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Study On The Properities Of Trans-1,4-polyisoprene/natural Rubber Blending

Posted on:2011-09-15Degree:MasterType:Thesis
Country:ChinaCandidate:Y R WangFull Text:PDF
GTID:2121360308976075Subject:Polymer Chemistry and Physics
Abstract/Summary:
Double bond, Chain Flexibility and Trans-ordering are the most typical structural characteristics of Trans-1,4-polyisoprene(TPI),With the increase of crosslinking degree, Material sequentially presented thermoplastic,thermoelastic and rubber elasticity. As TPI possessed advantages of less dynamic heat, good fatigue performance and low rolling resistance, and favored by more and more tire researchers.However, the reports in rubber absorbers filed is rare. And this thesis is focused on research of TPI/NR blends performance, in order to provide reference on large-scale use of TPI in rubber absorbers.Firstly, according to the ideas of sulfide cross-linked to the inhibition of crystallization of TPI, crystallization behavior of TPI, which added in different crosslinker, is researched by DSC, and the quantitative relationship between crosslinking agent and crystallization total elimination is concluded. Mo Z S method accurately describes the non-isothermal crystallization kinetics of TPI in first time, and the activation energy of crystallization of TPI is obtained by Kissinger equation.Secondly, by comparing four different mixing methods, different mixing methods will influence the crosslinking degree and dispersion of filler in the rubber matrix of TPI/NR blends, thus affecting mechanical properties and dynamic mechanical properties of vulcanized.Thirdly, study the different types of CB and CB/Silica filled TPI/NR blends performance. Especially for dynamic mechanical properties impact, has innovative discovery, and profound discussions. Also a preliminary investigation of the rheological behavior of CB/Silica filled TPI/NR is included.Finally, the paper discusses mechanical properties, metal adhesion and dynamic mechanical properties of NR/BR/TPI blends.
Keywords/Search Tags:TPI, Rubber damping materials, Non-isothermal crystallization kinetics, Filler network, Dynamic mechanical properties
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