Exploiting epoxidized natural rubber latex (ENRL) as a starting raw material for latex-based products

2017 ◽  
Author(s):  
M. Siti Nor Qamarina ◽  
M. R. Fatimah Rubaizah ◽  
A. Nurul Suhaira ◽  
M. Y. Norhanifah
Keyword(s):  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Raw Material ◽  
Epoxidized Natural Rubber ◽  
Rubber Latex

Mechanical Properties of Natural Rubber and Chloroprene Rubber Latex Blends

2011 ◽  
Vol 239-242 ◽  
pp. 1601-1604 ◽  
Author(s):  
Xiao Xue Liao ◽  
Hai Sheng Tan ◽  
Ming Chao Luo ◽  
Bing Tang ◽  
Shuang Quan Liao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Physical And Mechanical Properties ◽  
Epoxidized Natural Rubber ◽  
Latex Film ◽  
Rubber Latex ◽  
Oil Resistance ◽  
Chloroprene Rubber

The effects of the ratios of natural rubber latex (NRL)and chloroprene rubber latex(CRL) and the type of compatibilizer on physical and mechanical properties of latex film were researched.The oil resistance of vulcanized latex film was tested. The compatibility of the latex blends was also analyzed by TG/DTG method.The results showed that properties of latex film were best when ratio of NRL/CRL was 75/25. As the CRL content increased, oil resistance of latex film was improved. Epoxidized natural rubber latex improved compatibility of NRL and CRL blends.

scholarly journals Development of Particleboard from Green Coconut Waste

2021 ◽  
Vol 2120 (1) ◽  
pp. 012034
Author(s):  
J X Lim ◽  
T K Ong ◽  
C K Ng ◽  
I W Chua ◽  
Y B Lee ◽  
...  
Keyword(s):  
Natural Rubber ◽  
Water Resistance ◽  
Urea Formaldehyde ◽  
Natural Rubber Latex ◽  
Modulus Of Rupture ◽  
Epoxidized Natural Rubber ◽  
Thickness Swelling ◽  
Rubber Latex ◽  
Three Samples ◽  
Coconut Fibre

Abstract In this study, green coconut waste was successfully transformed into coconut fibre-based particleboards. In addition to urea-formaldehyde (UF), two types of green binder: BST00 (low ammoniated latex and epoxidized natural rubber latex-based) and BST20 (epoxidized natural rubber latex-based) were used in particleboard fabrication. The particleboards were fabricated using coconut pith and fibre with 15% binder loading through two pre-compression steps followed by a final hot compression at 140 °C for 15 mins at ∼2.1 MPa. Board properties such as density, thickness swelling (TS), water absorption (WA), and internal bond (IB) strength were determined in accordance with JIS A 5908 standard, except for modulus of rupture (MOR) (ASTM D1037). BST00-bonded particleboards exhibit the poorest properties among the three samples, making BST00 the least effective binder. BST20-bonded particleboards show the best overall properties with the highest density of ∼1 g/cm3, IB value of 0.416 MPa, MOR of 11.61 MPa, best water resistance with TS of 14% and WA of 24%. The UF-bonded particleboards have the highest MOR of 12.05 MPa. Overall, the UF- and BST20-bonded coir particleboards met the minimum JIS A 5908 requirement except density (0.4-0.9 g/cm3) and TS (<12%). The green binder BST20 has shown great potential to replace UF.

Assessing biodegradability of epoxidized natural rubber latex

2021 ◽  
Author(s):  
A. H. Aziana ◽  
M. S. Shabinah Filza ◽  
R. Roslim ◽  
M. R. Fatimah Rubaizah
Keyword(s):  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Epoxidized Natural Rubber ◽  
Rubber Latex

Evaluation of Epoxidized Natural Rubber Latex Based Pressure Sensitive Adhesives Containing Hydrocarbon and Rosin Ester Tackifier Dispersions on Adhesive Properties

2013 ◽  
Vol 845 ◽  
pp. 189-193
Author(s):  
Abu Bakar Rohani ◽  
S. Manroshan ◽  
V. Devaraj
Keyword(s):  
Natural Rubber ◽  
Membrane Separation ◽  
Natural Rubber Latex ◽  
Epoxidized Natural Rubber ◽  
Rubber Latex ◽  
Adhesive Properties ◽  
Pressure Sensitive Adhesives ◽  
Pressure Sensitive ◽  
Peel Adhesion ◽  
Rosin Ester

Epoxidized natural rubber latex with 50 mole % epoxidization referred to as ENR50 L was produced by in situ generated peracids. ENR50 L was subsequently concentrated to ENR50 L concentrate (ENR50 LC)viaultrafiltration membrane separation process. Both, ENR50 Latices (ENR50 L and ENR50 LC) were evaluated for the formulation of latex-based pressure sensitive adhesives (PSAs). In this work, evaluation of hydrocarbon and rosin ester tackifier dispersions in ENR50 Latices - based PSAs were performed through viscosity and peel adhesion test. The viscosity of latex-based PSAs containing hydrocarbon tackifier increased with increasing level of ENR50 Latices. However, the trend for latex-based PSAs containing rosin ester tackifier was inversely proportional to the level of ENR50 Latices. The peel adhesion of ENR50 Latices - based PSAs containing hydrocarbon tackifier was found greater than that of ENR50 Latices based PSAs containing rosin ester tackifier. Furthermore, the peel adhesion of ENR50 LC based PSAs was marginally higher than ENR50 L based PSAs.

Effect of Bio Fillers on Mechanical Properties of Natural Rubber Latex Films

2019 ◽  
Vol 797 ◽  
pp. 249-254
Author(s):  
Haslilywaty Ghani ◽  
Siti Fatma Abd Karim ◽  
Roslim Ramli ◽  
Mohibah Musa ◽  
Jefri Jaapar
Keyword(s):  
Tensile Stress ◽  
Natural Rubber ◽  
Natural Rubber Latex ◽  
Maximum Load ◽  
Raw Material ◽  
Rubber Latex ◽  
Tear Strength ◽  
Blending Method ◽  
Dipping Process ◽  
The Impact

Rubber industry is one of major raw material for many industries around the world. Therefore, supplying quality raw material is major concern among the market player. The objectives of this paper is to formulate natural rubber latex (NRL) by addition of bio fillers and to determine the impact of bio fillers (rice husk ash and tacca starch) towards the tear strength and tensile strength of the film samples. Normally, filler compounded in NRL named carbon black filler is chemical based, expensive and difficult to handle. Blending method was applied whereby named as compounding process. The vulcanized NRL was blended with the bio fillers before manual dipping process applied to obtain the film. The bio filler loaded was 10 phr and 30 phr. The optimum concentration was found to be 10 phr of tacca starch, producing tensile stress at maximum load was 18 Mpa while elongation at break was 650%. In addition, tensile stress at 300 mm elongation was 2 Mpa and tear strength is 15 N/mm.

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