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Modified polypropylene recycled material and preparation method thereof

A technology for polypropylene and recycled materials, which is applied in the field of modified polypropylene recycled materials and its preparation, which can solve the problems that the modification of polypropylene recycled materials cannot meet its requirements, and achieve improved dispersion performance, good dispersibility, and improved compatibility sexual effect

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

[0005] The reinforcing effect of glass fibers on plastics is very obvious, and is widely used in the reinforcement modification of plastics, but the modification of polypropylene recycled materials still cannot meet its requirements

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 acrylic acid, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 168 and 0.5 parts of 2,5-dimethyl-2,5-bis (tert-butyl peroxy) hexane was put into a high-speed mixer and mixed for 3 minutes, then the mixture was added into the extruder, 10 parts of alkali-free glass fibers were added from the glass fiber port, extruded and pelletized to obtain modified polystyrene Propylene recycling.

[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 acrylic acid, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 1076, 0.2 part of antioxidant 168 and 1.3 parts of 2,5-dimethyl Base-2,5-bis(tert-butylperoxy)hexane was put into a high-speed mixer and mixed for 4 minutes, then the mixture was added into the extruder, and 25 parts of alkali-free glass fibers were added from the glass fiber port, extruded Pelletize 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 polypropylene, 10 parts of polypropylene grafted acrylic acid, 5 parts of antioxidant 1076 and 5 parts of antioxidant 168 and 2 parts of 2,5-dimethyl-2,5-bis (tert-butyl peroxy) hexane was put into a high-speed mixer and mixed for 5 minutes, then the mixture was added into the extruder, 18 parts of alkali-free glass fibers were added from the glass fiber port, extruded and pelletized to obtain modified polymer Propylene recycling.

[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 ...

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Abstract

The invention provides a modified polypropylene recycled material and a preparation method of the modified polypropylene recycled material. 30 to 75 parts of polypropylene recycled materials, 10 to 30 parts of polypropylene, 5 to 15 parts of polypropylene grafted acrylic acid, 10 to 25 parts of alkali-free glass fibers, 0.2 to 1 part of an antioxidant, and 0.5 to 2 parts of 2,5-dimethyl-2,5-bis(tert butyl peroxy) hexane are mixed, and subjected to extrusion pelletization to manufacture the modified polypropylene recycled material. According to the invention, the polypropylene grafted acrylic acid is added in the polypropylene recycled materials to introduce strong polar reactive groups, so that the material has high polarity and reactivity, and the compatibility of the polypropylene and fibers are greatly improved; furthermore, 2,5-dimethyl-2,5-bis(tert butyl peroxy) hexane is combined to improve the strength, cohesion and dispersion properties of the material, therefore, the modified polypropylene recycled material has good dispersion and compatibility and excellent rigid-tough balance.

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, 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 growing at an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08K13/04C08K7/14C08K5/134C08K5/526C08K5/14
CPCC08L23/12C08L2205/025C08L2205/03C08L2207/20C08L51/06C08K13/04C08K7/14C08K5/1345C08K5/526C08K5/14
Inventor 杨桂生方永炜
Owner HEFEI GENIUS NEW MATERIALS
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