Enhanced modified polypropylene reclaimed material and preparation method thereof

A technology for polypropylene and recycled materials, which is applied in the field of reinforced modified polypropylene recycled materials and its preparation, which can solve problems such as performance attenuation, achieve the effects of improving compatibility, improving dispersion performance, and protecting the environment

Inactive Publication Date: 2017-05-24
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The properties of recycled polypropylene materials are significantly attenuated due to aging, degradation, etc., and the polypropylene chain segments will be destroyed and degraded again during the regranulation process of recycled materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 75 parts of recycled polypropylene, 10 parts of polypropylene, 5 parts of polypropylene grafted maleic anhydride, 0.2 parts of antioxidants (antioxidant 1010 and antioxidant 168) and 0.5 parts of bis-tert-butyl peroxy diiso Put propylene and benzene together in a high-speed mixer and mix for 3 minutes, then add the mixture into the extruder, add 10 parts of medium-alkali glass fiber from the glass fiber port, extrude and cut into pellets to obtain reinforced 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 polypropylene, 15 parts of polypropylene grafted maleic anhydride, 0.4 parts of antioxidants (antioxidant 1010, antioxidant 1076 and antioxidant 168) and 1.3 parts of bis-tert-butyl Put dicumyl peroxide in a high-speed mixer and mix for 4 minutes, then add the mixture into the extruder, add 25 parts of medium-alkali glass fiber from the glass fiber port, extrude and cut into pellets to obtain reinforced modified polypropylene recycling 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 polypropylene, 10 parts of polypropylene grafted maleic anhydride, 1 part of antioxidant (antioxidant 1010 and antioxidant 168) and 2 parts of bis-tert-butyl peroxy diiso Put propylene and benzene together in a high-speed mixer and mix for 5 minutes, then add the mixture into the extruder, add 18 parts of medium-alkali glass fiber from the glass fiber port, extrude and cut into pellets to obtain reinforced 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 reinforced modified polypropylene recycled materials prepared in the above-mentione...

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Abstract

The invention provides an enhanced modified polypropylene reclaimed material and a preparation method thereof. The enhanced modified polypropylene reclaimed material is prepared by mixing, extruding and granulating 30 to 75 parts of polypropylene reclaimed material, 10 to 30 parts of polypropylene, 5 to 15 parts of polypropylene grafted maleic anhydride, 10 to 25 parts of medium-alkali glass fibers, 0.2 to 1 part of antioxidant and 0.5 to 2 parts of bis(tert-butyl peroxy)diisopropyl benzene. By introducing the polypropylene grafted maleic anhydride into the polypropylene reclaimed material, a group with high polarity and reactiveness is introduced, so that the material is high in polarity and reactiveness, and the compatibility of the polypropylene and fibers is greatly improved; and meanwhile, the cross-linking degree of the material is increased by virtue of the bis(tert-butylperoxy)diisopropyl benzene, the dispersity and compatibility are excellent, the rigidness and flexibility balance is excellent, and the enhanced modified polypropylene reclaimed material can be used for producing a product with high requirement on the balance of the rigidness and flexibility.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification and processing, and in particular relates to a reinforced modified polypropylene recycled material and a preparation method thereof. Background technique [0002] Polypropylene is a thermoplastic with light specific gravity, high elasticity, high surface hardness, heat resistance, chemical stability, and good insulation. It is widely used in auto parts, household appliances, etc. 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. Millions of washing machines are scrapped every year in our country, and it is gro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/04C08K7/14C08K5/14C08K5/134C08K5/526C08J5/04B29C47/92B29C48/92
CPCC08L23/12B29C48/92B29C2948/92704C08J5/043C08K2201/003C08K2201/014C08L2205/025C08L2205/03C08L2205/08C08L2207/20C08L51/06C08K13/04C08K7/14C08K5/14C08K5/1345C08K5/526
Inventor 杨桂生方永炜
Owner HEFEI GENIUS NEW MATERIALS
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