LANXESS is a leading specialty chemicals company with sales of EUR 8.3 billion in 2013 and about 16,700 employees in 29 countries. The company is currently represented at 52 production sites worldwide. The core business of LANXESS is the development, manufacturing and marketing of plastics, rubber, intermediates and specialty chemicals. LANXESS is a member of the leading sustainability indices Dow Jones Sustainability Index (DJSI World and DJSI Europe) and FTSE4Good.Tepex high-performance composites for rear muffler cover.Local reinforcement of thermoplastic compression molding compound.Cologne - Engineers increasingly are using Tepex performance composites from LANXESS subsidiary Bond-Laminates to significantly improve the mechanical strength of components made of fiber-reinforced thermoplastic compression molding compounds. The latest example is a cover on the rear muffler of the BMW i8. It is fabricated in a direct long fiber thermoplastic (DLFT) process from a polypropylene compression molding compound reinforced with long glass fiber rovings. An insert made of Tepex dynalite 104-RG601 is used as the surface layer. “With its stiffness at high temperatures, it ensures that the cover undergoes no deformation or failure in the hot environment of the rear muffler.What is more, our composite improves the strength and impact resistance of the component in freezing temperatures,” explained Harri Dittmar, composites expert at Bond-Laminates. Significant increase in stiffness and impact resistance.The Tepex insert is 0.5 millimeters thick and made of a polypropylene matrix, incorporating 47 percent by volume continuous glass fiber rovings as a single-layer fabric. “Thanks to this insert, the stiffness of the cover increases by a factor of four at room temperature and a factor of six at the operating temperature of the rear muffler,” explained Dittmar. Impact resistance benefits as well. In penetration tests to DIN EN ISO 6603-2, the Tepex dynalite formulation used proved to be eight to nine times more impact resistant at room temperature than a DLFT compression molding compound based on polypropylene. “At temperatures of -30 °C, the impact resistance is even 10 times higher – DLFT based on polypropylene will splinter under these conditions in a crash, our Tepex will not,” Dittmar said.
Great application potential with GMT and LWRT materials.Tepex also is an attractive option for locally reinforcing components made of other thermoplastic compression molding compounds and forming materials. For example, the mechanical properties of Tepex-reinforced DLFT polypropylene materials are on par with glass-mat-reinforced and glass-fabric-reinforced thermoplastic systems (GMT and GMTex) based on polypropylene. “In this case, the combination of Tepex with the DLFT process opens up considerable savings potential, for instance in the fabrication of underbody components,” Dittmar explained. Polypropylene-based, low-weight reinforced thermoplastics(LWRT), which are used to manufacture underbody panels due to their high sound absorption, can also be significantly stiffened with Tepex surface layers. Using a single-layer Tepex component preserves the acoustic effect. “The result is components that can easily withstand the mechanical loads associated with road traffic.”
石墨烯纺织物材料具有以下特点：
1.超强远红外,在20-35°C低温状态下，石墨烯对16至14微米波长远红外吸收率80%以上，具有保温瓶一样的保温效果，有自发热、自散热、低温远红外保健、抑菌除臭等多种功效
2.促进微循环,石墨烯内含有的元素能够促进血液循环，扩张血管，并且具有激化免疫细胞的功能，能将人体惰性水分子激化为活性水分子，提高人体含氧量，缓解疲劳。
Graphene textile materials have the following characteristics: 1. Super far infrared In 20-35 ° C temperature state, graphene for at 16 and 14 microns far-infrared absorption rate more than 80%, with a vacuum flask as heat preservation effect, a spontaneous heat, the heat dissipation, low temperature far infrared health care, antibacterial deodorant and other functions 2. Promote microcirculation Graphene contains elements that can promote blood circulation, expand blood vessels, and activate immune cells. It can activate inert water molecules into active water molecules, improve oxygen content and relieve fatigue.
Multifunctional wearable e-textiles have been a focus of much attention due to their great potential for healthcare, sportswear, fitness, space, and military applications. Among them, electroconductive textile yarn shows great promise for use as next-generation flexible sensors without compromising the properties and comfort of usual textiles. However, the current manufacturing process of metal-based electroconductive textile yarn is expensive, unscalable, and environmentally unfriendly. Here we report a highly scalable and ultrafast production of graphene-based flexible, washable, and bendable wearable textile sensors. We engineer graphene flakes and their dispersions in order to select the best formulation for wearable textile application. We then use a high-speed yarn dyeing technique to dye (coat) textile yarn with graphene-based inks. Such graphene-based yarns are then integrated into a knitted structure as a flexible sensor and could send data wirelessly to a device via a self-powered RFID or a low-powered Bluetooth. The graphene textile sensor thus produced shows excellent temperature sensitivity, very good washability, and extremely high flexibility. Such a process could potentially be scaled up in a high-speed industrial setup to produce tonnes (∼1000 kg/h) of electroconductive textile yarns for next-generation wearable electronics applications.