder The weight ratio of polyolef...

Embodiment 3

[0038] In the present embodiment, the preparation method of thermoplastic elastomer foaming material comprises the following steps in sequence:

[0039] (1) Prepare the following raw materials by weight: 50 parts of thermoplastic elastomers (including 45 parts of styrene-based thermoplastic elastomers, 5 parts of polyolefin thermoplastic elastomers, and the styrene content of styrene-based thermoplastic elastomers is 30% ( Weight), molecular weight is 200,000, molecular structure is linear structure), plasticizer 30 parts (including naphthenic oil 15 parts, white mineral oil 15 parts), polypropylene 15 parts, polyethylene 20 parts, ethylene propylene rubber 5 parts 1.6 parts of lubricant (including 1.4 parts of zinc stearate and 0.2 parts of polymer silicone), 10 parts of foam masterbatch, 1 part of oxygen absorber (including 0.5 parts of potassium sulfite and 0.5 parts of sodium bisulfite) ;

[0040] The above-mentioned foaming masterbatch is composed of azodicarbonamide (i....

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Abstract

The invention provides a thermoplastic elastomer foamed material. The invention is characterized in that the material is prepared from the following raw materials in parts by weight: 30-50 parts of thermoplastic elastomer, 30-45 parts of plasticizer, 15-25 parts of polypropylene, 10-20 parts of polyethylene, 5-10 parts of ethylene-propylene rubber, 0.5-2 parts of lubricant, 5-10 parts of foaming master batch and 0.1-1 part of oxygen absorbent. The invention also provides a preparation method of the thermoplastic elastomer foamed material. The thermoplastic elastomer foamed material can be used for secondary forming (such as tooth brush rubberization, tool grip rubberization and the like), and can also be used for independent forming (such as bottle cork manufacturing). The thermoplastic elastomer foamed material has the advantages of favorable elasticity, excellent compression resistance, high strength, surface scratch resistance, skid resistance, small specific gravity, and no surface shrinkage and full product forming during secondary forming; and the thermoplastic elastomer foamed material has favorable oxygen absorption function, and thus, is beneficial to food preservation when being used for food sealed packaging.

Description

technical field [0001] The invention relates to a polymer compound composition, in particular to a thermoplastic elastomer foaming material and a preparation method thereof. Background technique [0002] Thermoplastic Elastomer (TPE for short) is a material that has the high elasticity, high strength and high resilience of rubber, and has the characteristics of injection molding processing, that is to say, it has the processing performance of thermoplastics and vulcanized rubber at the same time. physical properties. Thermoplastic elastomers are environmentally friendly, non-toxic, safe, have excellent colorability, soft touch, good weather resistance, fatigue resistance and temperature resistance, excellent processing performance, and can be recycled to reduce use costs. In addition, no vulcanization is required in the production process of thermoplastic elastomers, which greatly simplifies the production process and reduces energy consumption. Thermoplastic elastomers ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/00C08L23/12C08L23/06C08L23/16C08K13/02C08J9/10C08J3/22
Inventor 周荣智丁亮
Owner GUANGDONG KINGREAT HITECH
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