Lac resin hydrosol and preparation method thereof

A technology of shellac resin and hydrosol, which is applied in the field of hydrosol and its preparation, can solve the problems of unstable emulsion, cumbersome preparation process, and large particles, and achieves long-term storage and use, short preparation process steps, and particle size. The effect of uniform diameter distribution

Active Publication Date: 2014-05-07
THE RES INST OF RESOURCES INSECTS RIRI OF THE CHINESE ACADEMY OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the shellac resin soap-free emulsion can be prepared, it needs to introduce a large amount of salts to cause the instability of the emulsion, and the preparation process is cumbersome and the particles are large

Method used

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  • Lac resin hydrosol and preparation method thereof
  • Lac resin hydrosol and preparation method thereof
  • Lac resin hydrosol and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] 1. Preparation of lac resin ethanol solution

[0046] 0.3kg shellac resin is added in the absolute ethanol of 9.7kg, stirs and dissolves, makes shellac resin ethanol solution, wherein the mass ratio of shellac resin and absolute ethanol is 3:97, i.e. shellac resin ethanol solution The mass percent concentration of the lac resin is 3%, that is to say, add 3 g of lac resin to 97 g of dehydrated ethanol or add 3 kg of lac resin to 97 kg of dehydrated ethanol.

[0047] 2. Preparation of Lac Wax Resin Collagen Solution

[0048] Put 3L of deionized water in a disperser (Ultra-Turrax T 25 digital disperser, IKA, Germany), and add 1L of the ethanol solution of shellac resin prepared in step 1 to the disperser under stirring. Pump (Baoding Lange Constant Flow Pump Co., Ltd., BT100-1J) to flow out the lac resin ethanol solution prepared in step 1 from the liquid column flow nozzle (Dongguan Boyuan Spray Purification Equipment Co., Ltd.) to form a cylindrical liquid flow and add ...

Embodiment 2

[0054] 1. Preparation of lac resin ethanol solution

[0055] 0.6kg shellac resin is added in the absolute ethanol of 9.4kg, stirs and dissolves, makes shellac resin ethanol solution, wherein the mass ratio of shellac resin and absolute ethanol is 6:94, i.e. shellac resin ethanol solution The mass percent concentration of the lac resin in the medium is 6%, that is to say, 6 g of lac resin is added to 94 g of dehydrated ethanol or 6 kg of lac resin is added to 94 kg of dehydrated ethanol.

[0056] 2. Preparation of lac resin collagen solution

[0057] Put 7L of deionized water in a disperser (Ultra-Turrax T 25 digital disperser, IKA, Germany), and add 1L of the ethanol solution of shellac resin prepared in step 1 to the disperser under stirring. The pump flows out the ethanol solution of shellac resin prepared in step 1 from the liquid column flow nozzle, forms a cylindrical liquid flow and flows into the deionized water of the disperser, and controls the diameter of the liquid...

Embodiment 3

[0061] 1. Preparation of lac resin ethanol solution

[0062] 0.7kg shellac resin is added in the dehydrated alcohol of 9.3kg, stirring and dissolving makes shellac resin ethanol solution, wherein the mass ratio of shellac resin and absolute ethanol is 7:93, i.e. shellac resin ethanol solution The mass percent concentration of the shellac resin is 7%, that is to say, add 7g of shellac resin to every 93g of absolute ethanol or add 7kg of shellac resin to 93kg of absolute ethanol.

[0063] 2. Preparation of Lac Wax Resin Collagen Solution

[0064] 10L of deionized water is placed in the disperser, and 1L of the lac resin ethanol solution prepared in step 1 is added to the disperser under agitation, wherein, the lac resin ethanol solution prepared in step 1 is transferred from the liquid column by a constant flow pump Flow nozzle flows out, forms cylindrical liquid flow and flows into the deionized water of dispersing machine, and the diameter of controlling liquid column flow no...

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Abstract

The invention provides lac resin nanoscale hydrosol and a preparation method thereof. The lac resin hydrosol is composed of lac resin and water. The method comprises the following steps: 1), dissolving lac resin in ethanol so as to obtain a lac resin ethanol solution; and 2), dripping the lac resin ethanol solution in deionized water, and distilling to remove ethanol. The lac resin hydrosol prepared by the method is small in particle size, good in dispersivity, storage stability, centrifugal stability and freeze-thaw stability and can reach national first level standard. The method has the advantages of simplicity and suitability for large-scale popularization and application.

Description

technical field [0001] The invention relates to a hydrosol and a preparation method thereof, in particular to a shellac resin hydrosol and a preparation method thereof. Background technique [0002] Lac resin is a natural substance secreted by lac insects—the main component of lac. Lac resin is a mixture of esters and polyesters composed of hydroxy fatty acids and hydroxy sesquiterpene acids. Its average molecular weight is 1000, and its molecular formula is Available C 60 h 90 o 5 It means that each molecule contains at least 1 free carboxyl group, 5 hydroxyl groups, 3 ester groups and 1 aldehyde group. [0003] Since the molecular structure of shellac resin contains multiple functional groups such as hydroxyl, carboxyl, and aldehyde groups, it has some excellent properties based on its multifunctional chemical structure. Shellac resin has strong adhesion, good gloss, stable to ultraviolet rays, good electrical insulation performance, both thermoplastic and thermosettin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J3/075C08L93/02
Inventor 张弘李凯徐涓陈晓鸣郑华冯颖张敏
Owner THE RES INST OF RESOURCES INSECTS RIRI OF THE CHINESE ACADEMY OF FORESTRY
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