While there are different types of plastics that meet a variety of application needs, most of them have some outstanding advantages and outstanding shortcomings, which means that one part is often required to meet different standards and regulatory requirements Several different types of plastics. Now, BMC 0204 thermosetting plastics have changed this situation, which opened up completely new possibilities for plastic applications.
Developed by Lorenz Kunststoff GmbH, BMC 0204 is one of the rare in the market to offer not only excellent flame retardancy but also very high mechanical properties of thermosets, which significantly reduce the range of plastics that must be used may.
'Our customers are often faced with the problem that one part must meet different standards and regulations at the same time.' 'Said Thomas Lorenz, managing director of Lorenz Kunststofftechnik GmbH.' So they need to use different types of plastic but this is both laborious and expensive '
After two years of research in its own laboratory, Lorenz Kunststofftechnik GmbH has developed BMC 0204 thermosetting plastics for a wide range of applications, combining a wide range of outstanding properties. UL 94 certification tests conducted by an independent U.S. agency show that only The 0.4 mm wide BMC 0204 reached the V0 level, during which time an open flame was applied to the material sample, the flame was removed and the burning time was graded. As a result, the burning time of BMC 0204 was less than 10 seconds.
'What's really surprising is not just the very short burning time, but tests clearly show that it is very difficult to ignite the BMC 0204, and most importantly it is done with such a thin material sample,' explains Lorenz.
Even with the LOI (Limit Oxygen Index) test, BMC 0204 performed exceptionally well with 100% satisfaction - twice as much as other plastics with extremely high flame retardancy, making this thermoset a The only flame-retardant plastic that can be injection-molded with this value today, and the ball-pressure test at 150 ° C shows that BMC 0204 can withstand extreme conditions.
Meet EU standards for rail vehicle fire safety
BMC 0204 meets a wide range of fire safety standards and has received several important EU approvals such as I0 / F0 / M1, which is the highest level of the French rail vehicle fire protection standard NF F 16-101. Under the latest implementation of the EU EN 45545- 2 standard tests, BMC 0204 also showed the highest level.
Suitable for the production of large and precision parts
With a helical flow length of at least 1000 mm, BMC 0204 stands in stark contrast to other flame-retardant materials. "Flame-retardant plastics are so fluid that it is very unusual," Lorenz said. "With this feature, Suitable for the production of large and very precise parts.
The extremely low injection pressure allows the BMC 0204 to be used for overmolding of precision electronic components and sensors. In addition, the BMC 0204 has a CTI value of 600V and a thermal conductivity of 1.35 W / mK, the highest achievable with standard plastics Other features include an arc resistance of over 240s, making the material suitable for use in applications such as junction boxes, MCBs, fuses or household appliances.
Moreover, BMC 0204 provides impact resistance of more than 20 kJ / m², even at very low temperatures of -30 ° C and very high temperatures of 180 ° C. The shape remains unchanged even at sharp drops in temperature Therefore, the BMC 0204 can be used without problems for a wide range of ambient conditions and at any temperature. Outdoor junction boxes made of BMC 0204 have a long service life even at variable temperatures.
This thermoset is free of halogens, chlorides, cyanides and bromides and can be laser printed or engraved.