Non-fading food-grade plastic elastic track and manufacture process thereof

Abstract

The invention provides a non-fading food-grade plastic elastic track and a manufacture process thereof and relates to the technical field of plastic sport fields. The non-fading food-grade plastic elastic track comprises, by weight, 10-20 parts of SEBS (styrene ethylene butylene styrene), 8-12 parts of SBS (styrene butadiene styrene), 8-12 parts of EPDM (ethylene-propylene-diene monomer), 25-35 parts of naphthenic oil, 3-5 parts of maleic anhydride grafted PP (polypropylene), 25-35 parts of an inorganic filler, 0.3-0.8 part of an inorganic pigment, 0.5-1 part of a composite antioxidant, 0.3-0.5 part of an anti-ultraviolet agent, 0.3-0.5 part of a photostabilizer, and 0.3-0.5 part of internal and external lubricants. The manufacture process of the non-fading food-grade plastic elastic trackincludes mixing SEBS, SBS and naphthenic oil at high speed; adding EPDM, maleic anhydride grafted PP, inorganic filler, inorganic pigment, composite antioxidant, anti-ultraviolet agent, photostabilizer and internal and external lubricants at low speed; mixing in a mixer; granulating in an extrusion device, drawing, cooling, and dicing to obtain track particles; mixing the particles with glue to obtain an elastic track base. The non-fading food-grade plastic elastic track rarely fades, is good in environmental friendliness and safety, is odorless and recyclable, is long in service life and short in construction completion time, and is good in process simplicity.

Description

technical field [0001] The invention relates to the technical field of plastic sports fields, in particular to a non-fading food-grade plastic elastic track and its manufacturing process. Background technique [0002] The ground pavement currently used in public places with protection requirements such as runways, courts, and kindergartens is a composite rubber or a composite material of rubber and plastic, but this material has the following defects: [0003] 1. It will volatilize a large amount of toxic and harmful gases containing benzene, xylene, polycyclic aromatic hydrocarbons, etc., even seriously exceeding the standard, and the smell is pungent, which seriously affects the health of users, especially young people. [0004] 2. Poor quality, poor durability, limited mechanical properties, low elasticity, tensile strength, aging resistance and ozone resistance. After long-term wind, sun and rain, surface cracks and cracks will appear in 2 to 3 years. Quality problems s...

AI Technical Summary

Problems solved by technology

[0003] 1. It will volatilize a large amount of toxic and harmful gases containing benzene, xylene, polycyclic aromatic hydrocarbons, etc., even seriously exceeding the standard, and the smell is pungent, which seriously affects the health of users, especially young people.

[0004] 2. Poor quality, poor durability, limited mechanical properties, low elasticity, tensile strength, aging resistance and ozone resistance. After long-term wind, sun and rain, surface cracks and cracks will appear in 2 to 3 years. Quality problems such as seam degumming and bulging

[0005] 3. The construction period is long, and the material itself determines that the base surface needs to be completely dry (moisture content is not more than 10%) before it can be used after the laying is completed. Greater than the height difference of 0.2mm, it will prolong the construction period

[0006] 4. The manufacturing process still adopts the rubber product production process, the process is complicated, and vulcanization is required, resulting in serious pollution in the production process. After the runway is laid, it needs to be naturally deodorized before it can be used

[0007] 5. The fading is serious. Due to technological defects, the runway is easy to fade. After a period of use, the appearance effect will become poor, which will also cause troubles to users.

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