摘要:
In one aspect, a composite composition may include a nonwoven composite material. The nonwoven composite material may include a graphene component and a polymer component. The graphene component and polymer component may form a microporous film or nonwoven fabric. In a further aspect, the composite composition may include a layered composition wherein one or more layers include the nonwoven composite material. The nonwoven composite material may also be provided as a coating or adhesive.
摘要:
A sol composition for producing a porous low-k dielectric material is provided. The composition can include at least one silicate ester, a polar solvent, water, an acid catalyst for silicate ester hydrolysis, an amphiphilic block copolymer surfactant, and a nonmetallic catalyst that reduces dielectric constant in the produced material. The composition can further include a metallic ion at a lower parts-per-million concentration than the nonmetallic catalyst, and/or the composition can further include a cosolvent. A method of preparing a thin film on a substrate using the sol composition is also provided.
摘要:
A process for debundling a carbon fiber tow into dispersed chopped carbon fibers suitable for usage in molding composition formulations is provided. A carbon fiber tow is fed into a die having fluid flow openings, through which a fluid impinges upon the side of the tow to expand the tow cross sectional area. The expanded cross sectional area tow extends from the die into the path of a conventional fiber chopping apparatus to form chopped carbon fibers, or through contacting tines of a mechanical debundler. Through adjustment of the relative position of fluid flow openings relative to a die bore through which fiber tow passes, the nature of the fluid impinging on the tow, the shape of the bore, in combinations thereof, an improved chopped carbon fiber dispersion is achieved. The chopped carbon fiber obtained is then available to be dispersed in molding composition formulations prior to formulation cure.
摘要:
A method for continuous High Internal Phase Emulsion (HIPE) foam production. A HIPE is produced then extruded onto a belt (20). After polymerization, a portion of the saturated aqueous phase is removed using a vacuum box (52). A nip insert (50) is inserted under the vacuum box (52) to raise the vacuum box (52) leading to improved uniformity of the HIPE in the cross direction along the belt (20).
摘要:
Provided is an improved method for preparation of insoluble molecular imprinted polymers (MIPs), the method comprising : a) providing soluble or semi-soluble MIPs that 1) substantially all bind template agents and 2) have sizes which enable their separation in a chromatographic step utilizing packed bed chromatography, b) cross-linking the template agent binding soluble MIPs provided in step a so as to obtain insoluble template agent binding MIPs, and c) optionally isolating, concentrating or purifying the MIPs obtained by the cross-linking in step b. In an interesting embodiment, step a includes an affinity purification procedure, which ensures that the MIPs provided in step a are indeed all binders of the template.
摘要:
The present disclosure generally relates to processes, apparatuses and custom catalysts designed to depolymerize a polymer. In one embodiment, the present invention relates to a de-polymerizing apparatus, catalysts and reaction schemes to obtain useful monomers including fuel products by "in situ" reactions using coupled electromagnetic induction.
摘要:
본 발명은 합성수지와 분산력이 우수한 은 나노입자를 흡착시킨 실리카 나노튜브 항균제를 혼합하여 제조한 펠릿형 항균성 마스터배치에 관한 것으로, 본 발명에 따른 펠릿형 항균성 마스터배치를 합성수지를 혼합하여 다양한 종류의 합성수지 제품을 성형함으로써, 작업공정이 단순하여 생산성이 높을 뿐만 아니라 특히 은 나노입자 함유 실리카 나노튜브의 항균제가 합성수지 성형제품 내에서 균일하게 분산되어 항균성 기능이 우수하여 식기류, 도마, 물통 등과 같은 주방용품과 젖병, 장난감 등과 같은 유아용품, 각종 합성섬유 제품, 전자제품의 케이스 또는 내외장재 등의 건축자재 등과 같이 다양한 용도로 그 수요가 널리 확대될 것으로 기대된다.