Phenyl phosphonic acid rare-earth salt compounded system flame-retardant glass fiber enhanced PET material and preparation method thereof

A technology of polyethylene terephthalate and polyethylene terephthalate, which is applied to the flame-retardant glass fiber reinforced polyethylene terephthalate material of phenylphosphonic acid rare earth salt compound system and the same In the field of preparation, it can solve the problems of weakened dominant position and toxicity, and achieve the effect of obvious effect, simple and easy processing method, and wide application range.

Inactive Publication Date: 2013-05-01
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Abstract
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  • Application Information

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Problems solved by technology

However, due to toxicity and environmental problems, some European countries have begun to restrict

Method used

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  • Phenyl phosphonic acid rare-earth salt compounded system flame-retardant glass fiber enhanced PET material and preparation method thereof
  • Phenyl phosphonic acid rare-earth salt compounded system flame-retardant glass fiber enhanced PET material and preparation method thereof
  • Phenyl phosphonic acid rare-earth salt compounded system flame-retardant glass fiber enhanced PET material and preparation method thereof

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Example Embodiment

[0043] The formula of the example is as follows:

[0044] (2) In this example, the rare earth element lanthanum (La) was used as an example to synthesize lanthanum phenylphosphonate (LaPP) for experimentation. The method for synthesizing lanthanum phenylphosphonate is the preparation method of the rare earth phenylphosphonate salt, specifically : (1) Add 8mmol phenylphosphonic acid (H 2 O 3 PC 6 H 5 ,) Dissolve in 100mL ethanol / water mixed solvent (ethanol / water volume ratio 1:1) to obtain a phenylphosphonic acid solution, and then place the resulting solution in a 250mL three-necked flask;

[0045] (2) Take 8mmol ReCl 3 ·6H 2 O was dissolved in 75mL of deionized water and added to the phenylphosphonic acid solution of step (1), stirred, adjusted to pH 6 with 0.1mol / L NaOH solution, stirred and refluxed at 70~80℃ for 22 hours to obtain White suspension

[0046] (3) The white suspension obtained in step (2) is suction filtered, washed with deionized water, filtered, and dried at 80°C...

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Abstract

The invention discloses a phenyl phosphonic acid rare-earth salt compounded system flame-retardant glass fiber enhanced PET (GF-PET) material. The material comprises the components in percent by weight: 80-100 percent of GF-PET, 0-10 percent of phenyl phosphonic acid rare-earth salt, 0-15 percent of microencapsulated red phosphorus and 0-3 percent of anti-oxidant. The preparation method comprises the following steps: preparing the phenyl phosphonic acid rare-earth salt through phenyl phosphonic acid and rare-earth salt via a solution reflux method, then compounding the synthesized phosphorus rare-earth salt and the microencapsulated red phosphorus, and finally applying to the flame-retardant GF-PET through a melt blending method. The flame-retardant PET can pass a UL94 V-0 level test under the condition of less flame retardant consumption and is improved in extension performance. The preparation method for the synthesized composite material is simple and environment-friendly, and can be widely applied to the fields of mechanical equipment, electric apparatus housings, automotive trims and the like.

Description

technical field [0001] The invention relates to organic synthesis, blending of polymer composite materials, material flame retardancy and mechanical performance testing, etc., that is, the synthesis of a rare earth salt of phenylphosphonic acid, the compounding of rare earth salt and microcapsule red phosphorus to flame-retardant glass fiber Preparation and performance testing of reinforced PET materials, specifically flame retardant glass fiber reinforced polyethylene terephthalate material of phenylphosphonic acid rare earth salt compound system and its preparation method. technical background [0002] Polyethylene terephthalate (PET) is one of the most widely used synthetic fiber materials and is widely used as fiber and film materials. In recent years, PET has attracted more and more attention as engineering plastics, especially glass fiber Reinforced PET engineering plastics (Glass-fiber reinforced Poly (ethylene terephthalate), abbreviated as GF-PET) are not only cheap...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/06C08K9/10C08K3/02C08K7/14C08K5/5317
Inventor 陈超蔡远征郭正虹方征平叶辰栾国俊
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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