title: A simple constrained uniaxial tensile apparatus for in situ investigation of film stretching processing.
abstract: A simple constrained uniaxial tensile apparatus was designed and constructed to obtain stress-strain curve during stretching and subsequent structural evolution of polymeric films. Stretch is carried out through two motor driven clamps in the machine direction and scissor-like clamps in the transverse direction keeping the sample width constant. The force information during film stretching process is recorded by a tension sensor and structural evolution can be obtained by in situ X-ray scattering technique. All parameters related to film stretching manufacturing, such as temperature, draw ratio, and stretching speed can be set independently, making the apparatus an effective method to explore the relationship between processing parameters and structure.
authors.affiliation: National Synchrotron Radiation Lab and College of Nuclear Science and Technology, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei, China.
authors.forename: Lingpu
authors.initials: L
authors.lastname: Meng
authors.forename: Jing
authors.initials: J
authors.lastname: Li
authors.forename: Kunpeng
authors.initials: K
authors.lastname: Cui
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Chen
authors.forename: Yuanfei
authors.initials: Y
authors.lastname: Lin
authors.forename: Jiali
authors.initials: J
authors.lastname: Xu
authors.forename: Liangbin
authors.initials: L
authors.lastname: Li