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Polyamine guanidine salt copolymer and its uses in antibiotic polyester and polyamide materials

A guanidine salt polymer and polyamine technology, which is applied to polyamine and guanidine salt polymer and its application in antibacterial polyester and polyamide materials, can solve the problem of poor compatibility with polymer materials and limit antibacterial modification. Solve the problems of agent application, poor heat resistance, etc., to achieve the effects of excellent compatibility, overcoming easy migration and poor durability, and excellent processing performance.

Inactive Publication Date: 2005-01-26
SHANGHAI FUYUAN PLASTICS SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Natural antibacterial agents are restricted by raw materials and processing conditions, and it is not yet possible to achieve large-scale marketization
Organic antibacterial agents have the advantages of fast sterilization speed and wide antibacterial range, but there are also problems such as poor heat resistance, easy oozing, toxicity of leachate, and short service life of washing resistance, so their use has great limitations.
Inorganic antibacterial agents are mainly silver antibacterial agents, which are characterized by safety, heat resistance, and durability. They are currently widely used in fibers, plastics, and building materials. The disadvantage is that they are relatively expensive. And antibacterial slow effect, can not kill bacteria as quickly as organic antibacterial agents, and has almost no inhibitory effect on fungi and molds; at the same time, due to the active chemical properties of silver, it is easy to oxidize and become brown silver oxide, thereby reducing Antibacterial efficacy and affect the appearance of the product; in addition, inorganic antibacterial powder has poor compatibility with polymer materials, and is easy to agglomerate in the matrix resin, which will bring great difficulties to the processing of materials such as spinning and film drawing; inorganic antibacterial agents are passed The heavy metal ions exuded have an antibacterial effect, so they do not meet the national hygienic standards for food packaging materials, and cannot be used in food packaging, kitchen utensils, drinking water pipes and other materials
However, water solubility also limits its application as an antibacterial modifier in plastics, fibers, rubber, coatings, etc.

Method used

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  • Polyamine guanidine salt copolymer and its uses in antibiotic polyester and polyamide materials
  • Polyamine guanidine salt copolymer and its uses in antibiotic polyester and polyamide materials
  • Polyamine guanidine salt copolymer and its uses in antibiotic polyester and polyamide materials

Examples

Experimental program
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Effect test

Embodiment 1

[0055] Take 172g of 1,10-decanediamine and 200g of guanidine carbonate, put them into a 500ml three-necked bottle, under the protection of nitrogen, stir and raise the temperature to 110°C, react for 1 hour, then raise the temperature to 185°C for 8 hours, then add 8.6 g pyromellitic anhydride, the reaction was terminated after 40 minutes.

[0056] Its number-average molecular weight is 8,600, and its thermal decomposition temperature is 370°C. There are characteristic absorption peaks of guanidinium, amine, amide, acid anhydride and other groups in its infrared spectrum.

Embodiment 2

[0058] Take 122g of 1,6-hexamethylenediamine and 98g of guanidine hydrochloride, add them into a 250ml three-necked bottle, under the protection of nitrogen, stir and raise the temperature to 150°C, react for 5 hours, then raise the temperature to 220°C for 8 hours, then add 1.3 g hexamethylene-1,6-diisocyanate, and the reaction was terminated after 100 minutes.

[0059] Its number-average molecular weight is 26,600, and its thermal decomposition temperature is 366°C. There are characteristic absorption peaks of guanidine, amine, amide, isocyanate and other groups in its infrared spectrum.

Embodiment 3

[0061] Take 85g of hexamethylenetetramine and 280g of guanidine nitrate, add them into a 500ml three-necked bottle, under the protection of nitrogen, stir and raise the temperature to 100°C, react for 2 hours, then raise the temperature to 160°C for 1 hour, then add 36.2g Ethylene glycol bisglycidyl ether, the reaction was terminated after 20 minutes.

[0062] Its number-average molecular weight is 3000, and its thermal decomposition temperature is 365°C. There are characteristic absorption peaks of guanidinium, amine, epoxy and other groups in its infrared spectrum.

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Abstract

The invention discloses a polyamine guanidine salt polymer, its making method and uses wherein the polyamine guanidine salt polymer is the functionalized mother particles obtained through reaction between polyesters and polyundecaneamide, after mixing this mother particles with the common polyesters and polyundecaneamide by a finite proportion, various multifilament and plastic products can be obtained.

Description

technical field [0001] The invention belongs to the technical field of high molecular polymer polymerization and processing, and relates to the preparation of a multifunctional macromolecular antibacterial agent containing active end groups, amine groups and guanidinium groups, and the functionalization obtained after reacting with polyester and polyamide Masterbatch, by mixing this kind of masterbatch with ordinary polyester and polyamide in a certain proportion, a variety of fibers and plastic products can be prepared. It has antibacterial and anti-mildew effects with high efficiency, broad spectrum, long-lasting washability, safety and non-toxicity to the human body. Background technique [0002] Antibacterial materials are a new class of materials with antibacterial and bactericidal functions, which are prepared by adding one or several specific antibacterial agents. A variety of polymer materials and their products are widely used in daily life and used in large quantit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G73/00C08L67/00C08L77/06
Inventor 郑安呐管涌
Owner SHANGHAI FUYUAN PLASTICS SCI CO LTD
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