MACHINERY RECYCLING EXPERIMENT AND STUDY ON THE DEGRADATION CHARACTERISTICS FOR WASTE THERMOSETTING PLASTICS
Waste thermosetting plastics are considered to be a difficulty of recycling of polymeric materials due to its three-dimensional reticular cross-linkage structure and the complexity of the types of materials.Take the hard thermosetting polyurethane plastic which is widely used in the market as the research object and deferent from the traditional methods, this paper puts forward waste thermosetting plastics recycling process based on mechanical and physical methods.Through strong shear, extrusion, grinding and other mechanical forces combined with the frictional heat generated, not only the physical properties and morphology of the material change, but also the molecular structure and chemical properties of the material change and produce degradation.The paper has analyzed the degradation mechanism of polyurethane and influencing factors based on mechanical and physical methods.At last the reasonable parameters of effective degradation are obtained, which are combined with the actual experimental results.
Thermosetting polyurethane Mechanical and physical methods Degradation Recycling
WU ZHONG-WEI LIU ZHI-FENG HE PING PAN SHAO-BO
School of Mechanical & Automotive Engineering,Hefei University of Technology,Hefei,Anhui,230009,Chin School of Mechanical & Automotive Engineering,Hefei University of Technology,Hefei,Anhui,230009,Chin
国际会议
成都
英文
549-555
2011-11-25（万方平台首次上网日期，不代表论文的发表时间）