Nowadays, adhesive industry is growing, and its development will be important in a short future because it offers good returns, and in some cases it is a better option for packaging and sealing with advantages in prices, productivity and weight reduction. In terms of joining and/or sealing, adhesives are well positioned among joining systems; however, knowledge about adhesives is need for their efficient use and only through proper design of the union can be achieved satisfactory results. In this chapter, a development of a formulation of pressure-sensitive adhesive based on styrenebutadiene copolymers using a reactive resin is reported. Non-aromatic solvents were used in adhesive formulation with the aim of avoiding the emission of harmful solvents into the Atmosphere, and the adequate combination and amount of solvents were found. The effect of addition of a phenolic resin in the adhesive formulation as a crosslinking agent was evaluated. By means Fourier Transform Infrared spectroscopy (FTIR), the crosslinking reaction was also studied. The performance of adhesive formulation was evaluated by means of dynamic mechanical analysis (DMA).

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Asphalt is an important material for road construction and other applications. That is why it is done the search for materials that in combination with the asphalt generate a product of better quality, lower environmental impacts and low costs, thus allowing to be reflected greater resistance of the asphalt to the extreme climatic conditions and traffic. To cover these different needs, asphalts with a better performance must be counted, having to modify their chemical, physical and rheological properties, in order to improve their behavior to the shearing, deformation, fatigue, ageing, elasticity, etc. In this work, studied the effect of adding composite materials with polymer of the type SBS lineal (Styrene-butadiene-styrene) and the feather of chicken, taking concentrations of 1, 3 and 5 PHR (parts per hundred of rubber) in ratios of 2, 4 and 6% in relation to the weight of asphalt. Techniques were applied to characterize such as dynamic viscosity, softening point, phase separation characterization, penetration index and fluorescent microscopy. As a result, using a polymer of the linear SBS type incorporating keratin from the chicken plume as reinforcement for the asphalt does not present interesting results for application areas such as where high fluidity is required.

Adhesion refers to a complicated set of interconnected phenomena that is not easy to understand, and by means several semi-empirical tests try to be predicted the strength of an isolated adhesive joint or the strength of a more complex structure, such a laminate, of a fiberreinforcer of particle-filled composite [2]. Adhesives are classified according with common characteristics to facilitate their understanding and use, although no one classification is universally recognized. Classifications include source, function, chemical composition, physical form and application. Within the most used adhesive are natural or synthetic rubber-based materials, usually due its good properties. Based solvent technology in adhesive is one of the most used for wood industry, mainly Polychloroprene, which has high temperature resistance and good paste strength. However, for halogenated compounds generated and for marketing strategy, this material is intended to be replaced by Styrene-Butadiene rubber (SBR) and Styrene-Butadiene-Styrene (SBS) copolymers, and Styrene-butadiene-Ethylene-Styrene (SEBS).