Research On The Technology Of PC/ABS Alloy

PC/ABS alloy that made from polycarbonate and acrylonitrile-butadiene-styrene copolymer (ABS) is an important kind of engineering plastic alloy. PC/ABS alloy possesses not only noticeably superior mechanical properties and moldability, but also excellent (low-temperature) strength, high heat resistance and light stability. In comparison to pure polycarbonate , PC/ABS alloy comprises low melt viscosity, good (low-temperature) strength and improved processing properties, make PC/ABS blends particularly suitable for interior and exterior automotive applications, for example. Their full range of properties, comprising high heat distortion temperature, and improved processing properties in comparison to ABS, make PC/ABS alloy particularly suitable for automotive applications, electric/electronic materials and office equipments,ect.In this paper, the choice of polymerization system PB, agglomeration technology development, the choice of graft polymerization system, agglomerate technologies, was used to PC/ABS alloy polymerization of the PB formula and process conditions, formula and agglomeration process conditions, graft polymerization, emulsion method, such as formula and process conditions.Conclusion:(1) The active functional groups are polymerized into ABS polymer by the emulsion grafting polymerization. The compatibility of PC/ABS alloy is improved by means of which active functional groups are polymerized with the hydroxyl orcarboxyl groups of PC;(2) The blend technology and proper proportion of PC/ABS alloy is studied,while the prepared PC/ABS alloy has excellent properties.The product's impact strength 750-760 J / M, the tensile strength of 55-60 MPa, the melt index 2.3-2.5 g/10min, the thermal deformation of 128-135 degrees, they are entirely up to international standards of quality PC/ABS alloy.