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Polymer composite material with oriented padding and preparation method thereof

A composite material and polymer technology, applied in the field of polymer composite materials and its preparation, can solve the problems of cumbersome process, time-consuming, difficult large-scale production, etc., and achieve the effect of simple equipment, common raw materials, and outstanding substantive characteristics

Inactive Publication Date: 2010-07-07
翁文桂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the many steps required for both spin-coating and assembly techniques, the process is cumbersome, time-consuming, and not easy to mass-produce

Method used

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  • Polymer composite material with oriented padding and preparation method thereof
  • Polymer composite material with oriented padding and preparation method thereof
  • Polymer composite material with oriented padding and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] The polymer composite material with oriented fillers comprises a polymer matrix filled with a shape anisotropic filler. In this embodiment, the polymer matrix is ​​polyvinyl alcohol (PVA) with a molecular weight of about 7000, and the filler is Na-type montmorillonite. A material composed of polyvinyl alcohol (PVA) and Na-type montmorillonite is prepared into a composite material by a layer doubling extrusion method of division-re-lamination and confluence, and the shape-anisotropic filler is oriented in the material stream during the preparation.

[0046] The preparation method of the polymer composite material with orientation filler, it comprises:

[0047] Preparatory steps: first put an appropriate amount of montmorillonite powder into deionized water, then vigorously stir for a period of time (for example, two weeks), then stand still, and then collect the supernatant after standing. Slowly add PVA into deionized water at 80°C and dissolve under vigorous stirring ...

Embodiment 2

[0051] The polymer composite material with oriented filler adopts a binary structure, that is, two strands of different materials are laminated and then extruded. It includes two polymer matrices, the first polymer matrix is ​​filled with a shape anisotropic filler. In this embodiment, the first polymer matrix is ​​polycarbonate (PC), and the second polymer matrix is ​​polyethylene terephthalate (PET). Both PC and PET are commercially available products . The polycarbonate (PC) is filled with a filler, the filler is talc, the average thickness of the talc particles is about 2 microns, the aspect ratio is about 10, that is, the average diameter is about 20 microns. The above-mentioned polycarbonate (PC) and talc constitute the material composition A, and the PET constitutes the material composition B. These material compositions are prepared into a composite material by layer multiplication extrusion method of lamination-division-re-lamination and confluence, during which the...

Embodiment 3

[0056] The polymer composite material with oriented fillers comprises a polymer matrix filled with a shape anisotropic filler. In this embodiment, the polymer matrix is ​​nylon 6, the filler is organic montmorillonite, and the organic montmorillonite is clay modified by intercalation of 12-amino-12-acid. Composites consisting of nylon 6 and organomontmorillonite were produced by split-relamination confluent layer doubling extrusion in which the shape-anisotropic filler was oriented in the material stream.

[0057] The preparation method of the polymer composite material with orientation filler, it comprises:

[0058] Preliminary steps: first mix caprolactam with organic montmorillonite, then use in-situ wet polymerization to prepare the exfoliated clay-filled nylon 6 nanocomposite material containing 5wt% (montmorillonite is almost completely exfoliated in the nylon 6 matrix), pulverize composite material.

[0059] Layer multiplication step: use a twin-screw extruder to furt...

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Abstract

The invention discloses a polymer composite material with oriented padding and a preparation method thereof. The polymer composite material comprises at least one polymer substrate and is characterized in that at least one of the polymer substrates is filled with at least one padding with shape anisotropy; the material composition comprising raw materials of the polymer substrates and the padding with shape anisotropy is prepared into the composite material by a layer multiplying and extruding method by cutting and then superposing and accumulating; and in the process of preparation, the padding with shape anisotropy obtains orientation in material flows. In the invention, the operation of adding the padding with shape anisotropy into the substrate and the layer multiplying operation are combined together, and the padding with shape anisotropy gradually obtains orientation when the material is continuously cut and then superposed and accumulated, so that the material is prepared into the polymer composite material with the oriented padding, thereby solving the problems of low efficiency, difficult control, high requirements and the like existing in the background art.

Description

technical field [0001] The present invention relates to the field of polymer processing, more particularly, to polymer composite materials containing shape-anisotropic fillers capable of orientation and a preparation method thereof. Background technique [0002] With the development of composite material technology, the application fields of composite materials have become wider and wider, and the usage has also been greatly increased. A good example is that the two most advanced airliners in the world, Airbus's A380 and Boeing's Dream 787, both use composite materials extensively. Composites for the fuselage and wings of these airliners account for an unprecedented proportion of about 50 percent of the aircraft's total weight. Because composite materials are generally light and easy to process and form into various shapes and structures, not only can the weight of the aircraft be greatly reduced, but also the aerodynamics can be greatly improved. Composite materials, espe...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08K7/00C08J3/20B29C47/12B29C47/06B29C47/56B29C48/30
Inventor 翁文桂
Owner 翁文桂
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