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Preparation method of high-damping and high-strength polyurethane foam

A polyurethane foam and high-strength technology, applied in the field of foam manufacturing, can solve the problems of poor anti-seismic effect, low damping coefficient, and low mechanical strength, and achieve the effect of enhancing thermal insulation effect, high damping coefficient, and improving mechanical properties

Inactive Publication Date: 2018-12-18
德清舒华泡沫座椅有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to overcome the defects of low mechanical strength, low damping coefficient and poor anti-seismic effect of the foam material in the prior art, and provides a foam material that can effectively improve the mechanical properties, high damping coefficient and good Preparation method of a high-damping high-strength polyurethane foam for shock resistance

Method used

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  • Preparation method of high-damping and high-strength polyurethane foam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A kind of preparation method of high damping high strength polyurethane foam, described preparation method comprises the following steps:

[0039] (1) Preparation of filler:

[0040] (a) Precursor preparation: add 10 parts of magnesium chloride, 10 parts of boric acid, 5 parts of water and 0.5 parts of polyvinylpyrrolidone into the reaction kettle according to the parts by weight and stir to form a slurry, then add titanium tetrachloride dropwise 3 parts, stirred and reacted at 45°C for 1 to 5 hours, and dried into a block precursor after the stirred reaction;

[0041] (b) High-temperature sintering: Add 1 part of potassium chloride to the precursor obtained in step (a), and then raise the temperature to 650°C. After 4 hours of high-temperature solid-state reaction, gradually increase the temperature at a rate of 2°C / min. High temperature to 900°C, heat preservation for 3 hours to obtain boron titanium magnesium crystal block;

[0042] (c) Separation: Under the action...

Embodiment 2

[0049] A kind of preparation method of high damping high strength polyurethane foam, described preparation method comprises the following steps:

[0050] (1) Preparation of filler:

[0051] (a) Precursor preparation: Add 10 parts of magnesium chloride, 12 parts of boric acid, 5 parts of water and 1 part of polyvinylpyrrolidone into the reaction kettle according to parts by weight and stir to form a slurry, then add titanium tetrachloride dropwise 5 parts, stirred and reacted at 75°C for 2 hours, and dried into a block precursor after the stirred reaction;

[0052] (b) High-temperature sintering: Add 2 parts of potassium chloride to the precursor obtained in step (a), and then raise the temperature to 650°C. After 5 hours of high-temperature solid-state reaction, gradually increase the temperature at a rate of 3°C / min High temperature to 900°C, heat preservation for 4 hours to obtain boron titanium magnesium crystal block;

[0053] (c) Separation: Under the action of ultrasou...

Embodiment 3

[0060] A kind of preparation method of high damping high strength polyurethane foam, described preparation method comprises the following steps:

[0061] (1) Preparation of filler:

[0062] (a) Precursor preparation: add 10 parts of magnesium chloride, 15 parts of boric acid, 5 parts of water and 1.5 parts of polyvinylpyrrolidone into the reaction kettle according to parts by weight and stir to form a slurry, then add titanium tetrachloride dropwise 5 parts, stirred and reacted at 70°C for 3 hours, and dried into a block precursor after the stirred reaction;

[0063] (b) High-temperature sintering: Add 3 parts of potassium chloride to the precursor obtained in step (a), and then raise the temperature to 650°C. After 6 hours of high-temperature solid-state reaction, gradually increase the temperature at a rate of 4°C / min High temperature to 900°C, heat preservation for 4 hours to obtain boron titanium magnesium crystal block;

[0064] (c) Separation: The boron, titanium and m...

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Abstract

The invention relates to the field of foam manufacturing, and especially relates to a preparation method of high-damping and high-strength polyurethane foam. The preparation method comprises the following steps: (1) preparation of a filler; (2) compounding; and (3) foaming: (3.1) pre-mixing, (3.2) pre-foaming, (3.3) post-curing to obtain the high-damping and high-strength polyurethane foam. The high-damping and high-strength polyurethane foam has the following advantages: (1) the mechanical properties of the polyurethane foam are effectively improved; (2) the polyurethane foam has a high damping coefficient, so the polyurethane foam has good shock absorbing and buffering effects; and (3) the polyurethane foam has a superhydrophobic property, so the polyurethane foam has strong stain resistance.

Description

technical field [0001] The invention relates to the field of foam manufacture, in particular to a preparation method of high-damping and high-strength polyurethane foam. Background technique [0002] Polyurethane foam is made of isocyanate and hydroxyl compound through polymerization and foaming. According to its hardness, it can be divided into two types: soft and hard, of which soft is the main variety. Generally speaking, it has excellent elasticity, softness, elongation and compressive strength; good chemical stability, resistance to many solvents and oils; excellent abrasion resistance, 20 times larger than natural sponge; and excellent processing It is a kind of cushioning material with excellent performance, such as thermal insulation, adhesiveness and so on. [0003] According to the survey, my country's polyurethane foam industry has developed rapidly, especially in market development. The rapid development of domestic refrigeration and heat preservation, building...

Claims

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Application Information

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IPC IPC(8): C08G18/66C08G18/61C08G18/48C08G18/42C08G18/32C08K7/08C08K3/32C08J9/12C08G101/00
CPCC08G18/3228C08G18/4018C08G18/42C08G18/4825C08G18/4833C08G18/61C08G18/6618C08J9/125C08J2375/06C08J2375/08C08K3/32C08K7/08C08K2003/323C08G2110/0083
Inventor 卢伟蔡盼盼
Owner 德清舒华泡沫座椅有限公司