|
||
| Journals and Publications |
|
AbstractEffects of Silane on Properties of Silica Filled Natural rubber Compounds The Mooney viscosity and cure properties of some conventional accelerator/sulphur compounds of natural rubber containing, respectively, 10, 30 or 60 parts per hundred rubber by weight (p.p.h.r.) precipitated amorphous white silica were measured. The compounds also contained no silane, and different amounts of bis(3-triethoxysilypropyl-) tertrasulphane bifunctional organosilane. The viscosities of the compounds with 60 p.p.h.r. and 30 p.p.h.r. silica reduced substantially when 7 p.p.h.r. and 1.5 p.p.h.r. were added, respectively. The viscosity of the mix with 10 p.p.h.r. silica decreased only slightly as the dosage of silane was raised to 5 p.p.h.r. The shortest optimum cure times, t95, for the mixes with 60 p.p.h.r. and 30 p.p.h.r. silica, were recorded when 7 p.p.h.r. and 4 p.p.h.r. silane were added respectively, whereas, the cure time of the compound with 10 p.p.h.r. silica was little affected by the addition of up to 5 p.p.h.r. silane. The cure rate of the mixes with 60 p.p.h.r. and 30 p.p.h.r. silica, calculated from the cure rate index, accelerated significantly, when 7 p.p.h.r. and 4 p.p.h.r. silane were added, respectively. Interestingly, the cure rate of the mix with 10 p.p.h.r. silica, slowed down greatly as a result of introducing up to 5 p.p.h.r. silane.  |
|||
|
The Government and Malaysian Rubber Board shall not be liable for any loss or damage caused by the usage of any information obtained from this site. Malaysian Rubber Board 2002. All Rights Reserved. Best viewed with Internet Explorer 6.x browser.
|
||||