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Re-inforced extrusion of pvc-replacement, delayed-kinking, non-collapsing tubing (NK-TUBE)

Objective


A prototype melt phase extrusion system developed to a stage where two materials can be combined and rotated in that one of the materials forms a helical form. Tool engineered to provide sealing against polymers at high pressures and allow low friction rotation of bearing faces around the functional element of the system. Further development of the prototype tool required to optimise the manner in which the two materials are kept distinct within the structure.

Design and manufacture of a test system for quantification of delayed kinking performance of a range of polymers in tube form. System allows accurate comparison of kink performance of tubes (in trials, medical catheter tube) with respect to point of kink initiation, rate of kink propagation, point of 50% flow and point of 100% flow reduction (zero flow). Believed to be the first test that provides accurate means of comparison between materials supplied into the tube market. Test rig to be used to establish and develop performance of existing tube materials and to quantify the performance of products made on the prototype tooling once further developed.

Identification, through scientific analysis, of significant correlation between specific material properties and good kink performance. Certain material properties, contrary to widespread opinion within industry, identified as not having significant correlation with kink resistance. Knowledge gained to be used to further develop chemistry of polymer materials with the aim of developing a cost effective high performance alternative to PVC using phalate plasticisers.

Call for proposal

Data not available

Coordinator

TOTAX-PLASTIC AS
EU contribution
No data
Address
22,Staktoften 22
2950 VEDBAEK
Denmark

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Total cost
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Participants (5)