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
Nanoparticle-Anchored Plasticizers - US EPA
Plasticizers change the properties of a polymer by increasing the free volume between polymer chains, allowing more chain movement, which translates to more flexibility of the softened plastic. TDA has shown that plasticizers anchored to nanoparticles can soften PVC but cannot escape from the polymer. Although the nanoparticles resis-
Cu and Cu-Based Nanoparticles: Synthesis and Applications
The catalytic activity of nanoparticles (NPs) represents a rich resource for chemical processes, employed both in industry and in academia. (1, 2) NPs have applications in diverse fields, including energy conversion and storage, chemical manufacturing, biological applications, and environmental technology. (3, 4) The great interest in catalysis
Final Report | Nanocomposite Anchored Plasticizers | Research
If properly designed, the plasticizing nanoparticles would show good dispersion without the loss in physical properties observed with larger particle fillers. TDA Research, Inc. (TDA) has shown that plasticizers anchored on nanoparticles can soften PVC, but cannot escape from the polymer.
Table of Contents - New York University
implants. Research on nanoparticles includes exploring potential exposure routes: inhalation was the primary expo-sure route for classic particles, but nanoparticles do not aerosolize as readily so this route might be less likely.
- What is a nanoparticle in nanotoxicology?
- A nanoparticle in the context of nanotoxicology is often characterised as three-dinensional and with all dimensions less than 100 nm. Due to the high surface-to-volume ratio of the nanoparticles, the nanofillers are commonly dispersed within the polymer/matrix at a mass concentration typically between 0.1 and 10 wt.%.
- What is a high-aspect-ratio nanoparticle?
- High-aspect-ratio nanoparticles include nanotubes and nanowires, with various shapes, such as helices, zigzags, belts, or nanowires with diameter that varies with length. Small-aspect-ratio morphologies include spherical, oval, cubic, prism, helical, or pillar. Collections of many particles exist as powders, suspensions, or colloids.
- What are Ag nanoparticles used for?
- Currently, Ag nanoparticles are widely used for several applications due to their excellent thermal, electrical, optical, and, especially, antimicrobiological properties (Li et al., 2010). Apart from large aspect ratios, nanoparticles and aggregates of nanoparticles also possess high surface-to-volume ratios.
- 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) .
- 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 .
