Study On Green Engineering Application Of Two Polymer Materials

With the development of industry of polymer materials, it provides high-strength and low-cost products of rubber, plastics and composite materials to people, but it also provide environmental pollution and other issues to social. Green Material (environmental material) means that with the entire process of production, preparation, uses and discretion after use, it has fewer resources and less energy consumption, lower emissions and less environmental impact. The green engineering of material contains manufacturing process, service process and regeneration process of waste of the green materials, do systematic study to the entire cycle, in order to achieve the whole process of synthesis results in favor of environmental protection in the process.In this paper, carry out integrated odor measurement to automotive interior materials, in order to control the quality and evaluate the impact of its environmental impact. We enhanced the positive contribution of this material to reduce environmental impact through effective recycling of thermoplastic and fiberglass scrap. At the same time, conduct a comprehensive analysis of the odor substances which produced from recycled plastic of dry chemical modification process of mechanical force powder, and the purpose is providing the required technical parameters for reduce gas emissions of the rubber green recycling process. Based on the two typical kinds of polymer composites products, plastic and rubber, and volatile substance detection as the starting point, do a preliminary comprehensive study to green engineering process polymer materials, and to explore the possible ways to evaluate its environmental impact.Firstly, with automotive interior materials as research object, using different methods to test the content of formaldehyde and selected carefully for some conditions. Optimized methods and conditions, selected a series of methods and assessed the quality of the material. Do product early environmental and health quality control.Secondly, the organic volatile gas components of automotive interior materials were systematically studied. By static headspace-gas chromatography test, and adjust the parameters during the test, compared the way of storing samples; Discussed the impact to different equilibrium temperature or equilibrium time of TVOC test results. Optimization testing program is that using DB-WAX column, headspace equilibrium temperature is set to 130℃, equilibrium time of 1.5h, the volume of vial bottle is 20mL. It can obtain a relatively accurate test results under these conditions, and high efficiency. The long-term test results were summarized to establish a database and compare with the traditional smell test program. Combine the results of an objective description with the scientific experiments data for systemly evaluation, perfect the concept of green materials.Thirdly, overcome the technical difficulties of recycle scrap about glass fiber reinforced material, recycling scrap, reducing solid waste, improve resource utilization of the material; the polypropylene-based composite material has good mechanical properties, regeneration process is clean environment, improve the overall process of green engineering about automotive interior materials.Finally, initially established the preparation process of the modified powder/natural rubber and glue, modificated powder by twin screw strong mechanical shearing force and chemical reagents, Mixing it with natural rubber. For a large amount of odor processed during the rubber modified, the ambient air tests are carried out. Use activated carbon for gas adsorption, solvent analysis and GC-MS analysis for testing, do quantitative analysis of BTEX in the air, found the content of BTEX is rising with the temperature; do qualitative analysis of other volatile components in the air, it have detected 4-methyl-octane, undecane, tris (trimethylsilyl) silane, chloroform, pentadecane, styrene, etc. Adjusted the parameters of extruder. Compare the change of mechanical properties of the modified powder before and after contrast under different conditions. The results show that modified powder works best in the speed ratio of 3:1, twice extrusion and temperature is 60℃. Tensile strength and elongation at break of the vulcanized rubber samples have significantly improved. Meanwhile, total organic volatiles content is lower during the discharge.