Shanghai Daoqin Plastics Co., Ltd.

         polyurethane ester is through acid ester and more alcohol reaction formed polymer. this polymer hardness, hardness and density scope/range non 常广泛, usually used for manufacturing high elastic foam base/seat 椅, hard foam insulation sheet/plate, foam base/seat and sheet/slice, elastic property and 轮胎, high property can viscous agent and surface coating, and sealant.

        就数 amount 而言, polyurethane ester foam as is soft or hard foam most is important, furniture market is most important field/area. full year for furniture 垫子, carpet and and other demand ultra- 500 10,000 tons.

         another, due to construction, electronics, automotive and packaging use material and other other field/area in 越 越 more use light and insulation material, in recent years full for polyurethane ester material demand growth.

         key/critical polyurethane ester waste material

        因 is this material 质时会释放出例如异氰 acid ester, hydrogen acid and 二恶英 and other many has chemical material 质, polyurethane ester waste material formed is issues. in waste 填埋场 in polyurethane ester product separation understanding formed ring has material 质. remove outer, due to large more polyurethane ester is hot solid property polymer, in add hot 时不会熔化, therefore currently very difficult for polyurethane ester recycling.

        越 越 more poly more sustainable production methods, therefore already in research upper research, through machine recycling polymer (即 will 旧 床垫 foam formed insulation material) or through chemical recycling achieve polyurethane ester recycling.

        考虑 to this 一点, 由Steven Zimmerman教授领导 伊利诺伊 large 学团队 development types separation understanding polyurethane ester waste material will its is other has use product methods.

        改变 more alcohol structure

         research 生Ephraim Morado希望 through chemical methods, heavy new utilizing polymer solution polyurethane ester waste material issues. is, polyurethane ester tool has high stability property, and difficult separation understanding types separation made formed: acid ester and more alcohol. its high stability property make its in upper to application.

         more alcohol is issues key/critical, is it 们提取自石油 and easy degradation. is this difficult, research small using/adopting types more easy degradation and water solvent property chemical mono shrink aldehyde.

         room temperature lower use chlorine acid and chlorine solvent understanding polymer solvent understanding formed degradation material can used for production new material. as is concept 证明, Morado can will in packaging and automotive parts in use elastomer is viscous agent.

         research will in USA chemical full 国会议 and expo upper report 他们 发现.

        齐默曼教授 comments 说, this type of new recycling methods most large is used for reaction raw materials cost and property. therefore, research currently positive in 尝试寻找一 types more good, more methods, use temperature and solvent agent (例如醋)进行 degradation achieve same process.

        尽 tube/pipe still has very long need 走, this is solution day heavy ring issues important 第一步.