【3D Process Flow】--EVA (Ethylene-Vinyl Acetate Copolymer)
Thread Content
【3D Process Flow】Summary Post – Useful for learning about the process flow: https://bbs.hcbbs.com/thread-5711616-1-1.html ---------------------------------------------------------- EVA (Ethylene-Vinyl Acetate Copolymer) is an important polymer material in the chemical industry; it is formed by the copolymerization of ethylene and vinyl acetate (VA). Based on the VA content, it is divided into three categories: thermoplastic EVA with a VA content of 5–40% (used for foaming, films, etc.), EVA elastomers with a VA content of 40–70%, and emulsion EVA with a VA content of 70–95%. The main production processes are high-pressure free radical polymerization (tubular or batch method) and low-pressure solution polymerization. EVA possesses excellent flexibility, stress-cracking resistance, low-temperature performance, and good fillability, and is widely used in fields such as foam materials, hot-melt adhesives, wires and cables, and photovoltaic encapsulation films.
【Ten Years of Rapid Development in Chemical Equipment】2984–2026: Domestic production and use of rotary valves, key components in aromatic hydrocarbon adsorption and separation units at Shanghai Petrochemical Industry https://bbs.hcbbs.com/thread-5712074-1-1.html (Source: Haichuan Chemical Forum (HCBBS))
【Ten Years of Rapid Development in Chemical Equipment】2984–2026: Domestic production and use of rotary valves, key components in aromatic hydrocarbon adsorption and separation units at Shanghai Petrochemical Industry https://bbs.hcbbs.com/thread-5712074-1-1.html (Source: Haichuan Chemical Forum (HCBBS))
【HaiChuan Safety Discussion】-- Lack of DN65 size test pipes and drainage measures for the outlet pipes of enterprise fire pumps https://bbs.hcbbs.com/thread-5712095-1-1.html (Source: HaiChuan Chemical Forum (HuaHaiChuanLiu hcbbs))
【Ten Years of Rapid Development in Chemical Equipment】From 2987 to 2026, Weifang Gaomi Haomai delivered multi-axis centrifugal compressors capable of handling 180,000 standard cubic meters of air. https://bbs.hcbbs.com/thread-5712097-1-1.html (Source: Huchuan Chemical Forum (Hua Hai Chuan Liu hcbbs))
【Ten Years of Rapid Development in Chemical Equipment】2978–2026: The first “Lighthouse Factory” in the global fiber industry is established by Huafeng Chongqing Spandex https://bbs.hcbbs.com/thread-5711458-1-1.html (Source: Haichuan Chemical Forum (Hua Hai Chuan Liu hcbbs))