Abstract
Polymeric packaging materials are one of the factors of environmental pollution. Reducing the environmental burden is possible by increasing the environmental friendliness of packaging materials. In this work, we study polymer films based on polyvinyl chloride (PVC) with a copolymer of 3-hydroxybutyrate with 3-hydroxyhexanoate P (3-GB) (3-GG) with different component ratios. The process of processing blends in the process of obtaining a packaging film is considered. The optical characteristics of the obtained films are determined. Thermal analysis of the obtained films was carried out using the differential scanning calorimetry (DSC), TGA, and thermomechanical analysis (TMA) methods. The degree of gelling of the resulting mixture was determined. It is shown that PHB has miscibility with PVC.
Highlights
Over the past fifteen years, the share of polymeric materials in the production of packaging for food, pharmaceuticals and consumer goods has grown from 17% up to 32%
All blends containing PHB showed the effect of accelerating the shear melting of polyvinyl chloride (PVC) particles and greater melt elasticity, which shows the effectiveness of PHB as a processing additive [21]
One of the most important parameters of this blend is the increase of the environmental friendliness of its products [26]
Summary
Over the past fifteen years, the share of polymeric materials in the production of packaging for food, pharmaceuticals and consumer goods has grown from 17% up to 32%. The main polymers for packaging are polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS), and polyethylene terephthalate (PET). These materials have high barrier properties, transparency, strength, and inertness with respect to packaged products. Polymer materials, replacing paper and cardboard packaging, allowed us to increase the shelf life and the radius of transportation of most food and pharmaceutical products [1]. Polyethylene, polypropylene, and polyvinyl chloride represent about 60% of total plastic volume for household goods, medical equipment, leisure products, and other major applications [2]. Each person consumes approximately 0.3 kg of plastic per day
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