摘要:
Adhesive compositions are described that significantly improve the adhesion of polymer overmold compositions to metal substrates in polymer-metal junctions. The adhesive compositions include one or more poly(aryl ether) polymers, where each of the poly(aryl ether) polymers is, independently, a poly(aryl ether sulfone) polymer or a poly(aryl ether ketone) polymer. The overmold composition includes at least one poly(aryl ether ketone) polymer. Polymer-Metal junctions can be formed by, for example, dip-coating, spin-coating, extruding, or injection molding the adhesive composition and/or the overmold composition onto the metal substrate. Desirable applications settings for the polymer-metal junctions described include, but are not limited to electrical wiring.
摘要:
A uniaxially-stretched, high yield extruded capacitor film comprising a compatible polymer blend comprising a polyetherimide and a polyphenylene ether sulfone, wherein the polyetherimide comprises units derived from polymerization of an aromatic dianhydride with a diamine comprising a m-phenylenediamine, a p-phenylenediamine, or combinations thereof, wherein the polyetherimide is endcapped with a substituted or unsubstituted aromatic primary monoamine, wherein the polyphenylene ether sulfone comprises both an ether linkage and an aryl sulfone linkage in its backbone, wherein the compatible polymer blend comprises a dispersed phase having an average cross section of from equal to or greater than about 0.01 microns to about 20 microns, and wherein the high yield extruded capacitor film comprises equal to or greater than about 90 wt. % of the compatible polymer blend entering an extruder used for manufacturing the capacitor film, based on the total weight of the compatible polymer blend prior to entering the extruder.
摘要:
A uniaxially-stretched, high yield extruded capacitor film comprising a miscible polymer blend comprising a polyetherimide and a poly(carbonate-arylate ester), wherein the polyetherimide comprises units derived from polymerization of an aromatic dianhydride with a diamine comprising a m-phenylenediamine, a p-phenylenediamine, or combinations thereof, wherein the polyetherimide is endcapped with a substituted or unsubstituted aromatic primary monoamine, wherein the poly(carbonate-arylate ester) comprises repeating bisphenol carbonate units and repeating arylate ester units, wherein the repeating bisphenol carbonate units and the repeating arylate ester units are different from each other, and wherein the high yield extruded capacitor film comprises equal to or greater than about 90 wt. % of the miscible polymer blend entering an extruder used for manufacturing the capacitor film, based on the total weight of miscible polymer blend prior to entering the extruder.
摘要:
Disclosed is an electrolyte membrane for a fuel cell including a polymer blend of a sulfonated polyethersulfone copolymer, hydroxyl group-containing polyethersulfone copolymer and a hydroxyl group-containing sulfonated polyethersulfone copolymer.
摘要:
Sizing agent-coated reinforcing fibers include reinforcing fibers and a sizing agent containing a polyrotaxane, the reinforcing fibers being coated with the sizing agent. Provided are sizing agent-coated reinforcing fibers that provide a fiber-reinforced composite material with excellent mechanical properties, a method for producing the sizing agent-coated reinforcing fibers, a prepreg including the sizing agent-coated reinforcing fibers, and a fiber-reinforced composite material with excellent mechanical properties including the sizing agent-coated reinforcing fibers.
摘要:
A method of fabricating a composite membrane, includes the steps of: forming a first solution comprising a charged polymer and a first uncharged polymer having a repeat unit of a formula of: where each of X and Y is a non-hydroxyl group; forming a second solution comprising a second uncharged polymer; electrospinning, separately and simultaneously, the first solution and the second solution to form a dual fiber mat; and processing the dual fiber mat to form the composite membrane.
摘要:
An epoxy resin composition comprising the following constituents [A], [B], and [C]: [A] an epoxy resin having a structure represented by a formula (1); in which a ring Z represents a condensed polycyclic aromatic hydrocarbon ring, R1 and R2 represent a substituent, R3 represents a hydrogen atom or a methyl group, k is an integer of 0 to 4, m is an integer of 0 or more, and n is an integer of 1 or more; [B] at least one resin selected from the group consisting of the following [Bx], [By] and [Bz]; [Bx] a bisphenol type epoxy resin; [By] an amine type epoxy resin; and [Bz] a thermoplastic resin; [C] a polyamine curing agent. Provided is an epoxy resin composition which provides a cured product having excellent heat resistance, toughness and elastic modulus.
摘要:
The present invention provides a thermoplastic resin composition which is produced by a method which includes melt-kneading: (a) a polyphenylene sulfide resin, with (b) a polyetherimide resin or a polyethersulfone resin. The thermoplastic resin composition contains 99 to 1% by weight of the component (a) and 1 to 99% by weight of the component (b) based on 100% by weight of the total amount of the component (a) and the component (b). The melt-kneading step is conducted by employing an extruder provided with an elongational flow zone which is a zone in which melt-kneading is performed while being allowed to undergo elongational flow, wherein the flow effect pressure drop is from 50 to 1,000 kg/cm2 and is determined by subtracting the pressure value (P0) of the molten resin in the elongational flow zone from the pressure value (P) of the molten resin before entering the elongational flow zone.
摘要翻译:本发明提供一种热塑性树脂组合物,其通过熔融捏合(a)聚苯硫醚树脂与(b)聚醚酰亚胺树脂或聚醚砜树脂的方法制备。 基于组分(a)和组分(a)的总量的100重量%,热塑性树脂组合物含有组分(a)99至1重量%和组分(b)1至99重量% b)。 通过使用具有伸长流动区域的挤出机进行熔融捏合步骤,所述伸长流动区域是在进行熔融捏合的同时进行伸长流动的区域,其中流动效应压降为50至1,000kg / cm 2 并且通过从进入伸长流动区域之前的熔融树脂的压力值(P)减去伸长流动区域中的熔融树脂的压力值(P0)来确定。
摘要:
A foam material made from a composition [composition (C)] comprising at least one high temperature poly(aryl ether sulfone) (PAESHT) polymer characterized in that the PAES polymer comprises from 1 to 99% by weight amount of at least one recurring unit (RPAES) [(RPAES−1)]) based on the total amount of recurring units, and from 1 to 99% by weight amount of at least one recurring unit (RPAES) [(RPAES−2)], based on the total amount of recurring units, and wherein said (RPAES−2) recurring unit is different from the (RPAES−1) recurring unit.
摘要:
The embodiments herein relate to a benzoxazine resin composition, a prepreg, and a carbon fiber-reinforced composite material. More specifically, the embodiments herein relate to a benzoxazine resin composition that provides a carbon fiber-reinforced composite material that is suitable for use as a manufacture material due to its superior mechanical strength in extreme use environments, such as high temperature and high moisture, as well as a prepreg, and a carbon fiber-reinforced composite material. An embodiment comprises a benzoxazine resin composition having a multifunctional benzoxazine resin; a multifunctional epoxy resin that is a liquid at 40° C. and has three or more glycidyl groups; a sulfonate ester; and optionally at least one thermoplastic resin. The resin may include an interpenetrating network structure after curing.