摘要
The study on the correlation between time dependence of electrical resistivity and dynamic storage modulus for carbon black(CB) filled polymer composites was carried out. With the increase of the dynamic storage modulus(G′) as well as the normalized dynamic storage modulus(G′_ c /G′_ p), the volume resistivity(ρ) deceases with the increase of annealing time beyond the T_ m of the composites. It is believed that this phenomenon can be used for examining the development of agglomerate structure of filled composites and illustrating the micro-mechanism of the NTC behavior. It is assumed that melting treatment to CB filled composites results in a higher modulus and lower resistivity due to more even local dispersion of the particles and formation of perfect CB network structure within the matrix.
The study on the correlation between time dependence of electrical resistivity and dynamic storage modulus for carbon black（CB） filled polymer composites was carried out. With the increase of the dynamic storage modulus（G＇） as well as the normalized dynamic storage modulus（ G＇c/G＇p ）, the volume resistivity（p） deceases with the increase of annealing time beyond the Tm of the composites. It is believed that this phenomenon can be used for examining the development of agglomerate structure of filled composites and illustrating the micro-mechanism of the NTC behavior. It is assumed that melting treatment to CB filled composites results in a higher modulus and lower resistivity due to more even local dispersion of the particles and formation of perfect CB network structure within the matrix.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2006年第3期583-585,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:50133020
50125312)资助.
