日本在线高清不卡免费播放

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參數說明


1、比表面積:
可用BET(Brunauer-Enmet-Teller)即低溫氮吸附方法測定。也可用世界上通用的簡捷的碘吸附方法。測定結果所代表每克所具有的表面積,(m2/g)。
2、粒徑:
表中所列出各種碳黑的粒徑是表示碳黑原生粒徑,它是通過電子顯微鏡測試的,是一定顆數粒徑的平均值。
3、吸收值(DBP吸收值):
是用鄰苯=甲酸=丁酯(DBP)對碳黑吸附。當吸附平衡時所消耗DBP量,它代表碳黑結構的大小,吸附值高則碳黑結構高,反之則低。
4、著色力:
是表示碳黑染色白體的能力,一般著色力高,其遮蓋性能好。測試方法按ASTM-3265進行。
5、揮發分:
是碳黑表面吸附的含氧官能團(羧基、醌基、內酯基和羥基等)這些基團的含量代表碳黑的表面化學性質。它與PH值有相關性。
6、PH 值:
是代表碳黑的酸堿性。一般爐法碳黑均呈堿性(PH>7)。只有經過后處理碳黑其PH值在3--5之間而揮發分較高。
7、密度:
單位體積碳黑的重量即:(克/升),是表示各種型號碳黑所占空間的大小,造粒度愈大,其表現密度也越大,反之則小,造粒度對碳黑的分散性(特別用于塑料和油漆\油墨中)有影響。
8、加熱減量:
是在一定溫度下測定碳黑水分含量,它與碳黑的生成環境有關

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日本在线高清不卡免费播放
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