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Preparation method of scratch-resistant agent for polypropylene

A technology of scratch-resistant agent and polypropylene, which is applied in the field of polymers, can solve the problems of low toughness, large molding shrinkage, and poor creep resistance of polypropylene, and achieve low material loss rate, fewer process steps, and strong controllability Effect

Inactive Publication Date: 2017-06-30
江门宇度科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because polypropylene (PP) has low toughness, poor creep resistance, large molding shrinkage, and poor dimensional stability; polypropylene is generally not scratch-resistant, and its surface is easy to collide and rub and be scratched to affect its appearance, which greatly limits The scope of use of polypropylene,

Method used

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  • Preparation method of scratch-resistant agent for polypropylene
  • Preparation method of scratch-resistant agent for polypropylene
  • Preparation method of scratch-resistant agent for polypropylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Weigh 60 parts of ethylene-ethyl acrylate copolymer, 20 parts of oleic acid amide, 10 parts of resorcinol type epoxy resin, 2 parts of light stabilizer (UV-770), 2,6-di-tert-butyl-4 - 2 parts of methyl phenol, mixed at high speed for 15 minutes with a high mixer, put the resulting material into the twin-screw extruder, and set 10 temperatures in the three areas of heating, constant temperature and heat preservation of the twin-screw extruder The temperature of the reference point is 60, 70, 90, 110, 130, 130, 130, 130, 130, and 130 degrees Celsius in turn, and the host speed of the twin-screw extruder is set to 450 rpm, the melt pressure is 1.9Mpa, and the outlet pressure 4MPa, extrusion granulation, cooling, pelletizing, to obtain pellets, collect the pellets and place them in an oven, set the drying temperature to 85 degrees Celsius, and last for 2 hours to obtain a polypropylene scratch-resistant Scratch agent, utilize ethylene-ethyl acrylate copolymer to have very g...

Embodiment 2

[0024] Weigh 62 parts of ethylene-ethyl acrylate copolymer, 22 parts of oleic acid amide, 12 parts of tetraphenol ethane type epoxy resin, 3 parts of light stabilizer (UV-770), 2,6-di-tert-butyl- 3 parts of 4-methylphenol, mixed at high speed for 20 minutes with a high mixer, put the resulting material into the twin-screw extruder, and set 10 heating, constant temperature, and heat preservation areas of the twin-screw extruder The temperature of the temperature reference point is 60, 70, 90, 110, 130, 130, 130, 130, 130, and 130 degrees Celsius in turn. Set the host speed of the twin-screw extruder to 500 rpm, the melt pressure to 2Mpa, and the outlet pressure 7MPa, extrusion granulation, cooling, pelletizing, to obtain pellets, collect the pellets and place them in an oven, set the drying temperature to 90 degrees Celsius, and last for 2 hours to obtain a polypropylene scratch-resistant Scratch agent, utilize ethylene-ethyl acrylate copolymer to have very good flexibility, he...

Embodiment 3

[0026] Weigh 65 parts of ethylene-ethyl acrylate copolymer, 25 parts of oleic acid amide, 13 parts of trishydroxyphenylmethane type epoxy resin, 5 parts of light stabilizer (UV-770), 2,6-di-tert-butyl- 5 parts of 4-methylphenol, mixed at high speed for 20 minutes with a high-mixer, put the obtained material into the twin-screw extruder, and set 10 heating, constant temperature, and heat preservation zones of the twin-screw extruder The temperature of the temperature reference point is 60, 70, 90, 110, 130, 130, 130, 130, 130, and 130 degrees Celsius in sequence. The pressure is 10 MPa, extrusion granulation, cooling, pelletizing, to obtain pellets, collect the pellets and place them in an oven, set the drying temperature to 95 degrees Celsius, and the duration is 2 hours to obtain a polypropylene resistant Scratch agent, utilize ethylene-ethyl acrylate copolymer to have good flexibility, thermal stability and processability characteristic, make the scratch resistance agent of ...

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Abstract

The present invention relates to the technical field of polymers, particularly to a preparation method of a scratch-resistant agent for polypropylene. According to the preparation method, an ethylene-ethyl acrylate copolymer, oleic acid amide, a hydroxyphenol-based glycidyl ether type epoxy resin, a light stabilizer (UV-770) and a hindered phenol antioxidant are mixed according to a certain weight part ratio, granulation is performed with a two screw extruder under conditions of heating and pressurization by using the characteristics of various components, and a certain post-treatment is performed to obtain the excellent performance scratch-resistant agent. According to the present invention, with the scratch-resistant agent, the good molding effect, the good toughness and the good strength of the polypropylene produced by the using the scratch-resistant agent of the present invention can be provided; by adding the light stabilizer, the service life of the polypropylene product can be prolonged; and the method has advantages of simple process, low cost, low material loss rate, less process step, and strong controllability.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a preparation method of a scratch-resistant agent applied to polypropylene. Background technique [0002] Polypropylene (PP material) has a simple synthesis method and a small relative density of only 0.89-0.91. It is cheap, has good physical and mechanical properties and processing properties, and has high heat resistance. The continuous use temperature can reach 110-120 ℃, good chemical properties, almost no water absorption, no reaction with most chemicals, pure texture, non-toxic, good electrical insulation, widely used in automobiles, household appliances, plastic pipes, high permeability materials, baby carriages, children It is one of the world's top five general-purpose plastic materials for supplies and toys. [0003] Because polypropylene (PP) has low toughness, poor creep resistance, large molding shrinkage, and poor dimensional stability; polypropylene is generally ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/08C08L63/00C08K5/20C08K5/3435C08K5/13
CPCC08L23/12C08L23/0869C08L63/00C08K5/20C08K5/3435C08K5/13
Inventor 郑弋俊
Owner 江门宇度科技有限责任公司
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