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Chemical treating method for melt polycondensation high polymer old material regeneration

A technology of melt polycondensation and chemical treatment, which is applied in the field of chemical fiber and plastic processing, and can solve the problems of irreversible quality degradation, raw material quality uniformity that cannot reach the high quality and continuity of industrial equipment, and achieve the goal of reducing demand and oil resources Consumption, the realization of circular economy, and the effect of stable production

Inactive Publication Date: 2012-01-25
成强
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The existing physical methods have the following disadvantages: (1) Recycled raw materials are required to be of very high quality and the source is very stable. The quality drop caused during processing cannot be repaired; (3) The quality uniformity of raw materials cannot meet the high quality and continuity requirements of industrialized devices

Method used

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  • Chemical treating method for melt polycondensation high polymer old material regeneration
  • Chemical treating method for melt polycondensation high polymer old material regeneration
  • Chemical treating method for melt polycondensation high polymer old material regeneration

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Embodiment Construction

[0024] Further illustrate the present invention in conjunction with accompanying drawing and embodiment, as figure 1 As shown, the reclaimed material of the present invention is melted into a melt by ordinary deep groove single screw, and then the mechanical impurities and solid impurities in the melt are filtered through a filter to obtain a relatively pure melt, and then homogenized and repolymerized into an integrated horizontal Alcoholysis, homogenization, impurity removal, small molecule removal, and repolymerization are carried out in the type reactor, so that the molecular structure of recycled materials can be readjusted to meet the product requirements of different uses.

[0025] The recovered raw material is melted into a melt through the ordinary deep groove single screw 1, and then the mechanical impurities and solid impurities in the raw material are filtered out through the filter 2 to obtain a relatively pure melt. The quality of the melt at this time is not goo...

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Abstract

The invention relates to a chemical treating method for melt polycondensation high polymer old material regeneration and belongs to the technical field of chemical fiber and plastic processing. According to the method, a molecular chain structure is changed substantially, and organic impurities of polyolefin such as a PVC, a PP, a PE and the like and polyolefin derivatives are removed from a recycled material by the following process procedures of alcoholysis or hydrolysis, homogenization, impurities removal, micromolecule removal and reaggregation in a homogenization reaggregation integratedhorizontal reactor, so that the purity and the quality of a regenerative raw material are improved, and uniformity, impurity content and final quality of formed polyester melt are much higher than indexes; and the polyester melt is widely applied to occasions with higher requirements on the quality of the recycled materials, such as a POY filament yarn, a three-dimensional sandwich, an FDY, non-woven fabric, a moderately strong industrial filament, a reusable bottle and the like, the demand of the raw material and the consumption of petroleum resource are reduced, and the polyester melt is favorable for realizing recycling economy.

Description

technical field [0001] The invention relates to a chemical treatment method for regeneration of molten polycondensation polymer waste materials, which is used to improve the quality of recycling and regeneration of molten polycondensation polymer waste materials, and specifically relates to polyester, polyamide, polycarbonate and other polymers The invention relates to the recycling and utilization of waste materials, which belongs to the technical field of chemical fiber and plastic processing. Background technique [0002] The recycling of existing polymer waste materials is realized either through physical methods or chemical methods. [0003] The characteristic of chemical method is that the whole process takes chemical reaction as the core, and recycled materials need to go through chemical reaction to further improve a certain quality index or several quality indexes. The chemical method can essentially change the structure and improve some internal quality indicators...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G63/78C08G64/20C08J11/10C08G69/00
CPCY02W30/62
Inventor 成强
Owner 成强
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