F-T蜡对石蜡调合性质的影响

Effect of F-T Wax on the Blending Properties of Paraffin Wax

采用F-T蜡对石蜡进行调合,分别考察了F-T蜡质量分数对46~#和58~#石蜡的影响。结果表明,F-T蜡的加入可以显著提高石蜡熔点,在F-T蜡质量分数从0.05%增加到30.00%时,46~#与58~#调合蜡滴熔点分别从72.4、88.4℃下降到44.4、62.4℃;随着F-T蜡质量分数的增加,调合蜡的滴熔点与针入度不断下降,即F-T蜡的质量分数与滴熔点和针入度成反比。对调合蜡的结晶结构进行分析,结果表明,由于调合蜡中非异构烷烃含量高,所以它的晶体结构为斜方点阵排列结构的长针状蜡晶,与天然石蜡结晶不同,其组成更加复杂。

Paraffin wax was blended with F-T wax.The effects of the mass fraction of F-T wax on paraffin 46#and 58#were investigated respectively.The results show that the addition of F-T wax can significantly increase the melting point of paraffin,when the mass fraction of F-T wax increases from 0.05%to 30.00%,the melting point of 46#and 58#blended wax drops from 72.4℃to 44.4℃,and drops from 88.4℃to 62.4℃,respectively.With the increase of the mass fraction of F-T wax,the melting point and penetration of blended wax decrease continuously,that is,the mass fraction of F-T wax is inversely proportional to the drop melting point and penetration.The analysis of the crystalline structure of the blended wax shows that,the content of non-isoparaffins in the blended wax is higher.So its crystal structure is an array of inclined lattice arrangement of the long needle-like wax crystals,and the natural paraffin crystallization is different with others,which composition is more complex.