Nanoparticle-Anchored Plasticizers - US EPA
TDA’s nanoparticles are designed to be inexpensive and attractive to the commodity polymer materials market. TDA scaled up production of nanoparticles from the gram to Pictured above is the device used to synthesize TDA’s nanoparticle-anchored plasticizers, which soften polyvinyl chloride (PVC), keep plastics soft longer, and do not escape.
Nanocomposite Anchored Plasticizers | Research Project
Nanocomposite Anchored Plasticizers EPA Contract Number:68D01045 Title:Nanocomposite Anchored Plasticizers Investigators:Myers, Andrew Small Business:TDA Research Inc. EPA Contact:Richards, April Phase:I Project Period:April 1, 2001 through September 1, 2001 Project Amount:$70,000
Pd Nanoparticles Anchored on Carbon Nanotubes/Covalent
Although there have been tremendous improvements in fabricating metal nanoparticle-functionalized two-dimensional (2D) heterogeneous materials, an effective strategy for loading ultrafine-sized metal nanoparticles with high catalytic performance and stability remains a challenge. Covalent organic frameworks (COFs) are a promising candidate template for the synthesis of decentralized metal
Final Report | Nanocomposite Anchored Plasticizers | Research
TDA has developed a nanoparticle technology that shows excellent dispersion and is easily processed using standard industrial melt-mixing methods. TDA’s nanoparticles are small (20-50 nm), flat, surface-modified inorganic particles that can be modified to be compatible in many thermoplastic and thermoset polymers.
Magnetite nanoparticle anchored graphene cathode enhances
(a) Amine functionalized magnetite nanoparticle (MNPs) synthesis, and (b) Reduced graphene oxide-magnetite nanoparticle (rGO-MNPs) coating on carbon felt electrode fabrication. SHE: standard hydrogen electrode. APTS- 3-aminopropyltrimethoxysilane; PBS-phosphate buffer saline, Amine—NH 2; GO—Graphene oxide. Download figure:
- Which polymers are plasticized?
- The plasticizers produced have been applied in 60 polymers and more than 30 groups of products. Industrially, the most common plasticized polymers are PVC, poly (vinyl butyral) (PVB), poly (vinyl acetate) (PVAc), acrylics, cellulose molding compounds, nylon, polyamides and certain copolyamides.
- 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 .
- 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 the molecular size of a plasticizer?
- Plasticizers are, in general, high boiling point liquids with average molecular weights of between 300 and 600, and linear or cyclic carbon chains (14–40 carbons) , . The low molecular size of a plasticizer allows it to occupy intermolecular spaces between polymer chains, reducing secondary forces among them.
- What are plasticizers used for?
- Plasticizers are an important class of low molecular weight non-volatile compounds that are widely used in polymer industries as additives . The primary role of such substances is to improve the flexibility and processability of polymers by lowering the second order transition temperature, the glass transition temperature (Tg).
