Speciality rubber latex foam: Foamability study and fabrication process (Record no. 74960)

MARC details
000 -LEADER
fixed length control field 02215nam a22002057a 4500
100 ## - MAIN ENTRY--AUTHOR NAME
Personal name Ramli, R
245 ## - TITLE STATEMENT
Title Speciality rubber latex foam: Foamability study and fabrication process
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Name of publisher Rubber Chemistry and Technology, 95(3): 492-513.
Year of publication 2022
300 ## - PHYSICAL DESCRIPTION
Other physical details July-September
520 ## - SUMMARY, ETC.
Summary, etc Specialty natural rubber (SpNR) latex, namely, deproteinized natural rubber (DPNR) latex and epoxidized natural rubber (ENR) latex, has been produced to meet specific product's requirements. However, SpNR is normally used in the form of block rubber to manufacture dry rubber products such as tires and automotive parts. The applications of SpNR latex into latex foam products will be diversified. Findings indicate that foamability of SpNR latex is lower compared to normal latex (LATZ) but shows longer stability time after foamed. Findings also indicate that foam collapse and foam coagulate are two main challenges in the fabrication process of SpNR latex foam. Despite these challenges, SpNR latex foam can be fabricated at different density levels. During the foaming process, additional foaming agent is required to fabricate a SpNR latex foam, which is different from fabricating a normal NR latex foam, especially at low latex foam density. Consequently, a higher level of sodium silicofluoride, used as the gelling agent, is required to set the cell structure of the foam. Findings also indicate that foam density influenced the gelling time and volume shrinkage of the SpNR latex foam. An ideal compounding, foaming, and gelling formulation to fabricate SpNR latex foam via Dunlop batch foaming process has been developed. Morphological study showed that all latex foams are open-cell structure, with lower density foam exhibiting higher porosity and mean pore size. Comparison on hysteresis behavior between DPNR and ENR latex foam indicated that ENR latex foam exhibits higher hysteresis loss ratio compared to DPNR latex foam.
650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical Term Natural rubber latex foam
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Topical Term Fabrication
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Chai, A.B
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Ho, J.H
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Kamaruddin, S
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name Mohd Rasdi, F.R
700 ## - ADDED ENTRY--PERSONAL NAME
Personal name De Focatis, D.S.A
856 ## - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier https://doi.org/10.5254/rct.21.78938
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Journals
Holdings
Withdrawn status Lost status Damaged status Not for loan Home library Current library Date acquired Koha item type
        RRII Library RRII Library 23/02/2023 Journals