Natural rubber latex membranes incorporated with three different types of propolis: Physical-chemistry and antimicrobial behaviours

2019 ◽  
Vol 97 ◽  
pp. 576-582 ◽  
Author(s):  
Daniela Cervelle Zancanela ◽  
Cristiano Soleo Funari ◽  
Rondinelli Donizetti Herculano ◽  
Vinicius Moreira Mello ◽  
Clenilson Martins Rodrigues ◽  
...  
Keyword(s):  
Physical Chemistry ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Rubber Latex ◽  
Different Types

Effect of Cleaning Agent on Tensile and Swelling Properties of Natural Rubber Latex Film

2013 ◽  
Vol 858 ◽  
pp. 46-51 ◽  
Author(s):  
Mufidah Md Sidek ◽  
A. Rashid Azura ◽  
Baharin Azahari
Keyword(s):  
Natural Rubber ◽  
Tensile Properties ◽  
Control Sample ◽  
Natural Rubber Latex ◽  
Latex Film ◽  
Rubber Latex ◽  
Swelling Properties ◽  
Cleaning Agent ◽  
Cleaning Agents ◽  
Different Types

The effect of different types and loading of cleaning agent on the tensile properties and swelling properties of natural rubber latex film were investigated. The aim for this study is to find the cleaning agent which is compatible with natural rubber latex with optimum loading. In this study, there are two different amine based cleaning agent used which are Monoethanolamine (MEA) and Di-(3-aminopropyl) ether of diethylene glycol (DG). Swelling test was done to support the tensile results. It is found that tensile properties of the sample with MEA cleaning agent is higher than control sample (without cleaning agent) and sample with DG cleaning agent. For the best cleaning agent compound, the different loading has been tested and results showed that optimum loading of cleaning agent are achieved at 5 phr. The effects of both types of cleaning agents and different loading of cleaning agents on tensile properties and swelling properties for cleaning mold application are discuss.

The Effects of Extraction Mediums on the Properties of Porous Epoxy Using Natural Rubber Latex as Void Template

2013 ◽  
Vol 795 ◽  
pp. 299-303
Author(s):  
S.N. Ishak ◽  
P.L. Teh ◽  
Du Ngoc Uy Lan ◽  
C.K. Yeoh ◽  
J.L. Phua
Keyword(s):  
Dielectric Constant ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Water Medium ◽  
Distilled Water ◽  
Rubber Latex ◽  
Constant Property ◽  
Latex Particles ◽  
Lower Dielectric Constant ◽  
Different Types

Porous epoxy was fabricated by using natural rubber latex particles as the void template which were extracted after by different types of extraction mediums such of distilled water and toluene under ultrasonic. As expected, the increase in latex content from 0.5, 1.0, 1.5 to 2.0 phr in porous epoxy produced the higher porosities as well as lower dielectric constant property. Furthermore, toluene medium extracted more NR latex particles and produced more porous in epoxy matrix compared to distilled water medium. Therefore, porous epoxy from toluene extraction exhibited better dielectric constant property, which is preferred for electronic packaging application. Besides that, the mechanical properties also showed a reasonable reduction in flexural strength and modulus of the epoxy porous obtained from toluene extraction compared to distilled water extraction.

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