Preparation method of low-voc low-odor EPDM (ethylene-propylene-diene monomer) foam

By using low VOC materials and processes in the preparation process of EPDM foaming materials, controlling the mixing and vulcanization conditions, and adopting dust-proof packaging, the problems of VOC and odor in foaming materials are solved, the goals of low VOC and low odor are achieved, and environmental protection performance and market acceptance are improved.

CN119708598AInactive Publication Date: 2025-03-28SHANDONG JUWAN NEW ENERGY MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202411945131.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

After the preparation of EPDM foaming materials, volatile organic compounds (VOCs) and odors will be produced, affecting the environment and human health.

Method used

The preparation method of EPDM foaming with low VOC and low odor is adopted. By using EPDM rubber and inorganic filler, combined with low VOC or VOC-free modifiers and foaming agents, the mixing temperature and addition time are controlled, molded vulcanization foaming and second-stage vulcanization are carried out, and dust-proof and moisture-proof packaging materials are used.

Benefits of technology

It significantly reduces the VOC content and odor intensity, meets modern environmental protection requirements, improves the market acceptance and user experience of products, and optimizes the production process, improves production efficiency and product stability.

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Abstract

The invention relates to the technical field of ethylene-propylene-diene monomer foaming, in particular to a low-voc low-odor ethylene-propylene-diene monomer foaming preparation method which comprises the following steps: S1, raw materials: 100 parts by mass of ethylene-propylene-diene monomer (EPDM); 70-90 parts by mass of a filler (white carbon black); 1-2 parts by mass of a processing aid; 2-3 parts by mass of a vulcanizing agent and an auxiliary agent; 1-2 parts by mass of an active agent stearic acid; 7-9 parts by mass of an active agent zinc oxide; 2-3 parts by mass of a dispersant; 7-9 parts by mass of a foaming agent (such as AC); 2-3 parts by mass of an antioxidant; 2-3 parts by mass of protective wax; 30-35 parts by mass of a softening agent; and 7-9 parts by mass of a reinforcing agent. The ethylene-propylene-diene monomer foaming material prepared by the preparation method disclosed by the invention realizes the targets of low VOC and low odor, meets the modern environmental protection requirements, and improves the market acceptability and user experience of products.
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