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Alkyl phosphinate polymer, and preparation method and application thereof

A technology of alkyl phosphinate and polymer, which is applied in the field of organic phosphinate polymer and its preparation, and can solve problems such as limited flame retardant effect, high hydrochloric acidity, and damage to mechanical properties of materials

Inactive Publication Date: 2013-01-02
叶金标 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, we found that this polymeric phosphonate is extremely acidic and has great damage to the mechanical properties of many materials, so it cannot be applied
[0004] In any case, these flame retardants are not conducive to environmental protection, or their flame retardant effect is limited. Therefore, in reality, it is necessary to develop flame retardants with high flame retardant efficiency and environmental protection.

Method used

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  • Alkyl phosphinate polymer, and preparation method and application thereof
  • Alkyl phosphinate polymer, and preparation method and application thereof
  • Alkyl phosphinate polymer, and preparation method and application thereof

Examples

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Embodiment 1

[0045] First, an Al polymer of dialkylphosphinic acid is prepared. For this, a mixture of 150 kg of sodium hypophosphite and 750 kg of deionized water was charged into a 2000 L jacketed pressure reactor. Once the reaction mixture had been heated to 100°C, acetylene was added to the reactor through a pressure relief valve set at 0.3 MPa until saturated. Dissolve 2.0kg of 2,2,-azobis(2-methylpropylamidine) dihydrochloride (or V50) in 200kg of water, and stir the solution continuously at a temperature of 100-105°C Add evenly to this mixture. A total of 18.5kg of acetylene was consumed. Acetylene was replaced by ethylene, which was added to the reactor through a pressure reducing valve set at 0.6 MPa until saturated. The catalyst is fed uniformly into the mixture at a temperature of 100-105°C. Total reaction 10h. Consumption of ethylene 39.6kg. The reactor was depressurized, and after cooling to 80 °C. Within 2 hours, add 290kg concentration of 50wt% Al-containing 2 o 3 1...

Embodiment 2

[0047] First, an Al polymer of dialkylphosphinic acid is prepared. For this, a mixture of 150 kg of sodium hypophosphite and 750 kg of deionized water was charged into a 2000 L jacketed pressure reactor. Once the reaction mixture had been heated to 100°C, acetylene was added through a pressure relief valve set at 0.3 MPa until saturation was reached in the reactor. A solution of 2.0kg of 2,2,-azobis(2-methylpropylamidine) dihydrochloride (or V50) in 200kg of water was uniformly fed to the in the mixture. A total of 9.2kg of acetylene was consumed. Acetylene was replaced by ethylene, which was added through a pressure reducing valve set at 0.6 MPa until saturation was reached in the reactor. The catalyst is fed uniformly into the mixture at a temperature of 100-105°C. Total reaction 10h. Consumption of ethylene 59.7kg. The reactor was depressurized, and after cooling to 80 °C. Within 2 hours, add 290kg of 50wt% Al-containing 2 o 3 16.53wt% A1 2 (SO 4 ) 3 aqueous sol...

Embodiment 3

[0049] First, an Al polymer of dialkylphosphinic acid is prepared. For this, a mixture of 150 kg of sodium hypophosphite and 750 kg of deionized water was charged into a 2000 L jacketed pressure reactor. Once the reaction mixture had been heated to 100°C, acetylene was added through a pressure relief valve set at 0.3 MPa until saturation was reached in the reactor. A solution of 2.0 kg of potassium persulfate in 200 kg of water was uniformly fed into the mixture under continuous stirring at a temperature of 100-105°C. A total of 12.9kg of acetylene was consumed. Acetylene was replaced by ethylene, which was added through a pressure reducing valve set at 0.6 MPa until saturation was reached in the reactor. The catalyst is fed uniformly into the mixture at a temperature of 100-105°C. Total reaction 10h. Consumption of ethylene 51.8kg. The reactor was depressurized, and after cooling to 80 °C. Within 2 hours, add 290kg of 50wt% Al-containing 2 o 3 16.53wt% A1 2 (SO 4 ) ...

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Abstract

The invention relates to an alkyl phosphinate polymer, and a preparation method and an application thereof. The preparation method comprises the steps that: a mixture of hypophosphorous acid or hypophosphite and water or acetic acid is added into a pressure reactor with a jacket; when the mixture is heated to 70-110 DEG C, alkyne is added into the pressure reactor through a pressure reducing valve, until saturated; under continuous stirring, a water solution of a free radical initiator is uniformly added into the mixture, until the amount of alkyne reaches a requirement; alkyne is shifted into olefin; olefin is added into the pressure reactor through a pressure reducing valve, until saturated; a catalyst is uniformly added into the mixture, and a reaction is carried out for 8-12h; the pressure in the pressure reactor is reduced, and the mixture is cooled to a temperature of 80 DEG C; a metal compound is added for carrying out a reaction; and an obtained solid is subjected to centrifugal separation, water washing, and vacuum drying, such that a required product is obtained. The invention also relates to the application of the alkyl phosphinate polymer as a flame retardant, a flame retardant composition, and a flame retardant polymer molding composition.

Description

technical field [0001] The invention relates to an organic phosphinate polymer and its preparation method and application, in particular to an alkyl phosphinate polymer and its preparation method and application. Background technique [0002] The flame retardant properties of polyester or nylon can be obtained by incorporating various types of additives. Generally, halogenated compounds, especially polybrominated aromatic compounds, have been used as flame retardant additives in such polymers. It is generally believed that these flame retardant additives inhibit the free radical gas phase reactions that occur in flames when products such as polyester or nylon are ignited. This makes halogenated flame retardants very popular as additives in different types of polymer materials including polyesters and nylons. However, during the last fifteen years or so, halogenated flame retardants have come under scrutiny because of ecological concerns. Under this pressure, the flame ret...

Claims

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Application Information

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IPC IPC(8): C08G79/04C08L67/02C08L77/02C08L77/06C08L85/02C08K5/5313C07F9/30
Inventor 叶金标徐向东
Owner 叶金标
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