Modified composite material with recovered polypropylene as matrix and preparation method thereof
A technology of recycling polypropylene and matrix modification, which is applied in the field of polypropylene composite materials to achieve the effects of improving wear resistance and impact resistance, wide application range, and improving strength and rigidity
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[0036] Example 1
[0037] Used in building materials (plastic interlocking floor tiles for gardens and municipal engineering, green belt grid panels), and its appearance is shown in ZL201030203468.3 and ZL201030203469.8. This embodiment uses polypropylene crushed material PR01, the physical properties of which are shown in Table 1 below, and because the interlocking floor tile is a large product, a small amount of fly ash and calcium carbonate are added to improve or stabilize the fluidity of the material.
[0038] Table 1 Physical properties of polypropylene crushed material PR01
[0039]
[0040]
[0041] Raw materials:
[0042] POE, purchased from LG Chem, brand LC165;
[0043] Aluminate coupling agent, model DL-411, purchased from Nanjing Pinning Coupling Agent Co., Ltd.
[0044] Silane coupling agent, model KH-550, purchased from Jiangsu Chenguang Coupling Agent Co., Ltd.;
[0045] Glass fiber, commercially available; 508A chopped glass fiber
[0046] Use a single screw extruder to m...
Example Embodiment
[0047] Example 2
[0048] The polypropylene crushed material PR01 shown in Table 1 was modified. The preparation method was as shown in Example 1, and the formulation was as shown in Table 2: 100 parts PR01, 20-22 parts glass fiber, 2-3 parts calcium carbonate, 4 -6 parts fly ash, 6 parts LDPE, 10 parts POE, 5 parts PP-g-MAH, 0.3 parts polyethylene wax, 0.1 parts CaSt, 0.4 parts aluminate coupling agent, 0.3 parts antioxidant 1010, 0.1 168 parts of antioxidant, 0.1 part of antioxidant DLTP, 0.3 part of UV-531, 0.1 part of UV-327, appropriate amount of pigment. The pellets were tested, and the test results are shown in Table 3.
Example Embodiment
[0049] Example 3
[0050] The polypropylene crushed material PR01 shown in Table 1 was modified. The preparation method was as shown in Example 1, and the formulation was as shown in Table 2: 100 parts of PR01, 29-30 parts of glass fiber, 3-5 parts of calcium carbonate, 6 -8 parts fly ash, 10 parts LDPE, 12 parts POE, 6 parts PP-g-MAH, 0.4 parts polyethylene wax, 0.2 parts CaSt, 0.1 parts KH-550, 0.2 parts aluminate coupling agent, 0.2 parts Antioxidant 1010, 0.1 part of antioxidant 168, 0.1 part of antioxidant DLTP, 0.3 part of UV-531, 0.1 part of UV-327, appropriate amount of pigment. The pellets were tested, and the test results are shown in Table 3.
[0051] Table 2 Proportion of each embodiment
[0052] Example123 PR01100100100 LDPE6610 POE81012 Chopped glass fiber13-1520-2229-30 Calcium carbonate2-32-33-5 Fly ash4-64-66-8 talcum powder--- Wollastonite--- PP-g-MAH356 Polyethylene wax0.30.30.4 CaSt0.10.10.2 KH-5500.1-0.1 Aluminate coupling agent0.10.40.2 Antio...
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