Crumb rubber is a commodity made by re-processing (shredding) disposed automobile tires. This article presents a new technology development on the application of crumb rubber in highway noise reduction systems. Advantages and disadvantages of two commonly used manufacturing processes (molding and spray) of crumb rubber panels are analyzed. It is shown that for the intended application, a sprayi...

In any type of rubber product manufacturing (including tires), the primary concerns are environmental. The aim of the present study was to survey a treatment combination of ozonation and physicochemical processes in the rubber industry. Wastewater samples were collected from the discharge unit of the rubber processing sewage system in Kerman Barez Tire Factory, Kerman, Iran. The wastewater samp...

An indication that paraphenylenediamine (PPD) sensitivity might point to a rubber dermatitis was found in a report by Sidi and Dobkevitch-Morrill (1). These authors described six eases of rubber dermatitis, five of whom showed 1 to 3 plus patch test reactions to PPD. In addition and fairly often, positive patch tests have been obtained to rubber with negative tests to monobenzyl ether of hydroq...

Mixing rubber in an internal mixer is a complex nonlinear process in which viscosity of the rubber is one of the key quantities concerning end product quality. Since viscosity can’t be measured online, soft sensor methods for modelling viscosity are investigated to establish an online control of viscosity. This paper presents a black-box approach to modelling viscosity using an adaptive neuro-f...

Fatigue life prediction and evaluation are the key technologies to assure the safety and reliability of automotive rubber components. The objective of this study is to develop the fatigue analysis process for vulcanized rubber components, which is applicable to predict fatigue life at initial product design step. Fatigue life prediction methodology of vulcanized natural rubber was proposed by i...

In the article, it was determined that furan oligomer added to composition causes additional structuring in process of vulcanization, and as a result, density hardness vulcanization network composite increases, value relative length decreases. It shown optimal amount oligomers rubber compounds is equal 10 weight units per 100 rubber. With inclusion secondary product acetylene production elastom...

The stems and roots of the semiarid shrub guayule, Parthenium argentatum, contain a significant amount of natural rubber. Rubber accumulates in guayule when plants are vegetatively and reproductively dormant, complicating the relationship between growth/reproduction and product synthesis. To evaluate the factors regulating the partitioning of carbon to rubber, carbon assimilation and partitioni...

Clwyd Compounders is part of a European consortium that has developed a novel accelerator as a potential alternative to ethyl thiourea (ETU), a material which has been identified as toxic to reproduction and a possible carcinogen. This paper follows on from the SafeRubber project; and aims to explore the potential of the accelerator SRM102 in compounding both general-purpose and high-performanc...

Automobile shredder residue (ASR) was pretreated to improve its quality for fuel utilization. Composition analysis revealed that ASR components could be classified into four groups: (1) urethane and textile-light fraction and combustibles containing low levels of ash and Cl; (2) plastics and rubber-light or heavy fraction and combustibles containing high levels of Cl; (3) metals and electrical ...