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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

Active Publication Date: 2013-08-21
CGN JUNER NEW MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above studies and reports did not involve the use of glass fibers and minerals to modify waste recycled polypropylene

Method used

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  • Modified composite material with recovered polypropylene as matrix and preparation method thereof
  • Modified composite material with recovered polypropylene as matrix and preparation method thereof
  • Modified composite material with recovered polypropylene as matrix and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Applied to building materials (plastic interlocking floor tiles for gardens and municipal engineering, green belt grid panels), its appearance is shown in ZL201030203468.3 and ZL201030203469.8. In this example, polypropylene broken material PRO1 is used, and its physical properties are shown in Table 1 below. Since the interlocking floor tile is a large-scale 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...

Embodiment 2

[0048] Modify the polypropylene broken material PRO1 shown in Table 1, the preparation method is as shown in Example 1, and the proportioning ratio is as shown in Table 2: 100 parts of PR01, 20-22 parts of glass fiber, 2-3 parts of calcium carbonate, 4 -6 parts of fly ash, 6 parts of LDPE, 10 parts of POE, 5 parts of PP-g-MAH, 0.3 parts of polyethylene wax, 0.1 parts of CaSt, 0.4 parts of aluminate coupling agent, 0.3 parts of 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.

Embodiment 3

[0050] Modify the polypropylene crushing material PRO1 shown in Table 1, the preparation method is as shown in Example 1, and the proportioning ratio is as shown in Table 2: 100 parts of PR01, 29-30 parts of glass fiber, 3-5 parts of calcium carbonate, 6 -8 parts of fly ash, 10 parts of LDPE, 12 parts of POE, 6 parts of PP-g-MAH, 0.4 parts of polyethylene wax, 0.2 parts of CaSt, 0.1 parts of KH-550, 0.2 parts of 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 granulated material was tested, and the test results are shown in Table 3.

[0051] The ratio of each embodiment of table 2

[0052] Example 1 2 3 PR01 100 100 100 LDPE 6 6 10 POE 8 10 12 chopped glass fiber 13-15 20-22 29-30 calcium carbonate 2-3 2-3 3-5 fly ash 4-6 4-6 6-8 talcum powder - - - wollastonite - ...

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Abstract

The invention discloses a modified composite material with recovered polypropylene as a matrix. The composite material contains 100 parts of recovered polypropylene; 6-12 parts of polyethylene; 6-15 parts of a mineral; 8-12 parts of a polyethylene-octene elastomer; 12-30 parts of a glass fiber; and 4-10 parts of aids. The invention also discloses a preparation method of the modified composite material with recovered polypropylene as the matrix. The method includes: utilizing a single screw extruder to conduct fusion granulation on the recovered polypropylene, then mixing the coarse granulated polypropylene, the mineral, the polyethylene and the like, and adding the mixture into a twin-screw extruder through a main feeding port, adding the glass fiber through a side feeding port, and finally carrying out bracing granulation. In the invention, the synergism of the glass fiber and the mineral is utilized to modify the recovered polypropylene, thus improving strength and rigidity of the material, and also enhancing the wear resistance and impact resistance of the material. Also, employment of the recovered polypropylene as the main raw material achieves utilizability of resources.

Description

technical field [0001] The invention relates to a polypropylene composite material, in particular to a recycled polypropylene composite material reinforced with glass fiber and minerals and a preparation method thereof. Background technique [0002] Polypropylene (PP) is inexpensive, lightweight, corrosion-resistant, and easy to mold and process. It is widely used in packaging, auto parts, and construction materials. It is one of the three general-purpose plastics. [0003] With the development of the plastics industry, more and more plastics are applied to every part of life. As time goes by, plastic products will inevitably suffer from aging, damage and disposal. Polypropylene is a common polymer material with good performance and a wide range of applications, and its waste is also increasing year by year. In recent years, due to rising living costs, production costs and operating costs, many companies have set their sights on recycling and remodifying waste plastics in o...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L23/08C08K13/04C08K7/14C08K3/34C08K3/26C08K7/20C08J5/04
Inventor 陈光剑黄志杰陈玉莹宋玉兴陈永波
Owner CGN JUNER NEW MATERIALS
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