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研究了过氧化氢对烷(PMHP)产品的质量分数、酸值、折光率、黏度等指标随贮存天数的变化规律,探讨了影响PMHP质量稳定性的主要因素。结果表明,PMHP质量分数、酸值、折光率、黏度对贮存天数的相关系数(rt)分别为-0.8807、0.9867、0.9348和0.2236;贮存过程中的酸值、折光率和黏度对PMHP质量分数相关系数(rc)分别为:-0.9454、-0.9695和-0.4240。酸性物质的存在及产生是影响PMHP产品贮存稳定性的关键因素,通过控制产品初始酸值在较低的合理水平,可有效减缓酸值及PMHP的变化速率,从而提高质量稳定性。
The change rules of mass fraction, acid value, refractive index and viscosity of hydrogen peroxide on paraffin (PMHP) product were studied. The main factors affecting the quality stability of PMHP were discussed. The results showed that the correlation coefficient (rt) of PMHP mass fraction, acid value, refractive index and viscosity on storage days were -0.8807, 0.9867, 0.9348 and 0.2236, respectively. The acid value, refractive index and viscosity of PMHP were correlated with the mass fraction of PMHP The coefficients (rc) are respectively -0.9454, -0.9695 and -0.4240. The existence and production of acidic substances are the key factors that affect the storage stability of PMHP products. By controlling the initial acid value of the products at a lower reasonable level, the acid value and the rate of change of PMHP can be effectively reduced to improve the quality stability.