Insect sex pheromone micro-capsule based on multiwalled carbon nanotube

A technology of multi-walled carbon nanotubes and pheromones, applied in the field of insect pheromone microcapsules, can solve the problem of lack of insect pheromone attractants, achieve improved storage stability, simple and easy preparation process, and high loading capacity Effect

Active Publication Date: 2016-06-22
INST OF PLANT PROTECTION FAAS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the field of agricultural pest control, there are no

Method used

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  • Insect sex pheromone micro-capsule based on multiwalled carbon nanotube
  • Insect sex pheromone micro-capsule based on multiwalled carbon nanotube
  • Insect sex pheromone micro-capsule based on multiwalled carbon nanotube

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] The method for preparing insect sex pheromone microcapsules based on multi-wall carbon nanotubes includes the following steps:

[0030] 1) Dissolve insect sex pheromone in an organic solvent in proportion to prepare a certain concentration of insect sex pheromone solution;

[0031] 2) Place the carbon nanotubes in a centrifuge tube, slowly add the insect sex pheromone solution, and mix well to obtain a mixture;

[0032] 3) Place the mixture on a constant temperature shaker, and load the mixture at 20-25° C. and 100-150 r / min for 12-24 hours to obtain the microcapsules.

[0033] The sustained-release effect of the loaded sample is expressed by the effective ingredient content of the insect sex pheromone concentration after the release, and the calculation formula is:

[0034] Active ingredient content% = insect sex pheromone concentration / theoretical concentration×100%.

[0035] In order to make the content of the present invention easier to understand, the technical solutions of t...

Example Embodiment

[0036] Example 1 and Comparative Experiment A

[0037] ①Example 1: Weigh 10mg of multi-walled carbon nanotubes into a 1.5mL centrifuge tube, add 50μL of Z9E11-14Ac / n-hexane solution with a concentration of 0.2mL / mL, mix well and place it on a constant temperature shaker. Loaded for 24h under conditions of 25°C and rotation speed of 150r / min, after the reaction is completed, an insect sex pheromone microcapsule loaded with multi-wall carbon nanotubes is obtained.

[0038] ②Comparative experiment A: Weigh 50mg of ordinary activated carbon particles into a 1.5mL centrifuge tube, add 50μL of 0.2mL / mL Z9E11-14Ac / n-hexane solution, mix well and place on a constant temperature shaker at a temperature of 25℃ , Load for 24h at a speed of 150r / min. After the reaction is complete, an insect sex pheromone microcapsule loaded with ordinary activated carbon particles is obtained.

[0039] ③Comparing the residual amount of microcapsules released by gas chromatography

[0040] The two kinds of micro...

Example Embodiment

[0042] Example 2 and Comparative Experiment B

[0043] ①Example 2: Weigh 50mg of multi-walled carbon nanotubes in a 1.5mL centrifuge tube, add 50μL of Z9E11-14Ac / ethanol solution with a concentration of 1.0mL / mL, mix well and place on a constant temperature shaker. It was loaded for 12 hours at a temperature of ℃ and a rotating speed of 100r / min. After the reaction was completed, an insect sex pheromone microcapsule loaded with multi-walled carbon nanotubes was obtained.

[0044] ②Comparative experiment B: Weigh 70mg of ordinary activated carbon pellets into a 1.5mL centrifuge tube, add 50μL of Z9E11-14Ac / n-hexane solution with a concentration of 1.0mL / mL, mix well and place on a constant temperature shaker at a temperature of 20℃ , Load 12h under the condition of rotating speed 100r / min, after the reaction is completed, an insect sex pheromone microcapsule loaded with ordinary activated carbon particles is obtained.

[0045] ③Comparing the residual amount of microcapsules released ...

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Abstract

The invention discloses an insect sex pheromone micro-capsule based on a multiwalled carbon nanotube. The micro-capsule is composed of a capsule wall and a core material. The multiwalled carbon nanotube is used for making the capsule wall, and the core material comprises insect sex pheromones (Z,E)-9,12-tetradecadienyl acetate or (Z,E)-9,11-tetradecadienyl acetate. The multiwalled carbon nanotube has a special seamless hollow nanoscale coaxial cylinder structure and has a larger specific area and higher loading capacity. The multiwalled carbon nanotube is used for making the capsule wall, the loading capacity of the insect sex pheromones can be larger, slow release of the insect sex pheromones in the micro-capsule can be achieved, the lasting, efficient and stable pest trapping and killing effect is achieved, and storage stability is improved. Meanwhile, the dosage of an organic solvent is small in the preparation process of the micro-capsule, environmental pollution caused in the use process can be avoided, and the micro-capsule is an efficient and environment-friendly material.

Description

Technical field [0001] The invention belongs to the technical field of agricultural insect pest control, and specifically relates to an insect sex pheromone microcapsule based on multi-wall carbon nanotubes. Background technique [0002] At present, the control of agricultural pests is still based on chemical pesticides. However, due to the extensive use of chemical pesticides, agricultural pests have generally developed resistance. How to effectively control its damage while reducing the environmental pollution of chemical pesticides and the harm to natural enemies and insects is an urgent problem to be solved. With the rapid development of insect chemical ecology research, insect sex pheromone control technology has been widely used in comprehensive pest management. The principle is to release artificially synthesized sex pheromone in the field to trap and kill heterosexual adults, thereby reducing or killing the offspring population of pests to achieve the purpose of preventi...

Claims

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Application Information

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IPC IPC(8): A01N25/28A01N37/02A01P19/00
CPCA01N25/28A01N37/02
Inventor 陈艺欣魏辉田厚军林硕陈勇
Owner INST OF PLANT PROTECTION FAAS
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