Thermo-oxidative aging resistant glass fiber reinforced polypropylene material and preparation method thereof

A polypropylene material, anti-thermal oxygen technology, applied in the field of polymers, can solve problems such as degradation, and achieve the effect of preventing oxidation chain reaction, superior anti-thermal oxygen aging, and excellent mechanical properties

Inactive Publication Date: 2019-01-18
ORINKO NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the tertiary carbon atoms in the molecular chain of PP materials, it is very easy to be decomposed by external factors such as heat, oxygen, and light. During the long-term use of the parts, they may be attacked by thermal oxygen and gradually degrade.

Method used

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  • Thermo-oxidative aging resistant glass fiber reinforced polypropylene material and preparation method thereof
  • Thermo-oxidative aging resistant glass fiber reinforced polypropylene material and preparation method thereof
  • Thermo-oxidative aging resistant glass fiber reinforced polypropylene material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The preparation method of the anti-thermal and oxidative aging glass fiber reinforced polypropylene material in this embodiment comprises the following steps: take 64 parts of syndiotactic polypropylene according to the weight ratio, and the polypropylene grafted maleic anhydride 4 with a grafting rate of 1.5% 0.1 part of hindered amine light stabilizer, 0.4 part of DSTP, 0.15 part of α nucleating agent, 0.4 part of hindered phenol antioxidant, 0.3 part of polyethylene wax, 0.4 part of silicone masterbatch and 0.5 part of hydrazone compound, Add together in a mixer with nitrogen protection and mix at high speed for 2 minutes to obtain a mixed material; under nitrogen protection, put the mixed material into a twin-screw extruder to melt, and then add a diameter of 10 μm from the side feeding port of the extruder. 30 parts of glass fiber chopped strands with a length of 3.0 mm are extruded and granulated to obtain a thermal and oxidative aging-resistant glass fiber reinfor...

Embodiment 2

[0033] The preparation method of the anti-thermal and oxidative aging glass fiber reinforced polypropylene material in this embodiment comprises the following steps: take 40 parts of random polypropylene and 5 parts of polypropylene grafted maleic anhydride with a grafting rate of 1.7% by weight , 0.3 part of hindered amine light stabilizer, 0.6 part of DSTP, 0.2 part of α nucleating agent, 0.4 part of phosphite antioxidant, 0.2 part of ethylene bis stearamide, 0.6 part of silicone masterbatch and N, N 0.2 parts of '-disubstituted hydrazine compound, add together in a mixer with nitrogen protection and mix at high speed for 6 minutes to obtain a mixed material; under nitrogen protection, put the mixed material into a twin-screw extruder to melt, and then Add 40 parts of glass fiber chopped strands with a diameter of 12 μm and a length of 4.0 mm to the side feeding port of the side feed port, and extrude and granulate to obtain a thermal-oxidative aging-resistant glass fiber-rei...

Embodiment 3

[0035]The preparation method of the anti-thermal and oxidative aging glass fiber reinforced polypropylene material in this embodiment comprises the following steps: Weigh 70 parts of syndiotactic polypropylene and atactic polypropylene according to the weight ratio, and the polypropylene grafting ratio is 2.0%. 8 parts branched maleic anhydride, 0.5 parts hindered amine light stabilizer, 0.7 parts DSTP, 0.4 parts α nucleating agent, 0.9 parts phosphite antioxidant, 0.3 parts stearate, grafted ethylene dihard Add 0.2 part of fatty amide, 1 part of silicone masterbatch, 0.3 part of aromatic hydrazide compound and 0.5 part of hydrazone compound into a mixer with nitrogen protection and mix at high speed for 10 minutes to obtain a mixed material; under nitrogen protection, the mixture Put the material into a twin-screw extruder to melt, and then add 50 parts of glass fiber chopped strands with a diameter of 14 μm and a length of 4.5 mm from the side feeding port of the extruder, an...

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Abstract

The invention discloses a thermo-oxidative aging resistant glass fiber reinforced polypropylene material and a preparation method thereof. The material is composed of the following components: polypropylene, glass fibers, a metal deactivator, a silicone master batch, a compatilizer, an antioxidant, a light stabilizer, a nucleating agent and a lubricating agent. By utilizing the synergistic thermo-oxidative aging resistance between functional additives, aging catalysis of metal ions on the material matrix can be inhibited by matching with the metal deactivator, so that the thermo-oxidative aging resistance of the metallic insert material is obviously improved; the prepared reinforced polypropylene has long-term thermo-oxidative aging resistance, and the performance retention rate is more than 85% after thermo-oxidative aging of 150DEG C per 1500 hours; the catalytic aging influence of the metal ions on the polymer matrix can be eliminated aiming at injection materials with metal inserts, and the problems that the application environments of reinforced polypropylene products in the fields of automobiles, household appliances and electronic materials are limited and the long-term service performance is greatly reduced are solved.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a heat-oxidative aging-resistant glass fiber reinforced polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene PP has been widely used in automobiles, household appliances, electronic appliances and other industries. With the continuous development and growth of various industries, the application of PP composite materials has also been deepened and extended. Glass fiber reinforced PP materials have high strength and good dimensional stability. , is a high-strength material, that is, after adding glass fiber reinforcement, its mechanical properties, heat resistance and dimensional stability are greatly improved. In practical applications, plastic can replace steel and reinforced engineering plastics to meet the requirements of high-strength structural parts, automobiles, home appliances and other fields. However, since the molecular...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L83/04C08L23/06C08L51/06C08K13/04C08K7/14C08K5/20C08K5/098C08K5/372C08J5/04C08J3/22
CPCC08J5/043C08J3/226C08J2323/12C08J2423/06C08J2451/06C08J2483/04C08K2201/016
Inventor 吕志勇邢纪普任东方李荣群李春忠张玲王庚超
Owner ORINKO NEW MATERIAL CO LTD
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