Innovation in PVC Foam Board Production Process: Supercritical Technology Leads Green Transformation
Recently, Guangdong Benqi Environmental Protection New Materials Co., Ltd. has achieved a major technological breakthrough in the production of PVC foam boards. The patent application for "A PVC Supercritical Foam Board and Its Preparation Method" (Publication No. CN119978657A) has attracted widespread attention in the industry. This innovative technology not only solves the environmental pain points of traditional processes but also significantly improves product performance, injecting new vitality into the PVC foam board industry.
Traditional PVC foam board production relies on chemical blowing agents, which release irritating gases such as ammonia during the process. Additionally, issues like uneven cell structure and unstable product strength persist. Benqi Environmental Protection's supercritical foaming process replaces traditional blowing agents with supercritical carbon dioxide or nitrogen. By precisely controlling temperature and pressure, it ensures uniform gas dispersion in the PVC resin, eliminating odor emissions and producing high-quality boards with uniform cells, low density, and high strength.
It is understood that the traditional production process involves multiple steps such as raw material mixing, plasticizing extrusion, and cooling shaping. In contrast, the supercritical process simplifies the workflow, reduces energy consumption, and increases production efficiency by over 30%. The raw materials used in this technology include PVC resin powder, stabilizers, modifiers, etc. Through scientific formulation and combination with advanced processes, product quality is ensured to reach international leading standards.
Industry experts point out that this technological breakthrough aligns with the global environmental trend. It is expected to promote the high-end application of PVC foam boards in fields such as architectural decoration and furniture manufacturing, leading the industry towards green and intelligent upgrades.
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