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Automotive wear-resistant plant fiber reinforced polypropylene micro-foaming material and preparation method thereof

A plant fiber and polypropylene technology, applied in the field of materials, can solve the problems of being unable to be directly used in auto parts, poor surface wear resistance of micro-foaming products, and unable to meet the requirements of use, and meet the requirements of non-toxic and harmless substances, The effect of improving wrapping ability and improving interface compatibility

Inactive Publication Date: 2019-08-09
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in addition, due to the lower strength of the plant fiber itself compared to the inorganic fiber, and the poor dispersion in the non-polar polypropylene matrix, the surface wear resistance of the micro-foamed product is extremely poor, and the surface of the product is prone to pulverization, slag falling, and panning. White, serious color difference and other quality problems; in addition, because the plant fiber itself contains harmful substances such as formaldehyde during the processing process, other harmful substances will be emitted during the production process, and the smell is serious, and the micro-foamed wood-plastic composite material cannot be directly Used in auto parts, especially cockpit parts that have strict requirements on odor and VOC emission, and even directly cause hidden dangers to the health and safety of passengers, which cannot meet the requirements for use in cars

Method used

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  • Automotive wear-resistant plant fiber reinforced polypropylene micro-foaming material and preparation method thereof
  • Automotive wear-resistant plant fiber reinforced polypropylene micro-foaming material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1

[0032] (1) 40 parts of copolymerized polypropylene with a melt index of 25g / 10min, 8 parts of maleic anhydride grafted polypropylene with 0.2% monomer residual content, 10 parts of quartz sand, 3 parts of synthetic polyethylene wax, dehydroabietic acid 0.5 parts of potassium, 10 parts of POE, 2 parts of allicin, 3 parts of camphor powder, 4.5 parts of porous aluminum silicate, 0.2 parts of Cytec 3808, and 168 0.3 parts of antioxidant are added to the mixer in parts by weight and mixed for 1 min, Then add the mixture to the twin-screw extruder to obtain material A; meanwhile, 25 parts of bamboo fiber (0.5% moisture content) is fed into the extruder in parts by weight through the side feeding port, and undergoes plasticization, shearing and dispersion, Extrusion, drawing, air drying, and granulation to obtain material B. Among them, the temperature of the extruder is set at 180-270°C, and the screw speed is 800r / min.

[0033] (2) Put 106.5 parts of the polypropyle...

Embodiment 2

[0035] (1) 60 parts of homopolymerized polypropylene with a melt index of 20g / 10min, 20 parts of copolymerized polypropylene with a melt index of 30g / 10min, 1 part of maleic anhydride with 0.5% residual monomer content, and glass beads 1 part, 0.5 parts of silicone wax, 5 parts of sodium meta-benzoate, 1 part of EPDM, 1 part of camphor powder, 1.5 parts of porous calcium silicate, 0.3 parts of Cytec 3808, 0.2 parts of antioxidant 1010, and 0.2 parts by weight. Mix in the machine for 4 minutes, and then add the mixture to the twin-screw extruder to obtain material A; at the same time, 10 parts of wood flour (water content 1%) is fed into the extruder in parts by weight through the side feeding port, and is plasticized , Shearing and dispersing, extruding, stretching, air drying, and granulating to obtain material B, wherein the temperature of the extruder is set at 180-270℃, and the screw speed is 400r / min.

[0036] (2) Put 101.5 parts of polypropylene composite material particles...

Embodiment 3

[0038] (1) 60 parts of copolymerized polypropylene with a melt index of 30g / 10min, 5 parts of maleic anhydride grafted polyethylene with a monomer residual content of 0.2%, 7 parts of alumina ceramsite, 2 parts of silicone powder, dehydrogenated fir Add 1 part of sodium sulfate, 5 parts of polyethylene, 4 parts of zinc oxide, 3 parts of activated carbon, 0.3 parts of Cytec 3808, 0.5 parts of antioxidant 1010, and add them to the mixer for 3 minutes by weight, and then add the mixture to the double Material A is obtained from the screw extruder; at the same time, 20 parts of hemp fiber (water content 0.3%) is fed into the extruder in parts by weight through the side feeding port, and undergoes plasticization, shearing and dispersion, extrusion, drawing, and air drying. , Pelletizing to obtain material B, wherein the temperature of the extruder is set at 180-270℃, and the screw speed is 600r / min.

[0039] (2) Put 107.8 parts of polypropylene composite material particles obtained in...

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Abstract

The invention relates to an automotive wear-resistant plant fiber reinforced polypropylene micro-foaming material and a preparation method thereof. The material is prepared from, by weight, 40-80 parts of polypropylene, 10-25 parts of plant fibers, 1-8 parts of a compatibilizer, 1-10 parts of a wear-resistant auxiliary agent, 0.5-3 parts of a lubricant, 0.5-5 parts of a nucleating agent, 1-10 parts of a toughening agent, 1-5 parts of a foaming agent and 3-10 parts of other auxiliary agents. According to the automotive wear-resistant plant fiber reinforced polypropylene micro-foaming material and the preparation method thereof, through scientific formula design, the plant fiber reinforced polypropylene micro-foaming material with excellent anti-mildew performance and lightweight characteristics is obtained by means of a natural anti-mildew technology, and the product also has the advantages of low emission, rigidity and toughness balance and the like; meanwhile, the product has good apparent quality, meets the use requirements of automotive interior products, eliminates the hard plasticity of the finished products, improves the visual grade and handfeel comfort of the automotive plastic interiors, and is beneficial to creating the most comfortable automotive interior space.

Description

Technical field [0001] The invention relates to a wear-resistant plant fiber reinforced polypropylene micro-foam material for vehicles and a preparation method thereof, and belongs to the technical field of materials. Background technique [0002] Micro-foamed wood-plastic composite materials have multiple advantages such as excellent comprehensive performance, light weight and low cost, and are receiving more and more attention from automobile OEMs. However, in addition, due to the low strength of the plant fiber itself relative to the inorganic fiber, and the poor dispersibility in the non-polar polypropylene matrix, the surface of the micro-foamed product has very poor abrasion resistance, and it is prone to surface powdering, slagging, and panting. Quality problems such as whiteness and serious color difference; In addition, because the plant fiber itself contains harmful substances such as formaldehyde during the processing process, other harmful substances will be emitted d...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/12C08L51/06C08L97/02C08K13/04C08K3/36C08K7/28C08K3/22C08J9/08C08J9/14
CPCC08J9/0066C08J9/0085C08J9/0095C08J9/08C08J9/142C08J2203/02C08J2203/12C08J2323/12C08J2323/14C08J2423/14C08J2451/06C08J2497/02
Inventor 王滨刘曙阳蒋顶军
Owner NANJING JULONG SCI&TECH CO LTD
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