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Development of rubber products rubber blends theory

development of rubber blends theory

modification of rubber blending technology successfully developed, not only has great practical significance, there is great theoretical significance. Rubber blending theory is accompanied by the practice of blending process came into being. Although this theory is still in the process of constant development and improvement, but has showed an important guiding role in practice. Summary of these theories are: ① polymer compatibility theory II rubber compounds of structure theory c rubber blend composition in total of Crosslinking of the polymer theory;©-TPE rubber blends theory.

the implementation of rubber blends and blending modification of progress

when in accordance with blended rubber and synthetic resin State, there are three kinds of blending method: melt blending of these years, Fu l a total of mixed solution.

blends are synthetic rubber or synthetic resins mixed methods after heated to a molten state. Melting and mixing is carried out in a mixing machine or extruder, which is widely used in industrial production methods. Fu l liquid blending is mixing polymer emulsion method, such as NBR/PVC blends.

in recent years, with blended with low molecular weight compounds or oligomers, realization study of rubber modified, more and more attention. These low molecular weight compounds or oligomers generally contain lively, reactive atoms or groups, blends of these atoms or groups in process or blends of the curing process and the rubber molecules grafted, block polymerization or Crosslinking reaction and modification of rubber and thus play a role. The blend of rubber known as reactive ^^ modification.

rubber and low molecular or low poly real total mixed, not only can improved rubber of mechanical strength, also can improved other performance, as natural rubber and Malay anhydride total mixed, generated natural rubber of Malay anhydride received branch copolymer real, makes its sulfide rubber of set stretch stress improve 10 times times above, resistance dynamic fatigue bent times mention high near three a number level, heat aging sex also significantly improved. Low blends of acrylic ester and acrylonitrile-butadiene rubber, in the presence of initiator Crosslinking reaction on the former and the latter not only improves the mechanical strength of acrylonitrile-butadiene rubber also improves the adhesion strength of nitrile rubber and metal.

low molecular weight take care or oligomer translation blends with the rubber products modified, is complementary to the non-response modification technology, with many compounds of low molecular weight oligomers and commercialization, application of this modification is very promising.

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