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Polyplastics confirma viabilidad del PPS para moldeo con rebaje de sistemas automotrices de enfriamiento del motor
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News provided by

Polyplastics Co., Ltd.

Sep 24, 2018, 22:08 ET

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TOKIO, 19 de septiembre de 2018 /PRNewswire/ -- Polyplastics Co., Ltd., un proveedor mundial líder de soluciones termoplásticas de ingeniería, ha concluido un extenso estudio que confirma la viabilidad del sulfuro de polifenileno (PPS) para moldeo con rebaje (bump-off) de sistemas automotrices de enfriamiento del motor. El PPS DURAFIDE (R) lineal de Polyplastics, que ya ofrece un rendimiento superior al de rivales como nylon 66, ahora tiene capacidades de moldeo con rebaje para eliminar el desbarbado.

(Logo: https://kyodonewsprwire.jp/img/201809127866-O2-A4zWC4Id) 
(Imagen: https://kyodonewsprwire.jp/img/201809127866-O1-H350z52k)

El moldeo con rebaje da como resultado un corte sesgado que "choca" en dos direcciones y sale del molde sin usar una estructura de deslizamiento. La línea de separación (labio del molde) desaparece, permitiendo un molde sin rebaba. Anteriormente, el PPS tenía un uso limitado en el moldeo con rebaje de piezas de ingeniería debido a su fragilidad.

Polyplastics descubrió que los materiales con alta tensión de fractura por flexión en ambientes de alta temperatura (150C para PPS) son adecuados para rebajes tanto en daño como en deformación. La empresa también observó que las mejoras en la tensión de fractura en ambientes de alta temperatura son posibles reduciendo relleno, añadiendo elastómero y utilizando PPS de alto peso molecular.

Polyplastics ha demostrado que el PPS lineal exhibe una mayor tensión de fractura que el PPS de enlace cruzado y es más conducente al moldeo con rebaje. El PPS DURAFIDE de Polyplastics parece adecuado para rebajes desde el punto de vista de la tenacidad en ambientes de alta temperatura. Entre los materiales del PPS DURAFIDE, el 1130A1 de alto peso molecular (GF30%) y el 1140A1 (GF40%) parecen ser útiles para rebajes.

Polyplastics cree que el PPS DURAFIDE aumenta la fiabilidad del producto, y que los rebajes reducen el proceso de desbarbado y facilitan una mayor libertad de diseño. El PPS DURAFIDE también ofrece una alta resistencia al calor con una temperatura de servicio continuo de 200C a 240C. También ofrece una mayor resistencia química que los fluoropolímeros, y una mayor estabilidad dimensional y una reducida hidrólisis/absorción de agua en comparación con nylon 66.

Para más información, visite https://www.polyplastics.com/en/product/lines/pps_bump-off/index.vm 

DURAFIDE (R) es una marca registrada de Polyplastics en Japón y otros países.

Acerca de Polyplastics 
Polyplastics Co., Ltd. es un líder mundial en el desarrollo y la producción de soluciones termoplásticas de ingeniería. La amplia cartera de productos de la empresa abarca polioximetileno (POM), tereftalato de polibutileno (PBT), sulfuro de polifenileno (PPS) y polímero de cristal líquido (LCP). La empresa tiene la mayor participación en el mercado internacional de POM. Con más de 50 años de experiencia, la empresa está respaldada por una sólida red internacional de recursos de investigación y desarrollo (I+D), producción y ventas capaces de crear soluciones avanzadas para un mercado mundial siempre cambiante.

FUENTE Polyplastics Co., Ltd.

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