Constant width film stretching device combined with X-ray scattering, and experimental method thereof

A technique of stretching device and experimental method, which is applied in material analysis using radiation diffraction, etc., can solve the problem of less research on extensional flow, and achieve continuous adjustment of stretching rate and stretching ratio, precise control, easy disassembly, and easy disassembly. The effect of installation

Active Publication Date: 2013-04-24
UNIV OF SCI & TECH OF CHINA +4
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Problems solved by technology

[0003] Although there have been a lot of accumulations on flow field-induced crystallization, most of them use shear flow field, and there are relativ...

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  • Constant width film stretching device combined with X-ray scattering, and experimental method thereof
  • Constant width film stretching device combined with X-ray scattering, and experimental method thereof
  • Constant width film stretching device combined with X-ray scattering, and experimental method thereof

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing and embodiment further illustrate the present invention.

[0042] A constant width film stretching device combined with X-ray scattering, see attached figure 1, The high-precision servo motor 1 drives the ball screw 2 to move, and converts the motor rotation into linear motion. The ball screw drives the movement of the longitudinal chuck 5 to realize the stretching of the film sample 6 . The running speed is continuously adjustable, which can well match the response of different materials to the stretching speed. 4 is the horizontal chuck, using a scissors mechanism, which not only ensures that the width of the sample remains constant during stretching, but also satisfies the uniform movement of the chuck point with the sample without interfering with the longitudinal stretching of the sample. During the stretching process, the tension sensor 3 tracks the tension change. This device uses the Labview software control syst...

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Abstract

The invention provides a constant width film stretching device combined with X-ray scattering, and an experimental method thereof. The device employs two Yaskawa servo motors to drive a ball screw to stretch a sample. The rotation of the motors is controlled by a Labview software. One end of the device is configured to a tension sensor for tracking tension change during a stretching process. During the stretching process, scissor mechanism fixtures are employed perpendicular to the stretching direction, so as to guarantee that the width of the sample can be kept constant during the stretching process and chuck points move uniformly along with the sample. The device employs a forced nitrogen stream to equalize temperature distribution in a sample cabin and reduce thermal degradation of the sample at a high temperature. Two temperature monitoring points are pre-set in the sample cabin. The temperature is precisely controlled by the temperature controller. The device has the advantages of easy disassembly and assembly and the like, is very suitable for combination with synchrotron radiation line stations, and is a very good device for studying the relationship between a structural evolution behavior and the film properties in film stretching and processing.

Description

technical field [0001] The present invention relates to a technique for studying the relationship between the structural evolution of polymer films and external field parameters by using synchrotron radiation X-ray scattering, in particular to a constant width film stretching device and its experimental method combined with X-ray scattering, capable of studying different film samples Structural evolution behavior under different stretching temperatures, different stretching rates and stretching ratios. Coupling the crystallinity and orientation degree of the thin film sample obtained by X-ray scattering with the tensile mechanical data can obtain the relationship between the external field parameters and the structural properties of the thin film. It is used in the laboratory to simulate the actual film stretching processing conditions and reveal the scientific problems of film industrial processing. Background technique [0002] In the stretching process of polymer film, w...

Claims

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Application Information

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IPC IPC(8): G01N23/20
Inventor 李良彬孟令蒲崔昆朋李静
Owner UNIV OF SCI & TECH OF CHINA
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