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Prepartion of HMPSA for Label and Study of Influencing Factor on the Properties of HMPSA
Author: HeQinLing
Tutor: LinZhongXiang
School: Nanjing Forestry University
Course: Chemical processes
Keywords: Label HMPSA Styrene-based thermoplastic elastomer Tackifying resin Differential scanning calorimetry
CLC: TQ436.3
Type: Master's thesis
Year: 2010
Downloads: 155
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Abstract
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Hot melt pressure sensitive adhesive (HMPSA) will appear in the label application quality is unstable , oil leakage and other problems , making the label wrinkling , while Alice, loss and other phenomena , especially protection of the quality of their products . The best choice of tackifying resin and hot melt pressure sensitive adhesive performance influencing factors analysis and get the label HMPSA best recipe . The results show that : the tag HMPSA preferred tackifying resin is a softening point of 100 ° C or about terpene resins and rosin pentaerythritol ester ; naphthenic oils tags HMPSA initial tack , and the permeability of the greatest impact ; orthogonal optimal formula SIS -A : naphthenic oil 4010: tackifying resin = 30:25:50 (mass ratio) . Styrene-based thermoplastic elastomer (SIS) also studied the influence of structural variables on HMPSA performance . The study showed that: styrene content increased by 14% to 30% , softening point from 75 ℃ to rise to 89 ° C , 180 ° peel strength was increased by 5.6 N · cm-1 to 8.4 N · cm -1 , initial tack by 2.2 cm reduced to 5.4 cm; diblock SI content was raised to 38 % from 7% , 180 ° peel strength of from 4.2 N · cm-1 increased to 10.1 N · cm -1 ; melt flow index (MI) by 8 g / 10min elevated to 25 g/10min , 175 ° C melt viscosity is decreased by 9200 mPa · s to 2200 mPa · s . Finally, using differential scanning calorimetry (DSC) study of the various tackifying resin and the elastomer compatibility . Study found that: a DSC curve of the elastic body is adequately reflected the typical microstructure of two-phase separation structure ; different from the linear relationship between the different types of tackifying resin softening point and its Tg ; tackifier resin into the SIS different phase of its two phase Tg .
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CLC: > Industrial Technology > Chemical Industry > Adhesive Industry > Various properties of adhesive > Pressure-sensitive adhesive
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