The properties of UHMW-PE film produced by hot compression molding and films modified by acid and anti-static agent were characterized. The results showed that: a) the thickness distributing of the film which processing by calendar rolling with conventional design roller is inhomogeneity; the tensile strength was 37.22 MPa, the elongation at break was 368.00%; the transmittance increases with wavelength redshift shows short-wave absorption and long-wave transmission; initial temperature of dissociation is 320°C; the surface resistance 1010 Ω and maximum is higher than 1016 Ω. b) Acid modification the surface of UHMW-PE film moderates the surface antistatic performance. C) After modified the film with external anti-static agent, the surface resistance was around 107Ω, but anti-static properties loss rapidly after friction. If modified the film with internal anti-static agent, the surface resistance was around 1010 Ω and have a long-lasting anti-static effect.
New initiator of FFM6 is used to initiate the acrylic emulsion polymerization. The influences of concentration of FFM6 (c[I]) and polymerization temperature (T) on polymerization reaction rate (Rp) were discussed. Rp is proportional to (c[I])1.4 which is different with classical emulsion polymerization whose Rp is proportion to (c[I])0.4, that indicate polymerization mechanism of the reaction in the study is different with classical mechanism. The value of Ea, 56.4 kJ/mol, is lower than the value of general radical polymerization’s Ea (80.0-96.0 kJ/mol), which indicates the FFM6 can initiate acrylic emulsion polymerization at a lower temperature compared with the other kinds of initiator.
In this paper, we studied the influence of the amount of alkyl glycosides emulsifier, reaction temperature and the amount of initiator on emulsion polymerization kinetics. The results show that when we apply the new alkyl glycosides emulsifier in acrylic emulsion polymerization, the relationship between polymerization rate Rp and emulsifier concentration [S] is Rp∝[S]0.70 and the correlation coefficient is 0.93; the relationship between polymerization rate Rp and the initiator concentration [I] is Rp∝[I]1.00 and the correlation coefficient is 0.86; the apparent activation energy of polymerization is 32.34KJ/mol and the correlation coefficient is 0.93. We got good results after applying the new type emulsifier in acrylic emulsion polymerization.
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