Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of composite antibacterial film and its preparation method and application

A compound antibacterial and prothioconazole technology, which is applied in the field of composite antibacterial film and its preparation, can solve the problems of female reproductive system harm, teratogenicity, long half-life, etc.

Active Publication Date: 2021-11-23
INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has not been registered in China before 2019, mainly because prothioconazole has potential harm to the female reproductive system, and the metabolite desulfur-prothioconazole produced after spraying in the environment is teratogenic, and its half-life exists for a long time Longer, potential risk to the health of the applicator
Therefore, the application of prothioconazole is limited in China

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of composite antibacterial film and its preparation method and application
  • A kind of composite antibacterial film and its preparation method and application
  • A kind of composite antibacterial film and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0050] The present invention also provides the preparation method of the composite antibacterial film described in the above technical scheme, comprising the following steps:

[0051] Mixing poly(3-hydroxybutyrate-co-4-hydroxybutyrate), prothioconazole and an organic solvent to obtain a mixed solution;

[0052] The mixed solution is cast into a film, and the organic solvent is completely volatilized to obtain the composite antibacterial film.

[0053] The invention mixes poly(3-hydroxybutyrate-co-4-hydroxybutyrate), prothioconazole and an organic solvent to obtain a mixed solution. In the present invention, the mixing is preferably carried out under the condition of magnetic stirring, and the time of the magnetic stirring is preferably 1-2 hours.

[0054] After the mixed solution is obtained, the present invention casts the mixed solution to form a film, and waits for the organic solvent to volatilize completely to obtain the composite antibacterial film. The present inventi...

Embodiment 1

[0059] The mass ratio of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) and prothioconazole is 1.95:0.05, 1.9:0.1, 1.8:0.2, 1.6:0.4, 1.2:0.8, 2.0:0.0 Mix and dissolve with chloroform, place on a magnetic stirrer, stir for 2 hours until completely dissolved, and obtain a mixed solution with a final concentration of 50mg / mL; measure 10mL of the mixed solution with a graduated cylinder, and cast them on the surface of a 90mm glass petri dish , placed in a fume hood at room temperature for 5 days, until the organic solvent evaporates completely, and finally obtain composite antibacterial films with different prothioconazole contents, which are respectively recorded as composite antibacterial film 1, composite antibacterial film 2, composite antibacterial film 3, Composite antibacterial film 4, composite antibacterial film 5 and composite antibacterial film 6.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
concentrationaaaaaaaaaa
Login to View More

Abstract

The invention provides a composite antibacterial film and its preparation method and application, which belong to the technical field of thin film materials and are cast from a mixed solution comprising poly(3-hydroxybutyrate-co-4-hydroxybutyric acid ester), prothioconazole and organic solvent; the mass ratio of the poly(3-hydroxybutyrate-co-4-hydroxybutyrate) and prothioconazole is (1.0~2.0): (0.01~1.0 ). In the present invention, by reasonably controlling the mass ratio of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) and prothioconazole in the mixed solution, the doping amount of prothioconazole in the film can be ensured. The antibacterial properties of the film can not affect the growth and development of plants, and can be used for potted plants, expanding the application range of prothioconazole.

Description

technical field [0001] The invention relates to the technical field of film materials, in particular to a composite antibacterial film and its preparation method and application. Background technique [0002] Poly(3-hydroxybutyrate-co-4-hydroxybutyrate) (P(3HB-co-4HB), hereinafter referred to as PHB) is a kind of aliphatic polyester accumulated in prokaryotic microorganisms. As a biodegradable material, PHB has the characteristics of non-toxicity, biocompatibility, biodegradability, good thermal processing performance, can be produced by renewable energy, high degree of polymerization, high crystallinity and structural regularity of repeating units. It has good application potential in the preparation of biodegradable plastics, biomedicine, and agricultural applications. P(3HB-co-4HB) is not easily hydrolyzed rapidly in the environment, but it can be degraded by microorganisms in the environment. It can be degraded into carbon dioxide and water under aerobic conditions, and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08K5/405C08J5/18A01G13/02A01G13/00
Inventor 曹立冬陈歌黄啟良曹冲赵鹏跃郑永权
Owner INST OF PLANT PROTECTION CHINESE ACAD OF AGRI SCI