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Method for preparing a phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester / organic intercalated alpha-ZrP nanocomposite

A technology of ethylene glycol phthalate and nano-composite materials, which is applied in the field of composite materials, can solve problems such as not being able to meet the use requirements of electrical components, and achieve the effects of easy promotion, overcoming uneven dispersion, and good compatibility

Inactive Publication Date: 2016-04-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to prepare phosphorus-containing polyterephthalic acid with a certain flame-retardant effect and mechanical strength with a simple process, aiming at the problem that the existing PET is easy to burn and cannot meet the use requirements of electrical parts, automobile parts, mechanical parts, etc. Ethylene glycol ester flame retardant copolyester / organic intercalation α-ZrP nanocomposite

Method used

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  • Method for preparing a phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester / organic intercalated alpha-ZrP nanocomposite
  • Method for preparing a phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester / organic intercalated alpha-ZrP nanocomposite
  • Method for preparing a phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester / organic intercalated alpha-ZrP nanocomposite

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Experimental program
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Effect test

Embodiment 1

[0042] A preparation method of phosphorus-containing polyethylene terephthalate flame-retardant copolyester / organic intercalation α-ZrP nanocomposite material, such as figure 1 Shown is a schematic diagram of the process of preparing organically modified α-ZrP, in which α-ZrP is pre-intercalated with n-propylamine (n-propylamine), and then contacted with 3-aminopropyl-triethoxysilane (APTES). branching reaction, and finally through heat treatment (heat-treatment) to obtain organically modified α-ZrP, the steps are:

[0043] 1) Disperse α-ZrP in a mixed solution of water and ethanol with ultrasonic and mechanical stirring at room temperature, the ultrasonic power is 50W, and the time is 20min; the speed of mechanical stirring is 200r / min, and the time is 20min. The mass ratio of α-ZrP is 1:2; the concentration of α-ZrP after dispersion is 0.005g / ml;

[0044] 2) Add small molecule n-propylamine to react, the molar ratio of n-propylamine to α-ZrP is 1:2.0, and the reaction time ...

Embodiment 2

[0052] A preparation method of phosphorus-containing polyethylene terephthalate flame-retardant copolyester / organic intercalation α-ZrP nanocomposite, the steps are:

[0053] 1) Disperse α-ZrP in a mixed solution of water and ethanol with ultrasonic and mechanical stirring at room temperature, the ultrasonic power is 90W, and the time is 50min; the speed of mechanical stirring is 800r / min, and the time is 50min. The mass ratio of α-ZrP is 1:8; the concentration of α-ZrP after dispersion is 0.02g / ml;

[0054] 2) Add small molecule ethylamine to react, the molar ratio of ethylamine to α-ZrP is 1:4.0, and the reaction time of adding ethylamine is 1.8h;

[0055] 3) Add the silane coupling agent 3-aminopropyl-trimethoxysilane (APTMS) dropwise to continue the reaction; the mass ratio of the amount of APTMS added to α-ZrP is 2.0:1; the rate of addition is 1.5ml / min ; The time to continue the reaction is 8h;

[0056] 4) The modified α-ZrP can be obtained by separating, washing and d...

Embodiment 3

[0062] A preparation method of phosphorus-containing polyethylene terephthalate flame-retardant copolyester / organic intercalation α-ZrP nanocomposite, the steps are:

[0063] 1) Disperse α-ZrP in a mixed solution of water and ethanol with ultrasonic and mechanical stirring at room temperature, the ultrasonic power is 60W, and the time is 30min; the speed of mechanical stirring is 500r / min, and the time is 30min. The mass ratio of α-ZrP is 1:5; the concentration of α-ZrP after dispersion is 0.008g / ml;

[0064] 2) Add small molecule n-propylamine to react, the molar ratio of n-propylamine to α-ZrP is 1:2.2, and the reaction time of adding n-propylamine is 0.9h;

[0065] 3) Add the silane coupling agent γ-methyl-acryloyloxy-propyl-trimethoxysilane (MPMS) dropwise to continue the reaction; the mass ratio of the amount of MPMS added to α-ZrP is 1.0:1; The acceleration rate is 1.2ml / min; the time to continue the reaction is 5h;

[0066] 4) The modified α-ZrP can be obtained by sep...

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Abstract

The present invention relates to a method for preparing a phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester / organic intercalated alpha-ZrP nanocomposite, and the method comprises the following steps: 1) mixing silane-coupling-agent-intercalated alpha-ZrP with a sufficiently-dried phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester in the weight ratio of 1: 99 to 10: 90 for preparation of composite resin containing the organic intercalated alpha-ZrP by melting blending; and 2) after sufficiently drying the composite resin containing the organic intercalated alpha-ZrP, which is obtained in the step 1), and using an injection molding machine for injection molding to obtain the phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester / organic intercalated alpha-ZrP nanocomposite. The phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester / organic intercalated alpha-ZrP nanocomposite comprises a phosphorus-containing flame-retardant monomer which is a reactive flame retardant, the phosphorus-containing polyethylene glycol terephthalate flame-retardant copolyester which has a certain flame retardant effect, and the organic intercalated alpha-ZrP which has the effects of synergistic flame retardance, improvement of mechanical properties of a base, and the like, so that the flame retardance and the mechanical properties of the obtained composites both are improved.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a preparation method of phosphorus-containing polyethylene terephthalate flame-retardant copolyester / organic intercalation α-ZrP nano composite material. Background technique [0002] With the development of society and the advancement of science and technology, the demand for materials is expanding day by day, and the production and application of polymer materials have also developed rapidly. Polyethylene terephthalate (PET) is widely used in packaging, construction, automobiles, electronic appliances, medical health and other fields. [0003] However, since PET is a flammable material (the limiting oxygen index is about 21%), it not only has a large heat release rate, a high calorific value, and a fast flame propagation speed when it burns, it may also release toxic gases. , PET is ignited, which is extremely harmful, and will also bring huge threats ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K9/06C08K9/04C08K3/32
CPCC08K9/06C08K3/32C08K9/04C08K2201/011C08L2201/02C08L67/02
Inventor 周家良孙宾朱美芳江晓泽王兴平俞丹王炜杜亚
Owner DONGHUA UNIV
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