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Filled fiber reinforced thermoplastic composite

A composite material and fiber-reinforced technology, applied in thin material processing, synthetic resin layered products, transportation and packaging, etc., can solve the problems of reducing the physical properties of composite materials, achieve low density, reduce shrinkage, and reduce water absorption sexual effect

Inactive Publication Date: 2007-03-21
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the density reduction achieved by the incorporation of hollow particles comes at the expense of the desired physical properties of the composite

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] surface treatment

[0022] Specifically, glass bubbles were washed with deionized water and dried prior to surface treatment. After washing, fumed silica (up to 2% by weight) was mixed with the glass microspheres. The silane treating agent (APTES or AEAPTMS) was dissolved in water (0.2-0.5% by weight). The solution (1500 g) was then charged to a Ross Mixer (available from Charles Ross & Son Company, Hauppauge, NY). Then start mixing at medium speed and add glass microspheres (GM) slowly. After the GM addition was complete, the mixture was continued to mix for an additional 15 minutes. The resulting wet GM slurry was then poured into aluminum pans and dried in an oven at 80°C. After drying, the microspheres were sieved through a 180 micron sieve. Usually the GM yield after treatment is greater than 90%.

[0023] Compounding and forming of composite materials

[0024] All samples were mixed on a Berstorff Ultra Glide twin-screw extruder (TSE; screw diameter ...

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Abstract

Fiber-reinforced thermoplastic composites containing hollow bubbles provide surprisingly low density and retention of robust physical properties.

Description

field of invention [0001] This invention relates to improved fiber reinforced thermoplastic resin composites, especially fiber reinforced composites filled with glass bubbles. Background technique [0002] It is known that fibers can be incorporated into thermoplastic composites in order to improve the mechanical properties of the thermoplastic. For example, thermoplastic materials can be reinforced by incorporating fibers therein to improve the impact strength, tensile strength, tensile and flexural modulus, and shrinkage resistance of thermoplastic articles or films. [0003] It is also known that hollow particles can be mixed into resin compositions as fillers to reduce the density of thermoplastic articles or films and to obtain greater isotropic linear thermal expansion coefficient and shrinkage characteristics compared to fibers. However, the density reduction achieved by the incorporation of hollow particles comes at the expense of degrading the desired physical prop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J9/32C08J9/00B32B27/04B32B27/20C08K7/06C08K7/14C08K7/28
CPCC08K7/14Y10T428/249946Y10T428/249974C08J9/32C08J9/0085C08K7/28Y10T428/249945C08K7/06C08J5/04Y10T428/249971Y10T428/249924Y10T428/24994B29B7/90C08J9/00
Inventor 安德鲁·S·德·苏扎布赖恩·C·伊斯汀罗纳德·J·伊斯雷尔森
Owner 3M INNOVATIVE PROPERTIES CO