Flame-retardant antibacterial masterbatch and preparation method thereof

A technology of antibacterial masterbatch and hyperbranched polymer, applied in the field of flame retardant masterbatch, can solve problems such as difficulty in processing and molding of blends

Active Publication Date: 2020-05-05
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that the hyperbranched polymer in the prior art is difficult to process and form the blend when the content of the additive is high, and to provide a flame-retardant and antibacterial product that can improve the content of the hyperbranched polymer and process smoothly. Masterbatch and its preparation method

Method used

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  • Flame-retardant antibacterial masterbatch and preparation method thereof
  • Flame-retardant antibacterial masterbatch and preparation method thereof
  • Flame-retardant antibacterial masterbatch and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] The preparation method of flame-retardant antibacterial masterbatch, concrete steps are as follows:

[0044] (1) prepare metal-modified hyperbranched polymer;

[0045] (1.1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 Is pyrazine-2,3-dicarboxylic acid; B 3 is 1,1,1-tris(hydroxymethyl)propane;

[0046] The prepared hyperbranched polymer molecule containing carboxyl groups in the end groups contains ester groups, the number of carboxyl groups accounts for 25% of the total amount of end groups, the degree of branching is 60%, and the weight average molecular weight is 2000g / mol;

[0047] (1.2) Dissolving the hyperbranched polymer containing carboxyl group in the end group in chloroform to obtain a concentration of 0.7mol / L hyperbranched polymer solution containing carboxyl group in the end group, dissolving cobalt acetate in deionized water to obtain a concentration of 0.8mol / L The met...

Embodiment 2

[0055] The preparation method of flame-retardant antibacterial masterbatch, concrete steps are as follows:

[0056] (1) prepare metal-modified hyperbranched polymer;

[0057] (1.1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 For: 2-carboxyethylphenylphosphinic acid; B 3 For: three (2-carboxyethyl) isocyanurate;

[0058] The prepared hyperbranched polymer molecule containing carboxyl groups in the end groups contains ester groups, the number of carboxyl groups accounts for 27% of the total amount of end groups, the degree of branching is 53%, and the weight average molecular weight is 43000g / mol;

[0059] (1.2) Dissolving the hyperbranched polymer containing carboxyl group in the end group in acetone to obtain a concentration of 0.85mol / L hyperbranched polymer solution containing carboxyl group in the end group, dissolving nickel acetate in deionized water to obtain a concentration of 0.95mo...

Embodiment 3

[0067] The preparation method of flame-retardant antibacterial masterbatch, concrete steps are as follows:

[0068] (1) prepare metal-modified hyperbranched polymer;

[0069] (1.1) Using A 2 +B 3 The synthetic method prepares the hyperbranched polymer that terminal group contains carboxyl group: Wherein A 2 Is: 5-tert-butyl-1,3-benzenedicarboxylic acid; B 3 For: 2,4,5-trihydroxybutyrophenone;

[0070] The prepared hyperbranched polymer molecule containing carboxyl groups in the end groups contains ester groups, the number of carboxyl groups accounts for 25% of the total amount of end groups, the degree of branching is 30%, and the weight average molecular weight is 15000g / mol;

[0071] (1.2) the hyperbranched polymer solution containing carboxyl group in the end group is dissolved in N,N-dimethylformamide to obtain a concentration of hyperbranched polymer solution containing carboxyl group in the end group of 0.9mol / L, copper acetate is dissolved in A metal ion solution w...

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Abstract

The invention relates to a flame-retardant antibacterial master batch and a preparation method thereof. A metal modified hyperbranched polymer and other components are evenly mixed, then the mixture is molten and extruded to prepare the flame-retardant antibacterial master batch, the metal modified hyperbranched polymer is a network polymer formed by crosslinking a hyperbranched polymer containingcarboxyl at end groups and metal ions, has insoluble and non-fusible characteristics, is not solved in most organic solvents under 80 DEG C and is not fused in the range from room temperature to T, Tis greater than or equal to 370 DEG C, and crosslinking is achieved by connecting oxygen atoms on double bonds in the hyperbranched polymer containing carboxyl at end groups with the metal ions through coordinate bonds and connecting acid radical irons at the ends of molecules of the hyperbranched polymer containing carboxyl at end groups with the metal ions through ionic bonds. The metal modified hyperbranched polymer is evenly dispersed in the prepared master batch. The method is simple and easy to operate, the shortcoming is overcome that a traditional hyperbranched polymer cannot serve asa functional additive in the master batch, and the flame-retardant and antibacterial properties of the prepared master batch are good.

Description

technical field [0001] The invention belongs to the field of flame retardant masterbatch, and relates to a flame retardant and antibacterial masterbatch and a preparation method thereof. Background technique [0002] Masterbatch, also known as masterbatch, is a processing aid for polymer materials such as fibers, plastics or films. In the process of polymer material processing and molding, for the convenience of operation, the required various additives, fillers and a small amount of carrier resin are first mixed and kneaded, and then measured, mixed, melted, extruded and pelletized. The granules produced during the processing are master batches. Masterbatch is mainly composed of carrier resin, various fillers and various additives. The content of additives or fillers in masterbatch is several times or even ten times higher than the demand in actual plastic products. [0003] Hyperbranched polymers (HBP) have a tree-like structure (tree-like structure), similar to dendrit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/22C08L67/02C08L23/06C08L67/00C08L87/00C08K5/098
CPCC08J3/223C08J3/226C08J2367/02C08J2423/06C08J2467/00C08J2467/02C08J2487/00C08K5/098
Inventor 孙宾肖露露朱美芳吉亚丽周哲陈珈王斌
Owner DONGHUA UNIV
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