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A kind of flame retardant polyurethane elastomer material for furniture and preparation method thereof

A polyurethane elastomer, flame retardant technology, applied in the field of polyurethane materials, can solve the problems of large heat release, easy combustion, dripping dripping, etc., to improve flame retardant performance, good flame retardant performance, and reduce adverse effects. Effect

Active Publication Date: 2021-02-05
DONGGUAN XIONGLIN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the application of TPU also has limitations, and it is extremely easy to burn. When TPU burns, the flame is violent and accompanied by thick black smoke, the heat release is large, and it has serious droplet dripping phenomenon, so its direct application has great limitations. , so the research on flame-retardant polyurethane elastomer materials has always been a hot spot in the research of polyurethane materials.
[0003] The traditional flame retardant method is to introduce highly efficient flame retardant halogen elements into the material, but the material will release a large amount of toxic and harmful gases when burned, causing great secondary harm to the human body and the environment
CN105440652A discloses a flame-retardant thermoplastic polyurethane elastomer and a preparation method thereof. The polyurethane elastomer is flame-retardantly modified by using an ionic liquid and an intumescent flame retardant (aluminum hypophosphite, ammonium polyphosphate, etc.), but the ionic liquid is small Molecule, and it is liquid at room temperature, it is easy to migrate and precipitate from the substrate, resulting in the loss of flame retardancy of the material
Moreover, the amount of intumescent flame retardant used is relatively high, which has a negative impact on the mechanical properties of the material.

Method used

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  • A kind of flame retardant polyurethane elastomer material for furniture and preparation method thereof
  • A kind of flame retardant polyurethane elastomer material for furniture and preparation method thereof
  • A kind of flame retardant polyurethane elastomer material for furniture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A flame-retardant polyurethane elastomer material for furniture, comprising the following raw material components in parts by mass:

[0043]

[0044] Wherein, the ionic liquid is 1-ethyl-3-methylimidazolium hexafluorophosphate, the boron ion exchanger is boric acid, the concentration of aluminum sol is 20wt%, and the particle diameter of expandable graphite is 500nm.

[0045] The preparation method of above-mentioned flame-retardant polyurethane elastomer material is as follows:

[0046] (1) According to the formula, mix the ionic liquid, boron-based ion exchanger, aluminum sol and expandable graphite at a stirring rate of 300r / min for 24h, adjust the pH to 7.5, and react at 100°C for 3h;

[0047] (2) centrifuging the mixed solution obtained in step (1), then washing and drying;

[0048] (3) Add the solid content obtained in step (2) and the polyurethane elastomer into an internal mixer, and melt and blend at 150° C. for 30 minutes to obtain the above-mentioned flam...

Embodiment 2

[0050] A flame-retardant polyurethane elastomer material for furniture, comprising the following raw material components in parts by mass:

[0051]

[0052] Wherein, the ionic liquid is 1-ethyl-3-methylimidazolium tetrafluoroborate, the boron ion exchanger is sodium metaborate, the concentration of aluminum sol is 30wt%, and the particle size of expandable graphite is 10 μm.

[0053] The preparation method of above-mentioned flame-retardant polyurethane elastomer material is as follows:

[0054] (1) According to the formula, mix the ionic liquid, boron-based ion exchanger, aluminum sol and expandable graphite at a stirring rate of 500r / min for 12h, adjust the pH to 9, and react at 80°C for 6h;

[0055] (2) centrifuging the mixed solution obtained in step (1), then washing and drying;

[0056] (3) Add the solid content obtained in step (2) and the polyurethane elastomer into an internal mixer, and melt and blend at 180° C. for 15 minutes to obtain the above-mentioned flame-...

Embodiment 3

[0058] A flame-retardant polyurethane elastomer material for furniture, comprising the following raw material components in parts by mass:

[0059]

[0060] Wherein, the ionic liquid is 1-methyl-3-ethylimidazole chloride, the boron ion exchanger is sodium metaborate, the concentration of aluminum sol is 28wt%, and the particle diameter of expandable graphite is 800nm.

[0061] The preparation method of above-mentioned flame-retardant polyurethane elastomer material is as follows:

[0062] (1) According to the formula, mix the ionic liquid, boron-based ion exchanger, aluminum sol and expandable graphite at a stirring rate of 350r / min for 20h, adjust the pH to 8, and react at 90°C for 4h;

[0063] (2) centrifuging the mixed solution obtained in step (1), then washing and drying;

[0064] (3) Add the solid content obtained in step (2) and the polyurethane elastomer into an internal mixer, and melt and blend at 170° C. for 20 minutes to obtain the above-mentioned flame-retarda...

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Abstract

The invention provides a flame-retardant polyurethane elastomer material for furniture and a preparation method thereof. The flame-retardant polyurethane elastomer material includes the following raw material components in parts by mass: 100 parts of polyurethane elastomer, 1-3 parts of ionic liquid, 4-8 parts of boron ion exchanger, 15-30 parts of aluminum sol and 5 parts ‑15 parts expandable graphite. The flame-retardant polyurethane elastomer material is prepared by first mixing and reacting ionic liquid, boron ion exchanger, aluminum sol and expandable graphite, and then melting and blending the obtained solid component with polyurethane elastomer. The flame-retardant polyurethane elastomer material provided by the present invention has high flame-retardant performance, no small-molecule flame-retardant is precipitated during use, and the flame-retardant performance is effective for a long time. It is especially suitable for furniture such as sofas, mattresses, and chair armrests. .

Description

technical field [0001] The invention belongs to the technical field of polyurethane materials, and in particular relates to a flame-retardant polyurethane elastomer material for furniture and a preparation method thereof. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) is one of the plastics commonly used in daily life. Its characteristics combine the processing performance of plastics and the physical and mechanical properties of rubber. It has high elasticity, high strength, high wear resistance, radiation resistance, Mechanical properties such as oil resistance, low temperature brittleness resistance and hardness can be adjusted in a wide range. However, the application of TPU also has limitations, and it is extremely easy to burn. When TPU burns, the flame is violent and accompanied by thick black smoke, the heat release is large, and it has serious droplet dripping phenomenon, so its direct application has great limitations. , so the research o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08K13/04C08K7/24C08K3/38C08K5/3472C08K5/43
CPCC08K3/38C08K5/3472C08K5/43C08K7/24C08K13/04C08K2201/003C08K2201/011C08K2201/014C08L2201/02C08L75/04
Inventor 何建雄王一良杨博
Owner DONGGUAN XIONGLIN NEW MATERIAL TECH
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