scholarly journals Reinforced Thermoplastic Natural Rubber (TPNR) Composites with Different Types of Carbon Nanotubes (MWNTS)

10.5772/16494 ◽  
2011 ◽  
Author(s):  
Sahrim Hj. ◽  
Mouad. A. Tarawneh ◽  
S. Y. Yahya ◽  
Rozaidi Rasi
Keyword(s):  
Carbon Nanotubes ◽  
Natural Rubber ◽  
Different Types ◽  
Thermoplastic Natural Rubber

Tensile and Impact Properties of Thermoplastic Natural Rubber (TPNR) Filled with Carbon Nanotubes (MWNTs)

2010 ◽  
Author(s):  
Mou’ad. A. Tarawneh ◽  
Sahrim Hj. Ahmad ◽  
S. Y. Yahya ◽  
Rozaidi Rasid ◽  
Yew Chin Hock ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Natural Rubber ◽  
Impact Properties ◽  
Thermoplastic Natural Rubber

Effect of Modified Natural Rubber on Properties of Thermoplastic Natural Rubber Based on Co-Polyamide Blends

2012 ◽  
Vol 626 ◽  
pp. 233-236 ◽  
Author(s):  
Boripat Sripornsawat ◽  
Charoen Nakason ◽  
Azizon Kaesaman
Keyword(s):  
Natural Rubber ◽  
Interfacial Adhesion ◽  
Grain Morphology ◽  
Thermoplastic Elastomers ◽  
Morphological Properties ◽  
Oil Resistance ◽  
Different Types ◽  
Rubber Phase ◽  
Thermoplastic Natural Rubber ◽  
Good Set

Thermoplastic elastomers (TPEs) based on natural rubber (NR)/co-polyamine (COPA) blends with different types of NR (i.e., unmodified NR, MNR, ENR-30 and ENR-50) were prepared using simple blend technique. Mechanical, elastic, oil resistant and morphological properties were investigated. The main objective was to prepare TPEs based on NR with good set property and oil resistance. It was found that the blends with modified NRs exhibited higher moduli, tensile strength, oil resistance and elastic properties than the blend with NR. This is due to higher interaction between functional groups of modified NRs (i.e., ENR and MNR) and COPA. Furthermore, the blends using modified NRs showed finer grain morphology than the blend with NR. This may be caused by higher interfacial adhesion between rubber phase and COPA matrix.

Influence of Processing Oil and Plasticizer on Properties of ENR-25/TPU Simple Blends

2012 ◽  
Vol 626 ◽  
pp. 240-244
Author(s):  
Skulrat Pichaiyut ◽  
Charoen Nakason ◽  
Norbert Vennemann
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Glass Transition ◽  
Transition Temperature ◽  
Natural Rubber ◽  
Thermoplastic Polyurethane ◽  
Different Types ◽  
Tan Δ ◽  
Thermoplastic Natural Rubber ◽  
Paraffinic Oil

Thermoplastic natural rubber (TPNR) based on blending of thermoplastic polyurethane (TPU) and epoxidized natural rubber with 25 mol % epoxide (ENR-25) was prepared by simple blend technique. Influence of different types of plasticizer and processing oil (i.e., DOP, TDAE oil and Paraffinic oil) with a fixed loading level of 20 phr was investigated. The main aim was to improve elasticity and lowering the hardness of the blends. It was found that an incorporation of processing oil and plasticizer caused decreasing of mixing torque, mixing temperature, and mechanical properties in terms of tensile strength, and hardness. This is attributed to diffusion of oil or plasticizer molecules into ENR and TPU phases. The oil and plasticizer typically acts as lubricant to promote the ease of flow and influence on various properties. It was also found that an incorporation of processing oil and plasticizer caused decreasing of glass transition temperature (Tg) of rubber and TPU phases, tension set value and Tan δ which refer to greater rubber elasticity and tendency to recover to original shape after prolonged extension. Additionally, the blend with DOP exhibited superior mechanical and other related properties than those of the blends with TDAE oil and paraffinic oil, respectively.

scholarly journals Modified Nanoclays/Straw Fillers as Functional Additives of Natural Rubber Biocomposites

Polymers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 799
Author(s):  
Justyna Miedzianowska ◽  
Marcin Masłowski ◽  
Przemysław Rybiński ◽  
Krzysztof Strzelec
Keyword(s):  
Natural Rubber ◽  
Raw Materials ◽  
Research Work ◽  
Damping Properties ◽  
Main Research ◽  
Functional Additives ◽  
Different Types ◽  
Elastomeric Materials ◽  
Research Goal ◽  
The Impact

Increasingly, raw materials of natural origin are used as fillers in polymer composites. Such biocomposites have satisfactory properties. To ensure above-average functional properties, modifications of biofillers with other materials are also used. The presented research work aimed to produce and characterize elastomeric materials with a straw-based filler and four different types of montmorillonite. The main research goal was to obtain improved functional parameters of vulcanizates based on natural rubber. A series of composites filled with straw and certain types of modified and unmodified nano-clays in various ratios and amounts were prepared. Then, they were subjected to a series of tests to assess the impact of the hybrids used on the final product. It has been shown that the addition of optimal amounts of biofillers can, inter alia, increase the tensile strength of the composite, improve damping properties, extend the burning time of the material and affect the course of vulcanization or cross-linking density.

scholarly journals Composites from Thermoplastic Natural Rubber Reinforced Rubberwood Sawdust: Effects of Sawdust Size and Content on Thermal, Physical, and Mechanical Properties

2018 ◽  
Vol 2018 ◽  
pp. 1-11 ◽  
Author(s):  
Chatree Homkhiew ◽  
Surasit Rawangwong ◽  
Worapong Boonchouytan ◽  
Wiriya Thongruang ◽  
Thanate Ratanawilai
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Natural Rubber ◽  
High Density Polyethylene ◽  
High Performance ◽  
Physical And Mechanical Properties ◽  
Modulus Of Rupture ◽  
Shore Hardness ◽  
Thermoplastic Natural Rubber ◽  
Plastic Content

The aim of this work is to investigate the effects of rubberwood sawdust (RWS) size and content as well as the ratio of natural rubber (NR)/high-density polyethylene (HDPE) blend on properties of RWS reinforced thermoplastic natural rubber (TPNR) composites. The addition of RWS about 30–50 wt% improved the modulus of the rupture and tensile strength of TPNR composites blending with NR/HDPE ratios of 60/40 and 50/50. TPNR composites reinforced with RWS 80 mesh yielded better tensile strength and modulus of rupture than the composites with RWS 40 mesh. The TPNR/RWS composites with larger HDPE content gave higher tensile, flexural, and Shore hardness properties and thermal stability as well as lower water absorption. The TPNR/RWS composites with larger plastic content were therefore suggested for applications requiring high performance of thermal, physical, and mechanical properties.

Sign in / Sign up

Export Citation Format

Share Document