Abstract:
voc ou dispositivo de contenção de gás comprimido feito de um polímero polioximetileno. voc ou dispositivos de contenção de gás comprimido, como o reservatório de combustível de polímeros, são feitos a partir de uma composição polimérica de polioximetileno. a composição polimérica contém um polímero polioximetileno que está direta ou indiretamente ligado quimicamente a um modificador de impacto. numa forma de realização, por exemplo, um agente de acoplamento ligando o modificador de impacto para o polímero polioximetileno. a fim de preservar a permeabilidade do material de polímero quando combinado com o modificador de impacto, um polímero polioximetileno é usado contendo um nível baixo de baixo peso molecular.
Abstract:
Dispositivos de contención de gas comprimido o VOC, tal como tanques de combustible de polímero, son hechos a partir de una composición de polímero de polioximetileno; la composición de polímero contiene un polímero de polioximetileno que está directa o indirectamente unido químicamente a un modificador de choque; en una modalidad, por ejemplo, un agente de acoplo une el modificador de choque al polímero de polioximetileno; a fin de conservar la permeabilidad del material de polímero cuando se combina con el modificador de choque, se utiliza un polímero de polioximetileno el cual contiene un nivel bajo de constituyentes de bajo peso molecular.
Abstract:
Pipe sections and methods for forming pipe sections are disclosed. A pipe section includes a hollow body formed from a polymer material, the hollow body having an inner surface and an outer surface, the inner surface defining an interior. The pipe section further includes a barrier layer surrounding and unbonded from the hollow body, the barrier layer having an inner surface and an outer surface. The barrier layer is formed from a continuous fiber reinforced thermoplastic material. Such pipe sections may be lightweight and flexible while exhibiting improved strength characteristics.
Abstract:
Pipe sections and methods for forming pipe sections are disclosed. A pipe section includes a hollow body, the hollow body having an inner surface and an outer surface, the inner surface defining an interior. The pipe section further includes a barrier layer surrounding the hollow body, the barrier layer having an inner surface and an outer surface. The barrier layer is formed from a polyarylene sulfide composition. The polyarylene sulfide composition includes a polyarylene sulfide and a crosslinked impact modifier. Such pipe sections exhibit high strength characteristics and flexibility as well as resistance to degradation, even in extreme temperature environments, while maintaining desirable processing characteristics.
Abstract:
Polyarylene sulfide compositions are described that exhibit high strength and flexibility. Methods for forming the polyarylene sulfide compositions are also described. Formation methods include dynamic vulcanization of a polyarylene sulfide composition that includes an impact modifier dispersed throughout the polyarylene sulfide. A crosslinking agent is combined with the other components of the composition following dispersal of the impact modifier throughout the composition. The crosslinking agent reacts with the impact modifier to form crosslinks within and among the polymer chains of the impact modifier. The compositions can exhibit excellent physical characteristics at extreme temperatures and can be used to form, e.g., tubular member such as pipes and hoses and fibers.
Abstract:
Pipe sections and methods for forming pipe sections are disclosed. A pipe section includes a hollow body formed from a metal material, the hollow body having an inner surface and an outer surface, the inner surface defining an interior. The pipe section further includes a barrier layer surrounding and bonded to the hollow body, the barrier layer having an inner surface and an outer surface. The barrier layer is formed from a continuous fiber reinforced thermoplastic material. Such pipe sections may be lightweight and flexible while exhibiting improved strength characteristics.
Abstract:
A fibrous material that contains polyarylene sulfide fibers coated with an emulsion copolymer is provided. The emulsion copolymer that is coated onto the polyarylene sulfide fibers is crosslinked. For example, the copolymer may contain a reactive co-monomer that acts as a crosslinking agent. Alternatively, a separate crosslinking agent may be combined with the emulsion copolymer. In either case, the resulting copolymer composition is cured after it is applied to the fibers to initiate the formation of crosslink bonds between the emulsion copolymer and create a three-dimensional network that is capable of coating and encapsulating the fibers. Without intending to be limited by theory, it is believed that this three-dimensional network is able to physically entrap disperse dyes when applied to the fibers.