Recycled polypropylene material and preparation method thereof

A technology for recycling polypropylene and recycled polypropylene, which is applied in the field of polypropylene materials and can solve the problems of incomplete compatibility of PP and no help in improving toughness

Inactive Publication Date: 2020-10-20
上海睿聚环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The addition of PE components leads to a decrease in the overall strength of recycled woven bag materials, but i

Method used

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  • Recycled polypropylene material and preparation method thereof

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[0063] The second aspect of the present invention provides the preparation method of the recycled polypropylene material, comprising the following steps: after stirring the recycled polypropylene and the recycled polyethylene at 80-150°C for 1-20min, adding a toughening agent, an antioxidant agent and lubricant, continue to stir until the mixture is uniform; then extrude and granulate, that is to say.

[0064] In a preferred embodiment, the preparation method of the recycled polypropylene material comprises the following steps:

[0065] (1) Heat up the high-speed mixer to 120°C, then add recycled polypropylene and recycled polyethylene, and stir for 3 minutes; then add toughening agent, antioxidant and lubricant, and continue stirring for 30 seconds to obtain a mixed material;

[0066] (2) Put the mixed material into the extruder. The temperature of the twin-screw extruder is: 160°C in the first zone, 180°C in the second zone, 210°C in the third zone, 210°C in the fourth zone,...

Embodiment 1

[0071] Embodiment 1 provides a recycled polypropylene material. The raw materials for the preparation of the recycled polypropylene material include the following components: 85 parts of recycled polypropylene, 10 parts of recycled polyethylene, 5 parts of toughening agent, and 0.2 parts of antioxidant , 0.3 parts of lubricant.

[0072] The recycled polypropylene is obtained from waste woven bags and jumbo bags through conventional recycling; the recycled polyethylene is obtained from waste plastic films through conventional recycling; the toughening agent is a propylene-based elastomer selected from ExxonMobil Chemical industry, VistamaxxTM series, model 6102; the antioxidant is a combination of antioxidant 1010 and antioxidant 168, the weight ratio is 1:2; the lubricant is stearic acid.

[0073] The preparation method of described reclaimed polypropylene material comprises the following steps:

[0074] (1) Heat up the high-speed mixer to 120°C, then add recycled polypropyle...

Embodiment 2

[0077] Embodiment 2 provides a recycled polypropylene material. The raw materials for preparing the recycled polypropylene material include the following components: 90 parts of recycled polypropylene, 10 parts of recycled polyethylene, 0.2 part of antioxidant, and 0.3 part of lubricant.

[0078] The recycled polypropylene is obtained from waste woven bags and jumbo bags through conventional recycling; the recycled polyethylene is obtained from waste plastic films through conventional recycling; the antioxidant is a combination of antioxidant 1010 and antioxidant 168 , the weight ratio is 1:2; the lubricant is stearic acid.

[0079] The preparation method of described reclaimed polypropylene material comprises the following steps:

[0080] (1) Heat up the high-speed mixer to 120°C, then add recycled polypropylene and recycled polyethylene, and stir for 3 minutes; then add antioxidant and lubricant, and continue stirring for 30 seconds to obtain a mixed material;

[0081](2) P...

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Abstract

The invention relates to the technical field of polypropylene materials, particularly to a recycled polypropylene material and a preparation method thereof. The recycled polypropylene material is prepared from the following components in parts by weight: 70 to 95 parts of regenerated polypropylene, 1 to 30 parts of regenerated polyethylene, 1 to 10 parts of a toughening agent, 0.1 to 1 part of anantioxidant and 0.1 to 2 parts of a lubricating agent. The invention provides a recycled polypropylene material, wherein regenerated polypropylene is used as base material, regenerated polyethylene isused as a toughening component, and a certain amount of a toughening agent, an antioxidant and a lubricant are compounded, so that environmental pollution caused by waste plastics is relieved, resource utilization is realized, petroleum resources are saved, the strength and toughness of the recycled polypropylene material are remarkably improved, and the toughening cost of the recycled polypropylene material is reduced.

Description

technical field [0001] The invention relates to the technical field of polypropylene materials, in particular to a recycled polypropylene material and a preparation method thereof. Background technique [0002] Polypropylene (PP) is widely used in automobiles, packaging, daily necessities, pipes and other fields due to its low density, good heat resistance, balanced mechanical strength, and low price. In 2019, the apparent consumption of polypropylene in China reached 27.1663 million tons, which is second only to polyethylene (PE). Among them, polypropylene wire drawing materials used in packaging bags such as ton bags, woven bags, and cement bags accounted for 35%. %, about 9.5 million tons. These waste polypropylene, like plastic bags and films that are difficult to degrade naturally, are called white pollution, which has become an increasingly serious social and environmental problem. Recycling can not only alleviate the environmental pollution caused by plastics to a ce...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L23/06C08L23/08C08K5/134C08K5/526C08K5/09
CPCC08K5/09C08K5/1345C08K5/526C08L23/12C08L2205/02C08L2205/03C08L23/06C08L23/0815
Inventor 张挺朱宽熊维
Owner 上海睿聚环保科技有限公司
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