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Polyphenyl ether and nylon composition and preparation method thereof

A technology of polyphenylene ether and composition, which is applied in the field of polyphenylene ether and nylon composition and its preparation, can solve the problem of limiting the temperature application range of modified polyphenylene ether, reducing the heat distortion temperature and relative temperature index of materials, and the loss of polyphenylene ether. Ether heat resistance and flame retardant properties, etc., to improve toughness, improve hydrolysis resistance, and reduce water absorption

Pending Publication Date: 2022-03-08
JIANGSU BOILN PLASTICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In order to solve the problems of the prior art, the embodiment of the present invention provides a polyphenylene ether and nylon composition to overcome the problem existing in the prior art when modifying the polyphenylene ether to improve the notched impact strength and low temperature impact strength, The heat resistance and flame retardancy of polyphenylene ether will be lost at the same time. If a large amount of small molecule flame retardant is added to improve the flame retardancy, the heat distortion temperature and relative temperature index of the material will be further reduced, which greatly limits the performance of modified polyphenylene ether. Problems such as the temperature application range of phenyl ether

Method used

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  • Polyphenyl ether and nylon composition and preparation method thereof
  • Polyphenyl ether and nylon composition and preparation method thereof
  • Polyphenyl ether and nylon composition and preparation method thereof

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preparation example Construction

[0067] Corresponding to the above polyphenylene ether and nylon composition, the embodiment of the present invention also provides a preparation method of polyphenylene ether and nylon composition, refer to figure 1 As shown, the method includes the following steps:

[0068] S1: Prepare raw materials according to the following weight percentages: polyphenylene ether 20%-50%, nylon 6627%-70%, glass fiber 0-50%, liquid polybutadiene 2%-6%;

[0069] S2: Add the above-mentioned polyphenylene ether, nylon 66, and liquid polybutadiene into a twin-screw extruder for melt blending. The barrel temperature of the twin-screw extruder is The screw speed of the machine is 200-900RPM. Preferably, the barrel temperature is 290°C, the screw speed is 450RPM, and the production capacity is 50kg / hr;

[0070] S3: Add glass fiber through side feeding, and cool the extruded strip through the water tank;

[0071] S4: pelletizing by a pelletizer and then drying to obtain the polyphenylene ether an...

Embodiment 1

[0080] A polyphenylene ether and nylon composition, calculated by weight percentage, the components of the composition include:

[0081] 26.1% polyphenylene ether, 6640% nylon, 30% glass fiber, 0.5% citric acid, 2% liquid polybutadiene, 1.4% antioxidant, among which citric acid is hydrated citric acid, and the viscosity of polyphenylene ether is 0.45dL / g.

Embodiment 2

[0083] A polyphenylene ether and nylon composition, calculated by weight percentage, the components of the composition include:

[0084] 24.1% polyphenylene ether, 6640% nylon, 30% glass fiber, 0.5% citric acid, 4% liquid polybutadiene, 1.4% antioxidant, among which citric acid is hydrated citric acid, and the viscosity of polyphenylene ether is 0.45dL / g.

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Abstract

The invention discloses a polyphenyl ether and nylon composition and a preparation method thereof, and belongs to the technical field of high polymer materials. The composition comprises the following components in percentage by weight: 20%-50% of polyphenyl ether, 27%-70% of nylon 66, 0-50% of glass fiber and 2%-6% of liquid polybutadiene. The liquid polybutadiene is used for carrying out blending modification on polyphenyl ether and nylon, on one hand, the polyphenyl ether and the nylon can be toughened simultaneously, so that the polyphenyl ether and the nylon can still keep a good toughening effect at low temperature, and the low-temperature toughness and the chemical stress cracking resistance of the composition are improved; on the one hand, the toughness of the polyphenyl ether and nylon composition is improved, and the heat resistance and flame retardance of the polyphenyl ether can be kept not to be reduced, so that the temperature application range of the modified polyphenyl ether is not limited.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a composition of polyphenylene ether and nylon and a preparation method thereof. Background technique [0002] Polyphenylene ether (English name Polyphenylene Ether or Polyphenylene Oxide, referred to as PPE or PPO), the chemical name is poly 2,6-dimethyl-1,4-phenylene ether (molecular formula -[C8H8O]-), based on 2,6 -Dimethylphenol (DMP) is a monomer, a high relative molecular weight polymer obtained by oxidative coupling method. Polyphenylene ether has many advantages: the density of polyphenylene ether is 1.06g / cm 3 , the glass transition temperature is 217°C, the melting point is 254°C, the thermal decomposition temperature is 360°C, and the water absorption rate is about 0.06%; the polyphenylene ether molecular chain has strong rigidity, high mechanical strength, excellent dimensional stability, and is not easy to be thermally decomposed during processing ; Poly...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L71/12C08L47/00C08L51/08C08L51/00C08K7/14C08K5/092
CPCC08L77/06C08L2201/02C08L2201/08C08L71/12C08L47/00C08L51/08C08L51/003C08K7/14C08K5/092
Inventor 尹航张慎尹晓峰
Owner JIANGSU BOILN PLASTICS CO LTD
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