【Ten Years of Rapid Development in Chemical Equipment】Reaching international leading levels by 3154-2026! “Evaluation of the achievements in “Key Technologies for Polymer Batch Supercritical Foaming and Its Green Industrial Application”!

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This post was last edited by HaiChuan LaoYu on 2026-6-8 at 21:54. The 25th National “Safety in Production Month” in 2026: Everyone should talk about safety and know how to handle emergencies; identify and address potential risks and hazards. -------------------------------------------------- Let’s praise and support the achievements made in China’s chemical technology and equipment sector. Your participation in discussions is the greatest encouragement. **********************[Ten Years of Development in Chemical Equipment] A continuously updated summary thread – feel free to join the discussions: https://bbs.hcbbs.com/thread-3576046-1-1.html ***************** -------------------------------------------------- Core technologies and product performance are at the international leading level. On May 31st, the research achievement titled “Key Technologies for Polymer Batch Supercritical Foaming and Their Green Industrial Application,” developed by Professor Zhang Zhenxiu’s team from the School of Polymers at Qingdao University of Science and Technology, passed the evaluation of scientific and technological achievements organized by the Chinese Chemical Society. The expert group agreed that the core technologies and product performance of this achievement are at the international leading level, successfully overcoming the critical challenges in the elastomer foaming materials industry. 　　It is reported that supercritical foaming technology is the core technology for the production of high-end foaming materials, and it is widely used in key fields such as new energy, advanced manufacturing, and energy conservation and environmental protection. For a long time, the core manufacturing processes and high-end equipment in this field in our country have been monopolized by foreign companies. There are various shortcomings such as insufficient precision of the equipment, difficulty in controlling bubble formation, and weak green production capabilities, all of which hinder the industry’s high-quality and large-scale development. To address the aforementioned issues, Zhang Zhenxiu’s team has spent nearly 20 years working diligently on this task, and has independently developed a integrated batch-type supercritical green foaming platform technology that combines processes, equipment, and materials, thereby achieving original technological breakthroughs across the entire value chain. 　　At the process level, the team overcame the patent barriers related to international bead foaming technologies by developing a novel supercritical foaming process using batch-type special-shaped mold for transforming small embryos into larger ones. They also established a system for recycling high-pressure nitrogen, achieving a nitrogen recovery rate of over 90%; this approach resolved the challenges associated with producing elastic products with ultra-low density, high dimensional precision, and a uniform pore structure. 　　In terms of equipment, this project overcame various engineering shortcomings related to poor sealing in high-temperature and high-pressure foaming equipment, low precision in temperature and pressure control, and low operational efficiency. It developed a set of fully automatic, quick-opening supercritical foaming molding reactors using clamping-type designs. The pressure release rate of this equipment is 6 times higher than that of international advanced levels, and the temperature control accuracy inside the reactor reaches ±1°C, enabling green large-scale production on a ten-thousand-ton scale. 　　In terms of material modification, the team innovatively developed methods for regulating network structures through grafting, chain extension, crosslinking, as well as pre-crosslinking and secondary crosslinking, which effectively expanded the foaming temperature range and addressed issues such as the difficulty in controlling the pore morphology of elastomers and specialty rubbers during foaming. 　　To date, the project has obtained 38 invention patents, published 51 academic papers, and established a robust system of independent intellectual property rights. In addition, this technology has been deployed on a large scale in various enterprises; over the past three years, it has helped these partners generate sales of over 2.1 billion yuan and profits of over 300 million yuan.