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phr PHR =peak height ratio 峰高比。

phrasal

The results show a few grooves appear on the worn surface of the composites which contain 10 phr nano - al2o3 there are a great many grooves on the worn surface of the composites containing 20 phr . in addition the deeper cracks also appear . this shows that excess nano - al2o3 particles ca n ' t improve wear properties of pa6 ' s . the proper content of nano - al2o3 in the matrix can enable the molecular chains of pa6 to produce closed joints which resemble the physical crosslinking 尼龍6 / a12o :復合材料的加工性能研究表明:隨著納米a12o3的加入,復合材料的熔體流動速率下降,納米a12o3含量越大,下降越明顯,即隊6 / a12o3納米復合材料的加工性能越差;隨著納米a12o3的加入,復合材料的轉矩和塑化時間都增加,當含量小于巧phr時,隊6復合材料的轉矩增加幅度不大,當含量超過15phr后,轉矩急劇升高。

Research shows that absorption properties of composite powders are better than those of single absorber . the minimum reflectivity of 25 phr cb can decrease from - 10 . 54db to - 28 通過對復合粉體的吸波性能的研究,結果表明復合粉體的吸波性能優于單一吸波劑的吸波性能。

The tem analysis of pa6 composites shows that optimal incorporation of nano - al2o3 into pa6 is at 10 phr of nano - al2o3 , and that fillers can equably disperse in matrix 另一方面,透射電鏡分析表明,添加量為10phr的試樣中納米a12o3粒子可以在尼龍6基體中均勻的分散。

When incorporation content of nano - al2o3 is 20 phr , fillers show conglomeration , which reduces the ability of fillers to link the molecular chain of pa6 因此,為了提高填充粒子與基體的結合能力,有效的降低材料的磨損,對填充粒子作有機化處理是必要的。

All along or ( informal ) right along adv . phr 自始至終;一直就;從開始便。