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Application of aluminate substances to flame-retardant thermoplastic plastic as flame retardant

A technology of thermoplastics and aluminate, applied in polypropylene, flame-retardant thermoplastic polyurethane elastomers, and ethylene-vinyl acetate, to achieve good dispersion, good compatibility, and difficult migration effects

Active Publication Date: 2016-05-25
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, there is currently no report on the addition of aluminate compounds as flame retardants to thermoplastics for flame retardancy of thermoplastics.

Method used

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  • Application of aluminate substances to flame-retardant thermoplastic plastic as flame retardant
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  • Application of aluminate substances to flame-retardant thermoplastic plastic as flame retardant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Aluminate compound was used as flame retardant to prepare flame retardant thermoplastic polyurethane elastomer composite material-1.

[0028] The aluminate compound is aluminate coupling agent UP801.

[0029] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0030] 1) Preparation of masterbatch, the masterbatch is composed of thermoplastic polyurethane elastomer and aluminate coupling agent UP801, in parts by weight, 90 parts of the thermoplastic polyurethane elastomer, 110 parts of aluminate coupling agent UP801. Control the temperature of the internal mixer at 180°C and the rotational speed at 30 rpm, add the thermoplastic polyurethane elastomer into the internal mixer, wait for it to melt, add a certain amount of aluminate coupling agent UP801, and melt blend for 10 minutes. Obtain a high-concentration flame-retardant TPU / aluminate coupling agent UP801 masterbatch, and store it in a sealed bag.

[0031] 2) T...

Embodiment 2

[0035] Aluminate compound was used as flame retardant to prepare flame retardant thermoplastic polyurethane elastomer composite material-2.

[0036] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0037] 1) the preparation of masterbatch, with embodiment 1;

[0038] 2) Control the temperature of the internal mixer at 180°C, and the rotating speed is 30 rpm, and add thermoplastic polyurethane elastic with a mass percentage of 99.75 wt% into the internal mixer, and add a high concentration of 0.25 wt% after it is melted The flame-retardant thermoplastic polyurethane elastic masterbatch was melt-blended for 10 minutes, and the composite material was taken out and pressed into shape.

[0039] 3) All the prepared samples were placed in a constant temperature and humidity test box (25° C., relative humidity 60%) for 72 hours before performance testing.

[0040] To step 3) the flame-retardant composite material of gained i...

Embodiment 3

[0042]Aluminate compound was used as flame retardant to prepare flame retardant thermoplastic polyurethane elastomer composite material-3.

[0043] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0044] 1) the preparation of masterbatch, with embodiment 1;

[0045] 2) The temperature of the internal mixer is controlled at 180°C, the rotating speed is 30 rpm, and thermoplastic polyurethane elasticity with a mass percentage of 99.5 wt% is added to the internal mixer, and a high concentration of 0.5 wt% is added after it is melted The flame-retardant thermoplastic polyurethane elastic masterbatch was melt-blended for 10 minutes, and the composite material was taken out and pressed into shape.

[0046] 3) All the prepared samples were placed in a constant temperature and humidity test box (25° C., relative humidity 60%) for 72 hours before performance testing.

[0047] To step 3) the flame-retardant composite material o...

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Abstract

The invention discloses an application of aluminate substances to flame-retardant thermoplastic plastic as a flame retardant. An aluminate compound serving as a nano inorganic oxide precursor can be dispersed in a polymer substrate well and can be hydrated to generate nano inorganic oxide in a polymer molecule segment when encountering with moisture in air, so as to form an interpenetrating polymer network with the polymer substrate; compared with a case where nanoparticle oxide is added directly, a method of adding the inorganic oxide precursor effectively reduces agglomeration, migration and separation of nanoparticles in the polymer substrate. The flame-retardant thermoplastic which is prepared from the aluminate compound serving as the flame retardant is remarkably reduced in heat release rate, total heat release, smoke generation speed, total smoke generation amount and smoke factors, and the residual mass of carbon residues is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of modification of flame retardant thermoplastics, and relates to aluminate substances, that is, the application of aluminate substances as flame retardants in flame retardant thermoplastics, especially in flame retardant thermoplastic polyurethane elastomers, poly Applications in propylene, ethylene-vinyl acetate. Background technique [0002] Thermoplastic polyurethane elastomer (TPU) is one of the most commonly used plastics in the world. It has both 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, and are widely used in many fields of the national economy. However, due to its special structure, TPU is extremely easy to burn. When TPU burns, the flam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K5/10C08L75/04C08L23/12C08L23/08C08J3/22
CPCC08J3/223C08K5/10C08L23/0853C08L23/12C08L75/04C08J2375/04C08J2323/08C08J2323/12C08L2201/02C08K2201/011
Inventor 陈希磊马翠永焦传梅钱翌李少香
Owner QINGDAO UNIV OF SCI & TECH
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