EVALUATING LIGHT AGING OF SOME METAL IONS OF MEDIUM ELEMENTS ON CHARACTERISTICS OF CHEMICAL MECHANICAL PAPERS 2- EFFECT ON PC NUMBER

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NEMATI MOHAMMAD; HEMASI A.H.

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Journal: Year:2007 | Volume:13 | Issue:3 Page(s): 707-724

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Information Journal Paper

Title

EVALUATING LIGHT AGING OF SOME METAL IONS OF MEDIUM ELEMENTS ON CHARACTERISTICS OF CHEMICAL MECHANICAL PAPERS 2- EFFECT ON PC NUMBER

Author(s)

NEMATI MOHAMMAD | HEMASI A.H. | Issue Writer Certificate

Keywords

EOTAQ3

BRIGHTNESSQ3

PHOTO YELLOWINGQ3

CMPQ3

PC NUMBERQ3

Abstract

This research is carried out in order to determine the PC variation of chemimechanical papers produced in the wood and paper factories of Mazandaran when sample treating with metal ions of medium elements and methods of them reading. Two types of chemimechanical paper samples were prepared: bleached and unbleached papers. Samples included two types of treatment. First, the samples were smeared with EOTA in different densities. This process ended in neutralization of existent ions in CMP paper samples. In the second stage treatment, after dehydrating each of the above- mentioned samples that were combined with EOTA, The CMP samples were smeared with solvents including metal ions of medium elements and then put them under the radiance of UV Black Light lamps. One of the objectives of this research was to determine what kind of effect could have different metals on the Aging and Yellowing process. In the final stage, the light specification of samples such as BRIGHTNESS was measured. The highest spoiling effect on the yellowing process was determined to be Fe2+ ion and the lowest effect was issued by Ae3+ ion. For decreasing the effect of each metal ion, increasing the density of EDTA, decreasing the pH of pulps and methods such as methylation methods were suggested.

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References

EFFECT OF METAL IONS ON THE OPTICAL PROPERTIES OF CHEMOMECHANICAL PULP OF HARDWOODS SPECIES

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APA: Copy

NEMATI, MOHAMMAD, & HEMASI, A.H.. (2007). EVALUATING LIGHT AGING OF SOME METAL IONS OF MEDIUM ELEMENTS ON CHARACTERISTICS OF CHEMICAL MECHANICAL PAPERS 2- EFFECT ON PC NUMBER. JOURNAL OF AGRICULTURAL SCIENCES, 13(3), 707-724. SID. https://sid.ir/paper/7744/en

Vancouver: Copy

NEMATI MOHAMMAD, HEMASI A.H.. EVALUATING LIGHT AGING OF SOME METAL IONS OF MEDIUM ELEMENTS ON CHARACTERISTICS OF CHEMICAL MECHANICAL PAPERS 2- EFFECT ON PC NUMBER. JOURNAL OF AGRICULTURAL SCIENCES[Internet]. 2007;13(3):707-724. Available from: https://sid.ir/paper/7744/en

IEEE: Copy

MOHAMMAD NEMATI, and A.H. HEMASI, “EVALUATING LIGHT AGING OF SOME METAL IONS OF MEDIUM ELEMENTS ON CHARACTERISTICS OF CHEMICAL MECHANICAL PAPERS 2- EFFECT ON PC NUMBER,” JOURNAL OF AGRICULTURAL SCIENCES, vol. 13, no. 3, pp. 707–724, 2007, [Online]. Available: https://sid.ir/paper/7744/en

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