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Finishing agent containing bendiocarb microcapsules and application of finishing agent

A technology of microcapsule finishing and dichrocarb, applied in applications, insect nets, household appliances, etc., can solve the problems of poor anti-mosquito effect of anti-mosquito nets, achieve long-term anti-mosquito function, stable structure, and broad market foreground effect

Inactive Publication Date: 2016-06-22
然晟(上海)实业发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a microcapsule finishing agent containing Echrocarb and its application to solve the problem that the current anti-mosquito nets have poor anti-mosquito effect due to drug resistance

Method used

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  • Finishing agent containing bendiocarb microcapsules and application of finishing agent
  • Finishing agent containing bendiocarb microcapsules and application of finishing agent
  • Finishing agent containing bendiocarb microcapsules and application of finishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1 prepares microcapsules of evil insects by interfacial polymerization

[0032] The preparation process of the evil insect microcapsules of the present invention is as follows:

[0033] a) Preparation of the oil phase: Slightly dissolve the pest with a purity of 96.5% in dichloromethane, add TDI (toluene-2,4-diisocyanate) and mix evenly as the oil phase;

[0034] b) Prepare the water phase: use Tween 80 and Span 80 as an emulsifier with a mass ratio of 1:1, the HLB value of the emulsifier is 9.7, disperse the emulsifier in deionized water, Carry out emulsification under the speed, obtain water phase;

[0035] c) Preparation of emulsion: slowly add the oil phase of step a) to the water phase of step b) at a rotational speed of 550r / min to obtain a uniform and stable O / W emulsion;

[0036] d) Microencapsulation: transfer the emulsified emulsion into a three-necked flask, add DETA, and raise the temperature to 60°C at a stirring rate of 550r / min, and keep it w...

Embodiment 2

[0039] Embodiment 2 prepares the evil insect microcapsule by complex coacervation method

[0040] The preparation process of the compound coacervation method of the present invention is as follows:

[0041] a) Preparation of a negatively charged system: dissolving sodium tripolyphosphate in water to obtain a negatively charged solution;

[0042] b) Preparation of a positive charge system: dissolving chitosan in acetic acid, controlling the pH at 4.5, and then adding difencarb with a purity of 96.5%, to obtain a positive charge mixture;

[0043]c) Agglomeration: adding the positively charged mixed liquid in step b) dropwise to the negatively charged solution in step a), the positively charged polymer wall material and the negatively charged polymer wall material are coagulated, Control the temperature at 60°C and keep it warm for 50 minutes;

[0044] d) Microencapsulation: Add the curing agent glutaraldehyde dropwise to the coagulation product of step c), stir at a rate of 50...

Embodiment 3-5

[0047] Embodiment 3-5 contains evil bug microcapsule finishing agent

[0048] The finishing agent containing dicarbamil microcapsules includes dibafencarb microcapsules, an adhesive and a cross-linking agent, the specific composition of which is shown in Table 1.

[0049] Table 1 Composition of the finishing agent containing the micro-capsules of evil insects

[0050]

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Abstract

The invention relates to the field of anti-mosquito fabrics, in particular to a finishing agent containing bendiocarb microcapsules and application of the finishing agent. The finishing agent containing the bendiocarb microcapsules is prepared from the following components of the bendiocarb microcapsules, an adhesive and a cross-linking agent, wherein the bendiocarb microcapsules comprise capsule walls and capsule cores; the capsule cores are bendiocarb or compositions containing the bendiocarb. The fabric is subjected to after treatment in padding liquid containing the finishing agent containing the bendiocarb microcapsules, so that a long-acting anti-mosquito fabric can be obtained. The fabric can be used for producing a mosquito net. According to the technical scheme provided by the invention, a bendiocarb active substance with an anti-mosquito effect is firmly and stably attached to the surface of the fabric by preparing the proper finishing agent, no special requirement on materials needs to be met, a processing method is simple and the cost is low; the bendiocarb existing in a form of the microcapsules is stable in structure, and the activity of the bendiocarb can be slowly released; the produced fabric is washable and can maintain a long-acting anti-mosquito function; the finishing agent containing the bendiocarb microcapsules is used for processing the mosquito net and has a broad market prospect.

Description

technical field [0001] The invention relates to the technical field of anti-mosquito fabrics, in particular to a microcapsule finishing agent containing benzocarb and its application. Background technique [0002] More than half of the world's people live under the threat of mosquito-borne diseases. Malaria is one of the main diseases transmitted by mosquitoes. Africa is the hardest hit area of ​​malaria epidemics. The number of people who die from malaria every year accounts for about 1 / 3 of the deaths in Africa. Considering that young children and pregnant women are the most vulnerable in areas with high malaria transmission, the World Health Organization (WHO) recommends prioritizing their protection by distributing them with free or highly subsidized mosquito nets and gradually achieving universal coverage. According to preliminary data provided by the Kenyan government, from 2004 to 2006 in the country, the number of young children protected by mosquito nets increased n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/425D06M23/12A47C29/00D06M101/32D06M101/34
CPCA47C29/006D06M13/425D06M23/12D06M2101/32D06M2101/34Y02A50/30
Inventor 林华利
Owner 然晟(上海)实业发展有限公司
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