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Application of Silane Coupling Agent as Flame Retardant in Flame Retardant Thermoplastics

A thermoplastic and silane coupling agent technology, applied in flame-retardant thermoplastic polyurethane elastomer, ethylene-vinyl acetate, polypropylene field, to achieve the effect of not easy migration, good compatibility and good dispersion

Active Publication Date: 2018-10-19
SHANDONG XINLONG PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, there is no report on adding silane coupling agent compounds to thermoplastics alone as a flame retardant for flame retardancy of thermoplastics.

Method used

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  • Application of Silane Coupling Agent as Flame Retardant in Flame Retardant Thermoplastics
  • Application of Silane Coupling Agent as Flame Retardant in Flame Retardant Thermoplastics
  • Application of Silane Coupling Agent as Flame Retardant in Flame Retardant Thermoplastics

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Silane coupling agent compounds were used as flame retardants to prepare flame retardant thermoplastic polyurethane elastomer composite material-1.

[0028] The silane coupling agent compound is silane coupling agent KH550.

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

[0030] 1) Preparation of a masterbatch, the masterbatch is composed of a thermoplastic polyurethane elastomer and a silane coupling agent KH550, in parts by weight, 90 parts of the thermoplastic polyurethane elastomer and 10 parts of a silane coupling agent KH550. Control the temperature of the internal mixer at 180°C and the rotational speed at 30 rpm, add thermoplastic polyurethane elastomer into the internal mixer, add a certain amount of silane coupling agent KH550 after it melts, and melt blend for 10 minutes. Obtain high-concentration flame-retardant TPU / silane coupling agent KH550 masterbatch, put it in a ziplock bag and seal i...

Embodiment 2

[0035] Silane coupling agent compounds were used as flame retardants to prepare flame retardant thermoplastic polyurethane elastomer composite material-2.

[0036] The silane coupling agent compound is silane coupling agent KH550.

[0037] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0038] 1) the preparation of masterbatch, with embodiment 1;

[0039]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.

[0040] 3) All the prepared samples were placed in a constant temperature and humidity test box (25° C., relative humidity 60%) for 72 hours before p...

Embodiment 3

[0043] Silane coupling agent compounds were used as flame retardants to prepare flame retardant thermoplastic polyurethane elastomer composite material-3.

[0044] The silane coupling agent compound is silane coupling agent KH550.

[0045] The preparation method of the flame-retardant thermoplastic polyurethane elastomer composite material is:

[0046] 1) the preparation of masterbatch, with embodiment 1;

[0047] 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.

[0048] 3) All the prepared samples were placed in a constant temperature and humidity test box (25° C., relative humidity 60%) for 72 ho...

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Abstract

The invention discloses an application of silane coupling agent compounds as fire retardants in flame-retardant thermoplastic plastics. The silane coupling agents as nano inorganic oxide precursors can be well dispersed in a polymer matrix, and are hydrolyzed in polymer molecular chain segments to generate nano inorganic oxides when meeting moisture in air, the nano inorganic oxides form an interpenetrating network structure with the polymer matrix, and compared with a mode of direct addition of oxide nanoparticles, the method of adding the inorganic oxide precursors has the advantage that agglomeration, migration and precipitation of the nanoparticles in the polymer matrix are effectively reduced. The flame-retardant thermoplastic plastics prepared by adopting the silane coupling agent compounds as the fire retardants have the advantages that the heat release rate, the total heat release, the smoke generation rate, the total smoke generation amount and smoke factors are remarkably reduced and the remaining 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 the application of silane coupling agent compounds as flame retardants in flame retardant thermoplastics, especially in flame retardant thermoplastic polyurethane elastomers, polypropylene, ethylene-vinyl acetate application in esters. 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 is violent an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L75/04C08L23/12C08L23/08C08K5/544
CPCC08L23/0853C08L23/12C08L75/04C08L2201/02C08L2205/025C08L2205/04C08L2207/04C08K5/544
Inventor 陈希磊马翠永焦传梅钱翌李少香
Owner SHANDONG XINLONG PIPE IND
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