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Preparation method of deodorizing type flexible polyurethane foam containing long-acting and slow-release plant essential oil

A plant essential oil and soft foam technology, which is applied in the field of preparation of deodorant long-acting slow-release plant essential oil polyurethane soft foam, can solve the problems of no deodorant performance and achieve the effect that it is not easy to fall off

Active Publication Date: 2015-12-09
威海神舟信息技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no product on the market that adds natural plant essential oils with long-term sustained-release properties to polyurethane flexible foam products, and there are no reports on the application of cyclodextrin to make polyurethane flexible foam have deodorizing properties.

Method used

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  • Preparation method of deodorizing type flexible polyurethane foam containing long-acting and slow-release plant essential oil
  • Preparation method of deodorizing type flexible polyurethane foam containing long-acting and slow-release plant essential oil
  • Preparation method of deodorizing type flexible polyurethane foam containing long-acting and slow-release plant essential oil

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preparation example Construction

[0026] Such as figure 1 Shown, a kind of preparation method of deodorant type long-acting slow-release plant essential oil polyurethane flexible foam, described preparation method comprises the following steps:

[0027] (1) The halloysite nanotubes are immersed in dilute hydrochloric acid with a mass fraction of 5 to 20% at a temperature of 25 to 80°C for 30 to 60 minutes, filtered, washed, and dried in sequence to obtain activated halloysite nanotubes 1 ;

[0028] (2) Under the protection of an inert gas, dissolve the cyclodextrin in the solvent according to the weight ratio of the cyclodextrin to the solvent 1:5 to 1:10 to obtain a cyclodextrin solution; then add the step ( 1) The obtained activated halloysite nanotubes, the weight ratio of activated halloysite nanotubes to cyclodextrin is 1:3~1:10, mix well to obtain solution a; then add isocyanate and cyclodextrin into solution a The weight ratio with isocyanate is 1:1~1:5, mix evenly to obtain solution b; heat solution ...

Embodiment 1

[0042] A kind of preparation method of deodorant type long-acting slow-release plant essential oil polyurethane soft foam, described preparation method comprises the following steps:

[0043] (1) Dip the halloysite nanotubes in dilute hydrochloric acid with a mass fraction of 20% at a temperature of 25° C. for 60 minutes, filter, wash, and dry in sequence to obtain activated halloysite nanotubes 1;

[0044] (2) Under nitrogen protection, according to the weight ratio of β-cyclodextrin and dimethyl sulfoxide 1:5, β-cyclodextrin was dissolved in dimethyl sulfoxide to obtain a β-cyclodextrin solution; Add the activated halloysite nanotube 1 obtained in step (1) to the β-cyclodextrin solution, the weight ratio of the activated halloysite nanotube to β-cyclodextrin is 1:10, and mix uniformly to obtain solution a; Add 2,4-toluene diisocyanate to solution a, the weight ratio of β-cyclodextrin to 2,4-toluene diisocyanate is 1:1, mix well to obtain solution b; heat solution b to a temp...

Embodiment 2

[0055] A kind of preparation method of deodorant type long-acting slow-release plant essential oil polyurethane soft foam, described preparation method comprises the following steps:

[0056] (1) Dip the halloysite nanotubes in dilute hydrochloric acid with a mass fraction of 5% at a temperature of 80° C. for 30 minutes, filter, wash, and dry in sequence to obtain activated halloysite nanotubes 1;

[0057] (2) Under the protection of argon, dissolve hydroxypropyl β-cyclodextrin in dimethyl sulfoxide according to the weight ratio of hydroxypropyl β-cyclodextrin and dimethyl sulfoxide 1:10 to obtain hydroxypropyl β-cyclodextrin Propyl β-cyclodextrin solution; then add the activated halloysite nanotube 1 obtained in step (1) to the hydroxypropyl β-cyclodextrin solution, activate the halloysite nanotube and hydroxypropyl β-cyclodextrin The weight ratio of essence is 1:3, mix well to get solution a; then add 4,4-diphenylmethane diisocyanate, hydroxypropyl β-cyclodextrin and 4,4-dip...

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Abstract

The invention discloses a preparation method of deodorizing type flexible polyurethane foam containing long-acting and slow-release plant essential oil. According to the method, firstly, a halloysite nanotube is activated, then a reticular structure is formed on the surface of the activated halloysite nanotube through a polymerization reaction of cyclodextrin and isocyanate, and the nanotube is loaded with the essential oil through impregnation; then solid plant essential oil is added to a polymerization reaction process of polyurethane foam, and an active group of a cyclodextrin molecule on the surface of the solid plant essential oil can participate in the polymerization reaction of the polyurethane foam, so that the solid plant essential oil is closely connected with the flexible polyurethane foam and cannot fall off easily.

Description

technical field [0001] The invention relates to a preparation method of an essential oil foam, in particular to a preparation method of a deodorizing long-acting slow-release plant essential oil polyurethane soft foam. Background technique [0002] Polyurethane flexible foam is the most widely used product in polyurethane products. The main uses of polyurethane flexible foam include the following aspects: First, cushion materials, such as seats, sofas, mattresses, etc., cushion materials are also the application fields with the largest amount of soft foam; second, fabric composite materials: shoulder pads, insoles, bras sponge etc. Considering that most of the applications of polyurethane flexible foam are related to the human body, the development of functional polyurethane flexible foam that is beneficial to the human body has become a hot spot in the industry. [0003] As a natural antibacterial agent with high efficiency, non-toxicity, high selectivity and less resista...

Claims

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Application Information

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IPC IPC(8): C08G18/64C08G18/61C08G18/76C08L75/04C08L91/00C08K7/26
CPCC08G18/61C08G18/6484C08G18/7671C08L75/04C08L2203/14C08G2110/0008C08L91/00C08K7/26
Inventor 许明洪蔡力锋
Owner 威海神舟信息技术研究院有限公司
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