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Poly-p-phenylene oxide (PPO) grated maleic anhydride as well as preparation method and application thereof

A technology of grafting maleic anhydride and maleic anhydride, which is applied in the field of plastics, can solve the problems of low grafting rate of PPO grafted maleic anhydride, poor compatibility, great harm to human body, etc. The effect of high branch rate and low cost

Inactive Publication Date: 2011-10-26
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to its own shortcomings such as poor melt fluidity and poor solvent resistance, in order to meet the requirements of electronic appliances, communications, automobiles and other industries, PPO is generally used in various fields in the form of alloys, such as PPO / PA , PPO / PBT, PPO / PPS, PPO / PS, etc.
However, the PPO molecular chain does not contain polar or reactive groups, and has poor compatibility with polar plastics such as polyamide PA, polyester PBT, and polyphenylene sulfide PPS. In order to improve the compatibility of PPO with these polar plastics, This patent chooses to graft PPO with polar groups, wherein the polar group chooses maleic anhydride MAH
[0003] PPO grafting modification mainly includes two methods: solution grafting and melt grafting. Using the solution grafting method to carry out PPO grafting MAH, the grafting reaction time is long, the grafting efficiency is low, and it needs to consume a large amount of toxic and flammable solvents. Production High cost, great harm to the human body, pollutes the environment, occupies a large area, and is difficult to achieve continuous operation
[0004] At present, the PPO grafted maleic anhydride obtained by melt grafting has a low graft rate and cannot meet the needs of production.

Method used

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  • Poly-p-phenylene oxide (PPO) grated maleic anhydride as well as preparation method and application thereof
  • Poly-p-phenylene oxide (PPO) grated maleic anhydride as well as preparation method and application thereof
  • Poly-p-phenylene oxide (PPO) grated maleic anhydride as well as preparation method and application thereof

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preparation example Construction

[0026] see figure 1 , figure 1 Show the embodiment of the present invention PPO grafted maleic anhydride preparation method flowchart, comprise the steps:

[0027] Step S01, respectively provide the following components in weight percentage:

[0028]

[0029] Step S02, mixing the BIPB and styrene to obtain a first mixture;

[0030] Step S03, mixing the first mixture, polyphenylene ether, maleic anhydride, hexamethyltriamine phosphate, antioxidant and lubricant to obtain a second mixture;

[0031] Step S04, extruding the second mixture to obtain PPO grafted maleic anhydride.

[0032] Specifically, in step S01,

[0033] The polyphenylene ether (PPO) is a linear polyphenylene ether, and the weight percentage of the polyphenylene ether is 95-97%; the polyphenylene ether can be selected as PPOPX 100L produced by Japan Asahi Kasei Company.

[0034] The maleic anhydride is a colorless needle crystal, and the weight percentage of the maleic anhydride is 1-2%; the maleic anhydr...

Embodiment 1

[0051] Adding styrene with a mass percentage of 1% into the reactor, adding 0.15% by weight of BIPB, and stirring for 10 minutes to obtain the first mixture;

[0052] The mass percentage composition is 96.25% PPO, the mass percentage composition is 1.2% maleic anhydride, the mass percentage composition is 0.4% hexamethyl phosphate triamine, the mass percentage composition is 0.2% 1010 and 0.1% 168 and 0.7% lubricant by mass percentage are poured into the reactor, and the previously prepared styrene / BIPB mixed solution is slowly added dropwise to the material, and stirred evenly to obtain the second mixture;

[0053] The second mixture is added into the hopper of the twin-screw extruder, grafted through melting reaction, extruded and granulated. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 210°C; zone 2: 220°C; zone 3: 230°C; zone 4: 240°C; machine head: 250°C; ~5min, the pressure is 14MPa.

Embodiment 2

[0055] Adding styrene with a mass percentage of 1% into the reactor, adding 0.15% by weight of BIPB, and stirring for 15 minutes to obtain the first mixture;

[0056] The mass percentage composition is 95.65% PPO, the mass percentage composition is 1.8% maleic anhydride, the mass percentage composition is 0.4% hexamethyl phosphate triamine, the mass percentage composition is 0.2% 1010 and 0.1% 168 and 0.7% lubricant by mass percentage are poured into the reactor, and the previously prepared styrene / BIPB mixed solution is slowly added dropwise to the material, and stirred evenly to obtain the second mixture;

[0057] The second mixture is added into the hopper of the twin-screw extruder, grafted through melting reaction, extruded and granulated. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 210°C; zone 2: 220°C; zone 3: 230°C; zone 4: 240°C; machine head: 250°C; ~5min, the pressure is 14MPa.

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Abstract

The invention provides poly-p-phenylene oxide (PPO) grated maleic anhydride as well as a preparation method and application thereof, being suitable for the technical field of plastic. The preparation method of PPO grated maleic anhydride comprises the following steps: respectively providing polyphenyl ether, maleic anhydride, bis(tert-butyldioxyisopropyl)benzene (BIPB), styrene, hexamethylphosphoramide, an antioxygen and a lubricant; mixing BIPB with styrene so as to obtain a first mixture; mixing the first mixture, polyphenyl ether, maleic anhydride, hexamethylphosphoramide, the antioxygen and the lubricant so as to obtain a second mixture; and extruding the second mixture so as to obtain PPO grated maleic anhydride. Through the method for preparing PPO grated maleic anhydride, obtained PPO grated maleic anhydride has high grafting rate through using the components. The method has low cost, is simple to operate and is suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of plastics, and in particular relates to a PPO grafted maleic anhydride, a preparation method and application thereof. Background technique [0002] PPO is currently the fifth largest general-purpose engineering plastic in the world, with excellent heat resistance, weather resistance and mechanical properties. However, due to its own shortcomings such as poor melt fluidity and poor solvent resistance, in order to meet the requirements of electronic appliances, communications, automobiles and other industries, PPO is generally used in various fields in the form of alloys, such as PPO / PA , PPO / PBT, PPO / PPS, PPO / PS, etc. However, the PPO molecular chain does not contain polar or reactive groups, and has poor compatibility with polar plastics such as polyamide PA, polyester PBT, and polyphenylene sulfide PPS. In order to improve the compatibility of PPO with these polar plastics, This patent chooses to graft ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/08C08K5/5399C08K5/14C08K5/134C08K5/526C08L51/08
Inventor 徐东徐永马百钧
Owner SHENZHEN KEJU NEW MATERIAL
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