Abstract:
The invention relates to a novel nanocomposite having improved processing characteristics. The nanocomposite comprises polyolefins and a nanofiller, selected from one or more of the group consisting of oxides of Si, Ti, Zr, Sn and Al. The dynamic viscosity of the nanocomposite including the nanofiller is lower than the dynamic viscosity of the nanocomposite without nanofiller.
Abstract:
The present invention relates to a PVC based nanocomposite resin composition with superior impact strength and a method for preparing the same. The method according to the present invention comprises the steps of: adding nano calcium carbonate and a lipophilic dispersing agent to a vinyl chloride monomer; adding the resultant mixture system to an aqueous solution system comprising deionized water, a suspension stabilizer and apolymerization initiator to prepare a suspension system and performing polymerization at an elevated temperature to prepare a PVC based nanocomposite resin composition; and processing the PVC based nanocomposite resin composition with at least one impact modifier selected from the group consisting of a methyl methacrylate-butadiene-styrene copolymer, an acrylic impact modifier and a chlorinated polyethylene. Preferably, the nano calcium carbonate is uniformly distributed in the vinyl chloride particles, so that improvement in impact strength and reduction of impact modifier required for processing the resin can be attained.
Abstract:
A method of forming carbon nanotube-filled composites using miniemulsion polymerization as shown in Figure 1. The carbon nanotubes are preferably single-walled carbon nanotubes. The carbon nanotubes are highly dispersed within and associated with the polymer comprising the composite.
Abstract:
Kompositmaterialien umfassend in Wasser schwerlösliche Calciumsalze wie z. B. Calcium-Phosphate und -Fluorophosphate, wobei die Calciumsalze in Form von nanopartikulären Teilchen mit einem mittleren Teilchendurchmesser im Bereich von 10 bis 300 nm vorliegen, und Proteinkomponenten ausgewählt aus Proteinen, Proteinhydrolysaten und Proteinhydrolysat-Derivaten eignen sich als remineralisierende Komponenten in Zusammensetzungen zur Reinigung und Pflege der Zähne sowie zur Förderung der Neubildung von Knochengewebe.
Abstract:
A method of manufacturing a thin film, including: mixing carbon nanofibers into an elastomer including an unsaturated bond or a group having affinity to the carbon nanolibers, and dispersing the carbon nanofibers by applying a shear force to obtain a carbon fiber composite material; mixing the carbon fiber composite material and a solvent to obtain a coating liquid; and applying the coating liquid to a substrate to form a thin film.
Abstract:
A field grading material includes a field grading effective amount of a nanoparticle filler distributed in a polymeric matrix, and the nanoparticle filler is heterogeneously distributed in the polymeric matrix.
Abstract:
Disclosed herein is an electrically conductive composition comprising an organic polymer; and a carbon nanotube composition, wherein the carbon nanotube composition comprises carbon nanotubes that can rope and have greater than or equal to about 0.1 wt % production related impurities, based on the total weight of the carbon nanotube composition, and wherein the composition has a bulk volume resistivity less than or equal to about 1012 ohm-cm, and a notched Izod impact strength of greater than or equal to about 5 kilojoules/square meter.
Abstract:
The invention relates to polymer-nanocomposite blends comprising at least two polymers and layered silicates which are delaminated in a nanodispersed manner and have advantageous properties. Also disclosed are methods for the production thereof. The inventive polymer-nanocomposite blends contain: a) 55 to 95 percent by weight of polyamide (PA); b) 4 to 40 percent by weight of polypropylene (PP); c) 1 to 9 percent by weight of nanodispersed layered silicates; and d) up to 10 percent by weight of carboxylated polyolefins, particularly ethylene copolymers comprising unsaturated carbonic acids, such that the percentage by weight of the respective compositions is always 100 percent. Optionally, common stabilizers and fillers can be added. The inventive nanocomposite blends are characterized by great stiffness in the freshly injected and conditioned state, reduced water absorption, improved thermooxidative stability, and no reduction of toughness.
Abstract:
Disclosed is a thermoplastic resin composition for automobile parts comprising a continuous phase composition including a thermoplastic polyamide resin and a disperse phase composition dispersed in the continuous phase composition, wherein the disperse phase composition includes a dynamically crosslinked acrylonitrile-butadiene rubber in which an acrylonitrile amount is 31 wt% or more and less than 55 wt%. The thermoplastic resin composition for automobile parts of the present invention has an excellent resistance to gas and moisture permeation, heat, oil, fuel oil, and the like.