Today's KNOWLEDGE Share:NITTOBO FLAT FIBER

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Today's KNOWLEDGE Share

So you heard about these Japanese NITTOBO flat fibers and how they significantly reduce warpage…



Thanks to the unique « flake-like » shape, these fibers constrain the cross-flow shrinkage more than usual circular fibers do, leading to superior part flatness.

But did you know that flowability will be significantly enhanced also ?

Given their cross-section, at the same glass volume fraction (say 50% GF by weight) you end-up with much fewer individual particles (one flat fiber has the volume of 3-4 circular fibers) in your polymer matrix.

Since filler-driven increase of viscosity correlates with hydrodynamic radius and displaced fluid, viscosity increases much less with flat fibers when compared to standard circular fibers !

Price tag is a bit higher though.


Source:Vito Leo

Follow: http://polymerguru.blogspot.com


#nittoboflatfiber #glassfiber #plastics #warpage #injectionmolding #viscosity

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