Organic positive temperature coefficient thermistor and manufacturing method therefor
First Claim
1. An organic positive temperature coefficient thermistor comprising a thermoplastic polymer matrix, a low-molecular organic compound having a melting point that is equal to or greater than 40°
- C. and less than 100°
C. and conductive particles, each having spiky protuberances, wherein;
a mixture of said thermoplastic polymer matrix, said low-molecular organic compound and said conductive particles is crosslinked with a silane coupling agent comprising a vinyl group or a (meth)acryloyl group and an alkoxy group.
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Abstract
An organic positive temperature coefficient thermistor comprising a thermoplastic polymer matrix, a low-molecular organic compound having a melting point that is equal to or greater than 40° C. and less than 100° C. and conductive particles, each having spiky protuberances, is obtained by crosslinking a milled mixture of these components with a silane coupling agent comprising a vinyl group or a (meth)acryloyl group and an alkoxy group. This organic positive temperature coefficient thermistor has sufficiently low resistance at room temperature and a large rate of resistance change between an operating state and a non-operating state, and can be operated at less than 100° C. with a reduced temperature vs. resistance curve hysteresis, ease of control of operating temperature, and high performance stability.
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Citations
10 Claims
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1. An organic positive temperature coefficient thermistor comprising a thermoplastic polymer matrix, a low-molecular organic compound having a melting point that is equal to or greater than 40°
- C. and less than 100°
C. and conductive particles, each having spiky protuberances, wherein;a mixture of said thermoplastic polymer matrix, said low-molecular organic compound and said conductive particles is crosslinked with a silane coupling agent comprising a vinyl group or a (meth)acryloyl group and an alkoxy group. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- C. and less than 100°
Specification