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Waste PP Recycling Technology

Categories:Industry trends
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Time of issue:2023-01-03 15:54
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(Summary description)Alloying is the process of mixing waste PP with other polymer materials to prepare macroscopically uniform materials. By selecting different polymer materials for alloying, the processing performance, physical and mechanical properties of waste PP can be improved.

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Waste PP Recycling Technology

Categories:Industry trends
Author:
Origin:
Time of issue:2023-01-03 15:54
Views:

Information

Alloying is the process of mixing waste PP with other polymer materials to prepare macroscopically uniform materials. By selecting different polymer materials for alloying, the processing performance, physical and mechanical properties of waste PP can be improved. For example, the use of elastomers can significantly improve the impact toughness of waste PP.

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Some researches on the mechanical properties and thermal deformation behavior of waste PP/RU composite rubber blend materials have found that the RU composite rubber is masticated into fine rubber particles, so that they can be evenly dispersed in the waste PP continuous phase, which can significantly improve the impact of waste PP. Strength and elongation at break, but will result in reduced rigidity and thermal deformation resistance of PP.
Since most elastomers are incompatible with waste PP, the interface bonding is poor, and there is phase separation during processing and use, which affects its performance. In order to improve the interfacial compatibility of waste PP alloys and enhance the interfacial bonding, many scholars have carried out extensive research and found two kinds of materials that can enhance the interfacial bonding of blended materials and improve the storage modulus, loss modulus and system viscosity of blended materials. the compatibilizer.
The vulcanizing agent can improve the impact and tensile strength, melt viscosity, elongation at break and ductility of the blended material; the addition of the peroxide crosslinking agent can further improve the compatibility of the blended material and improve the blended material. impact and tensile strength, but resulted in a slight decrease in elongation at break.

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