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Reactive extrusion processing coupling reactions

In order to form PTFE polyamide block copolymers high shear rates are necessary under melt processing conditions, to receive a good distribution and a further break down of PTFE micropowder particles. The particle size of the added PTFE micropowder is in the order of 2-8 pm. The crucial point for a successful coupling reaction is the contact between the carboxylic acid groups on the surface of the PTFE microcrystals and the amide groups of the molten polyamide matrix. As a result, a very homogeneous distribution of PTFE in the PA matrix is observed after reactive extrusion [21-23]. [Pg.178]

See other pages where Reactive extrusion processing coupling reactions is mentioned: [Pg.257]    [Pg.299]    [Pg.642]    [Pg.181]    [Pg.1607]    [Pg.387]    [Pg.173]    [Pg.347]    [Pg.1135]    [Pg.253]    [Pg.49]    [Pg.531]    [Pg.317]    [Pg.119]    [Pg.225]    [Pg.142]    [Pg.91]    [Pg.83]    [Pg.345]   
See also in sourсe #XX -- [ Pg.107 , Pg.108 , Pg.109 , Pg.110 , Pg.111 , Pg.112 ]



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Coupled processes

Coupling processes

Coupling reactivity

Extrusion process

Processes reactive

Processing extrusion

Reactivation reaction

Reactive coupling

Reactive processing

Reactive processing extrusion

Reactivity reaction

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