1,3-Butadiene, a major ingredient of synthetic rubber, has been shown to be carcinogenic in two animal species. To assess the possible human carcinogenicity of 1,3-butadiene, a critical review was undertaken of the epidemiologic literature. An early retrospective study of 8017 males employed in tire manufacturing found excess mortality for lymphatic and hematopoietic neoplasms in production wor...

A simple model is proposed to account for observed emissions of volatile organic compounds (VOCs) from new carpets. The model assumes that the VOCs originate predominantly in a uniform slab of polymer backing material. Parameters for the model (the initial concentration of a VOC in the polymer, a diffusion coefficient and an equilibrium polymer/air partition coefficient) are obtained from exper...

Up-to-date predictive rubber friction models require viscoelastic modulus information; thus, the accurate representation of storage and loss components is fundamental. This study presents two separate empirical formulations for complex moduli materials such as rubber. The majority found in literature are based on tabulated dynamic testing data. A wide range experimentally obtained used this stu...

effect of partial natural rubber replaced with synthetic rubbers, styrene butadiene and cis butadiene, on failure and strength properties of bias tread nr/br based compound was studied by efficient and conventional sulfur curing systems and mixtures of different carbon black grades. it was observed that failure behavior comprising tear resistance and crack growth in substituted compounds droppe...

Potassium ion batteries (KIBs) are emerging notably due to the reversible K+ intercalation into graphite. So far, optimization of graphite electrode formulation remains, however, be investigated. This work thus proposes optimize ionic (porosity) and electronic percolation networks as well mechanical properties electrodes for KIBs. To do so, carbon black amount (CB) calendering is first adjusted...

Modified starch was prepared in this work by acid-thinning and oxidizing corn starch with ammonium persulfate. Also, starch-based aqueous polymer isocyanate (API) wood adhesive was prepared. The effect of the added amount of modified starch, styrene butadiene rubber (SBR), polymeric diphenylmethane diisocyanate (P-MDI), and the mass concentration of polyvinyl alcohol (PVOH) on the bonding stren...

The structure of silica particles network in two different solution styrene-butadiene rubbers (S-SBR) was studied by means of small angle x-ray scattering (SAXS) and atomic force microscopy (AFM). S-SBR compounds with different silica contents were analyzed in comparison with their oil extended counterparts. A study into the application of Small-Angle X-Ray Scattering experiments was defined in...

Two materials were used, like graphene oxide nanosheets (GOn) and ferromagnetic nanoparticles (Fe3O4), to attenuate the electromagnetic (EM) properties in blend hybrid nanocomposites based on styrene-butadiene rubber (SBR) polyvinylidene difluoride (PVDF) as matrix. The rationale behind using either a ferroelectric or nanofillers Fe3O4 combination with intrinsically conducting (graphene oxide) ...

Polymer modified asphalt (PMA) mixtures are commonly employed in flexible pavement and overlays with large traffic volumes. In contrast, a number of laboratory field tests have been conducted to evaluate the performance PMA that conventional hot mix (HMA) mixtures. This paper presents an overview various polymers utilised their effects on rheological, morphological, physical, mechanical propert...

Styrene-butadiene (SBR) and acrylonitrile-butadiene (NBR) rubber blends with tetramethyl thiuram disulfide (TMTD) monosulfide (TMTS) accelerators environmentally friendly plasticizers, obtained from PET recycling biobased resources (LA/PG/PET/EG/LA), were prepared. The mechanical properties of the products tested compared those commercial dioctyl terephthalate (DOTP). TMTS was prepared by simpl...