The elementary explore of multiple regression techniques about the fiberglass filter paper＇s influence on the PM2.5 assaying

The thesis had a deep research about the fiberglass filter paper＇s influence on the PM2.5 assaying. It has chosen XRF to make a quantitative analysis. Based on multiple regression theory it regard fiberglass filter paper＇s quality, element content and the quality of the loaded sample as independent variable, while the element＇s quality that the sample has collected as dependent variable. Furthermore, it has established four multiple quadric response surface models which concerning Ca by using of Mathematica and Matlab： Y = 0.8649-2.094x1-2.08x2 -1.375x3-10.58x1x2＋8.53x1x3＋1.549x2x3-3.443x1^2＋6.555x2^2＋6. 547x3^2; Y = 0.8649-2.094x1-2.08x2-1.375x3; Y = 0.8649 -2.094x2-2.08x2-1.375x3-3.443x1^2＋6.525x2^2＋6.547x3^2 ; Y =0.8649-2.094x1-2.08x2-1.375x3-10.58x1x2＋8.53x1x3＋1.549x2x3. After comparison it has finally found the best model. In combining with the sample it present a multiple data fitting analysis method which could adjust the fiberglass filter paper model accordingly.

酸对玻纤滤纸性能影响的研究

对于玻纤滤纸,加酸分散纤维是其生产过程中的通用工艺。以往研究侧重于分析酸对于纤维分散效果的影响,重点研究了酸的加入对玻纤滤纸力学性能和过滤性能产生的影响。实验结果表明:酸会与玻璃纤维反应导致纤维表面生成了更多的Si-OH;当玻纤滤纸抄造过程中加酸控制浆料pH为2.5时,使用39°SR和49°SR玻璃棉所抄造滤纸的抗张强度比不加酸时分别高了54%和58%,透气度分别下降了11%和14%,平均孔径分别下降了12%和14%。过滤性能测试结果表明,加酸制备滤纸的液体过滤比要明显高于未加酸制备的滤纸。

厚度对玻纤滤纸过滤性能的影响

通过实验测量过滤纸厚度、过滤效率和阻力,最终确定厚度与过滤性能(a值)的关系。通过实验测试的3种真空度下的滤纸厚度、过滤效率、阻力、a值的数据表明:真空度越小的滤纸,厚度越厚越蓬松,相应的过滤性能a值也越高。

探究油雾浓度对玻璃纤维过滤纸过滤效率的影响

玻璃纤维过滤纸是目前国内外防护器材滤除毒剂及气溶胶的主要过滤材料,过滤效率是考核过滤材料滤除能力的一个关键指标,通常用油雾法对过滤材料的过滤效率进行检测。主要探讨不同油雾浓度对过滤材料过滤效率的影响,对用油雾法检测玻璃纤维过滤纸及其产品有一定的指导意义。

玻纤空气滤纸的产品特点及应用

本文简述了国外玻纤空气滤纸生产技术和产品特点,并概括性的谈了国内新的玻纤滤纸生产技术,并对国外的检测和应用作了概述。希望引起国内滤器生产厂家的关注。