2009
DOI: 10.1002/app.29570
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Water‐blown soy polyol based polyurethane foams modified by cellulosic materials obtained from different sources

Abstract: This article deals with the effect of cellulosic fiber from commercially available writing paper, bleached kraft pulp, and commercially available rice flour on the foaming of polyurethane based on polyol derived from soy bean oil. The presence of cellulosic materials was observed to have a notable influence on the density of the foams. Changes in the density of different foams were correlated with possible chemical structures generated in the presence of the fiber and were analyzed by Fourier transform infrare… Show more

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Cited by 19 publications
(24 citation statements)
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“…The transition temperatures of the systems based on BiSPU and BiSPU-93A-5, as observed from DSC analysis, are reported in Table 2. The DSC trace shows two transitions, one at lower temperature at À65.4 C is related to b-transition and the other at higher temperature corresponds to the primary or glass-transition temperature T g at 66.4 C. The observed transitions of a soy-based polyurethane are supported by the literature [10,13] and also reported in earlier communications [2][3][4] .…”
Section: Resultssupporting
confidence: 76%
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“…The transition temperatures of the systems based on BiSPU and BiSPU-93A-5, as observed from DSC analysis, are reported in Table 2. The DSC trace shows two transitions, one at lower temperature at À65.4 C is related to b-transition and the other at higher temperature corresponds to the primary or glass-transition temperature T g at 66.4 C. The observed transitions of a soy-based polyurethane are supported by the literature [10,13] and also reported in earlier communications [2][3][4] .…”
Section: Resultssupporting
confidence: 76%
“…The concentration of all ingredients has been expressed in parts per hundred parts of polyol, php. As in our previous work [2][3][4] , the time of stirring has been observed to be important in affecting the changes in foam properties, and varied from 5 to 20 min. As a prominent change is noted at higher time of stirring (20 min), the same has been maintained in the present work while processing foams with various levels of filler.…”
Section: Experimental Materialsmentioning
confidence: 92%
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“…Banik et al [5] studied the effect of cellulosic fiber from commercially available writing paper, bleached kraft pulp and rice flour on the properties of PUF. The compressive strength of modified samples was higher than that of the reference sample.…”
Section: Introductionmentioning
confidence: 99%