Influence of the source of starch and plasticizers on the environmental
The type of starch and plasticizer significantly influenced the environmental load of the production of the composites. The main drivers of these differences were the multiple agricultural practices, such as irrigation and fertilization, and the crop efficiency for starch extraction.
Influence of the source of starch and plasticizers on the environmental
The choice of starch source and plasticizer in biocomposites was assessed using LCA. Composites were reinforced with Brazil nut waste, a sustainable source of fibers. Starch-based biocomposites are less impacting than PLA and PP based composites. The source of starch and plasticizer influences on most impact categories.
A review of biodegradable thermoplastic starches, their blends and
View PDF Version Previous Article Next Article Previous Article Next Article
Green Nanocomposites Based on Thermoplastic Starch: A Review - MDPI
One of the principal industrial applications of starch is plastics when transformed into TPS. It has been developed under specific heat, pressure, and moisture conditions to overcome the impossibility of processing the granular starch using traditional plastic methods.
Structural and Thermal Properties of Starch Plasticized with Glycerol
The influence of the urea use in the starch plasticizing system on the thermal properties of the obtained TPS granulate was discussed based on the thermogravimetric analysis (TGA). Experimental Materials Potato starch (Trzemeszno, Poland) containing about 20% amylose and moisture content of about 16% was used for the research.
- Does glycerol-plasticized starch affect the environmental impact of co-plasticizing starch?
- This study showed the environmental impacts of co-plasticizing starch over glycerol-plasticized starch in developing starch-based biodegradable plastic. It was evident that succinic anhydride and citric acid, as co-plasticizers, showed a comparable environmental impact to glycerol as a plasticizer for the plasticization processes in LCA analysis.
- Is corn starch a plasticizer?
- This LCA study aims to evaluate the environmental effect of producing plasticized starches through co-plasticization and compare them with commercial plasticizer glycerol. In this LCA analysis, corn starch was considered a starch source and glycerol as a common plasticizer.
- What factors affect the properties of a starch film?
- vegetal source, degree of maturity of the vegetal during the extraction of starch, purity of starch, amylose:amylopectin ratio), the interactions with the plasticizer occur differently, leading to variations in the properties of the films obtained from starches from different sources.
- What are the factors affecting plasticized starch development?
- The distribution of impact by raw materials, transport of raw materials, the total energy consumption during processing and the waste from processing that ends up in landfills during each plasticized starch development process.
- How does a plasticizer affect a starch molecule?
- Plasticizers enhance the mobility, elasticity, and processability of macromolecules . Adding a plasticizer to starch breaks hydrogen bonds, partially depolymerizes the starch, and lowers its melting temperature below the degradation point .
- Why is corn starch used as a co-plasticizer?
- The corn starch was chosen because it is a mass-produced and commercially available product in North America . The different co-plasticizer combinations were glycerol–urea, glycerol–citric acid, and glycerol–succinic anhydride, which were compared with glycerol. Starch plasticization and co-plasticization utilized melt extrusion.
