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Nitrogen and phosphorus halogen ternary flame retardant, preparation method of flame retardant and flame retardant material for preparing flame retardant

A technology of flame retardant materials and flame retardants, applied in the field of materials, can solve problems such as high phosphorus content and harsh reaction conditions, and achieve the effects of high yield, easy availability of raw materials, and good flame retardant performance

Active Publication Date: 2014-11-12
成都利亨聚氨酯新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem of excessive phosphorus content or harsh reaction conditions in existing flame retardants, and provide a class of nitrogen, phosphorus and halogen three-series flame retardants, their preparation methods and prepared flame retardant materials to change At present, there are more binary flame retardants and less ternary flame retardants

Method used

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  • Nitrogen and phosphorus halogen ternary flame retardant, preparation method of flame retardant and flame retardant material for preparing flame retardant
  • Nitrogen and phosphorus halogen ternary flame retardant, preparation method of flame retardant and flame retardant material for preparing flame retardant
  • Nitrogen and phosphorus halogen ternary flame retardant, preparation method of flame retardant and flame retardant material for preparing flame retardant

Examples

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Effect test

Embodiment 1

[0045] This example is the effect of the addition amount of O, O'-di(p-bromophenyl)diethylammonium dithiophosphate in PP on the limiting oxygen index.

[0046] In this example, O, O'-di(p-bromophenyl)diethylammonium dithiophosphate, substrate PP and lubricant (CaCO 3 etc.) (0.5%-2%, mass fraction, the same below) when the total mass is constant, the composition of each formula is shown in Table 1, so that O,O'-di(p-bromophenyl)dithiophosphoric acid The mass fraction of diethylammonium is 10-40%. Diethylammonium O, O'-bis(p-bromophenyl)dithiophosphate and the substrate PP plastic are weighed according to the set ratio and mixed evenly.

[0047] The uniformly mixed raw materials are melted, blended and modified on the co-rotating twin-screw extruder, drawn into strips through the die of the extruder, cooled with circulating water in the water tank, and cut into strips by a pelletizer after direct traction. Particles, made of white blended modified materials, pressed into flat p...

Embodiment 2

[0054] This example is the effect of the addition amount of O, O'-di(p-bromophenyl)diethylammonium dithiophosphate in PP on the vertical combustion experiment.

[0055] According to the preparation method of sample preparation in Example 1, weigh the flame retardant, PP and lubricant according to the set ratio, mix them evenly, pull them into strips on the upper die of the co-rotating twin-screw extruder, and pelletize them on the plastic pelletizer , made into a flat plate on a flat vulcanizing machine, and finally cut into 5 12mm sample strips. The vertical combustion test was measured according to GB4609-84, ANSI / UL-94 standards, and the measurement results are shown in Table 3.

[0056] Table 3 Effect of flame retardant O,O'-bis(p-bromophenyl)diethylammonium dithiophosphate on the vertical burning test of substrate PP plastic

[0057] Amount of flame retardant added (%)

[0058] The above results show that O,O'-bis(p-bromophenyl)diethylammonium dithiophosphate is...

Embodiment 3

[0060] This example is the effect of the addition amount of O, O'-di(p-bromophenyl)diethylammonium dithiophosphate in EVA on the limiting oxygen index.

[0061] In this embodiment, when the total mass is constant (that is, the total mass of O, O'-di(p-bromophenyl) diethylammonium dithiophosphate, lubricant and EVA plastic is constant), and the lubricant is constant, O, The addition amount of O'-di(p-bromophenyl)diethylammonium dithiophosphate is controlled between 20%-40%. The composition of the flame retardant formulation is shown in Table 4.

[0062] Table 4 Formulation composition of flame retardant O,O'-bis(p-bromophenyl)diethylammonium dithiophosphate and substrate EVA plastic

[0063] Amount of flame retardant added (%)

[0064] Weigh the flame retardant, EVA plastic and lubricant in proportion, and after mixing, pull it into a strip on the upper die of the co-rotating twin-screw extruder, cut into pellets, press it into a flat plate on a flat vulcanizer, and ...

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Abstract

The invention discloses a nitrogen and phosphorus halogen ternary flame retardant, a preparation method of the flame retardant and a flame retardant material for preparing the flame retardant, and aims to solve the problem that existing flame retardant is overhigh in phosphorus content or harsh in reaction condition so as to change the situation that many binary flame retardants are available while fewer ternary flame retardants are available. The ternary flame retardant disclosed by the invention is O, O'-di(halogenated aryl) dithioammonium phosphate which is diethyl ammonium salt. The ternary flame retardant disclosed by the invention is O, O'-di(halogenated aryl) dithioammonium phosphate which has a good flame retardant effect, and the flame retardant material prepared has good flame retardant performance. Meanwhile, the invention further expands a novel application field for O, O'-dialkyl dithiophosphate compounds.

Description

technical field [0001] The invention relates to the field of materials, in particular to the field of science and technology of flame retardant materials, and specifically relates to a class of nitrogen, phosphorus and halogen three-series flame retardants, a preparation method thereof and prepared flame retardant materials. Background technique [0002] Plastic has been loved by people since its production because of its advantages such as wide application, good formability, and low price. However, plastics and articles made of them are flammable in the air, which brings convenience and great benefits to people's production and life, but also makes people face new fire threats. In order to reduce and prevent the occurrence of fires, all countries are vigorously promoting the application of flame-retardant materials, and have achieved obvious results in improving fire safety. People have invented a large number of flame-retardant materials, such as flame-retardant general-p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/5398C08L23/12C08L23/08C07F9/18
Inventor 谢斌王艳美邹立科李玉龙冯建申陈能
Owner 成都利亨聚氨酯新材料有限公司