Thermoplastic elastomer foam material and preparation method thereof

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...