Hydrolysates of Sulphur-containing Polypeptides (Keratins) as New Ingredients for Polymeric Composite Materials

Abstract

In the creation of new polymeric composite materials, the use of biologically active substances, e.g. the hydrolysis products of keratin-containing proteins of different structure, is promising. The possibility of using keratin hydrolysates as modifying additives for improving different properties of various elastomer composites is shown. These are vulcanising agents and vulcanisation accelerators for composite materials based on synthetic polyisoprene; secondary vulcanising agents for elastomer materials based on chlorine-containing rubbers; vulcanisation accelerators for composites. The use of these compounds makes it possible to remove from the composition of materials ecologically harmful components and ingredients that are produced from non-renewable sources of raw material, to solve a number of economic problems, associated, among other things, with the need for import replacement, and also to produce latex composites that in their properties approach latexes of natural rubber.

Microstructure of Filled Biocomposites Based on Polyolefin Blends

“…In turns, biofillers have several advantages, such as low densities, low cost, nonabrasive nature, and high biodegradability [4]. Different types of polymers and biobased fillers could be used for developing hybrid biobased composites with increased biodegradability [5,6]. In this work, microcrystalline cellulose was used as a biofiller for polymer matrix.…”

Polyfunctional Materials Based on Collagen Hydrolysate Obtained from Swim Bladders of Northern Fish Species

“…Collagen is the most abundant fibrillar protein in animal tissues [1]. There are many ways to process collagen-containing raw materials and obtain collagen preparations for use not only in medicine, but also in chemical industry [2][3][4][5][6][7]. It can be derived from several animal tissues [8,9].…”