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Fullerene/gutta-percha ultraviolet absorption film material and preparation method and application thereof

The technology of film material and eucommia gum is applied in the field of fullerene/eucommia gum ultraviolet absorption film material and its preparation, which can solve the problems of high cost, reduce field humidity, pesticide residues, etc. UV absorption band, good biodegradability

Active Publication Date: 2020-12-29
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Agricultural control measures include reducing germplasm density, reducing field humidity, and using appropriate basal fertilizers, which have little effect and are greatly affected by the environment. At the same time, they bring certain risks to wheat growth.
Chemical control is currently the most widely used control technology. It mainly uses chemical substances such as carbendazim, cyclostrobin, flufenapyramide or prothioconazole, etc., and there are problems of environmental pollution and pesticide residues.
Biological control uses strains that can control or inhibit Fusarium (wheat scab pathogen) to prevent and control wheat scab, but the effect is slow and the cost is high

Method used

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  • Fullerene/gutta-percha ultraviolet absorption film material and preparation method and application thereof
  • Fullerene/gutta-percha ultraviolet absorption film material and preparation method and application thereof

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preparation example Construction

[0026] The present invention provides the preparation method of fullerene / eucommia gum UV-absorbing film material described in the above technical scheme, comprising the following steps:

[0027] mixing fullerene, Eucommia gum and an organic solvent to obtain a mixed material liquid;

[0028] The mixed material liquid is placed in a flat mold and then dried to obtain a fullerene / eucommia gum ultraviolet absorbing film material.

[0029] The invention mixes fullerene, eucommia gum and organic solvent to obtain a mixed material liquid. In the present invention, the organic solvent preferably includes one or more of toluene, chloroform and petroleum ether, more preferably toluene, chloroform or petroleum ether; in the present invention, the concentration of Eucommia gum in the mixed material liquid Preferably it is 0.05-0.3 g / mL, More preferably, it is 0.06-0.2 g / mL, More preferably, it is 0.08-0.1 g / mL.

[0030] In the present invention, the mixing of fullerene, Eucommia gum a...

Embodiment 1

[0038] (1) Dissolve 1g Eucommia gum in 20mL toluene, add 0.1g fullerene C 60 , at room temperature (25°C) and ultrasonic power 400W, ultrasonic for 1h to obtain the mixed material liquid;

[0039] (2) Pour the mixture liquid in step (1) into a flat mold, and vacuum-dry it for 1 hour at a temperature of 30° C. and a vacuum degree of 0.01 MPa to obtain a fullerene / eucommia glue film with a thickness of 0.4 mm.

[0040] The wheat grains infested by Fusarium graminearum (abbreviated as infected grains) were sprayed with water to allow them to germinate and grow in a natural environment, while covering the infected grains with the fullerene / eucommia gum film prepared in this example Above, use this as the experimental group, and set the infested wheat grains without fullerene / eucommia gum film as the control group; grow to the 5th day (that is, the fullerene / eucommia gum film covered the infected wheat grains 5 days), the incidence rate of Gibberella wheat was 82% in the experimen...

Embodiment 2

[0042] (1) Dissolve 1g Eucommia gum in 3.3mL petroleum ether, add 0.066g fullerene C 60 , at room temperature (25°C) and ultrasonic power of 1000W for 2 hours to obtain a mixed material liquid;

[0043] (2) Pour the mixed material solution in step (1) into a flat mold, and vacuum dry for 2 hours at a temperature of 40°C and a vacuum degree of 0.05 MPa to obtain a fullerene / eucommia glue film with a thickness of 0.5mm.

[0044] The wheat grains infested by Fusarium graminearum (abbreviated as infected grains) were sprayed with water to allow them to germinate and grow in a natural environment, while covering the infected grains with the fullerene / eucommia gum film prepared in this example Above, use this as the experimental group, and set the infested wheat grains without fullerene / eucommia gum film as the control group; grow to the 5th day (that is, the fullerene / eucommia gum film covered the infected wheat grains 5 days), the incidence rate of Gibberella wheat in the experim...

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Abstract

The invention provides a fullerene / gutta-percha ultraviolet absorption film material and a preparation method and application thereof, and belongs to the technical field of composite materials. The fullerene / gutta-percha ultraviolet absorption film material provided by the invention comprises a film matrix and fullerene dispersed in the film matrix, wherein the film matrix is formed by gutta-percha, and the fullerene is C60. The film material provided by the invention is obtained by compounding fullerene C60 and gutta-percha, wherein the fullerene C60 has good ultraviolet absorption capacity,and the gutta-percha has good biodegradability and is environment-friendly, so that the film material obtained by compounding the fullerene C60 and the gutta-percha retains respective characteristics,is good in biodegradability and has a wide ultraviolet absorption band, the ultraviolet absorptivity in the wave band of 200-400 nm almost reaches 100%, and a good prevention and control effect on the gibberella saubinetii is achieved.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a fullerene / eucommia gum ultraviolet-absorbing film material and a preparation method and application thereof. Background technique [0002] Wheat head blight is a worldwide epidemic fungal disease mainly caused by the pathogen Fusarium graminearum Schw. Fusarium head blight will not only reduce crop yield and grain quality, but also reduce the germination rate of seeds. According to calculations, when the ear stage is onset in a medium-endemic year, the diseased ear rate is 30-50%, and the yield can be reduced by 5-15%; Above, the germination rate of infected wheat grains is 24-65% lower than that of normal disease-free wheat grains, and the processed quality of diseased wheat grains after harvest is poor, thereby reducing its commodity value. [0003] According to the occurrence regularity and field epidemic characteristics of wheat scab, wheat scab is generally c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08K3/04C08J5/18A01G13/02
CPCC08J5/18A01G13/02C08J2307/00C08K3/045
Inventor 彭湃董娟娥佘雕魏兴能杨萧昂马傲蕾
Owner NORTHWEST A & F UNIV
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