Open AccessImprovements in filler dispersion and tensile properties of natural rubber vulcanizates applying lauryl alcohol
Author(s) -
Indra Surya,
Mimpin Ginting,
Vivi Purwandari
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1376/1/012031
Subject(s) - ultimate tensile strength , vulcanization , natural rubber , composite material , alcohol , filler (materials) , materials science , precipitated silica , tear resistance , dispersion (optics) , elongation , chemistry , organic chemistry , physics , optics
Lauryl alcohol as one type of fatty alcohols was used to raise degree of silica filler dispersion and also tensile properties of silica filled natural rubber (NR) applying a system of semi efficient vulcanization. The NR was reinforced by silica filler with a settled loading at thirty phr. The lauryl alcohol was incorporated into the silica filled NR at one, two, three and four phr. The results showed that lauryl alcohol expanded the time to scorch but reduced time to cure and minimum torque. Lauryl alcohol also reduced tensile modulus but expanded elongation at break. The other properties such as crosslink density, torque difference and tensile strength were expanded up to three phr of lauryl alcohol. The swelling properties confirmed that three phr of lauryl alcohol was an optimum concentration where silica filled NR vulcanizate with three phr of lauryl alcohol showed the highest tensile strength. As a plasticizing agent, lauryl alcohol expanded tensile strength by increasing the degree of silica dispersion.