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Preparation method of deodorization type slow-release essential oil high-buffer and slow-rebound polyurethane soft foam

A soft foam and deodorizing technology, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve problems such as no deodorization performance, reduce non-penetrating damage, good absorption, and not easy to fall off Effect

Inactive Publication Date: 2018-05-01
FUJIAN YUETE NEW MATERIAL TECH
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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 performance to polyurethane flexible foam products, and there is no application of cyclodextrin to make deodorant long-term slow-release plant essential oils High cushioning and slow rebound polyurethane Reports on flexible foams having deodorizing properties, etc.

Method used

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  • Preparation method of deodorization type slow-release essential oil high-buffer and slow-rebound polyurethane soft foam
  • Preparation method of deodorization type slow-release essential oil high-buffer and slow-rebound polyurethane soft foam
  • Preparation method of deodorization type slow-release essential oil high-buffer and slow-rebound polyurethane soft foam

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preparation example Construction

[0027] Such as figure 1 Shown, a kind of preparation method of deodorant type sustained-release essential oil high cushioning slow rebound polyurethane soft foam, it comprises following specific steps:

[0028] (1) Take halloysite nanotubes and soak them in dilute hydrochloric acid with a mass fraction of 5-20% at a temperature of 25-80°C for 30-60 minutes, then take them out for filtration, washing, After drying, the activated halloysite nanotubes are obtained;

[0029] (2) Take the cyclodextrin and under the protection of protective gas, dissolve the cyclodextrin in the solvent according to the weight ratio of the cyclodextrin to the solvent is 1:5-10 to obtain a cyclodextrin solution, and then press the activated angstrom The weight ratio of halloysite nanotubes to cyclodextrin is 1:3-10. The activated halloysite nanotubes prepared in step (1) are added to the cyclodextrin solution and mixed uniformly to obtain solution a, and then press the cyclodextrin The weight ratio ...

Embodiment 1

[0043] A kind of preparation method of deodorant type sustained-release essential oil high cushioning slow rebound polyurethane soft foam, it comprises the following steps:

[0044] (1) Immerse 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;

[0045] (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 temperatur...

Embodiment 2

[0057] A kind of preparation method of deodorant type sustained-release essential oil high cushioning slow rebound polyurethane soft foam, described preparation method comprises the following steps:

[0058] (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;

[0059] (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-cyclodex...

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Abstract

The invention discloses a preparation method of deodorization type slow-release essential oil high-buffer and slow-rebound polyurethane soft foam. The high-buffer and slow-rebound polyurethane flexible foam is obtained by effectively utilizing a polyurethane flexible foam formula modification technology; meanwhile, firstly, halloysite nanotubes are activated; then, a net-shaped structure is formedon the surfaces of the activated halloysite nanotubes through polymerization reaction between cyclodextrin and isocyanate; then essential oil is loaded into the nanotubes through soaking. Then the solid plant essential oil is added into a polymerization reaction process of polyurethane foam and an active group on 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 and the polyurethane soft foam are tightly connected and do not easily fall off.

Description

technical field [0001] The invention relates to the field of preparation of high-buffering and slow-rebound polyurethane soft foam, in particular to a preparation method of deodorizing slow-release essential oil high-buffering and slow-rebound polyurethane soft foam. Background technique [0002] Slow rebound polyurethane soft foam refers to the foam that is deformed by external force, the foam does not immediately restore its original shape like the previous sponge, but slowly restores its original shape without residual deformation; it is also called "memory foam" . Because of its excellent "memory" effect, cushioning, sound insulation, sealing, and small compression residual deformation and other advantages and properties; it has become the largest type of polyurethane product in polyurethane products. The main uses of polyurethane soft foam include the following aspects: First, cushion materials, such as seats, sofas, mattresses, etc. Polyurethane soft foam is a very id...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/40C08G18/48C08G18/64C08K9/02C08K7/00C08K3/34C08J9/08B01J20/26B01J20/30B01D53/02C08G101/00
CPCB01D53/02B01D2257/90B01J20/12B01J20/24B01J20/262C08G18/4081C08G18/48C08G18/6484C08K3/34C08K7/00C08K9/02C08K2201/011C08G2110/0083
Inventor 林顺寅邹如珍许明洪方凯育
Owner FUJIAN YUETE NEW MATERIAL TECH
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