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Montmorillonite layered nylon6/montmorillonite nano composite material and preparation thereof

A nano-composite material and montmorillonite technology are applied in the field of layered nylon 6/montmorillonite nano-composite materials and their preparation, which can solve the problems that do not involve the preparation of layered nylon 6, etc. simple method effect

Inactive Publication Date: 2008-06-25
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, research on this class of materials has only focused on improving the exfoliation dispersion of montmorillonite and its interaction with the polymer matrix through montmorillonite modification (such as surface modification), intercalation agent selection, and exploration of intercalation processes. , did not involve the preparation of layered nylon 6 / montmorillonite nanocomposites with highly parallel alignment of montmorillonite

Method used

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  • Montmorillonite layered nylon6/montmorillonite nano composite material and preparation thereof
  • Montmorillonite layered nylon6/montmorillonite nano composite material and preparation thereof
  • Montmorillonite layered nylon6/montmorillonite nano composite material and preparation thereof

Examples

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Effect test

Embodiment 1

[0028] Pre-blended 1000g of dry nylon 6, 30g of modified montmorillonite, and 2g of antioxidant 1010, melted and blended twice on a twin-screw extruder with a four-stage temperature range of 125-255°C, and granulated to obtain montmorillonite Intercalated nanocomposites with 3% soil content. Vacuum dry in a drum oven at a constant temperature of 110°C for 7 hours. After being processed by an injection molding machine (outlet temperature 230°C, mold temperature 20°C, melt pressure 60.0bar), the preformed sample is placed in a rectangular mold with a piston, and the temperature is constant. 80°C, apply a pressure of 650Mpa with a flat vulcanizer, and keep the pressure for 5 minutes. The sample is taken out from the mold, and the nylon 6 / montmorillonite nanocomposite material with special microscopic morphology is obtained. The tensile elongation at break of the material is 131%; its low-temperature ultrathin section can be observed under the transmission electron microscope to ...

Embodiment 2

[0030] 1500g of nylon 6, 75g of modified montmorillonite, and 3g of antioxidant 1010 were pre-blended, melted, blended and granulated twice through a twin-screw extruder to obtain a nanocomposite material containing 5% of montmorillonite. Vacuum dry in a drum oven at a constant temperature of 100°C for 6 hours. After being processed by an injection molding machine (outlet temperature 230°C, mold temperature 40°C, melt pressure 80.0bar), the preformed strip is placed in a rectangular mold with a piston, and the temperature is constant. 40°C, apply a pressure of 800Mpa with a flat vulcanizer, and keep the pressure for 10 minutes. The sample was taken out from the mold, and a nylon 6 / montmorillonite nanocomposite material with special microscopic morphology was obtained. The tensile elongation at break of the material is 176%; its cryogenic ultrathin section can be observed under the transmission electron microscope that the montmorillonites are arranged parallel to each other (F...

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Abstract

The invention relates to a nanocomposite of nylon 6 / montmorillonite in the shape of a montmorillonite laminiplantation and a preparation method thereof. The nanocomposite is made up of 100 shares of nylon 6, 1 to 10 shares of modified montmorillonite and 0.1 to 1 share of antioxidizer; the nanocomposite is a stripping material obtained by melting intercalation. The nylon 6 / montmorillonite nanocomposite with special micro morphostructure is manufactured sequentially by realizing melting intercalation by means of twin-screw extrusion, by injection premolding, and by exerting high pressure from a flat vulcanizing machine with a temperature ranging between 20 DEG C and 100 DEG C thus producing solid flow. The montmorillonite, dispersing in polymeric matrix of the nanocomposite, is in a high parallel alignment. The nanocomposite is internally provided with micro laminated structure similar with the internal structure of seashell, and has larger elongation fracture tensile rate than common material of the same components. This is the first time to introduce bionics in macromolecule / montmorillonite nanocomposite.

Description

technical field [0001] The invention belongs to the field of nylon composite materials, in particular to a layered nylon 6 / montmorillonite nanocomposite material arranged in parallel with montmorillonite and a preparation method thereof. Background technique [0002] So far, polymer / montmorillonite nanocomposites have been researched for 20 years. Due to the nanoscale effect of montmorillonite and the strong organic-inorganic interface bonding force, this type of composite material has great advantages in terms of strength, heat resistance, and barrier properties. Over the years, the basic research and industrial development and application of such materials have developed very rapidly, and many materials have been industrialized and commercialized. Especially nylon 6 (a kind of polyamide) / montmorillonite nanocomposite material, as the polymer / montmorillonite nanocomposite material that first appeared and realized industrialization, has aroused great research interest. [...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08K9/04B29C70/58B29C45/76B29C43/58B29B9/12B29B13/06C08K5/10
Inventor 余木火朱姝马鹏焦明立梁燕韩克清滕翠青
Owner DONGHUA UNIV
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