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Preparation method of artemisia scoparia volatile oil/epoxy resin composite material

An epoxy resin and composite material technology, which is applied in the field of polymer materials, can solve the problems of few types of natural antibacterial agents, less than ideal antibacterial effect, and low temperature resistance, and achieves long antibacterial time, sustainable development and low cost. Effect

Active Publication Date: 2019-07-19
石家庄元鼎新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic nano-antibacterial agents are used due to their high specific surface energy and long-term stability, such as nanoparticles of silver, zinc oxide, and cuprous oxide (CN201610562103.6), but they are limited in medicine due to the introduction of heavy metal ions
Organic antibacterial agents mainly contain some functional groups such as quaternary ammonium salts, phenolic hydroxyl groups or halogens (CN105647453A), but their disadvantages such as low temperature resistance, difficulty in grafting and copolymerizing small molecules with polymers, and certain toxicity are also limited in application.
Natural antibacterial agents are derived from natural plant components, which are environmentally friendly and sustainable. For example, CN103589095A discloses a kind of antibacterial plastic containing natural antibacterial agents, adding 10-20 parts of natural antibacterial agents (it consists of: sugarcane powder 40-50 parts, 5-15 parts of zeolite, 2-5 parts of glass fiber, 5-15 parts of natural silicate), obtained antibacterial plastics with an antibacterial rate of more than 70% to Escherichia coli and Staphylococcus aureus; CN201510815702.X It is reported that Ginkgo biloba extract was used as an antibacterial agent to prepare epoxy potting adhesive; however, there are few types of natural antibacterial agents currently used, and coupling agents need to be used to solve compatibility and dispersion problems when combined with polymers, and the antibacterial effect is not enough Ideal, therefore limited

Method used

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  • Preparation method of artemisia scoparia volatile oil/epoxy resin composite material
  • Preparation method of artemisia scoparia volatile oil/epoxy resin composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In parts by weight, 20 parts of epoxy resin (bisphenol A type epoxy resin) and 10 parts of toughening agent (liquid nitrile rubber) are added into the stirring tank for high-speed dispersion, vacuum defoaming, and the first component is obtained for subsequent use;

[0041] In parts by weight, add 0.5 parts of Artemisia annua volatile oil into 25 parts of curing agent (hexahydrophthalic anhydride), disperse and stir at a high speed in a stirring tank until dissolved, add 0.1 part of accelerator (2,4,6-three (two methylaminomethyl) phenol), vacuum defoaming, to obtain component B for subsequent use;

[0042] Mix components A and B evenly according to the weight ratio of 1:1, then put them into a vacuum oven for degassing, and obtain a uniform liquid such as figure 1 (a).

[0043] Pour the above mixture into a preheated mold and place it in a 180°C oven for curing for 1 hour to obtain a yellow Artemisia annua volatile oil / epoxy resin composite material, such as figure 1...

Embodiment 2

[0046] In parts by weight, 45 parts of epoxy resins (cycloaliphatic epoxy resins) are added into a stirred tank for high-speed dispersion, vacuum defoaming, to obtain component A for subsequent use;

[0047] In parts by weight, add 3 parts of Artemisia annua volatile oil into 50 parts of curing agent (ethylenediamine), disperse and stir at a high speed in the stirring tank until dissolved, add 0.5 parts of accelerator (2-ethyl-4-methyl imidazole), vacuum defoaming, to obtain component B for subsequent use;

[0048] Mix components A and B evenly in a weight ratio of 1:1, and then put them in a vacuum oven for degassing;

[0049] The above mixture was poured into a preheated mold, and placed in an oven at 160°C for 2 hours to cure to obtain the Artemisia annua volatile oil / epoxy resin composite material.

[0050] After testing, the curing temperature of the volatile oil of Artemisia annua volatile oil / epoxy resin composite material is 150.2°C, the antibacterial rate against Esc...

Embodiment 3

[0053] In parts by weight, add 40 parts of epoxy resin (hydroxymethyl bisphenol A type epoxy resin) and 7 parts of toughening agent (polyvinyl chloride) into the stirring tank for high-speed dispersion, vacuum defoaming, and obtain the first component for future use. ;

[0054] In parts by weight, add 8 parts of volatile oil of Artemisia annua obtained into 40 parts of curing agent (tetrahydrophthalic anhydride), disperse and stir at a high speed in the stirring tank until dissolved, add 0.2 parts of accelerator (N-p-chlorophenyl-N, N'-dimethylurea), vacuum defoaming, obtains component B for subsequent use;

[0055] Mix components A and B evenly according to the weight ratio of 1:1.5, and then put them into a vacuum oven for degassing;

[0056] The above mixture was poured into a preheated mold, placed in an oven at 170° C. for 1.5 h to cure, and a yellow Artemisia annua volatile oil / epoxy resin composite material was obtained.

[0057] After testing, the curing temperature ...

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Abstract

The invention relates to a preparation method of an artemisia scoparia volatile oil / epoxy resin composite material. According to the invention, artemisia scoparia volatile oil, epoxy resin, a flexibilizer, a curing agent, an accelerant and the like are added into a system according to a certain proportion and are uniformly mixed, and the reaction temperature and time are controlled, so that an antibacterial epoxy resin composite material is obtained. The preparation method provided by the invention aims to obtain epoxy resin with an antibacterial function by taking the natural plant artemisiascoparia extract-artemisia scoparia volatile oil as an antibacterial agent, the performance of the epoxy resin is basically maintained, and the preparation method is similar to preparation of traditional epoxy resin, and is beneficial to industrial production.

Description

technical field [0001] The invention relates to the field of macromolecular materials; in particular, it relates to a method for preparing an wormwood volatile oil / epoxy resin composite material. The antibacterial epoxy resin composite material is prepared simply and effectively by using natural wormwood wastes through pouring molding. Background technique [0002] Due to its excellent mechanical properties, electrical properties, processing properties, adhesion, weather resistance, water resistance and thermal stability, epoxy resin is widely used in electronic equipment, aerospace, paint printing and other fields. At the same time, the epoxy resin forms an interpenetrating network polymer anti-corrosion layer structure after curing, which can block the change of the coating, so that it can be used in marine and environmental antifouling. However, poor antibacterial performance leads to the growth of bacteria, which often affects the use effect of epoxy resin materials in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L9/02C08L27/06C08L13/00C08K5/00C08K5/07C08K5/05C08K5/01
CPCC08L63/00C08L9/02C08K5/00C08K5/07C08K5/05C08K5/0058C08K5/01C08L27/06C08L13/00
Inventor 吴纯闫永思王昱程戚嵘嵘宰建陶钱雪峰
Owner 石家庄元鼎新材料有限公司
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