Biomass closed-cell secondary foamed material and preparation method thereof

By using biomass materials, primarily polyisoprene rubber and edible vegetable blended oil, combined with additives such as magnesium oxide and iron oxide, a biomass closed-cell secondary foaming material was prepared. This solved the problem of poor dispersibility in rubber foaming materials, achieving low-cost, highly compatible foaming material preparation, extending service life, and reducing pollution.

CN122277981APending Publication Date: 2026-06-26YIBAO FUJIAN POLYMER MATERIALS
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Patent Information

Application Number
CN202610200743.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2022-12-05
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

In existing technologies, the use of aromatic hydrocarbon oils and cycloalkane oils derived from petroleum and mineral paraffin oils in rubber foam materials results in poor phase blending and dispersibility, high cost, poor overall performance, and difficulty in expanding the scope of applications.

Method used

Biomass closed-cell secondary foaming materials are prepared by using polyisoprene rubber and edible vegetable blended oil as the main biomass materials, combined with additives such as magnesium oxide and iron oxide, through processes such as internal mixing, open milling, calendering and extrusion. This replaces petroleum-based derivatives and improves compatibility and vulcanization stability.

Benefits of technology

It improves the fatigue life of rubber, reduces dependence on petrochemical resources, extends the service life of products, reduces the risk of waste pollution, and broadens the scope of applications.

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Abstract

This invention relates to a method for preparing a biomass closed-cell secondary foaming material, comprising a mixture A, edible vegetable blended oil (fatty acid ester), zinc stearate, antioxidant ODA, light calcium carbonate, kaolin, zinc oxide, iron oxide, magnesium oxide, titanium dioxide, vulcanizing agent, and foaming agent AC6000. This invention uses polyisoprene rubber and edible vegetable blended oil as the main components of the foaming material. The edible vegetable blended oil (fatty acid ester) serves as the biomass material for softening the polyisoprene rubber, significantly improving the fatigue life of the rubber. It can be applied in numerous fields to appropriately delay the aging of finished products, extend their service life, and the foaming material is more environmentally friendly, non-toxic, odorless, and pollution-free.
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