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Terpene alcohol and chitosan-containing bactericidal composition and preparation method and application thereof

A fungicide composition and chitosan technology, applied in the field of pesticides, can solve problems such as research and application that have not been reported in public literature, and achieve the effects of obvious synergistic effect, increased action rate, and reduced cost

Active Publication Date: 2019-03-08
GUANGXI RES INST OF CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no public reports on the research and application of the three active ingredients of terpene alcohol, chitosan and L-α-terpineol

Method used

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  • Terpene alcohol and chitosan-containing bactericidal composition and preparation method and application thereof
  • Terpene alcohol and chitosan-containing bactericidal composition and preparation method and application thereof
  • Terpene alcohol and chitosan-containing bactericidal composition and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Example 1 (10% terpene alcohol chitosan L-α-terpineol microemulsion)

[0036] The raw material formula of the present embodiment is:

[0037] Terpene alcohol 6%, chitosan 1%, L-α-terpineol 3%, N-methylpyrrolidone 8%, sodium dodecylbenzenesulfonate 6%, alkylaryl polyoxypropylene polyoxygen Vinyl ether 12%, propylene glycol 5%, and the balance is water.

[0038] The preparation method of this embodiment is:

[0039] Fully stir and dissolve terpene alcohol, L-α-terpineol, N-methylpyrrolidone, sodium dodecylbenzenesulfonate, alkylaryl polyoxypropylene polyoxyethylene ether, and propylene glycol in a container to prepare a uniform the oil phase. Stir and mix chitosan and water in a container to prepare a uniform water phase. Finally, slowly add the oil phase into the water phase of the formulation amount, mix and stir for 1 hour, and obtain a composition microemulsion with an active ingredient content of 10%.

Embodiment 2

[0040]Example 2 (22% terpene alcohol chitosan L-α-terpineol microemulsion)

[0041] The raw material formula of the present embodiment is:

[0042] Terpene alcohol 10%, chitosan 2%, L-α-terpineol 10%, chloroform 14%, calcium dodecylbenzenesulfonate 5%, phenylethylphenol polyoxyethylene ether 3%, fatty acid glycerin 2% ester, 2% ethylene glycol, 1% propylene glycol, and the balance is water.

[0043] The preparation method of this embodiment is:

[0044] Fully stir and dissolve terpene alcohol, L-α-terpineol, calcium dodecylbenzenesulfonate, phenethylphenol polyoxyethylene ether, fatty acid glyceride, ethylene glycol, and propylene glycol in a container to prepare a uniform oily phase. Stir and mix chitosan and water in a container to prepare a uniform water phase. Afterwards, the oil phase was slowly added into the water phase of the formulation amount, mixed and stirred for 1.5 hours to obtain a composition microemulsion with an active ingredient content of 17%.

Embodiment 3

[0045] Example 3 (20% terpene alcohol chitosan L-α-terpineol aqueous emulsion)

[0046] The raw material formula of the present embodiment is:

[0047] Terpene alcohol 9%, chitosan 1%, L-α-terpineol 10%, calcium dodecylbenzenesulfonate 5%, dibenzyl biphenyl polyoxyethylene ether 10%, xylene 10% , isooctyl alcohol 0.5%, ethylene glycol 1%, sorbitol 1%, polyvinyl alcohol 1%, and the balance is water.

[0048] The preparation method of this embodiment is:

[0049] Xylene, terpene alcohol, L-α-terpineol, calcium dodecylbenzenesulfonate, dibenzyl biphenyl polyoxyethylene ether, isooctyl alcohol, ethylene glycol, sorbitol, and polyvinyl alcohol are sequentially Add it into the reaction container, stir evenly and completely dissolve to obtain the oil phase, stir and mix the chitosan and water in the container to prepare a uniform water phase. Under the high-shear condition of the homogenizer (rotating speed: 4000-5000r / min), slowly add the oil phase to the water phase, after the a...

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Abstract

The invention discloses a terpene alcohol and chitosan-containing bactericidal composition, which is prepared from the following active ingredients in parts by weight: 1 to 20 parts of terpene alcoholand 1 to 5 parts of chitosan, and 1 to 20 parts of L-alpha-terpineol. By combining the terpene alcohol and the chitosan, the terpene alcohol and chitosan-containing bactericidal composition has a relatively good synergistic effect; the L-alpha-terpineol is compounded with the terpene alcohol and the chitosan, so that the functions are complementary, and the synergistic effect is obvious; the terpene alcohol and chitosan-containing bactericidal composition can kill plant pathogenic bacteria more effectively, and has a particularly good prevention and treatment effect on cucumber downy mildew,pearl plum anthracnose and mango powdery mildew.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and in particular relates to a fungicide composition containing terpene alcohol and chitosan, a preparation method and application thereof. Background technique [0002] Cucumber downy mildew Cucumber downy mildew, commonly known as "happy horse dry" and "dry leaves", can damage adult plants at the seedling stage, mainly damages leaves and stems, less tendrils and pedicels. Cucumber downy mildew is the most common and serious disease in cucumber cultivation. The onset of the disease is fierce, the onset is serious, and the spread is fast. If it is not prevented and controlled in time, it will cause devastating losses to cucumbers. [0003] Longtan Pearl Plum is an excellent late-maturing variety selected from local wild plums in Tian'e County, Guangxi. In 2010, it was registered as a geographical indication of agricultural products by the Ministry of Agriculture. One of the leading industrie...

Claims

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Application Information

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IPC IPC(8): A01N31/06A01N31/04A01N43/16A01P3/00
CPCA01N31/04A01N31/06A01N43/16
Inventor 韦茂春易芬远王超杨淑兰李略阮恒
Owner GUANGXI RES INST OF CHEM IND CO LTD
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