Hydrophobic and Bulk Polymerizable Protein-Based Elastomers
Numerous cereal and vegetable proteins (such as corn zein, wheat gluten, and soy proteins) and animal proteins (such as milk proteins, collagen, gelatin, keratin, and myofibril-lar...
Phase separation of plasticizers in thermally aggregated protein‐based
show great potential as a low-cost bioresource when look - ing for sustainable alternatives to petroleum-based plastics. Some biomass-based bioplastics can directly be converted to plastic materials, without energy-intensive fermentation or polymerization steps and have shown great potential from a sustainability point of view.[1]
Hydrophobic and bulk polymerizable protein-based elastomers
The surfactant of choice, benzalkonium chloride (BAC), has a low melting point and is able to plasticize the protein. The dual role of surfactant as both compatibilizer and plasticizer critically enables solvent-free melt polymerization of the protein-based copolymers and the preparation of moldable thermosets.
Plasticizers for Protein‐Based Materials
There are numerous reports on plasticized protein‐based films, including matrices from plants such as soy, pea, sunflower, and wheat proteins and zein [5]. Animal‐based protein matrices include sodium caseinate, keratin, gelatin, collagen, and whey and myofibrillar proteins.
Bioplastics for a circular economy | Nature Reviews Materials
Low oil prices, narrow profit margins and existing fossil-fuel subsidies reduce the cost-competitiveness of bio-based manufacturers, which represent a fragmented market of small entities and
- What are natural based plasticizers?
- Nowadays, there is increasing interest in the use of natural-based plasticizers that are characterized by low toxicity and low migration. This group includes epoxidized triglyceride vegetable oils from soybean oil, linseed oil, castor-oil, sunflower oil, and fatty acid esters (FAEs) .
- What are biodegradable plasticizers?
- Biodegradable plasticizers such as soybean oil (SO), epoxidized soybean oil (ESO), dibutyl phthalate (DBP) and triethyl citrate (TEC) were added to poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) films, enhancing their thermal and mechanical properties. TEC or DBP presented better plasticizing effects than SO and ESO for PHBV .
- What is a plasticizer in chemistry?
- The council of the IUPAC (International Union of Pure and Applied Chemistry) defined a plasticizer as “a substance or material incorporated in a material (usually a plastic or elastomer) to increase its flexibility, workability, or distensibility”.
- Can bio-based plasticizers replace conventional plastic goods?
- The challenge to implement this new class of natural-based plasticizers matches the increasing interest of material researchers and industries in new bio-based materials, made from renewable resources with the potential, not to totally replace but to reduce the use of conventional plastic goods.
- What types of plasticizers are used in hydrophilic polymers?
- In addition to water, the most commonly used plasticizers are polyols, mono-, di- and oligosaccharides. Polyols have been found to be particularly effective for use in plasticized hydrophilic polymers .
- Which compounds are used in plasticizers for sunflower protein isolate films?
- The use of five compounds (GLY, EG, DEG, TEG and PG) as plasticizers for sunflower protein isolate films, producing soft, brown and smooth films, with good mechanical properties and a high level of impermeability to water vapor .
