Dissertation > Excellent graduate degree dissertation topics show

Reinforcement of Natural Rubber by Nanocrystalline Cellulose

Author: LinLu
Tutor: LuoYuanFang
School: South China University of Technology
Course: Materials Science
Keywords: Natural rubber Cellulose nanocrystals Carbon black Composite materials
CLC: TQ330.15
Type: Master's thesis
Year: 2010
Downloads: 252
Quote: 1
Read: Download Dissertation

Abstract


Cellulose nanocrystals (Nanocrystalline Cellulose, NCC) is a wide variety of sources, preparation is simple, low cost, environmentally friendly and biodegradable biopolymer material. Coryneform NCC perfect crystalline structure, large aspect ratio, a low density and having excellent mechanical properties, can be used as a new type of green rubber reinforcing filler. In our previous research work on the basis of the thesis NCC partially replace carbon black reinforced natural rubber (Natural Rubber, referred to as NR). Preparation of nano-microcrystalline cellulose hydrolyzed by acid hydrolysis of microcrystalline cellulose (Microcrystalline Cellulose, MCC), and natural rubber latex aggregation of sink made of NR / NCC mixture, and the addition of carbon black (Carbon Black in the kneading, this article abbreviated as CB), the NR / NCC / CB composites were prepared. Fixed filler total of 45 phr of research on the structure and properties of the composites before and after modification of 5phr adhesive RH NR / NCC / CB composite NCC replace carbon black. The results show that the NCC partially replace carbon black NR / NCC / CB composite mechanical properties and resistance to flex cracking performance has improved abrasion resistance is maintained, compression Fatigue heat and rolling resistance to improve. NCC has good dispersibility in the two composite materials. The NCC and carbon black use ratio for the best overall performance of the composite 10phr/35phr. RH composites modified the effect is significant. NCC and carbon black the use ratio 10phr/35phr RH amount of NR / NCC / CB composite performance. With the the RH increasing amount of the composite material apparent crosslink density and the improvement of abrasion resistance. RH amount of 4 phr, the mechanical properties of the composite optimal; the amount of 2phr, compression fatigue properties of the composite, compression fatigue temperature rise and permanent deformation with unmodified composite respectively, compared to a decrease of 5.5 ℃ and 3 percentage points. The paper through the test, select a wide range of coupling agent silane coupling agent KH-550 on the NR / NCC / CB composite modified NCC with carbon black with a ratio of 10phr/35phr KH-550 the amount of the structure and properties of the composites. The experimental results show Add to KH-550 can be improved composite material abrasion resistance and resistance to flex crack growth resistance, improved compression fatigue performance of the composite material, reduce the rolling resistance. Composites as compared with unmodified, adding 1phr KH-550 NCC in the body of a natural rubber-based, having a more regular orientation.

Related Dissertations

  1. Yunnan Natural Rubber Industry Development Strategy,F326.2
  2. Soil Organic Carbon Fractions and Its Dynamic in Different Soil Types of Wuyi Mountains,S153.6
  3. Preparation and Characteration of Composite Microspheres with Dual-, Triple- Responsive Properties,O631.3
  4. Effect of Reinforcing Materials on the Properties of Nitrile Butadiene Rubber,TQ333.7
  5. Polyaniline / short fiber reinforced natural rubber properties,TQ330.1
  6. Preparation and Properties of Lioght Weight Refractory Used in Radiant Cooker and Fireplace,TQ175.1
  7. Preparation of Surface-functionalized Graphene and Its Influence on the Mechanical Properties of Nanocomposite Materials,TB332
  8. Experimental Study on the Ethylene/air Diffusion Flame Based on Near-infrared Emission Spectrometry Measurement,TK16
  9. Natural rubber acetone soluble matter extraction, separation and its impact on the performance of the rubber,TQ330.1
  10. Endogenous iron-based composites and tribology research,TB331
  11. Environmentally friendly cement-based composites technology and Experimental Study of Performance,TU599
  12. Ultra-high performance cement-based composites static mechanical properties and resistance to penetration performance of,TU528
  13. On the integrated materials Painting Application and impact,J212
  14. Multiscale Asymptotic Analysis for Elastic Problems of Composite Materials and Mixed Finite Element,O411.1
  15. Pressure Extrusion Formation and Soft Magnetic Properties Study of Composite Magnetic Powder Cores,TF124.39
  16. Preparation and Performance Study of Composite Phase Change Materials,TB34
  17. Synthesis, Characterization and Property Study of Magnetic Fe3O4 Micro-and Nanocomposites,TB383.1
  18. Study on Fluorescent Hydrotalcite-like and Polyaniline Composite Materials,TB332
  19. Research on Damping Capacity of CuAlMn Alloy and CuAlMn Reinforced Magnesium Matrix Composites,TB33
  20. Preparation and Properties of Water-Soluble Core-Materials Applied for RTM,TB332
  21. Novel fragile Composites,TB332

CLC: > Industrial Technology > Chemical Industry > Rubber Industry > General issues > Basic theory > Reinforcement theory
© 2012 www.DissertationTopic.Net  Mobile