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Application of Titanates as Flame Retardants in Flame Retardant Thermoplastics

A technology of thermoplastics and titanates, applied in ethylene-vinyl acetate, in the field of flame-retardant thermoplastic polyurethane elastomers and polypropylene, to achieve good dispersion and non-migratory effects

Active Publication Date: 2018-03-02
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In summary, there is no report on the addition of titanate compounds as flame retardants to thermoplastics as a flame retardant for thermoplastics.

Method used

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  • Application of Titanates as Flame Retardants in Flame Retardant Thermoplastics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Titanate compounds were used as flame retardants to prepare flame retardant thermoplastic polyurethane elastomer composite material-1.

[0067] The titanate compound is n-butyl titanate.

[0068] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0069] 1) Preparation of masterbatch. The masterbatch is composed of thermoplastic polyurethane elastomer and n-butyl titanate. In parts by weight, the thermoplastic polyurethane elastomer is 90 parts, and n-butyl titanate is 10 parts. The temperature of the internal mixer was controlled at 180°C, and the rotational speed was 30 rpm. The thermoplastic polyurethane elastomer was added into the internal mixer, and after it was melted, a certain amount of n-butyl titanate was added, and melt blended for 10 minutes. The high-concentration flame-retardant TPU / n-butyl titanate masterbatch is obtained and stored in a sealed bag.

[0070] 2) The temperature of the internal mixe...

Embodiment 2

[0076] Titanate compounds were used as flame retardants to prepare flame retardant thermoplastic polyurethane elastomer composite material-2.

[0077] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0078] 1) the preparation of masterbatch, with embodiment 1;

[0079] 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 97.5 wt% is added to the internal mixer, and a high concentration of 2.5 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.

[0080] 3) The obtained material is placed in a constant temperature and humidity test box (25°C, 60% relative humidity) for 72 hours before performance testing.

[0081] To step 3) the flame-retardant composite material of ga...

Embodiment 3

[0083] Titanate compounds were used as flame retardants to prepare flame-retardant thermoplastic polyurethane elastomer composite-3.

[0084] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0085] 1) the preparation of masterbatch, with embodiment 1;

[0086] 2) The temperature of the internal mixer is controlled at 180° C., the rotating speed is 30 rpm, and thermoplastic polyurethane elasticity of 95 wt % is added to the internal mixer, and a high concentration of 5 wt % is added to the internal mixer after it is melted. Burn the thermoplastic polyurethane elastic masterbatch, melt and blend for 10 minutes, take out the composite material and press it into shape.

[0087] 3) The obtained material is placed in a constant temperature and humidity test box (25°C, 60% relative humidity) for 72 hours before performance testing.

[0088] To step 3) the flame-retardant composite material of gained is pressed into 100 * 10...

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Abstract

The invention discloses an application of titanate substances to flame-retardant thermoplastic plastic as a flame retardant. A titanate substance 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 titanate 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 titanate substances, that is, the application of titanate compounds 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 flame i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/10C08L75/04C08L23/12C08L23/08C08J3/22
CPCC08J3/223C08J2323/08C08J2323/12C08J2375/04C08K5/10C08K2201/011C08L23/0853C08L23/12C08L75/04C08L2201/02
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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