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Busbar holders made of BASF's new TPU more resistant to thermal cycling

Source:Adsale Plastics Network Date :2022-06-06 Editor :JK

The transformation of the car from the combustion engine to the electric powertrain is progressing. Highly efficient battery systems are the key to success of electromobility as the electricity is transmitted from the charging components to the battery and from there to the electric motor.

 

This is done by metal busbars. Plastic overmoldings ensure electrical insulation of the busbars and, thus, safe distribution of the high-voltage currents.

 

BASF is expanding its portfolio with a newly developed TPU from its Elastollan product line for these busbar holders. Compared to standard engineering plastics, Elastollan R 2600 FHF stands out due to the optimized thermal linear expansion.


1_web.jpg

Newly developed TPU overmolding for busbars is more resistant to thermal cycling due to optimized thermal linear expansion.


Its linear thermal expansion coefficient is close to copper and comparable conductor materials. This reduces the risk of cracks occurring during temperature changes which increases the safety standard.

 

Besides, Elastollan is halogen-free flame retardant achieving the classification UL94 V-0.

 

In addition to the main aspect of thermal linear expansion, the TPU also has three convincing advantages compared to materials such as polyphenylene sulfide (PPS). It can be processed at lower temperatures, has a lower density and, due to its white color, can be easily colored even with bright pigments.

 

Moreover, BASF is able to simulate the design of busbar holders. "Like several other Elastollan grades, the new Elastollan can be simulated by our Ultrasim tool. We use this tool to support our customers in the design of components," explained Dr Thomas Bayerl, Segment Marketing Manager E&E from BASF’s Performance Materials division.

 

Due to their mechanical processability, busbar holders made of Elastollan contribute to the mass production capability of electric cars and form an important piece in the mosaic of future mobility.

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Automotive
BASF
 Tangshan Zhonghao Chemical Co., Ltd      
 HEBEI LINGSHOU COUNTYZHONGKE MINERAL POWDERCO, LTD.      
 GANSU EILITE NEW MATERIALS CO., LTD.      
 HANGZHOU JUXING NEW MATERIAL TECHNOLOGY CO., LTD      
 MOTAN TAICANG CO., LTD.      
 SUZHOU FISA HOT RUNNER TRADE CO., LTD      
 SHENZHEN YUTIAN NEW MATERIALS TECHNOLOGY CO., LTD      
 ZHEJIANG HONGXIANG CONNECTOR CO.,LTD.      
 SHANGHAI SUNWAY CHEMICAL CO.,LTD      
 SUZHOU GELEFU M&E TECHNOLOGY CO., LTD.      
 GUANGDONG HTASO NEW MATERIALS TECHNOLOGY CO.,LTD      
 YONEI INNOVATIVE MATERIAL TECH LIMITED      
 Sinochem Internation Corporation      
 CATHAY (TAIYUAN) BIOMATERIAL CO., LTD.      

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Source:Adsale Plastics Network Date :2022-06-06 Editor :JK

The transformation of the car from the combustion engine to the electric powertrain is progressing. Highly efficient battery systems are the key to success of electromobility as the electricity is transmitted from the charging components to the battery and from there to the electric motor.

 

This is done by metal busbars. Plastic overmoldings ensure electrical insulation of the busbars and, thus, safe distribution of the high-voltage currents.

 

BASF is expanding its portfolio with a newly developed TPU from its Elastollan product line for these busbar holders. Compared to standard engineering plastics, Elastollan R 2600 FHF stands out due to the optimized thermal linear expansion.


1_web.jpg

Newly developed TPU overmolding for busbars is more resistant to thermal cycling due to optimized thermal linear expansion.


Its linear thermal expansion coefficient is close to copper and comparable conductor materials. This reduces the risk of cracks occurring during temperature changes which increases the safety standard.

 

Besides, Elastollan is halogen-free flame retardant achieving the classification UL94 V-0.

 

In addition to the main aspect of thermal linear expansion, the TPU also has three convincing advantages compared to materials such as polyphenylene sulfide (PPS). It can be processed at lower temperatures, has a lower density and, due to its white color, can be easily colored even with bright pigments.

 

Moreover, BASF is able to simulate the design of busbar holders. "Like several other Elastollan grades, the new Elastollan can be simulated by our Ultrasim tool. We use this tool to support our customers in the design of components," explained Dr Thomas Bayerl, Segment Marketing Manager E&E from BASF’s Performance Materials division.

 

Due to their mechanical processability, busbar holders made of Elastollan contribute to the mass production capability of electric cars and form an important piece in the mosaic of future mobility.

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Busbar holders made of BASF's new TPU more resistant to thermal cycling

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