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Preparation method and application of monomer-residue-free high-activity tackifying chain extender

A technology of viscosity-increasing chain extender and monomer residue, which is applied in the field of viscosity-increasing chain extender and its preparation, which can solve the problems of difficult escape and short residence time of the extruder, and achieve high softening point, easy feeding, and monomer The effect of low residue

Pending Publication Date: 2022-01-18
FINE BLEND POLYMER SHANGHAI CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the residence time in the extruder is too short, and the monomer is wrapped by the melt, so it is not easy to escape from the melt

Method used

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  • Preparation method and application of monomer-residue-free high-activity tackifying chain extender
  • Preparation method and application of monomer-residue-free high-activity tackifying chain extender
  • Preparation method and application of monomer-residue-free high-activity tackifying chain extender

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Embodiment Construction

[0036] The present invention will be described in detail below in conjunction with specific embodiments. The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

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Abstract

The invention provides a preparation method and application of a monomer-residue-free high-activity tackifying chain extender. The preparation method comprises the following steps: mixing an aromatic vinyl monomer, an acrylate monomer, an initiator and a solvent or water, carrying out heating for polymerization, and carrying out double-screw secondary reaction granulation to prepare the monomer-residue-free tackifying chain extender. The epoxy functionalized chain extender disclosed by the invention can be applied to recycled polyester structure materials, and can be applied to repair and growth of bio-based biodegradable plastic molecular chains with polyester structures. The preparation method is simple in process control and low in investment, and the produced monomer-residue-free high-activity tackifying chain extender is stable in composition, simple to use and widely applicable to the fields of medical treatment, packaging, household appliances, automobiles and the like. The method has very good application prospects and industrial values.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and relates to a preparation method and application of a high-activity viscosity-increasing chain extender without monomer residues, in particular to a viscosity-increasing and chain-extending agent that can be used for degradable polyester and recycled polyester Agents and their preparation methods and applications. Background technique [0002] At present, the global demand for biodegradable plastics is also showing a rapid growth trend. It is expected to reach 3.5 million tons by 2021, with an average annual growth rate of 16.7%. Among them, Europe has the largest demand, accounting for 31%, North America and China account for 28% and 20% respectively. And my country will also gradually implement the plastic restriction order. The National Development and Reform Commission and the Ministry of Ecology and Environment recently issued the "Opinions on Further Strengthening Plastic Pollut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/32C08F220/14C08L67/04C08L25/14C08L33/14
CPCC08F212/08C08F220/325C08L67/04C08L2205/05C08F220/14C08L25/14C08L33/14Y02W30/62
Inventor 朱从山段浩史鹏伟汤俊杰
Owner FINE BLEND POLYMER SHANGHAI CO LTD
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