Dissertation > Excellent graduate degree dissertation topics show

Modification of Talc Powder and Its Reinforcing and Toughening on Recycled Polypropylene

Author: WangMin
Tutor: WuChiFei
School: East China University of Science and Technology
Course: Materials Science and Engineering
Keywords: recycled PP talc powder coupling agent core-shell particles mechanical properties
CLC: TQ325.14
Type: Master's thesis
Year: 2012
Downloads: 42
Quote: 0
Read: Download Dissertation

Abstract


In the present study, modified talc powder with better performance was found by adding different coupling agents, on this base, core(modified talc powder)-shell(LDPE) particles were prepared. When separately blended with treated talc power and core shell particles, the composites were tested both by surface and mechanical testing.(1) Different coupling agents were chosen in this study, including aluminium coupling agent,titanate coupling agent,silane coupling agent. The contact angle, activation rate and oil absorbency all increased in various degree. Different coupling agents treated talc powder were added into recycled PP. After blending, the flexural, impact and tensile strength of the composites were tested. It is found that the best content was 1 percent. In addition to that, DSC was used to study the melt process and SEM was used to observe the morphology of impact fracture. The result showed that aluminate coupling agent gives the best modification, because its treatment the melting point increased and the compatibility was better.(2) The method to prepare rigid core (talcum powder)-soft shell (LDPE withlow melt point and high melt index) structure particle was researched. Furthermore, this kind of core-shell particle is used to strengthen and toughen recycled PP.The influence of the core-shell particle on recycled PP in tensile strength, flexural modulus, impact strength, processing fluidity and heat resisting property was studied. The result showed that positive effects can be obtained through filling this kind of core-shell structure particles in recycled PP.(3) The effect of modified talc powder on non-isothermal crystallization behaviour and kinetics analysis of recycled PP/talc powder blends was investigated. It was observed that the talc powder plays the role of nucleation agent. And among all the used coupling agents aluminium coupling agent showed the best nucleation effect.

Related Dissertations

  1. Reactive Hot-Pressing and Mechanical Properties of (ZrB2-ZrO2)/BN Composites,TB332
  2. Research on Welding Characteristics of CO2 Laser-GMA Hybrid Welding for Ultra-Low Carbon Bainitic Steel,TG456.7
  3. Microstructure and Mechanical Properties of Mg-Zn-Y-Zr Alloys,TG146.22
  4. Study on the Recycling of Post-Consumer Polyester Textiles,X791
  5. Fabricationand Properties of SiC-AlN Multiphase Ceramics Prepared by Gelcasting,TQ174.62
  6. Synthesis of Polysulfones and Modification for Epoxy Adhesives,TQ433.437
  7. Nano LaFeO 3 Controllable Synthesis and TiO 2 bridged construct composite photocatalyst,O643.36
  8. The Research on Extrusion Parameters Through the Plate Billet of Magnesium Alloy,TG379
  9. Effect of Adding ZrO 2 Nanopowder on Microstructure and Mechanical Properties of Carbon Steel,TB383.1
  10. Preparation of Surface-functionalized Graphene and Its Influence on the Mechanical Properties of Nanocomposite Materials,TB332
  11. Preperation of Low Friction and Wear Resistant High-Purity Alumina Ceramic,TQ174.1
  12. The Study of Forming Process and Properties of PTT/PET Skin-Core Composite Monofilament with Large Diameter,TQ340.64
  13. Study on the Synthesis and Properties of Organic Silicone Modified Waterborne Polyurethane,TQ323.8
  14. Research on Structure and Mechanical Property of Hook and Loop Fastener,TE931.2
  15. Rolled Mg-Zn-Ce-Zr (Mn) alloy microstructure and mechanical properties of,TG339
  16. Simulated lunar ambient temperature magnesium alloy microstructure and mechanical properties of,TG146.22
  17. Shanghai Comprehensive Test of mechanical properties of clay and constitutive modeling,TU411.3
  18. A Study on the Fullerene Nanocomposites,TB383.1
  19. Triple-Wire High Speed GMAW Butt Joint Welding Process of Marine E Grade Steel,TG457.11
  20. VARTM with a flame retardant unsaturated polyester resin of,TQ323.41

CLC: > Industrial Technology > Chemical Industry > Synthetic resins and plastics industry > Polymer resin and plastic > Polyolefin plastic > Polypropylene
© 2012 www.DissertationTopic.Net  Mobile