Halogen-free phosphorus-based synergistic flame retardant and flame-retardant polymer composite material and preparation method thereof

A flame retardant polymer, synergistic flame retardant technology, applied in the field of flame retardants, can solve problems such as increasing the cost of final products, unfavorable industrial production, restricting the application of flame retardants, etc. The effect of flue gas generation

Active Publication Date: 2021-06-11
SHENYANG FIRE RES INST OF MEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The above-mentioned phosphorus-based polymer-based flame retardants have achieved good flame-retardant effects, but the limitation is that the synthesis process of the core flame-retardant polymer is usually complicated, which is not conducive to industrial production, greatly increases the cost of the final product, and limits these. Application of flame retardant

Method used

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  • Halogen-free phosphorus-based synergistic flame retardant and flame-retardant polymer composite material and preparation method thereof
  • Halogen-free phosphorus-based synergistic flame retardant and flame-retardant polymer composite material and preparation method thereof
  • Halogen-free phosphorus-based synergistic flame retardant and flame-retardant polymer composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0052] Halogen-free phosphorus-based synergistic flame retardant, the formula is PPEPAA1%, APP 50%, MPP 48%, molecular sieve 1%.

[0053] Flame retardant polymer composite material formula: 30% flame retardant, 0.3% antioxidant, 69.7% polypropylene;

[0054] The limiting oxygen index of the flame-retardant polymer composite material is 30.2%, the UL-94 vertical burning test reaches the V-1 level, the tensile strength is 21.71MPa, and the impact strength is 3.218KJ / m 2 , heat release rate 185.31W / g, total smoke production 8.05m 2 .

[0055] A method for preparing a halogen-free phosphorus-based synergistic flame retardant and a flame-retardant polymer material, the steps are as follows:

[0056] 1. The synthetic method of pentaerythritol phosphate acrylate (PEPAA)

[0057] Add cage pentaerythritol phosphate alcohol PEPA (54.0g, 0.3mol) to 200ml dichloromethane and stir, then add 42ml triethylamine, after the temperature drops to -10°C, add acryloyl chloride (27.2g, 0.3mol) i...

Embodiment 2

[0067] Halogen-free phosphorus-based synergistic flame retardant, the formula is PEPAA 2%, APP 55%, MPP 42%, molecular sieve 1%.

[0068] Flame retardant polymer material formula: 28% flame retardant, 0.3% antioxidant, 71.7% polypropylene.

[0069] The limiting oxygen index of the flame-retardant polymer composite material is 38.2%, the UL-94 vertical burning test reaches the V-0 level, the tensile strength is 26.52MPa, and the impact strength is 3.233KJ / m 2 , heat release rate 152.78W / g, total smoke production 7.05m 2 .

[0070] A method for preparing a halogen-free phosphorus-based synergistic flame retardant and a flame-retardant polymer material, the steps are as follows:

[0071] 1. The synthetic method of pentaerythritol phosphate acrylate (PEPAA)

[0072] Add cage pentaerythritol phosphate alcohol PEPA (54.0g, 0.3mol) to 200ml dichloromethane and stir, then add 42ml triethylamine, after the temperature drops to -10°C, add acryloyl chloride (27.2g, 0.3mol) in 200ml di...

Embodiment 3

[0078] Halogen-free phosphorus-based synergistic flame retardant, the formula is PPEPAA 5%, APP 60%, MPP 34%, molecular sieve 1%.

[0079] Flame retardant polymer material formula: 25% flame retardant, 0.3% antioxidant, 74.7% polypropylene

[0080] The limiting oxygen index of the flame-retardant polymer composite material is 43.6%, the UL-94 vertical combustion test reaches the V-0 level, the tensile strength is 29.36MPa, and the impact strength is 3.317KJ / m 2, heat release rate 138.62W / g, total smoke production 5.21m 2 . The flame retardant polypropylene material heat release rate figure of embodiment 3 is as follows image 3 shown.

[0081] The preparation method of the halogen-free phosphorus-based synergistic flame retardant and the flame-retardant polymer material is the same as in Example 1.

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Abstract

Halogen-free phosphorus-based synergistic flame retardant and flame-retardant polymer composite material and preparation method thereof. The composition of the halogen-free phosphorus-based synergistic flame retardant is by mass percentage, PPEPAA: 1-95%, APP: 0-90%, MPP: 0-90%, molecular sieve: 0-25%. Preparation method: including self-polymerization-blending route and in-situ polymerization route. The flame-retardant polymer composite material, its composition by mass percentage, halogen-free phosphorus-based synergistic flame retardant: 20-50%, polymer material: 50-79.7%, antioxidant: 0-0.3%. The flame-retardant polymer composite material has a limiting oxygen index of 28-46.7%, and a UL-94 vertical combustion test of V-1 or above. The heat release rate (HRR) and total smoke generation (TSR) are higher than those of the matrix polymer material. Decreased by 22-84.0% and 12.1-43.02%.

Description

technical field [0001] The invention belongs to the technical field of flame retardants, and in particular relates to a halogen-free phosphorus-based synergistic flame retardant and a flame-retardant polymer composite material and a preparation method thereof. Background technique [0002] With the development and progress of the economy, more and more polymer materials have entered people's production and life, and they can be seen everywhere for basic necessities of life. However, the limiting oxygen index of most polymer materials is lower than 21%, which belongs to flammable materials. In 2015, the national public security and fire departments received a total of 347,000 fire reports, with 1,899 deaths, 1,213 injuries, and direct property losses of 4.36 billion yuan (Fire Bureau, Ministry of Public Security. China Fire Yearbook. 2016[M]. Kunming: Yunnan Publishing Group, 2016,03-04.), many of which involve polymer materials. Once the polymer material is burned, it is n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L77/02C08L9/06C08L25/06C08L43/02C08K3/32C08K5/3492C08K7/24
CPCC08K3/32C08K5/34928C08K7/24C08K2003/323C08L9/06C08L23/12C08L25/06C08L43/02C08L77/02C08L2201/02
Inventor 王柏刘术军
Owner SHENYANG FIRE RES INST OF MEM
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