Tensile and Morphological Properties of Rice Husk Powder Filled Natural Rubber Latex Foam

Rice husk powder (RHP) is an abundant agricultural by product that is produced in bulk quantity as part of rice milling. This research is carried out to incorporate RHP with natural rubber latex (NRL) compound. Different loading of RHP is added to NRL compound and is foamed to make natural rubber latex foam (NRLF) using a well known technique called the Dunlop method. The tensile properties of modified NRLF is studied and compared with the controlled NRLF which has zero RHP loading. The morphology and micro structural characterization has been performed by Tabletop microscopy (TM1000). The tensile strength decreases at 2.5 pphr but increases again as the filler loading increases. Elongation at break decreases whereas modulus at 100% elongation (M 100) and hardness increases as the filler loading increases.

Download Full-text

Aqueous Dispersion of Rice Husk Powder as a Compatible Filler for Natural Rubber Latex Foam

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.626.530 ◽

2012 ◽

Vol 626 ◽

pp. 530-536 ◽

Cited By ~ 4

Author(s):

Shamala Ramasamy ◽

Hanafi Ismail ◽

Yamuna Munusamy

Keyword(s):

Particle Size ◽

Natural Rubber ◽

Rice Husk ◽

Agricultural Waste ◽

Natural Rubber Latex ◽

Aqueous Dispersion ◽

Silica Content ◽

Rubber Latex ◽

Particle Size Analyzer ◽

Acidic Nature

Rice husk powder (RHP) which is a fibrous agricultural waste is widely used as potential filler, novel adsorbent or coating for dry polymers. However, the compatibility of RHP with natural rubber latex (NRL) is yet to be studied. The main goal of this reported work was to create a method to incorporate RHP with NRL and achieve a compatible dispersion. However the amorphous silica content (acidic nature) in RHP makes it difficult to directly incorporate RHP to NRL compound. In this research, RHP was modified by adding ammonia, distilled water and dispersing agents to make an aqueous compatible alkaline dispersion for NRL. Also the particle size of RHP is reduced up to - 300micron to make it more compatible with the NRL. The compatibility of modified RHP is analyzed by sedimentation with time, particle size analyzer, pH and morphology study. The test results supports that modified RHP is more compatible with the NRL compound to obtain a stable foam in NRLF preparation.

Download Full-text

Low-temperature exfoliated graphene oxide incorporated with different types of natural rubber latex: Electrical and morphological properties and its capacitance performance

Ceramics International ◽

10.1016/j.ceramint.2019.11.005 ◽

2020 ◽

Vol 46 (5) ◽

pp. 5610-5622 ◽

Cited By ~ 2

Author(s):

M.D. Nurhafizah ◽

A.A. Aziz ◽

A.B. Suriani ◽

A. Mohamed ◽

T. Soga

Keyword(s):

Graphene Oxide ◽

Low Temperature ◽

Natural Rubber ◽

Natural Rubber Latex ◽

Morphological Properties ◽

Rubber Latex ◽

Exfoliated Graphene ◽

Capacitance Performance ◽

Different Types

Download Full-text

Effects of Hydrocolloid on Compression and Morphological Properties of Kenaf Filled Natural Rubber Latex Foam

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.694.50 ◽

2016 ◽

Vol 694 ◽

pp. 50-53 ◽

Cited By ~ 1

Author(s):

Ahmad Fikri Abdul Karim ◽

Hanafi Ismail ◽

Zulkifli Mohamad Ariff

Keyword(s):

Electron Microscope ◽

Scanning Electron Microscope ◽

Natural Rubber ◽

Compression Strength ◽

Corn Starch ◽

Natural Rubber Latex ◽

Morphological Properties ◽

Rubber Latex ◽

High Compression ◽

Scanning Electron

Corn starch has been used as hydrocolloids in kenaf filled natural rubber latex foam (NRLF). Kenaf filled NRLF was successfully prepared by using Dunlop method. This research was carried out to study the effects of hydrocolloid on compression and morphological properties of kenaf filled NRLF. From the graph of 50% compression, it was shown that kenaf filled NRLF with hydrocolloid has higher compression strength compared to kenaf filled NRLF without hydrocolloid. From the micrograph of Scanning Electron Microscope (SEM), it was observed that the pores size of kenaf filled NRLF with hdrocolloid was smaller than the pores size of kenaf filled NRLF without hydrocolloid. This showed the effect of hydrocolloid which contributes to the high compression strength.

Download Full-text