Flame-retardant polyurethane elastomer material for furniture and preparation method thereof

A technology of polyurethane elastomer and flame retardancy, which is applied in the field of polyurethane materials, can solve the problems of large heat release, flammability, dripping and dripping, etc., and achieve the goal of improving flame retardancy, good flame retardancy, and reducing adverse effects Effect

Active Publication Date: 2018-05-11
DONGGUAN XIONGLIN NEW MATERIAL TECH
View PDF5 Cites 1 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flame-retardant polyurethane elastomer material for furniture and preparation method thereof
  • Flame-retardant polyurethane elastomer material for furniture and preparation method thereof
  • Flame-retardant polyurethane elastomer material for furniture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A flame-retardant polyurethane elastomer material for furniture, comprising the following raw material components in parts by mass:

[0044]

[0045] 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.

[0046] The preparation method of above-mentioned flame-retardant polyurethane elastomer material is as follows:

[0047] (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;

[0048] (2) centrifuging the mixed solution obtained in step (1), then washing and drying;

[0049] (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

[0051] A flame-retardant polyurethane elastomer material for furniture, comprising the following raw material components in parts by mass:

[0052]

[0053] 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.

[0054] The preparation method of above-mentioned flame-retardant polyurethane elastomer material is as follows:

[0055] (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;

[0056] (2) centrifuging the mixed solution obtained in step (1), then washing and drying;

[0057] (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

[0059] A flame-retardant polyurethane elastomer material for furniture, comprising the following raw material components in parts by mass:

[0060]

[0061]

[0062] 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.

[0063] The preparation method of above-mentioned flame-retardant polyurethane elastomer material is as follows:

[0064] (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;

[0065] (2) centrifuging the mixed solution obtained in step (1), then washing and drying;

[0066] (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 f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention provides a flame-retardant polyurethane elastomer material for furniture and a preparation method thereof. The flame-retardant polyurethane elastomer material is prepared from, by mass,100 parts of polyurethane elastomer, 1-3 parts of ionic liquid, 4-8 parts of boron ion exchanger, 15-30 parts of alumina sol and 5-15 parts of expandable graphite. The flame-retardant polyurethane elastomer material is prepared through the steps that the ionic liquid, the boron ion exchanger, the alumina sol and the expandable graphite are subjected to a mixed reaction, and obtained solid components and the polyurethane elastomer are subjected to melt blending. The flame-retardant polyurethane elastomer material has the high flame-retardant performance, in the use process, no small molecule flame retardant is dissolved out, the flame retardant property is effective in the long term, and the material is specially suitable for furniture such as sofa, mattress and seat 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap