The effect of carbon black and silica fillers on cure characteristics and mechanical properties of breaker compounds
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Date
2007
Authors
Yam, Kok Peng
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Journal ISSN
Volume Title
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Abstract
The reliability of a high performance steel belt tyre is significantly dependent
on the adhesion of steel reinforcement to rubber compound. Rubber compounds
used to coat on the steel belts was known as breaker compound. Rubber
compounds which were filled with different dosage of silica and carbon black was
prepared by using two roll mills and then were studied on cure characteristics,
mechanical properties and aging properties. On cure characteristics, higher loading
of carbon black had decreased the cure time and scorch time, higher value of MH,
ML and crosslink density. Silica fillers have increased scorch time, cure time,
S’@MH and crosslink density when used in the rubber compound. On the
mechanical properties, tensile strength and pull out force (SBAT) increased as the
amount of carbon black increased until a maximum value, after which the value
decreased. When silica added into the rubber compound system, it significantly
increased the pull out force but decreased after the optimum value achieved. After
aging process, aging retention of M300 and hardness increased, lower at EB and
SBAT values. Aging retention of tensile strength decreased except for those using
15phr silica.
Description
Master
Keywords
Chemical science , Carbon black , Silica fillers , Breaker compounds