Modified polypropylene composite material with high wear resistance and preparation method of modified polypropylene composite material
A composite material, polypropylene technology, applied in the polymer field, can solve the problems of fingernail scratches and poor finger scratch resistance, and achieve the effects of improving compatibility, improving overall performance and reducing surface defects
Inactive Publication Date: 2017-12-22
ORINKO NEW MATERIAL CO LTD
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Problems solved by technology
[0002] Modified polypropylene materials are increasingly used in various aspects of automobile parts due to their excellent physical properties, but as an apparent material, polypropylene has poor finger scratch resistance, similar to opening handles, handle covers, etc. The part that involves fingernails scratching the surface is prone to obvious fingernail scratches in long-term use when traditional modified polypropylene is used
Method used
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Experimental program
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Effect test
preparation Embodiment 1-3 and comparative example 1-2
[0035] Weigh polypropylene, modified mica after treatment with silane coupling agent, chopped low-alkali glass fiber, compatibilizer, anti-floating fiber additive, surface slip agent and other additives into the high-speed In the mixer, mix at 80-150r / min for 5-10min to obtain the mixed material; then add the mixed material from the feeding port to a vacuum port with two vacuum ports, the screw speed is 100-300 rpm, and the long diameter of the screw The high wear-resistant polypropylene composite material is produced by melting, extruding, cooling and pelletizing in a twin-screw extruder with a ratio of 30-45:1 and an extruder temperature of 190-230°C.
[0036] The composition of preparation raw material in table 1 embodiment 1-3 and comparative example 1
[0037]
[0038]
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Abstract
The invention discloses a modified polypropylene composite material with high wear resistance. The modified polypropylene composite material is prepared from raw materials in parts by weight as follows: 60-75 parts of polypropylene, 10-15 parts of modified mica, 5-10 parts of glass fibers, 2-4 parts of a compatilizer, 2 parts of a surface slipping agent, 0.2-0.4 parts of a surface floating fiber resisting auxiliary and 0.9 parts of other auxiliaries. With addition of modified mica, the glass fibers, the compatilizer and the other auxiliaries, the dispersion condition of the modified mica and the glass fibers in a matrix is better, and the matrix is combined with the material more stably, so that finger scratching resistance of the material is improved; the finger scratching resistance of the surface of the composite material is excellent, the surface has no obvious change after being scratched, notch impact strength is higher than 5 KJ / m<2>, bending modulus is higher than 2000 MPa, and the use range of the material is wide.
Description
technical field [0001] The invention relates to the technical field of polymers, in particular to a highly wear-resistant modified polypropylene composite material and a preparation method thereof. Background technique [0002] Modified polypropylene materials are increasingly used in various aspects of automobile parts due to their excellent physical properties, but as an apparent material, polypropylene has poor finger scratch resistance, similar to opening handles, handle covers, etc. The part involving fingernail scratches on the surface is prone to obvious fingernail scratches in long-term use when traditional modified polypropylene is used. [0003] Mica, as a high-rigid sheet-layer inorganic material, is characterized by insulation and high temperature resistance, and is widely used in coatings, paints, electrical insulation and other industries. Glass fiber is an inorganic non-metallic material with excellent performance. There are many kinds of it. Its advantages a...
Claims
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IPC IPC(8): C08L23/12C08L23/14C08L51/06C08K13/06C08K9/06C08K3/34C08K7/14C08K5/20C08K5/103B29B9/06
CPCB29B9/06C08K3/34C08K5/103C08K5/20C08K7/14C08K9/06C08K13/06C08K2201/003C08K2201/009C08K2201/014C08L23/12C08L23/14C08L51/06
Inventor 王世君康兴宾李停停王刚李荣群
Owner ORINKO NEW MATERIAL CO LTD
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