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A kind of recycled and toughened modified composition of waste polypropylene and its preparation method

A technology of toughening and modifying waste polypropylene, which is applied in the field of polymer materials, can solve the problems of not being suitable for making high-grade products and poor mechanical properties of recycled polypropylene, and achieve the effects of improving rigidity, toughness, and impact toughness

Active Publication Date: 2017-03-15
FENGFAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that recycled polypropylene has poor mechanical properties and is not suitable for making high-grade products, the technical solution adopted by the present invention is:

Method used

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  • A kind of recycled and toughened modified composition of waste polypropylene and its preparation method
  • A kind of recycled and toughened modified composition of waste polypropylene and its preparation method
  • A kind of recycled and toughened modified composition of waste polypropylene and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0024] Step 1: Take each component by the following parts by weight:

[0025]

[0026] Put the above ingredients into a high-speed mixer and dry mix for 3 minutes. After mixing evenly, add them to a twin-screw extruder for extrusion. The temperature of the extruder is set at 210°C and the speed is 100r / min. After cooling in cold water, pelletize to obtain the mixture toughened masterbatch.

[0027] Step 2: Take each component by the following parts by weight:

[0028]

[0029] Put the prepared mixture into a high-speed mixer and dry mix for 3 minutes. After mixing evenly, add it to a twin-screw extruder for extrusion. The temperature of the extruder is set at 210°C and the speed is 100r / min. After the material is cooled by cold water, it is cut into pellets, and the preparation is completed. The mechanical properties parameters are shown in Table 1.

Embodiment example 2

[0031] Step 1: Take each component by the following parts by weight:

[0032]

[0033]

[0034] Put the above ingredients into a high-speed mixer and dry mix for 3 minutes. After mixing evenly, add them to a twin-screw extruder for extrusion. The temperature of the extruder is set at 210°C and the speed is 100r / min. After cooling in cold water, pelletize to obtain the mixture toughened masterbatch.

[0035] Step 2: Take each component by the following parts by weight:

[0036]

[0037] Put the prepared mixture into a high-speed mixer and dry mix for 3 minutes. After mixing evenly, add it to a twin-screw extruder for extrusion. The temperature of the extruder is set at 210°C and the speed is 100r / min. After the material is cooled by cold water, it is cut into pellets, and the preparation is completed. The mechanical properties parameters are shown in Table 1.

[0038] Table 1 Experimental results

[0039]

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Abstract

The invention discloses a waste polypropylene regenerated toughening-modified composition and a preparation method thereof, belonging to the technical field of high polymer materials. The waste polypropylene regenerated toughening-modified composition is prepared from the following components in parts by weight: 45-5 parts of toughening master batch, 50-90 parts of waste polypropylene, 2-6 parts of reinforcing assistant R, 1-5 parts of compatilizer, 0.1-0.5 part of lubricant, 0.2-0.6 part of antioxidant and 0-30 parts of polypropylene raw material. The method adopts a two-step process for blending and granulation and comprises the following steps: 1. uniformly mixing a metallocene polyethylene elastomer, an inorganic nano filler, a polypropylene raw material, a lubricant and an antioxidant, melting and granulating to obtain the toughening master batch; and 2. uniformly mixing the toughening master batch, waste polypropylene, reinforcing assistant R, compatilizer, polypropylene raw material, lubricant and antioxidant, melting and granulating. The formed part has the characteristics of high strength, favorable toughness, low production cost and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a recycled and toughened modified composition of waste polypropylene and a preparation method thereof. Background technique [0002] Polypropylene has the advantages of low density, good heat resistance, balanced mechanical properties, and low price. It has become the third largest general-purpose material in the world after polyethylene and polyvinyl chloride. It is widely used in electronics, machinery, daily necessities and other industries. Polypropylene is not only closely related to people's daily life, but also has become an indispensable important material in industrial and agricultural production. In 2011, the total global consumption of polypropylene was 42.3 million tons, with an average annual compound growth rate of 4.5%. By 2020, the total global consumption of polypropylene is predicted to reach 62.4 million tons. However, with the increasing production ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/08C08L23/26C08K9/04C08L51/06C08K5/098C08K13/06
CPCB29B9/06B29C48/92B29C2948/9259B29C2948/92704C08K2201/003C08K2201/011C08L23/12C08L2205/025C08L2205/035C08L2207/20C08L23/0815C08L51/06C08K13/06C08K9/04C08K2003/265C08K5/098
Inventor 杨红军刘明程张志军赵雪
Owner FENGFAN
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