Contact angle measurements as a way to analyse synthetic rubber surfaces modified by chlorination

Martı́n-Martı́nez, José Miguel; Fernández-Garcı́a, Juan C.; Orgilés‐Barceló, A. César

doi:10.1163/156856192x00953

Cited by 17 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, during vulcanization, zinc oxide and stearic acid react to produce zinc stearate which also acts as an abhesive compound of R2 rubber. Although different surface treatments have been proposed to remove the adhesive compounds from the rubber surface, a progressive migration from the bulk to the rubber surface with time occurs [5,21]. Some properties of the R2 rubber were obtained using standardized procedures: hardness D 72 ± Shore A; density (20 ± C) D 1.1 g/cm 3 ; tensile strength D 11.4 MPa; maximum elongation-at-break D 612%; and tear resistance D 14.7 kN /m.…”

Section: Methodsmentioning

confidence: 99%

Weak boundary layers on vulcanized styrene–butadiene rubber treated with sulfuric acid

Cepeda-Jiménez¹,

Pastor-Blas²,

Martı́n-Martı́nez³

2001

Journal of Adhesion Science and Technology

View full text Add to dashboard Cite

A synthetic vulcanized styrene-butadiene rubber (R2) was used in this study. The presence of paraf n wax and zinc stearate in the rubber composition prevented the adhesion of R2 rubber to solvent-based polyester-urethane adhesive. To increase the adhesion properties of R2 rubber, a surface treatment with sulfuric acid (cyclization) was applied, and the length of the immersion in sulfuric acid and the time between the immersion time and the neutralization were varied. The treated R2 rubber surfaces were characterized using ATR-IR spectroscopy, contact angle measurements (water, ethanediol), and scanning electron microscopy (SEM). The mechanical properties of the treated rubber were obtained from stress-strain experiments. The joint strength was obtained from the T-peel test on treated R2 rubber/ polyurethane adhesive joints. Due to the penetration of the sulfuric acid into the R2 rubber bulk, the mechanical properties decreased. The treatment with sulfuric acid produced several chemical modi cations on the rubber surface: sulfonation of the butadiene and the creation of C C and C O bonds. Furthermore, the surface treatment of the R2 rubber with sulfuric acid removes paraf n wax from the rubber surface, which had a bene cial effect on adhesion to the polyurethane adhesive. To remove the wax layer, the surface was wiped with petroleum ether solvent after treating the R2 rubber with sulfuric acid. However, in some experiments a progressive migration of wax from the R2 rubber bulk to the surface with time happened. The migration of wax was prevented by increasing the immersion time in H 2 SO 4 by more than 5 min.

show abstract

Section: Methodsmentioning

confidence: 99%

Weak boundary layers on vulcanized styrene–butadiene rubber treated with sulfuric acid

Cepeda-Jiménez¹,

Pastor-Blas²,

Martı́n-Martı́nez³

2001

Journal of Adhesion Science and Technology

View full text Add to dashboard Cite

show abstract

“…1 However, it is commonly known that direct adhesion between cross-linked rubbers without treatment of the rubber surfaces is quite difficult due to the restricted polymer-chain mobility on account of cross-linking, [1][2][3][4][5] and therefore, it is not surprising that pretreatment methods for rubber-surface modifications and adhesive technology have been widely studied. 1,[6][7][8][9][10][11][12][13] Nonetheless, repair processes, such as tyre retreading, for cured rubber products that involve an adhesion process between cross-linked rubbers are still limited given several issues with the processes, including curing temperature and time. [14][15][16][17][18] To develop a more efficient adhesion system, it is important to induce the interdiffusion of polymer chains between two cured rubber samples during an adhesion process, such as heat-pressing, followed by interlinkage between the two rubber samples after cooling.…”

Section: Introductionmentioning

confidence: 99%

Tough tetrazine-functionalized styrene–butadiene rubber with self-adhesion through zinc–nitrogen coordination

Kotani,

Tsunoda,

Otsuka

2023

RSC Appl. Polym.

View full text Add to dashboard Cite

show abstract

“…The gluing of elastomers, such as styrene–butadiene–styrene (SBS) copolymers, to other materials makes an especially important problem in diverse branches of industry. It is obvious that in this case the strength of adhesive‐bonded joints depends in great part on the chemical structure of the elastomer surfaces and, therefore, can be controlled by various chemical treatments 1, 2. In recent years, some efforts have been undertaken to utilize plasma treatments in the place of the wet chemical modification of SBS elastomers, which is a common method for improving their adhesion to polyurethane (PU) adhesives—the most popular adhesives used for the gluing of SBS products.…”

Section: Introductionmentioning

confidence: 99%

Comparison Between Non‐equilibrium Atmospheric‐Pressure and Low‐Pressure Plasma Treatments of Poly(styrene–butadiene–styrene) Elastomers

Tyczkowski

Zieliński

Kopa

et al. 2009

Plasma Processes & Polymers

View full text Add to dashboard Cite

Low‐pressure plasma generated in a typical parallel plate reactor and atmospheric pressure plasma produced by a plasma needle were utilized to modify the surface of poly(styrene–butadiene–styrene) (SBS) elastomers. An RF discharge (13.56 MHz) in helium was used in the both cases. The SBS surfaces were investigated by T‐peel tests, contact‐angle measurements, and IRS–FTIR spectroscopy. It has been found that such plasma treatments drastically improve the strength of adhesive‐bonded joints between the SBS surfaces and polyurethane adhesives, however, the plasma needle operation has turned out to be more effective. The molecular processes proceeding on the SBS surfaces have been briefly discussed.

show abstract

Contact angle measurements as a way to analyse synthetic rubber surfaces modified by chlorination

Cited by 17 publications

References 0 publications

Weak boundary layers on vulcanized styrene–butadiene rubber treated with sulfuric acid

Weak boundary layers on vulcanized styrene–butadiene rubber treated with sulfuric acid

Tough tetrazine-functionalized styrene–butadiene rubber with self-adhesion through zinc–nitrogen coordination

Comparison Between Non‐equilibrium Atmospheric‐Pressure and Low‐Pressure Plasma Treatments of Poly(styrene–butadiene–styrene) Elastomers

Contact Info

Product

Resources

About