U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 Dairy and Functional Foods Research: Wyndmoor, PA
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    About ERRC
                        Greetings from the Director
                                    Directions/Lodging
                                    History and Accomplishments
                    Our Work
                        Biomass Pyrolysis Research
                                    IPMP 2013
                                    IPMP Dynamic Prediction
                                    IPMP Global Fit
                                    Pathogen Modeling Program (PMP)
                                    Predictive Microbiology Information Portal (PMIP)
                                    PoultryFARMSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Northeast Area Wyndmoor, Pennsylvania Eastern Regional Research Center Dairy and Functional Foods Research Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            JIANG, LONG - Washington State Universityitem
                                            Liu, Linshuitem
                                            CHEN, FENG - Washington State Universityitem
                                            QIAN, JUN - Washington State Universityitem
                                            JIJUN, HUANG - University Of Massachusettsitem
                                            WOLCOTT, MICHAEL - Washington State Universityitem
                                            ZHANG, JINWEN - Washington State University
  Submitted to: Industrial and Engineering Chemistry Research
                                    Publication Type: Peer Reviewed Journal
                                    Publication Acceptance Date: 11/19/2009
                                    Publication  Date: 2/1/2010
                                    Citation: Jiang, L., Liu, L.S., Chen, F., Qian, J., Jijun, H., Wolcott, M., Zhang, J. 2010. Reinforcing and Toughening Effects of Bamboo Pulp Fiber on Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) Fiber Composites. Industrial and Engineering Chemistry Research. 49:572-577.Interpretive Summary: Natural polymer reinforced biodegradable composites are environmentally friendly and have been studied as alternatives to petro-chemical engineering materials. How to improve the mechanical properties of the composites to match those of petroleum-based plastics remains as a key challenge. In this study, composites were prepared from bamboo fiber and suitable chemicals. The resultant composites have a tensile strength and toughness that match the values of high density polyethylene, a petroleum based polymer. The study highlights a new approach to further improve the mechanical properties of bamboo composites with proper chemical treatment.
                                Technical Abstract: Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV)/bamboo pulp fiber composites were melt-compounded and injection-molded. Tensile, impact and dynamic mechanical properties of the composites were studied. In contrast to many other short natural fiber reinforced biocomposites which demonstrate decreased strain-at-break, impact toughness and tensile strength, the PHBV/bamboo pulp fiber composites displayed increased tensile strength and impact toughness, and maintained/increased strain-at-break. Microscopic study of the fracture surfaces revealed extensive fiber pullout in both tensile and impact tests. The fiber pullout suggests insufficient interfacial adhesion between the fiber and the matrix. The pullout process in the impact testing dissipated a significant amount of energy and hence substantially improved the impact toughness of the composites. With the improved interfacial adhesion provided by coupling agent polymeric diphenylmethane diisocyanate (pMDI), the strength and modulus of the composites were further increased. However, the toughness was decreased due to the inhibition of the fiber pullout. An acoustic emission test revealed a significantly different process of structural change for the composites with/without pMDI during tension test.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov