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A Kenaf Fiber Based End-Grain Sandwich Core Material for Composites

Award Information

Agency:
Department of Agriculture
Branch:
N/A
Award ID:
57349
Program Year/Program:
2002 / SBIR
Agency Tracking Number:
2002-00421
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Polymer Bridge Systems, Inc.
1001 Chalkstone Drive Mitchell, SD 57301
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2002
Title: A Kenaf Fiber Based End-Grain Sandwich Core Material for Composites
Agency: USDA
Contract: 2002-33610-11879
Award Amount: $79,600.00
 

Abstract:

The high cost of core material in the composites industry remains a significant barrier to expansion. Composite projects, designed to replace metal, concrete, or wood, especially large projects such as bridge decks, regularly fail when it comes to cost analysis. The composites industry, for fifty years, has relied upon end-grain balsa wood core, due to its strength and low weight, as the material of choice. Balsa average 9 lbs/cubic foot density whereas other woods are 30 lbs. cu. ft. and up, the kenaf inner fiber is seven to eight lbs/cubic foot and a fraction of the price of balsa. A Kenaf-based core provides "balsa-like" inner fibers, and when the sticks are pressed and borded they become a very strong "end-grained" block. The resulting core appears to be stronger than balsa in compression and "core-shear" due to the smaller diameter sticks. Core shear is the all-important test when one evaluates the dynamic behavior of a composite sandwich cored structure, and load-carrying ability in compression determines the overall strength of the sandwich-cored part. The proposed project shall demonstrate the feasibility of this material as a composite sandwich core.

Principal Investigator:

Dale Ryan
6059963903
Daleryan2@mit.midco.net

Business Contact:

John Sij
Professor of Research
9405529941
j-sij@tamu.edu
Small Business Information at Submission:

Polymer Bridge Systems, Inc.
1001 Chalkstone Drive Mitchell, SD 57301

EIN/Tax ID: 460427892
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No