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Preparation of polypropylene / organic montmorillonite nanometer composite material

A technology of nanocomposite materials and organic montmorillonite, which is applied in the field of preparing polypropylene composite materials, can solve problems such as unsatisfactory mechanical properties and unsatisfactory strengthening and toughening effects, achieve good industrialization prospects, improve modulus and toughness, Applicable effect

Active Publication Date: 2006-08-30
SHANGHAI PRET COMPOSITES
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Problems solved by technology

However, most of these reported polypropylene / organic montmorillonite nanocomposites belong to intercalation nanocomposites, which cannot give full play to the nanoscale effect of the nanodispersed phase, so the strengthening and toughening effect has not reached the expected value (see Chinese Patent CN1247206A, CN1267682A, US Patent US5910523)
Even if the peeling is achieved, the mechanical properties are not ideal

Method used

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  • Preparation of polypropylene / organic montmorillonite nanometer composite material

Examples

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Embodiment Construction

[0013] The following examples are to further illustrate the present invention, but not to limit the scope of the present invention.

[0014] Embodiments 1 to 4: According to the formula in Table-1, at a temperature of 200°C, add polypropylene (F401, melt index 2.3g / 10min, Yangzi Petrochemical Company), maleic anhydride in a twin-screw extruder Grafted polypropylene (MAH-g-PP, grafting rate 1%, Shanghai Rizhisheng Plastic Co., Ltd.), epoxy resin (bisphenol A diglycidyl ether type, brand: E-12 epoxy equivalent 810g / eq, Shanghai Resin T Co., Ltd.), imidazole (EMI, analytically pure, Shanghai Chemical Reagent Factory), organic montmorillonite (bis(2-hydroxyethyl) methyl tallow base quaternary ammonium salt modification, DK2 type, Zhejiang Feng Rainbow Clay Co., Ltd.) extrusion granulation, screw speed 110 rpm. The epoxy resin cures during the extrusion process and is inserted into the organic montmorillonite sheets under high shear forces. The prepared composite material partic...

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Abstract

Preparation of polypropylene / organic montmorillonite nanocompositions is achieved by applying the dynamic solidification into the system of the polypropylene / the organic montmorillonite nanocomposites / epikote, namely solidifying at melt blend process. Its advantages include: simple production technology, good attribute for processing and applicability. It can be used for the material of civil construction facilities, car fitting part and household appliances.

Description

technical field [0001] The invention relates to a preparation method of a polypropylene / organic montmorillonite nanocomposite material, in particular applying a dynamic curing method to a polypropylene / organic montmorillonite / epoxy resin system to prepare a polypropylene composite material. Background technique [0002] Polypropylene is a polyolefin resin used in a large amount at present. It has good mechanical properties, but its rigidity and modulus are not high, and it is difficult to meet the requirements of engineering materials. In order to improve the rigidity and modulus of polypropylene, inorganic fillers and glass fibers are usually added to it. Reinforcement with fillers will reduce the toughness of the material, while the use of nanoparticles can achieve both reinforcement and toughness. In recent years, research on polypropylene (PP) / organic montmorillonite (OMMT) nanocomposites has become increasingly active. However, most of these reported polypropylene / orga...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K13/02B29C47/40
Inventor 朱江磊王仕峰张勇张隐西
Owner SHANGHAI PRET COMPOSITES
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