rigid polymer
4.A series of rigid core/shell grafting polymer microspheres (marked[C/S]) with different particle diameter were synthesized with crosslinked polystyrene(XPS) or polystyrene(PS) as core and PS or polymethylmethacrylate(PMMA) as shell. The PVC/[C/S] systems were resulted from PVC melt blendins with[C/S].
6.Abstract: In order to solve the roof leakage problems now widely exitst in buildings at home and abroad,this paper proposes the using of steel fiber reinforced polymer cement mortar concrete(SFPCC)as a rigid waterproofing roof material,based on that compounding polymer and cement helps improve construetion density of material.and both of polyer and steel fiber enable to enhance deformability of material.By testing elastic modulus,air shrindage and etc of SFPCC,this material is proved to be feasible in technology.
7.In this paper the thermodynamic compatibility of semi-rigid liquid crystal copolymer and its flexible homolog PET were discussed in theory. By means of polarized microscope, DSC, SEM, DLI, X-ray difraction metheds, etc. the compatibility of the polymer blend was studied.
