A kind of halogen-free environment-friendly EPDM rubber/negative oxygen ion powder blended closed-cell secondary foaming material and preparation method thereof

Abstract

The invention relates to the technical field of foaming materials and provides a halogen-free and environment-friendly EPDM (Ethylene-Propylene-Diene Monomer) rubber / negative oxygen ion powder mixed closed-cell secondary foaming material and a preparation method thereof. Negative oxygen ion powder of the halogen-free and environment-friendly EPDM rubber / negative oxygen ion powder mixed closed-cell secondary foaming material can be effectively combined with halogen-free and environment-friendly EPDM rubber under the condition that high biological activity of the negative oxygen ion powder is maintained, the dispersity of the negative oxygen ion powder on rubber molecules is effectively improved, original excellent physical properties of the rubber can be effectively reserved, enough negative oxygen ions can be released effectively and sufficiently, a product prepared from the secondary foaming material can continuously release 1,500 negative oxygen ions in each cubic centimeter of space in a static state, can improve ambient air quality and benefits human health; the preparation method of the halogen-free and environment-friendly EPDM rubber / negative oxygen ion powder mixed closed-cell secondary foaming material is simple to operate, easy to implement and suitable for large-scale production.

Description

technical field [0001] The invention relates to a foaming material, in particular to a halogen-free environment-friendly EPDM rubber / negative oxygen ion powder blended closed-cell secondary foaming material and a preparation method thereof. Background technique [0002] In recent years, EPDM foaming materials have been widely used in important industries of the national economy such as automobiles, electronics, electrical appliances, and construction. At the same time, due to the tensile strength of EPDM foaming materials in many fields in the industry , Elongation at break, tear strength, high temperature resistance and other properties have higher requirements, and the odor of EPDM foam materials is relatively heavy, most of which contain halogens (fluorine, chlorine, bromine, iodine), halogens in materials (fluorine, chlorine, bromine, iodine) foaming materials made of more than a certain value will produce a hydrogen halide gas when burned, which will cause suffocation o...

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Problems solved by technology

Plastics, rubber, and rubber products containing tourmaline PHR and tender shale (negative oxygen ion powder) produced according to the aforementioned technology can be widely used in sporting goods, medical protective gear, dining utensils, office supplies, automotive interiors, decorations Materials and other products, when people use and touch such products, these products will exert the characteristics of tourmaline and tender shale (negative oxygen ion characteristics), can purify the surrounding environment and water quality, release negative oxygen ions, stimulate cell activity, and promote plant growth. Growth and development, prevention of electromagnetic radiation, etc., make people benefit from it. However, due to the material differences between rubber materials and tourmaline powder and tender shale, and tourmaline powder and tender shale also have high biological activity, for foaming materials It is difficult to say that the poor dispersion after processing and integration is difficult. If tourmaline powder and tender shale cannot be effectively and evenly dispersed in rubber molecules to form clusters, it will not only affect the quality of rubber products, but also cannot fully release a sufficient amount of negative energy. Oxygen ions cannot give full play to the effect of air energy negative oxygen ion powder, and the concentration of negative oxygen ions released by the product cannot reach 200-400 per cubic centimeter in static state and 400-1000 per cubic centimeter in dynamic state, and there is no improvement The air quality of the surrounding environment and the original intention of being beneficial to physical and mental health, therefore, how to improve the dispersion of negative oxygen ion powder in rubber, reduce costs, and improve the comprehensive physical properties of products, so as to enhance the application range of ecological health is an urgent need to solve in the field of foaming material technology important technical issues

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