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Modified polypropylene recovery material and preparation method thereof

A technology for recycled material and polypropylene, which is applied in the field of modified polypropylene recycled material and its preparation, can solve the problems that the modification cannot meet the standard of new polypropylene material, etc., and achieves improved dispersion performance, excellent rigidity and toughness balance, and good dispersion. sexual effect

Inactive Publication Date: 2018-05-25
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, glass fibers are mainly used to modify general plastics to enhance their mechanical properties, but the modification of polypropylene recycled materials by glass fibers still does not meet the standards of new polypropylene materials.

Method used

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  • Modified polypropylene recovery material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 75 parts of recycled polypropylene, 10 parts of high-density polyethylene, 5 parts of polyethylene grafted acrylic acid, 0.01 part of antioxidant and 2 parts of 2,5-dimethyl-2,5-bis(tert-butyl peroxy ) hexane together in a high-speed mixer and mixed for 3 minutes, then put the mixture into the extruder, add 10 parts of alkali-free glass fiber from the glass fiber port, extrude and cut into pellets to obtain modified polypropylene recycled material.

[0031] The temperature of each section of the barrel of the twin-screw extruder is set as follows: 180°C for zone 1, 185°C for zone 2, 195°C for zone 3, 195°C for zone 4, 200°C for zone 5, 200°C for zone 6, and 205°C for the die. The extruded strips are cooled to room temperature through a circulating water tank, dried by a blower, and then entered into a pelletizer for granulation.

Embodiment 2

[0033] 30 parts of recycled polypropylene, 30 parts of high-density polyethylene, 15 parts of polyethylene grafted acrylic acid, 0.02 parts of antioxidant and 0.5 parts of 2,5-dimethyl-2,5-bis(tert-butyl peroxy ) hexane together in a high-speed mixer and mixed for 4 minutes, then the mixture was added to the extruder, 25 parts of alkali-free glass fiber was added from the glass fiber port, extruded and pelletized to obtain modified polypropylene recycled material.

[0034] The temperature of each section of the barrel of the twin-screw extruder is set as follows: 180°C for zone 1, 185°C for zone 2, 195°C for zone 3, 195°C for zone 4, 210°C for zone 5, 220°C for zone 6, and 205°C for the die. The extruded strips are cooled to room temperature through a circulating water tank, dried by a blower, and then entered into a pelletizer for granulation.

Embodiment 3

[0036] 52 parts of recycled polypropylene, 20 parts of high-density polyethylene, 10 parts of polyethylene grafted acrylic acid, 0.02 parts of antioxidant and 1 part of 2,5-dimethyl-2,5-bis(tert-butyl peroxy ) hexane together in a high-speed mixer and mixed for 5 minutes, then put the mixture into the extruder, add 18 parts of alkali-free glass fiber from the glass fiber port, extrude and cut into pellets to obtain modified polypropylene recycled material.

[0037] The temperature of each section of the barrel of the twin-screw extruder is set as follows: 180°C for zone 1, 185°C for zone 2, 195°C for zone 3, 195°C for zone 4, 200°C for zone 5, 200°C for zone 6, and 205°C for the die. The extruded strips are cooled to room temperature through a circulating water tank, dried by a blower, and then entered into a pelletizer for granulation.

[0038] The modified polypropylene recycled materials prepared in the above-mentioned Examples 1-3 were molded into splines through standard ...

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Abstract

The invention discloses a modified polypropylene recovery material and a preparation method thereof. The modified polypropylene recovery material is prepared from the following components in parts byweight: 30-75 parts of polypropylene recovery material, 10-30 parts of high-density polyethylene, 5-15 parts of polyethylene grafted acrylic acid, 10-25 parts of alkali-free glass fiber, 0.01-0.02 part of antioxidant and 0.5-2 parts of 2,5-dimethyl-2,5-di(tert-butylperoxyl)hexane. The modified polypropylene recovery material and the preparation method disclosed by the invention have the beneficialeffects that the polyethylene grafted acrylic acid is added into the polypropylene recovery material to introduce strongly-polar reactive groups and commonly acts with the 2,5-dimethyl-2,5-di(tert-butylperoxyl)hexane, so that the strength, the adhesiveness and the dispersing property and the like of the material are improved. The modified polypropylene recovery material can be used for manufacturing products such as a step body of an automobile door with higher requirement for the rigid and tough balance; wastes of a washing machine tub are reasonably reused, so that the resource is saved andthe environment is protected.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification and processing, and in particular relates to a modified polypropylene recycled material and a preparation method thereof. Background technique [0002] Polypropylene is a thermoplastic with light specific gravity, high elasticity, and high surface hardness of the finished product; in addition, it also has the characteristics of heat resistance, chemical stability, and good insulation. It is widely used in the fields of auto parts and household appliances. application. However, with the development of industry, the waste of polypropylene has increased year by year. In recent years, the recycling of waste plastics has attracted more and more attention. Many companies have begun to re-modify recycled materials. [0003] The washing machine barrel is generally made of copolymerized polypropylene material, which has less filling, high melt index and high impact resistance. Milli...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L23/06C08L51/06C08K13/04C08K7/14C08K5/14C08K5/526C08K5/13B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08K2201/003C08L23/06C08L23/12C08L2201/08C08L2205/03C08L2207/062C08L2207/20C08L51/06C08K13/04C08K7/14C08K5/14C08K5/526C08K5/13Y02P70/10
Inventor 杨桂生方永炜梁娜宋伟华邵灵芝王华朱敏姚晨光
Owner HEFEI GENIUS NEW MATERIALS
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