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Thermoplastic elastomer foam material and preparation method thereof

A thermoplastic elastomer and foaming material technology, applied in the field of foaming materials, can solve the problems of poor abrasion resistance and compression deformability, high cost of high-elastic foaming materials, and achieve good abrasion resistance and compression deformation, low production cost, simple craftsmanship

Active Publication Date: 2012-12-05
东莞市鑫塑源塑胶科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the adoption of higher content of SEBS and EPDM in the above scheme, lower content of CaCO 3 , so that the high-elastic foamed material produced has high cost, poor abrasion resistance and compression deformation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A kind of preparation method of thermoplastic elastomer foam material, it comprises following preparation steps:

[0041] Step A: Pour 20kg of SEBS into the oil-filled mixing tank, and fill in 30kg of white mineral oil while stirring. The filling time of white mineral oil is ≥ 45 minutes to obtain the oil-filled material, and the oil-filled material is left for more than 24 hours;

[0042] Step B: Add oil-filled materials, 3kg EVA, and 5kg POE into the ingredient mixing tank, stir for more than 10 minutes, add 25kg of calcium carbonate and 0.5kg of zinc stearate, and stir for more than 5 minutes, and discharge after stirring evenly , to get the mixing material;

[0043] Step C: extruding the mixing material through a twin-screw extruder, and then cutting into pellets through a pelletizer to obtain a thermoplastic elastomer foaming material.

[0044] The specific process parameters of the twin-screw extruder are: the temperature of the first zone is 180°C, the temperatu...

Embodiment 2

[0051] A kind of preparation method of thermoplastic elastomer foam material, it comprises following preparation steps:

[0052] Step A: Pour 25kg of SEBS into the oil-filled mixing tank, and fill in 25kg of white mineral oil while stirring. The filling time of white mineral oil is ≥ 45 minutes to obtain the oil-filled material, and the oil-filled material is placed for more than 24 hours;

[0053] Step B: Add oil-filled material, 6kg EVA, and 3kg POE into the ingredient mixing tank, stir for more than 10 minutes, add 30kg of calcium carbonate and 0.3kg of zinc stearate, and stir for more than 5 minutes, and discharge after stirring evenly , to get the mixing material;

[0054] Step C: extruding the mixing material through a twin-screw extruder, and then cutting into pellets through a pelletizer to obtain a thermoplastic elastomer foaming material.

[0055] The specific process parameters of the twin-screw extruder are: the temperature of the first zone is 160°C, the temperat...

Embodiment 3

[0062] A kind of preparation method of thermoplastic elastomer foam material, it comprises following preparation steps:

[0063] Step A: Pour 30kg of SEBS into the oil-filled mixing tank, and fill in 30kg of white mineral oil while stirring. The filling time of white mineral oil is ≥ 45 minutes to obtain the oil-filled material, and the oil-filled material is left for more than 24 hours;

[0064] Step B: Add oil-filled materials, 8kg EVA, and 5kg POE into the mixing tank for ingredients, stir for more than 10 minutes, add 35kg of calcium carbonate and 0.5kg of zinc stearate, and stir for more than 5 minutes, and discharge after stirring evenly , get the mixing material;

[0065] Step C: extruding the mixing material through a twin-screw extruder, and then cutting into pellets through a pelletizer to obtain a thermoplastic elastomer foaming material.

[0066] The specific process parameters of the twin-screw extruder are: the temperature of the first zone is 180°C, the tempera...

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Abstract

The invention relates to the technical field of a foam material, in particular to a thermoplastic elastomer foam material and a preparation method thereof. The thermoplastic elastomer foam material consists of following raw materials in parts by weight: 20 to 30 parts of styrene-ethylene butylene-styrene (SEBS), 20 to 30 parts of white mineral oil, 25 to 35 parts of calcium carbonate, 3 to 8 parts of ethylene vinyl acetate (EVA), 1 to 5 parts of polyolefin elastomer (POE) and 0.1 to 0.5 parts of zinc stearate. Multiple raw materials such as calcium carbonate, EVA and POE are selected to be matched with the SEBS to use, so that the prepared foam material is not only low in cost and good in abradability and compression deformation, but also other physical indexes such as hardness, elasticity and the like are improved. The preparation method is simple in process and low in cost.

Description

technical field [0001] The invention relates to the technical field of foaming materials, in particular to a thermoplastic elastomer foaming material and a preparation method thereof. Background technique [0002] SEBS is a hydrogenated product of thermoplastic elastomer SBS, often called hydrogenated SBS. This hydrogenated SBS has a high content of 1,2 structure, and after hydrogenation, it is composed of polystyrene (S)-polyethylene (E )-polybutene-1(B)-polystyrene (S), so it is called SEBS for short. SEBS has a block and radial molecular structure, so that it can have the same elasticity and physical properties as rubber without vulcanization. The middle part of SEBS is a rubber phase, which has excellent elastic recovery, processing fluidity, and cold resistance. It can be injection molded like a thermoplastic, and SEBS can be used as a toughening modifier. [0003] The Chinese invention patent application with the application number 201110315350.3 discloses a high-ela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L53/02C08L23/08C08K3/26C08K5/098B29B9/06B29C47/92B29C48/92
Inventor 谢宏建
Owner 东莞市鑫塑源塑胶科技有限公司
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