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Low-smoke environment-friendly type antimony system compound flame retardant and preparation method thereof

A compound flame retardant, environment-friendly technology, which is applied in the field of low-smoke and environment-friendly antimony compound flame retardant and its preparation, can solve the problems of smoldering and large smoke generation, and achieve the reduction of surface charge and surface Tension, improve dispersion, improve the effect of flame retardancy

Inactive Publication Date: 2016-02-10
广西华锑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the shortcomings of the existing halogen-antimony flame retardant technology, that is, when added to polymer materials, harmful gases such as polybrominated benzooxins and polybrominated dibenzofurans will be produced when burned, and To provide a low-smoke and environment-friendly antimony-based compound flame retardant due to the disadvantages of large amount of smoke and smoldering

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Weigh raw materials: 50 kg of antimony trioxide (main content over 99.6%, particle size 1.0 μm), 15 kg of sodium antimonate, 20 kg of zinc hydroxystannate, 8 kg of titanate coupling agent.

[0029] The method for preparing low-smoke and environment-friendly antimony compound flame retardant of the present invention comprises the following steps:

[0030] (1) Surface modification of antimony trioxide: use one or more of titanate, aluminate, and silane to modify the surface of antimony trioxide. The modification temperature is 100°C, the stirring rate is 2000rpm, and the stirring time is 4.5 hours;

[0031] (2) Mixing of raw materials: place modified antimony trioxide, sodium antimonate, and zinc hydroxystannate in a frequency conversion mixer for low-speed and high-speed two-stage uniform mixing. The stirring speed of low-speed mixing is 1200rpm, and the mixing time is 5min. Temperature; the stirring speed of high-speed mixing is 5000rpm, the temperature is controlled a...

Embodiment 2

[0035] Weigh raw materials: 30 kg of antimony trioxide (main content over 99.6%, particle size 1.0 μm), 40 kg of sodium antimonate, 10 kg of zinc hydroxystannate, 3 kg of titanate coupling agent.

[0036] The method for preparing low-smoke and environment-friendly antimony compound flame retardant of the present invention comprises the following steps:

[0037] (1) Surface modification of antimony trioxide: use one or more of titanate, aluminate, and silane to modify the surface of antimony trioxide. The modification temperature is 140°C, the stirring rate is 4000rpm, and the stirring time is 3.5 hours;

[0038] (2) Mixing of raw materials: place modified antimony trioxide, sodium antimonate, and zinc hydroxystannate in a frequency conversion mixer for low-speed and high-speed two-stage uniform mixing. The stirring speed of low-speed mixing is 600rpm, and the mixing time is 10min. Temperature; the stirring speed of high-speed mixing is 2000rpm, the temperature is controlled a...

Embodiment 3

[0042] Weigh raw materials: 40 kg of antimony trioxide (main content over 99.6%, particle size 1.0 μm), 27.5 kg of sodium antimonate, 15 kg of zinc hydroxystannate, 5 kg of titanate coupling agent.

[0043] The method for preparing low-smoke and environment-friendly antimony compound flame retardant of the present invention comprises the following steps:

[0044] (1) Surface modification of antimony trioxide: use one or more of titanate, aluminate, and silane to modify the surface of antimony trioxide. The modification temperature is 120°C, the stirring rate is 3000rpm, and the stirring time is 4h;

[0045] (2) Mixing of raw materials: place modified antimony trioxide, sodium antimonate, and zinc hydroxystannate in a frequency conversion mixer for low-speed and high-speed two-stage uniform mixing. The stirring speed of low-speed mixing is 800rpm, and the mixing time is 7.5min. Temperature control; the stirring speed of high-speed mixing is 3500rpm, the temperature is controlled...

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Abstract

The invention discloses a low-smoke environment-friendly type antimony system compound flame retardant and a preparation method thereof. The flame retardant is prepared from, by weight, 30-50 parts of antimonous oxide, 15-40 parts of sodium antimonite, 10-20 parts of zinc hydroxystannate and 3-8 parts of a coupling agent. The preparation method of the flame retardant includes the steps that the antimonous oxide, the sodium antimonite, the zinc hydroxystannate and the coupling agent are weighed in proportion and subjected to screening in a vibration centrifugation mode after being evenly mixed in a low-speed mixing mode and a high-speed mixing mode, the screened powder is subjected to waterproof packaging, and the low-smoke environment-friendly type antimony system compound flame retardant is obtained. According to the low-smoke environment-friendly type antimony system compound flame retardant and the preparation method thereof, halogen-free environment-friendly flame retardants including the antimonous oxide, the sodium antimonite, the zinc hydroxystannate and the like are adopted as compound raw materials, the advantages of the antimonous oxide, the sodium antimonite and the zinc hydroxystannate are combined, the limit oxygen index of the compound flame retardant is raised, and the environment-friendly property of the compound flame retardant is improved; meanwhile, zinc, tin and other elements are introduced, and generation of toxic and harmful gas is effectively inhibited.

Description

【Technical field】 [0001] The invention belongs to the technical field of new materials, and in particular relates to a low-smoke and environment-friendly antimony compound flame retardant and a preparation method thereof. 【Background technique】 [0002] In a fire, smoke is the first and most lethal factor. According to expert statistics, more than 80% of the people who died from fire accidents in the world were suffocated by the smoke and toxic gases released by the burning of polymer materials, not by open flames. When polymer materials are burned, more smoke and toxic gases are produced. This kind of smoke gas is the most dangerous factor in fires, because their diffusion speed is much faster than that of flames, which hinders people's evacuation and extinguishing work in a fire. , resulting in serious loss of life and property. Therefore, in the field of flame retardant research, flame retardant and smoke suppression are two eternal topics. [0003] As an important fla...

Claims

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Application Information

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IPC IPC(8): C08K9/10C08K9/04C08K9/06C08K3/22C08K3/24C08L23/06
Inventor 王涛戴新梁小良韦华马柳军
Owner 广西华锑科技有限公司
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