Tester of high-pressure vitrification converting point
A glass transition and testing device technology, applied in the investigation stage/state change, etc., can solve the problems of difficult manufacturing and inability to measure directly, and achieve the effect of overcoming manufacturing
Inactive Publication Date: 2009-07-01
DALIAN UNIV
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[0005] The purpose of the present invention is to provide a high-pressure glass transition temperature testing device, which can have the advantages of the existing high-pressure glass transition temperature testing device, and can overcome the shortcomings of difficult manufacturing and inability to directly measure
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[0016] The following is attached figure 2 And technical scheme, describe the specific embodiment of the present invention in detail.
[0017] attached figure 2 The high-voltage glass transition temperature testing device shown uses a differential transformer as a displacement sensor to directly measure the strain of the specimen. The test device is mainly composed of a differential transformer, a strain frame, a prestress relief mechanism, a high-pressure container, a constant temperature bath 13, a measuring conduit 3 and a connecting steel wire 7. The differential transformer is mainly composed of a differential coil 4 and a differential iron core 5, and its function is to convert the strain of the test piece 9 into an electrical signal for output, which is equivalent to a displacement sensor. The strain frame is mainly composed of a fixed frame 8 , a movable frame 11 and a guide frame 10 . The test piece 9 is clamped between the fixed frame 8 and the movable frame 11 ....
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The invention relates to a high pressure vitrifying transforming temperature testing device. The feature is that it adopts differential strainer as displacement sensor to directly measuring the strain capacity of the sample. The device is mainly made up from differential strainer, straining frame, prestressing force removal structure, high pressure container, and fixed temperature bath, measuring tube and connecting steel wire. The differential strainer is made up of differential winding and differential iron core. Straining frame is made up of fixing frame, active frame and guiding frame. The prestressing force removing structure is made up of fixing iron core and permanent magnet. The high pressure container is made up of container barrel, container top cover and high pressure medium intake. The effect and benefit of the invention is that it is easy to manufacture and would be directly measured. The device would be widely used in testing high molecular material field material capability.'
Description
technical field [0001] The invention belongs to the technical field of chemical machinery and relates to a device for testing the glass transition temperature under high pressure. Background technique [0002] Glass transition temperature is an important property parameter of amorphous polymer materials, which directly affects the process performance and service performance of materials. Therefore, it is very important to establish a simple and practical glass transition temperature test method and means for the processing and treatment of polymers. [0003] There are many methods for glass transition temperature testing, such as dilatometer method, thermal analysis method, nuclear magnetic resonance method, reverse phase chromatography, thermomechanical property method, etc., but there are not many methods suitable for glass transition temperature testing under high pressure. . attached figure 1 It is an existing high-pressure glass transition temperature test device, wh...
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IPC IPC(8): G01N25/12
Inventor 詹世平
Owner DALIAN UNIV