摘要:
Beads of expandable vinylaromatic polymers which comprise: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinylaromatic monomers and 0-50% by weight of at least one copolymerizable monomer; b) 1-10% by weight, calculated with respect to the polymer (a), of an expanding agent englobed in the polymeric matrix; c) 2 ppm-2% by weight, calculated with respect to the polymer (a), of an anti-lumping additive, distributed an the surface of the beads, comprising Oxides of metals of groups IB, IIB and VIIB.
摘要:
A method of manufacturing a flexible intrinsically antimicrobial absorbent porosic composite controlling for an effective pore size using removable pore-forming substances and physically incorporated, non-leaching antimicrobials. A flexible intrinsically antimicrobial absorbent porosic composite controlled for an effective pore size composited physically incorporated, high-surface area, non-leaching antimicrobials, optionally in which the physically incorporated non-leaching antimicrobial exposes nanopillars on its surface to enhance antimicrobial activity. A kit that enhances the effectiveness of the intrinsically antimicrobial absorbent porosic composite by storing the composite within an antimicrobial container.
摘要:
A fireproof material incorporating aerogel with an organic foam material and a method for making the same are provided. The method is carried out as follows: A. a mixed solution of a precursor and an organic solvent is added with an acid catalyst and becomes an anhydrous aerogel solution through hydrolysis; B. the anhydrous aerogel solution is added with an aqueous alkali catalyst solution and forms an aerogel solution through condensation; C. an organic foam material is impregnated with the aerogel solution such that aerogel is generated by gelation and is incorporated with the organic foam material, forming a three-dimensional reticular structure; and D. the organic foam material incorporated with the aerogel is dried and then shaped to produce a fireproof material. The fireproof material is highly proof against fire and can pass the limiting oxygen index test.
摘要:
The present invention relates to a polymeric composition which comprises: a) vinyl aromatic polymers and/or copolymers in an amount ranging from 50% to 99% by weight, calculated with respect to the overall composition, b) a polyolefin or a relative copolymer with an ester in an amount ranging from 1% to 50% by weight, calculated with respect to the overall composition, c) olefinic elastomer grafted with a.-vinyl aromatic polymer in an amount ranging from 0.01% to 40% by weight, calculated with respect to the sum of (a)+(b), d) an expanding agent in an amount ranging from 1% to 10% by weight, calculated with respect to the sum of (a)+(b)+(c).
摘要:
The present invention relates to a concentrated polymeric composition which comprises: a) vinyl aromatic polymers and/or copolymers in an amount ranging from 10% to 90% by weight, calculated with respect to the overall composition, with respect to the overall composition, b) at least one compound containing epoxy functional groups in an amount ranging from 0.01% to 5% by weight, calculated with respect to the overall composition, with respect to the overall composition, c) at least one infrared absorbing agent, in an amount ranging from 10% to 90% by weight, calculated with respect to the overall composition, with respect to the overall composition.
摘要:
Foam beads based on thermoplastic elastomers and having a coating comprising at least one electrically conductive substance, processes for producing same by coating the foam beads with an emulsion of a conductive substance in a plasticizer, and also processes for producing bead foams by joining the foam beads together thermally via high-frequency electromagnetic radiation.
摘要:
The present invention relates to a method of preparing thermal insulation expandable polystyrene particles and thermal insulation expandable polystyrene particles, and more particularly to a method of preparing thermal insulation expandable polystyrene particles which include preparing a mixture of expandable polystyrene particles and a thermal insulation material by mixing the expandable polystyrene particles and the thermal insulation material; preparing a mixture solution by dissolving chlorinated paraffin and at least one of a paraffin oil and a rubber resin in an organic solvent dissolving styrene; and softening a surface layer of the expandable polystyrene particles by spraying the mixture with the mixture solution, while stirring the mixture, and infiltrating the thermal insulation material, the chlorinated paraffin and the at least one of the paraffin oil and the rubber resin into the surface layer of the expandable polystyrene particles, and thermal insulation expandable polystyrene particles prepared by the same.
摘要:
Provided are: expandable acrylic resin bead and expanded acrylic resin bead, both having excellent moldability and capable of providing a foamed molded article that generates less soot during combustion and has a low decomposition gas generation speed; and a foamed molded article obtained through in-mold molding the expanded acrylic resin beads. The expandable acrylic resin bead is composed of an acrylic resin and a physical blowing agent impregnated therein. The acrylic resin contains a methacrylic ester component (A) and an acrylic ester component (B). The content of the component (A) is 85 to 99 mol % with respect to a total 100 mol % of the component (A) and the component (B). At least one of the component (A) and the component (B) contains a component having a polycyclic saturated hydrocarbon group. The glass transition temperature of the acrylic resin is 112 to 125° C.
摘要:
Provided are: expandable acrylic resin bead and expanded acrylic resin bead, both having excellent moldability and capable of providing a foamed molded article that generates less soot during combustion and has a low decomposition gas generation speed; and a foamed molded article obtained through in-mold molding the expanded acrylic resin beads.The expandable acrylic resin bead is composed of an acrylic resin and a physical blowing agent impregnated therein. The acrylic resin contains a methacrylic ester component (A) and an acrylic ester component (B). The content of the component (A) is 85 to 99 mol % with respect to a total 100 mol % of the component (A) and the component (B). At least one of the component (A) and the component (B) contains a component having a polycyclic saturated hydrocarbon group. The glass transition temperature of the acrylic resin is 112 to 125° C.