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The multi-layer plastic composite panel is polymethyl methacrylate (PMMA) and acrylonitrile - butadiene - styrene copolymer (ABS) on unsaturated polyester and glass fiber is formed by advanced calendering equipment coextrusion spray composite materials. It has a high surface finish, high hardness, impact strength, aging resistance, flexural strength, etc.. However, not only due to the article containing a thermoplastic resin, but also contains a thermosetting resin has been cured, the insoluble and infusible, so the production process as well as solid waste arising after use difficult. Traditional burial and burning method does not comply with the requirements of sustainable development of the society, it is necessary to explore a new recycling method. In order to solve the the multilayer plastic composite board waste (WGFRP) recycling problems, the present study used a silane coupling agent, compatibilizer, modified montmorillonite on WGFRP, modified, added to a polypropylene (PP), by melt prepared by blending PP composites, composites process to identify the best ratio of components of the composite material of the composite microstructure and toughening and reinforcing mechanism to obtain good mechanical properties, thermal stability higher PP composite. The thesis research content and the main results are as follows: (1) the use of a silane coupling agent KH550, KH560, KH570. Processing WGFRP of compatibilizer PP-g-MAH and added to the PP matrix, prepared PP / WGFRP-/ PP-g-MAH composite materials. The the Head WGFRP number and amount of the kind of the silane coupling agent, the amount of compatibilizing agent factors PP composite tensile strength, impact strength, flexural strength and flexural modulus; using differential scanning calorimetry studied the crystallization of PP composites; (DSC) and thermogravimetric analysis (TGA) to study the thermal stability of PP composites; PP composites morphology was observed by a scanning electron microscope (SEM). The results showed that: When treated with 1% silane coupling agent KH570 WGFRP (100 mesh), 20 parts of the compatibilizing agent PP-g-MAH to 2 parts, the impact strength of the composite material 7.66 kJ/m2 (not The compatibilizing agent Composites increased by approximately 25%, compared with the blank PP increased by approximately 113%), tensile strength of 29.37 MPa (approximately 11% lower than the blank PP). SEM observation results showed that the composite material of PP the / WGFRP / PP-g-MAH is plastically deformed in the fracture process, its toughness. The DSC results showed that, WGFRP Add to reduce the degree of crystallinity of the polypropylene, but did not change the crystal morphology of the PP. TGA observation results showed that the, Add WGFRP improve the thermal stability of polypropylene, and increased with increasing amount thereof, the mesh and WGFRP the thermal stability influential the PP / WGFRP composites, with the mesh increases, improved thermal stability of the composite material. (2) cetyl trimethyl ammonium bromide (CTAB) and a silane coupling agent KH550 modified montmorillonite, preparation of the bis-modified montmorillonite (OMMT-3), of the OMMT-3 an amount of PP/WGFRP/PP-g-MAH/OMMT-3 composites tensile strength, impact strength, flexural strength, flexural modulus, impact; using X-ray diffraction analysis (XRD) of the modified montmorillonite and the composite material structure; the TGA study montmorillonite modified PP / WGFRP / PP-g-MAH / OMMT thermal stability of the composite material; using a scanning electron microscope (SEM) and transmission electron microscopy (TEM) observation with modified montmorillonite the PP / WGFRP / PP-g-mAh / OMMT composites form. The results show that, when of PP, WGFRP of PP-g-MAH and OMMT-proportion 100:20:2:5 hours, the tensile strength, flexural strength and flexural modulus reaches the maximum value, namely 34.22 MPa. , 46.88 MPa and 1650.22 MPa than samples without OMMT-3, respectively, increased 16.5%, 7.1% and 28.5%, the impact strength of 7.94 kJ / m 2, little change compared with the original soil, including dual-modified montmorillonite soil toughening PP / WGFRP / PP-g-MAH enhancement. XRD results show that the KH550 modified montmorillonite interlayer spacing of 1.55 nm, no major changes compared with the original soil; the CTAB modified OMMT-1 layer spacing of the original soil 1.54 nm to 2.41 nm, increased a 0.87 nm; CTAB KH550 double modified OMMT-3 at 2 theta = 3.68 to 4.52 ° is formed between the broad diffraction peak corresponding to the interlayer spacing of 1.96 to 2.40 nm. Containing bis-modified montmorillonite (OMMT-3) PP/WGFRP/PP-g-MAH/OMMT-3 diffraction peak of the composite material almost disappeared a wide weak diffraction peaks at 2 theta = 2.3 to 3.3 °. The disappearance of diffraction peaks typically associated with nano-layers of montmorillonite in the polymer matrix is ??completely peeled, the strip forming nano structure. Weak diffraction peak of a wide part of the intercalated structure is not stripped. TGA results show that of OMMT-added, so that the thermal stability of the composite material has greatly improved. SEM photographs reveal of OMMT-added of the composite cross-section becomes rough, a petal-like, there will be a reunion of OMMT amount of more than 5 copies phenomenon. TEM and XRD results show, PP/PP-g-MAH/OMMT-3 (100/20/2/5) composite nanocomposites are intercalated structure with peeling structure coexist.
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