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Polypropylene/ organic montmorillonite nano composite material and preparation method thereof

A nano-composite material and organic montmorillonite technology, applied in the field of composite materials, can solve the problems of complex process, lowering the application competitiveness of polypropylene foam plastics, and high cost of high-melt-strength polypropylene, achieving low preparation costs and increasing market. Competitiveness, the effect of reducing production costs

Active Publication Date: 2010-11-10
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, the method for the high-melt-strength polypropylene resin prepared by above-mentioned some methods, some need specific equipment (as US4916198, SPE ANTEC Proceedings, 1999 etc.) or need to develop special-purpose catalyst (CN1955199A, US6225432 etc.), complex process, make The higher cost of high melt strength polypropylene reduces the application competitiveness of polypropylene foam

Method used

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  • Polypropylene/ organic montmorillonite nano composite material and preparation method thereof
  • Polypropylene/ organic montmorillonite nano composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Take by weighing 100 parts of polypropylene powder 2000g, 0.04 part of benzoyl peroxide 0.8g, 3 parts of trimethylolpropane triacrylate 60g by weight and number of parts, completely mix benzoyl peroxide and trihydroxypropane triacrylate Dissolve in an appropriate amount of acetone solution, and stir evenly to obtain an acetone solution containing benzoyl peroxide and trihydroxypropane triacrylate. Put the acetone solution containing benzoyl peroxide and trihydroxypropane triacrylate, polypropylene powder and 0.10 parts of processing aid, that is, 2g of MP309 compounding agent, in a high-speed mixer and mix for 10 minutes, then add it into a twin-screw extruder, Set the screw speed of the twin-screw extruder to 50rpm, and the feeding speed to 120g / min. The twin-screw extruder is divided into six heating zones, and the temperatures are 170°C, 190°C, 200°C, 200°C, 200°C, 205°C, the temperature of the head is 200°C, and the polypropylene masterbatch is obtained through one ...

Embodiment 2

[0043] Take by weight 100 parts of polypropylene powder 2000g, 0.03 part of benzoyl peroxide 0.6g, 3.5 parts of 1.6-hexanediol diacrylate 70g, dissolve benzoyl peroxide and trihydroxypropane triacrylate in acetone solution, and stir evenly to obtain an acetone solution of benzoyl peroxide and trihydroxypropane triacrylate. Put the acetone solution of benzoyl peroxide and trihydroxypropane triacrylate, polypropylene powder and 0.15 parts of processing aid, that is, 3gMP309 compounding agent, in a high-speed mixer and mix them for 10 minutes, then add them into a twin-screw extruder, set The screw speed of the twin-screw extruder is set at 60rpm, and the feeding speed is 100g / min. The twin-screw extruder is divided into six heating zones, and the temperatures are 175°C, 190°C, 200°C, 205°C, 205°C, and 200°C. °C, head temperature is 200 °C, polypropylene masterbatch is obtained through one extrusion granulation; during the extrusion process, the vacuum pump at the end of the scre...

Embodiment 3

[0046] Take by weight 90 parts of polypropylene powder 900g, 0.05 part of benzoyl peroxide 0.5g, 3.5 parts of 1.6-hexanediol diacrylate 35g, and benzoyl peroxide and 1,6-hexanediol Diacrylate is dissolved in acetone solution and stirred evenly to obtain an acetone solution of benzoyl peroxide and 1,6-hexanediol diacrylate. Put the acetone solution of benzoyl peroxide and 1,6-hexanediol diacrylate, polypropylene powder and 0.10 parts of processing aid, that is, 1 g of MP309 compounding agent, in a high-speed mixer and mix for 8 minutes, then add the twin-screw extruder In the machine, the screw speed of the twin-screw extruder is set to 60rpm, and the feeding speed is 140g / min. 200°C, 205°C, the temperature of the head is 200°C, and the polypropylene masterbatch is obtained through one-time extrusion granulation; during the extrusion process, the vacuum pump at the screw tail of the twin-screw extruder is turned on to vacuumize to remove volatilization of acetone, etc. things....

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Abstract

The invention discloses a polypropylene / organic montmorillonite nano composite material which is prepared by the components in part by weight: 80-100 parts of polypropylene, 1-15 parts of organic montmorillonite, 0.02-0.10 part of organic peroxide initiator, 2.0-5.0 parts of cross-linking agent and 5-15 parts of compatilizer. The invention also discloses a preparation method of the polypropylene / organic montmorillonite nano composite material. The polypropylene / organic montmorillonite nano composite material has higher crystallization temperature, toughness and modulus as well as better strength, realizes low cost and high performance of polypropylene foam material, and improves the application competitiveness of polypropylene plastic.

Description

technical field [0001] The invention relates to a composite material, in particular to a polypropylene / organic montmorillonite nanocomposite material, and also relates to a preparation method of the polypropylene / organic montmorillonite nanocomposite material. Background technique [0002] Polypropylene (PP) is one of the most widely used and fastest growing resins in the world. Compared with other thermoplastic resins, PP has the characteristics of low density, high melting point, wide source, low price, superior mechanical properties, good chemical stability, etc., and has become indispensable in packaging, light industry, construction, electronics, electrical appliances and automobile industries basic raw materials. However, the molecular chain of ordinary polypropylene is a linear structure, and the molecular weight distribution is relatively narrow, resulting in low melt strength of polypropylene. In thermoforming processing, the melt strength and viscosity drop sharpl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L51/06C08L51/00C08K9/04C08K3/34C08K5/103
Inventor 苏峰华邹余敏宋怡静黄汉雄
Owner CHINA PETROLEUM & CHEM CORP
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