Alkali-free glass fiber modified polypropylene recycling material and preparation method of alkali-free glass fiber modified polypropylene recycling material

A technology of non-alkali glass fiber and polypropylene, which is applied in the field of non-alkali glass fiber modified polypropylene recycled materials and its preparation, can solve the problems that the modified polypropylene recycled materials cannot meet the requirements, etc., and achieve improved dispersion performance and energy saving resources, good distribution 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 maleic anhydride, 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 together in a high-speed mixer and mixed for 3 minutes, then the mixture was added to the extruder, 10 parts of alkali-free glass fibers were added from the glass fiber port, extruded and pelletized to obtain Alkali glass fiber 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, 0.1 part of antioxidant 1010, 0.1 part of antioxidant 1076, 0.2 part of antioxidant 168 and 1.3 parts of 2,5- Put dimethyl-2,5-bis(tert-butylperoxy)hexane together in a high-speed mixer and mix for 4 minutes, then add the mixture into the extruder, and add 25 parts of alkali-free glass fiber from the glass fiber port , extruded and pelletized to obtain alkali-free glass fiber 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 maleic anhydride, 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 together in 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 Alkali glass fiber 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-...

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Abstract

The invention provides an alkali-free glass fiber modified polypropylene recycling material and a preparation method of the alkali-free glass fiber modified polypropylene recycling material. The alkali-free glass fiber modified polypropylene recycling material is prepared from the following components by mixing, extruding and granulating: 30 to 75 parts of a polypropylene recycling material, 10 to 30 parts of polypropylene, 5 to 15 parts of polypropylene grafted maleic anhydride, 10 to 25 parts of alkali-free glass fiber, 0.2 to 1 part of an antioxygen and 0.5 to 2 parts of 2,5-dimethyl-2,5-bi(tert-butylperoxy)hexane. According to the alkali-free glass fiber modified polypropylene recycling material, the polypropylene grafted maleic anhydride is added into the polypropylene recycling material to introduce a strong-polarity reactive group, so that the material has high polarity and reactivity, and the compatibility of the polypropylene and the fibers is extremely improved; meanwhile, the 2,5-dimethyl-2,5-bi(tert-butylperoxy)hexane is combined so that the strength, adhesive force and dispersion performance of the material are improved; good dispersity, compatibility and excellent rigid-tough balance are obtained.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification and processing, and in particular relates to an alkali-free glass fiber 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,...

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
CPCB29C48/92B29C2948/92704C08J5/043C08K2201/003C08K2201/014C08L23/12C08L2205/03C08L2205/035C08L2205/08C08L2207/20C08L51/06C08K13/04C08K7/14C08K5/14C08K5/1345C08K5/526Y02P70/10
Inventor 杨桂生方永炜
Owner HEFEI GENIUS NEW MATERIALS
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