Uniaxial or biaxial film orientation and stretching can improve the dielectric breakdown strength of many polymers, particularly semicrystalline polymers such as polypropylene, PVDF, PET, PPS, PEEK, PEN, etc.
We developed two kinds of lab scale film stretching machines for research and development in functional polymer film products.
A small stretching machine that can stretch up to 300 mm long film (1 mm - 200 mm wide) film.
A table-top machine direction orientation machine (MDO) that can stretch small rolls of polymer film > 100 m long (up to 300 mm wide) in a continuous roll-to-roll process
Please contact us if you are interested. firstname.lastname@example.org
This machine has two stepper motors whose speed and direction can be controlled by LabView program. A hot wire (resistive heating) is used to warm up the film on top of it and only the warm film zone is stretched with minimal necking.
It can be used to produce stretched thin polymer film, such as capacitor film, piezoelectric film, pyroelectric film, membrance, etc.
Mostly used for semicrystalline polymers such as PP, PE, PVDF, PPS, PET, PEN, PEEK, etc. In this video, PVDF homopolymer film is being stretching at 500%. the distance between two marked lines is 10 mm before stretching.
come with a refurbished laptop with control software.
Youtube video on how the machine works: