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Recyclable nanocellulose reinforced polypropylene material and preparation method and application thereof

A polypropylene material and nano-cellulose technology, applied in the field of materials, can solve the problems of unrecyclable materials, insufficient rigidity, and high weight, and achieve the effects of recyclable, stable overall structure, and low processing temperature

Pending Publication Date: 2021-07-23
克林斯曼新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a nano-cellulose reinforced polypropylene material and its preparation method and application, which solves the technical problems that the materials in the prior art cannot be recycled, the rigidity is insufficient, and the weight is too high

Method used

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  • Recyclable nanocellulose reinforced polypropylene material and preparation method and application thereof

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preparation example Construction

[0029] Another aspect of the embodiments of the present invention provides a method for preparing a recyclable nanocellulose-reinforced polypropylene material, comprising the following steps:

[0030] 49.5-73.5 parts of copolymerized polypropylene, 15-35 parts of nano-plant cellulose, 10-15 parts of ethylene-octene copolymer elastomer, 1.5-3 parts of polypropylene maleic anhydride graft and 0.5-1.5 parts of processing aid After the parts are mixed, melt extrusion and pelletization are carried out to obtain a recyclable nanocellulose reinforced polypropylene material.

[0031] The preparation method provided by the invention has simple process and is suitable for industrial application.

[0032] In the present invention, the mixing is preferably dry mixing, the mixing speed of the dry mixing is preferably 400-600 rpm, and the dry mixing time is preferably 5-10 minutes. In the embodiment of the present invention, the mixing is preferably performed in a high-speed mixer, and the...

Embodiment 1

[0044] Example 1, the nano-cellulose reinforced polypropylene material includes the following raw materials: 49.5 kg of polypropylene copolymer, 15 kg of nano-plant cellulose, 10 kg of ethylene-octene copolymer elastomer, polypropylene maleic anhydride graft 1.5kg, antioxidant 1010 0.2kg, antioxidant 168 0.1kg and nucleating agent 0.2kg.

[0045] Stir the weighed raw materials in a vertical stirring high-speed mixer at a speed of 600rpm for 10 minutes, and then transport them to a twin-screw extruder for melt extrusion, granulation and drying to obtain green low-carbon recyclable injection molding Grade nano plant cellulose reinforced polypropylene; the temperature of each temperature zone of the extruder is: 100°C in the first zone, 110°C in the second zone, 130°C in the third zone, 140°C in the fourth zone, 160°C in the fifth zone, 165°C in the sixth zone, 170°C in the seventh zone, 170°C in the eighth zone, 175°C in the ninth zone, 170°C in the tenth zone, and 180°C in the ...

Embodiment 2

[0046] Embodiment 2 is the best embodiment of the present invention, the nanocellulose reinforced polypropylene material includes the following raw materials: 51.5kg of polypropylene copolymer, 30kg of nano plant cellulose, 15kg of ethylene-propylene copolymer elastomer, 3kg of polypropylene maleic anhydride graft, 0.2kg of antioxidant 1010, 0.1kg of antioxidant 168, and 0.2kg of nucleating agent.

[0047] According to the method of Example 1, a green low-carbon recyclable injection molding grade nano-plant cellulose reinforced polypropylene automotive interior material was prepared.

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Abstract

The invention provides a recyclable nanocellulose reinforced polypropylene material and a preparation method and application thereof, and belongs to the technical field of materials. The green low-carbon recyclable injection molding grade nano plant cellulose polypropylene automotive interior material is prepared from the following raw materials in percentage by mass: 49.5 to 73.5 parts of co-polypropylene, 15 to 35 parts of nano plant cellulose, 10 to 15 parts of ethylene-octylene copolymer elastomer, 0.5 to 1.5 parts of processing aid and 1.5 to 3 parts of polypropylene maleic anhydride graft. Through cooperation of the components, the obtained material has high rigidity and low-density performance, can replace a traditional PP + EPDM-TD20 material to be used as an automotive interior material, and has more excellent performance and a low carbon emission value compared with an existing material.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a nano-cellulose reinforced polypropylene material and a preparation method and application thereof. Background technique [0002] PP+EPDM-TD20 material is a thermoplastic polymer structure material with high strength, good toughness and easy processing and molding. It is widely used in the fields of automobiles, electronic appliances and DIY production. However, the PP+EPDM-TD20 material has a high specific gravity and a high linear expansion coefficient, especially when it is recycled, because the molecular chain is broken during recycling, which leads to the overall loss of the material after recycling. Impact resistance, rigidity and other aspects of performance are significantly reduced, which makes the material unable to be recycled. [0003] As a common polymer material, polypropylene is a semi-crystalline thermoplastic with high impact resistance, excellent mechanical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L1/02C08L23/08C08L51/06
CPCC08L23/14C08L2201/08C08L2205/035C08L1/02C08L23/0815C08L51/06
Inventor 祁乔宇任晓林张新孙政张保刚
Owner 克林斯曼新材料有限公司
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