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A kind of rosin-based emulsifier and preparation method thereof

An emulsifier and rosin-based technology, applied in rosin adhesives, adhesive types, adhesive additives, etc., can solve problems such as expensive emulsifiers, reduced adhesive bonding strength, environmental and human health hazards, etc., to achieve Improve the bond strength and adhesion, reduce the effect of impact

Active Publication Date: 2018-04-06
广州英科新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phenolic surfactants have unreacted phenol residues. Phenolic substances are well known to be harmful to the environment and human health. This type of emulsifier also acts like a plasticizer, which will reduce the bonding strength of the adhesive.
Moreover, since the molecular structure of rosin resin contains a fat-soluble phenanthrene ring skeleton structure, it is difficult to emulsify. Traditional methods require the use of toxic organic solvents, high-pressure homogeneous pumps or higher temperatures to emulsify
Therefore, emulsifiers are not only expensive and cause great environmental pollution, but also cause more side reactions during the emulsification process.

Method used

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  • A kind of rosin-based emulsifier and preparation method thereof
  • A kind of rosin-based emulsifier and preparation method thereof
  • A kind of rosin-based emulsifier and preparation method thereof

Examples

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Embodiment 1

[0030] An embodiment of the preparation method of the rosin-based emulsifier of the present invention, the rosin-based emulsifier described in this embodiment is prepared by the following method:

[0031] (1) In a 1000ml four-necked flask with a stirring device and a water separator, add 400g of masson pine rosin, under the protection of nitrogen, heat to 160°C to melt it, add 50g of glycerin, and heat up to 270°C for esterification , during the reaction process, take samples to measure the acid value, and lower the temperature when the acid value is less than 10mgKOH / g.

[0032] (2) When the temperature dropped to 150°C, 70g of maleic anhydride was added and the temperature was raised to 190°C, and the addition reaction was carried out at a temperature of 4 hours.

[0033] (3) After the addition reaction is completed, add 32g of phthalic anhydride and 80g of diethylene glycol, raise the temperature to 220°C for esterification reaction, take samples during the reaction to dete...

Embodiment 2

[0035] An embodiment of the preparation method of the rosin-based emulsifier of the present invention, the rosin-based emulsifier described in this embodiment is prepared by the following method:

[0036] (1) In a 1000ml four-neck flask equipped with a stirring device and a water separator, add 400g of pine pine rosin, under the protection of nitrogen, heat to 160°C to melt it, add 60g of trimethylolpropane, and heat up to 270°C Carry out the esterification reaction, take samples to measure the acid value during the reaction, and lower the temperature when the acid value is less than 10mgKOH / g.

[0037] (2) When the temperature drops to 150°C, add 70g of fumaric anhydride and raise the temperature to 200°C, and keep the temperature for 4 hours to carry out the addition reaction.

[0038] (3) After the addition reaction is completed, add 32g of phthalic anhydride and 80g of diethylene glycol, raise the temperature to 220°C for esterification reaction, take samples during the re...

Embodiment 3

[0040] An embodiment of the preparation method of the rosin-based emulsifier of the present invention, the rosin-based emulsifier described in this embodiment is prepared by the following method:

[0041](1) In a 1000ml four-neck flask equipped with a stirring device and a water separator, add 400g of tall oil rosin, under the protection of nitrogen, heat to 160°C to melt it, add 60g of trimethylolpropane, and heat up to 270°C Carry out the esterification reaction, take samples to measure the acid value during the reaction, and lower the temperature when the acid value is less than 10mgKOH / g.

[0042] (2) When the temperature drops to 150°C, add 70g of fumaric anhydride and raise the temperature to 200°C, and keep the temperature for 4 hours to carry out the addition reaction.

[0043] (3) After the addition reaction is completed, add 32g of phthalic anhydride and 80g of diethylene glycol, raise the temperature to 220°C for esterification reaction, take samples during the reac...

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Abstract

The invention discloses a preparation method of a rosin-based emulsifying agent. The method comprises the following steps: (1) carrying out an esterification reaction on rosin and polylol at 250-280 DEG C until the acid value is smaller than 10mgKOH / g; stopping the reaction to obtain an ester; (2) carrying out an addition reaction on the ester obtained by the step (1) and unsaturated acid anhydride or carboxylic acid at 160-210 DEG C to obtain an addition product; (3) carrying out an esterification reaction on the addition product obtained by the step (2), organic polycarboxylic acid and dihydric alcohol at 180-250 DEG C until the acid value is 60mgKOH / g-90mgKOH / g at 180-250 DEG C; and stopping the reaction to obtain the rosin-based emulsifying agent. The invention also discloses the rosin-based emulsifying agent prepared by the preparation method of the rosin-based emulsifying agent. The rosin-based emulsifying agent prepared by the invention is applicable to rosin resin emulsion; and influences on the bonding strength by the emulsifying agent can be reduced, and the bonding strength and the adhesive force of the emulsifying agent to the aspect of application of an adhesive are greatly improved.

Description

technical field [0001] The invention relates to the technical field of adhesives, in particular to a rosin-based emulsifier and a preparation method thereof. Background technique [0002] Adhesive has the characteristics of wide application, simple use and high economic benefit, and it replaces mechanical connection in more and more occasions. As people's awareness of environmental protection continues to increase, water-based and hot-melt adhesives are gaining more and more attention. Rosin resin mainly acts as a tackifier in adhesives, and has been widely used due to its excellent performance. [0003] For a long time, the emulsifiers used to disperse rosin resin mainly include: nonylphenol polyoxyethylene ether, octylphenol polyoxyethylene ether, alkyl sulfonate, fatty alcohol sulfate, and phosphate ester. Phenolic surfactants contain unreacted phenols, and phenolic substances are well known to be harmful to the environment and human health. This type of emulsifier also...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J11/08C09J133/08C09J193/04C09F1/04
CPCC08L2205/025C08L2205/03C09F1/04C09J11/08C09J133/08C08L93/04
Inventor 卢渊彭迎春徐社阳
Owner 广州英科新材料有限公司