The effect of content of carbon black and on volume resistivity and intensity of positive temperature coefficient (PTC) , and the effect of irradiation dosage on crossinking density electric-thermal stability and recurrence of composition comprising LDPE/EEA/EPDM/carbon black were investigated in this paper.
The test results show that the micro temperature sensing element on PI film exhibits good linearity and a temperature coefficient of resistance is close to 0. 0023/℃.
The size of light spot produced by traditional 1μm laser wavelength and its heat affected zone (HAZ) are probably not small enough to maintain the resistor stability and difficult to make the drift and the variation of temperature coefficient of resistance (TCR) reduced to a minimum.
The temperature coefficient, Q10 (fractional change in rate with a 10°C increase in temperature) describes the temperature sensitivity of soils, roots, and stems, as well as their possible performance in global warming processes.
There was no significant difference in the temperature coefficient (Q10) for gross nitrification rate among all the forest sites (One-way ANOVA, p >amp;lt; 0.05).