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Polypropylene compound as well as application and preparation method thereof

A technology of polypropylene and composites, applied in the field of polypropylene composites and its application and preparation, can solve the problems of no improvement in surface hardness, low surface hardness, surface scratches, etc., and achieve scratch resistance and good mechanical synthesis Performance, the effect of improving scratch resistance

Active Publication Date: 2021-04-30
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are still deficiencies in polypropylene materials: the surface hardness of polypropylene materials is very low, and slight scratches will cause serious surface scratches on polypropylene materials, which will seriously affect the appearance of products, thus limiting the use of polypropylene materials. Applications of Propylene in Household Appliances, Electronic Devices and Automobile Industry
In order to solve the scratch resistance of polypropylene materials, the traditional method is to add silicone and amide scratch resistance agents to polypropylene materials, but this method only improves the smoothness of the surface of the material, and the surface hardness of the material is not as good as Any improvement, so it has limited effect on improving scratch resistance and cannot meet the needs of higher levels of scratch resistance

Method used

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  • Polypropylene compound as well as application and preparation method thereof
  • Polypropylene compound as well as application and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The extruder used in the preparation is a two-stage twin-screw extruder, and the reaction extrusion is carried out in the first-order space of the twin-screw extruder. The length-to-diameter ratio is 48:1, and the second-order space of the twin-screw extruder is For physical blending, the length-to-diameter ratio is 30:1. Of course, it can also be the length-to-diameter ratio of other parameter values.

[0038] 1) Reactive extrusion: 46.7 parts by weight of polypropylene resin PPM60RH is added from the main feed, 0.1 part by weight of azobisisobutyronitrile AIBN free radical initiator is dissolved in 1 part by weight of methyl methacrylate and added through a liquid metering pump , Carry out grafting reaction in the first stage space of the twin-screw extruder to generate polypropylene grafted methyl methacrylate copolymer, and then extrude and granulate.

[0039]2) Blending: 5 parts by weight of PMMACM-205, 10 parts by weight of talc TYT-899, 5 parts by weight of elast...

Embodiment 2

[0041] The extruder used in the preparation is a double-stage twin-screw extruder, and reactive extrusion is performed in the first-order space of the twin-screw extruder, with an aspect ratio of 48:1, and the second-order space of the twin-screw extruder is Physically blended with an aspect ratio of 30:1.

[0042] 1) Reactive extrusion: 78.1 parts by weight of polypropylene resin PPM60RH is added from the main feed, and 0.3 parts by weight of benzoyl peroxide BPO radical initiator is dissolved in 5 parts by weight of methyl methacrylate and added through a liquid metering pump, The grafting reaction was carried out in the first stage space of the twin-screw extruder to produce polypropylene grafted methyl methacrylate copolymer, which was then extruded and pelletized.

[0043] 2) Blending: mix 10 parts by weight of PMACM-205, 20 parts by weight of talc TYT-899, 15 parts by weight of elastomer POE7467, 2 parts by weight of silicone scratch agent MB50-002, and 0.25 parts by wei...

Embodiment 3

[0045] The extruder used in the preparation is a double-stage twin-screw extruder, and reactive extrusion is performed in the first-order space of the twin-screw extruder, with an aspect ratio of 48:1, and the second-order space of the twin-screw extruder is Physically blended with an aspect ratio of 30:1.

[0046] 1) Reactive extrusion: 63 parts by weight of polypropylene resin PPM60RH was added from the main feed, and 0.2 parts by weight of dicumyl peroxide DCP radical initiator was dissolved in 4 parts by weight of methyl methacrylate and added through a liquid metering pump , carry out the grafting reaction in the first-order space of the twin-screw extruder to generate polypropylene grafted methyl methacrylate copolymer, and then extrude and granulate.

[0047] 2) Blending: 6 parts by weight of PMMACM-205, 15 parts by weight of talc TYT-899, 10 parts by weight of elastomer POE7467, 1 part by weight of silicone scratch agent MB50-002, 0.2 part by weight of hindered phenoli...

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Abstract

The invention relates to the technical field of high-molecular polymers, in particular to a polypropylene compound as well as application and a preparation method thereof. The polypropylene compound comprises the following raw materials in parts by weight: 46.7-78.1 parts of polypropylene, 1-5 parts of methyl methacrylate, 0.1-0.3 part of a free radical initiator, 5-10 parts of polymethyl methacrylate, 5-15 parts of an elastomer, 10-20 parts of talcum powder, 0.5-2.0 parts of a silicone scratching agent, 0.2-0.5 part of a stabilizer and 0.1-0.5 part of a processing aid. The polypropylene compound has the advantages of excellent scratch resistance and comprehensive mechanical properties; and the polypropylene compound with excellent scratch resistance and comprehensive mechanical properties can be prepared from the polypropylene compound through a first-stage space reaction of a double-screw extruder and a second-stage space blending reaction of the double-screw extruder.

Description

technical field [0001] The invention relates to the technical field of high molecular polymers, in particular to a polypropylene compound and its application and preparation method. Background technique [0002] Polypropylene is non-toxic, environmentally friendly, recyclable, and has chemical resistance, heat resistance, electrical insulation, high-strength mechanical properties and good high-wear processing properties. Therefore, since the advent of polypropylene, it has been rapidly and widely used in Automobiles, electronic appliances, construction, textiles, packaging, agriculture, forestry, fishery and food industry and many other fields of the national economy can replace engineering plastics such as nylon, ABS and PBT. At present, there are still deficiencies in polypropylene materials: the surface hardness of polypropylene materials is very low, and slight scratches will cause serious surface scratches on polypropylene materials, which will seriously affect the appe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08L33/12C08L83/04C08L23/08C08K13/02C08K3/34C08F255/02C08F220/14
CPCC08L51/06C08F255/02C08L2205/035C08L33/12C08L83/04C08L23/0815C08K13/02C08K3/34C08F220/14
Inventor 袁强黄险波叶南飚谢正瑞
Owner KINGFA SCI & TECH CO LTD
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