Anti-precipitation plant fiber modified polypropylene composite material and preparation method thereof

A plant fiber and composite material technology, which is applied in the field of anti-precipitation plant fiber modified polypropylene composite material and its preparation, can solve the problems of poor compatibility and inability to strengthen polypropylene, so as to maintain the fiber structure and reduce material costs , Improve the effect of mechanical properties

Inactive Publication Date: 2019-01-22
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor compatibility between plant fibers and polypropylene materials, it is easy to separate out from polypropylene and cannot play the role of reinforcing polypropylene.

Method used

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  • Anti-precipitation plant fiber modified polypropylene composite material and preparation method thereof
  • Anti-precipitation plant fiber modified polypropylene composite material and preparation method thereof
  • Anti-precipitation plant fiber modified polypropylene composite material and preparation method thereof

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preparation example Construction

[0028] The present invention also provides a preparation method of anti-separation plant fiber modified polypropylene composite material, comprising the following steps:

[0029] Add polypropylene resin, toughener, coupling agent, antioxidant, light stabilizer and lubricant into the twin-screw extruder through the main feeding hopper, and plant fiber and filler into the twin-screw extruder through the side feeding hopper In the process, pellets are obtained by melting, extrusion, pelletizing and drying.

[0030] Under optimal conditions, the melt extrusion process is as follows: twin-screw extruder barrel temperature is 190-210°C, screw speed is 400-450r / min, host speed is 18-20Hz, vacuum degree -0.06-0.08MPa .

[0031] In the invention, the plant fiber and the filler are fed into the screw extruder in a side-feeding manner, which can well maintain the fiber structure of the plant fiber, thereby improving the mechanical properties of the polypropylene composite material.

Embodiment 1

[0034] A segregation-resistant vegetable fiber modified polypropylene composite material made of:

[0035]

[0036] The preparation method of the anti-separation plant fiber modified polypropylene composite material, the steps are as follows:

[0037] (1) 37 parts by weight of wheat straw fiber, 5 parts by weight of talcum powder HTPultra5L, and 3 parts by weight of zirconium aluminate coupling agent were mixed in a high-speed mixer for 3 minutes to obtain a mixture A;

[0038] (2) 50 parts by weight of copolymerized polypropylene resin, 8 parts by weight of toughening agent POE8842, 0.3 parts by weight of antioxidant 1076, 0.2 parts by weight of antioxidant 168, 0.2 parts by weight of light stabilizer 3808PP5, and 0.5 parts by weight of lubricant TR451 Mix in a high-speed mixer for 5 minutes to obtain mixture B;

[0039] (3) Add compound A into the twin-screw extruder from the side feeding hopper, and add compound B into the twin-screw extruder from the main feeding hoppe...

Embodiment 2

[0041] A segregation-resistant vegetable fiber modified polypropylene composite material made of:

[0042]

[0043] The preparation method of the anti-separation plant fiber modified polypropylene composite material, the steps are as follows:

[0044] (1) 25 parts by weight of hemp fiber, 20 parts by weight of talcum powder HTPultra5L, and 1 part by weight of zirconium aluminate coupling agent were mixed in a high-speed mixer for 3 minutes to obtain compound A;

[0045] (2) 70 parts by weight of homopolypropylene resin, 5 parts by weight of toughening agent POE875L, 0.3 parts by weight of antioxidant 1076, 0.2 parts by weight of antioxidant 168, 0.4 parts by weight of light stabilizer 5585, and 0.6 parts by weight of lubricant Mix TM-2153 in a high-speed mixer for 5 minutes to obtain mixture B;

[0046] (3) Add compound A into the twin-screw extruder from the side feeding hopper, and add compound B into the twin-screw extruder from the main feeding hopper, and then melt, e...

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Abstract

The invention relates to the technical field of polymer materials, in particular to an anti-precipitation plant fiber modified polypropylene composite material and a preparation method thereof. The anti-precipitation plant fiber modified polypropylene composite material is prepared from a raw material composition. The raw material composition comprises (by weight): 40-90 parts of polypropylene resin, 5-8 parts of a toughening agent, 0-30 parts of a filler, 10-50 parts of vegetable fiber, 1-7 parts of a coupling agent, 0.2-0.5 part of an antioxidant, 0.1-0.4 part of a light stabilizer, and 0.3-0.6 part of a lubricant. According to the anti-precipitation plant fiber modified polypropylene composite material, the material cost can be greatly reduced under the premise of satisfying the material usability. Comprehensively utilization of the plant fiber will bring greater economic benefits to enterprises and can help greatly promote the efforts on environment protection of the society.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a precipitation-resistant plant fiber modified polypropylene composite material and a preparation method thereof. Background technique [0002] With the rise of international crude oil prices in recent years, the price of raw materials has risen, which has brought many adverse effects on people's daily life and the steady development of enterprises. As we all know, petroleum is a non-renewable resource, and the year-by-year decline of petroleum storage has hindered the sustainable development of society. How to use other renewable resources to partially replace petroleum as raw materials has become the focus of attention from all walks of life. Plant fibers such as hemp fiber, bamboo fiber and straw fiber are renewable green resources. Adding these plant fibers to polypropylene can not only reduce human dependence on petroleum resources, but also make rational use of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12C08L97/02C08L1/02C08L23/08C08K3/34C08K3/26
CPCC08L23/14C08K2003/265C08L23/12C08L2205/16C08L23/0815C08L97/02C08K3/34C08L1/02C08K3/26
Inventor 王少卿康兴宾周海李荣群
Owner ORINKO NEW MATERIAL CO LTD
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