Ionic polyurethane hot melt adhesive foam product and preparation method thereof

A polyurethane hot melt adhesive and ionic technology, applied in the direction of polyurea/polyurethane adhesives, adhesives, adhesive types, etc., can solve problems such as uneven foam, achieve uniform mixing, uniform structure, and improve uniformity Effect

Active Publication Date: 2020-08-14
MIRACLL CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a kind of ionic polyurethane hot-melt adhesive foam product and its preparation method in order to solve the technical problem of the foam unevenness of the foamed product in the above-mentioned background technology

Method used

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  • Ionic polyurethane hot melt adhesive foam product and preparation method thereof

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Effect test

Embodiment 1

[0038] A kind of preparation method of ionic polyurethane hot-melt adhesive foam product, comprises the following steps:

[0039] 1. Preparation of moisture-cured polyurethane hot melt adhesive

[0040] S1, 100g of polytetrahydrofuran polyether polyol with a molecular weight of 1800mol / L and a functionality of 2, 0.03g of phosphoric acid, 0.3g of antioxidant Irganox1010 (purchased from BASF), 0.3g of light stabilizer Tinuvin 770 (purchased from BASF), 0.5g of anti-ultraviolet additive Tinuvin327 (purchased from BASF) and 0.5g antifungal agent AM110 (purchased from Huntsman) were added to the reactor and melted at 120°C Mix and stir while vacuumizing and dehydrating for 2 hours under the condition of vacuum degree of -0.09MPa to obtain the mixed material;

[0041] S2. Cool the mixed material in step S1 to 60°C, then add 27.8g of diphenylmethane-4,4'-diisocyanate (MDI) and stir, react at 60°C under normal pressure for 15min, then raise the temperature To 110°C, vacuum negative...

Embodiment 2

[0048] A kind of preparation method of ionic polyurethane hot-melt adhesive foam product, comprises the following steps:

[0049] 1. Preparation of moisture-cured polyurethane hot melt adhesive

[0050] S1, 60g of polytetrahydrofuran polyol with a molecular weight of 2000mol / L and a functionality of 2, 40g of polybutylene adipate with a molecular weight of 2000mol / L and a functionality of 2, 0.03g of phosphoric acid, and 0.3g of Antioxidant Irganox1010 (purchased from BASF company), 0.3g light stabilizer Tinuvin 770 (purchased from BASF company), 0.5g UV-resistant auxiliary agent Tinuvin327 (purchased from BASF company) and 0.5g antifungal agent AM110 (purchased from BASF company) (purchased from Huntsman Company) was added into the reaction kettle, melted, mixed and stirred at 120°C and simultaneously vacuumed and dehydrated for 2 hours under the condition of vacuum degree of -0.09MPa to obtain the mixed material;

[0051] S2. Cool the mixed material in step S1 to 60°C, then...

Embodiment 3

[0058] A kind of preparation method of ionic polyurethane hot-melt adhesive foam product, comprises the following steps:

[0059] 1. Preparation of moisture-cured polyurethane hot melt adhesive

[0060] S1, the molecular weight of 100g is 1000mol / L, the polytetrahydrofuran polyol of 2 functionalities, 0.03g phosphoric acid, the antioxidant Irganox1010 of 0.3g (purchased from BASF company), the light stabilizer Tinuvin 770 of 0.3g ( (purchased from BASF Company), 0.5g of anti-ultraviolet additive Tinuvin327 (purchased from BASF Company) and 0.5g antifungal agent AM110 (purchased from Huntsman Co.) were added to the reactor, melted and mixed at 120°C and stirred At the same time, the mixed material was obtained after vacuum dehydration for 2 hours under the condition of vacuum degree of -0.09MPa;

[0061] S2. Cool the mixed material in step S1 to 60°C, then add 45g of diphenylmethane-4,4'-diisocyanate (MDI) and stir, react at 60°C under normal pressure for 15min, then raise the...

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Abstract

The invention belongs to the field of polymer foaming materials, and particularly relates to an ionic polyurethane hot melt adhesive foam product and a preparation method thereof. The ionic polyurethane hot melt adhesive foam product comprises a moisture cured polyurethane hot melt adhesive, an ionic polyurethane hot melt adhesive and water. The preparation method comprises the following steps: carrying out grafting reaction on an anionic surfactant containing active hydrogen and a polyurethane hot melt adhesive to prepare an ionic polymer containing an NCO active group, adding water at 35-95DEG C, and carrying out foaming reaction to prepare an ionic polyurethane foam product. Compared with the traditional polyurethane foam product, the cost is low. Due to grafting introduction of the anionic surfactant, after water is added, the hydrophilicity of a polymer system is improved, a certain self-emulsifying effect is achieved, the foam stability is improved, the foam combining probability is reduced, foam holes are more compact and uniform, and meanwhile the characteristics of low compression deformation, high resilience, excellent mechanical strength and the like are achieved.

Description

technical field [0001] The invention belongs to the field of polymer foaming materials, and in particular relates to an ionic polyurethane hot-melt adhesive foam product and a preparation method thereof. Background technique [0002] At present, most of the foamed plastics are based on plastic, and a large number of air bubbles are obtained inside the plastic matrix by adding physical or chemical foaming agents. Foamed plastic materials are widely used in the fields of daily necessities, shoe materials, sporting goods, packaging, construction and automobiles due to their light specific gravity, heat insulation, shock absorption and sound absorption. [0003] The more excellent technology in the prior art is to directly react and foam the polymer containing NCO active groups with water, so that the content of allophanate groups in the prepared polyurethane foam products is relatively high, and the allophanate groups Compared with traditional polyurethane foam products, the u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/08C09J175/06C08G18/83C08J9/08C08G101/00
CPCC08G18/831C08G18/833C08G18/836C09J175/06C09J175/08C08G2110/0083
Inventor 周娅高玉宝宋红玮王仁鸿段立金
Owner MIRACLL CHEM
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