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Styrene in the HDPE-g-TMI role in graft copolymers

Dose of 5 interactive heart-shirts 4j 32l = open when the Mountain King said 0.000.050.100.150.200.250.300.350.400.45 bond strength / MPa Figure 4SBS adhesive bond strength of Fig. 4SBSadhesivecakingintensity resin content, g Figure 5 resin content and shear strength rig. 5Therelationetweenresin'scontentandshearingstrength test tackifying resin used is a multi-mixed resin. Can be seen from Figure 5. Solution in the adhesive mixture of tackifying resin used in the amount of \. StrategiesforMaximizingFree-radicalGraftingReactionYield】【J. JournalofAppliedPolymerScience, 2003,88 (7): 1799 ~ l8o7 [3】 Xie Xu-Ming, Li Ying, aging effect, and so on. a styrene maleic anhydride grafted polypropylene and impact properties of [J ]. Polymer, 2002, (1): 7 ~ 12 [41 Yang Su, Yang Suping, Zhou Zheng Asia, and so on. by Fr-IR infrared spectroscopy determination of the methyl content of polyethylene copolymer】【J. IR Monthly,[link widoczny dla zalogowanych], 2005,[link widoczny dla zalogowanych],9:9 ~ 14 for the 5g, the glue bond strength was the maximum. But when the resin reached 6g, the adhesive bond strength significantly. This is because the excessive amount of tackifying resin, Although the increased adhesive tack. but decreased cohesion, and is stuck at the same time make the compatibility between the increase,[link widoczny dla zalogowanych], resulting in decreased bond strength,[link widoczny dla zalogowanych], and due to SBS's outstanding performance two-phase separation structure,[link widoczny dla zalogowanych], so the amount of mixing not too large. The experiment measured, the amount of mixed resin 5g, the substrate is the amount of SBS 2.5 times better. 3 Conclusions (1) MAH modified SBS SBS can effectively enhance the polarity of the adhesive to improve bonding strength. SBS modified the adhesive strength of up to 0.45894MPa, unmodified SBS for the 0.195833MPa. increased 42,6%. (2) the modified SBS infrared spectrum, characteristic absorption peaks of the C = O , C-O-C demonstrated the presence of MAH grafted onto the SBS on the well, thus demonstrating the success of graft trial. (3) mixed type tackifying resin can effectively increase the SBS adhesive bond strength, dosage 2.5 times the base material when the best.
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