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A method and device for measuring the glass transition temperature of a resin cast body

A glass transition and resin casting technology, applied in the investigation phase/state change and other directions, can solve the problems of high cost, complexity and low demand, and achieve the effect of low equipment cost, small reading error and good reproducibility

Inactive Publication Date: 2018-10-09
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, for some practical application fields (for example, building material testing units), the DSC method in the prior art is more complicated to implement, the cost is higher, and the demand is not large

Method used

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  • A method and device for measuring the glass transition temperature of a resin cast body
  • A method and device for measuring the glass transition temperature of a resin cast body
  • A method and device for measuring the glass transition temperature of a resin cast body

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Embodiment Construction

[0042] In order to make the technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] figure 1 It is a structural schematic diagram of a device for measuring the glass transition temperature of a cast resin body in an embodiment of the present invention. like figure 1 As shown, the device for measuring the glass transition temperature of the cast resin in the embodiment of the present invention includes: an oil bath 11, a dilatometer 12, a thermometer 13 and a recording device 14;

[0044] The oil bath pot 11 includes a heater 111 and a pot 112 body, the pot body 112 is provided with oil, and the heater 111 is used to add the pot body 112, so that the temperature of the oil liquid remains preset constant temperature;

[0045] The dilatometer 12 includes a capillary 121 and a sample cell 122, the upper end of the sample c...

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Abstract

The invention provides a method and device for measuring the glass transition temperature of a resin casting body. The device comprises an oil bath pan, a dilatometer, a thermometer and a recording device. The oil bath pan comprises a heater and a pan body; oil is arranged in the pan body, and the heater is used for heating the pan body to keep the oil at the preset constant temperature. The dilatometer comprises a capillary tube and a sample pool, a ground opening is formed in the upper end of the sample pool, and the capillary tube is inserted into the sample pool in a sealed mode through the ground opening; the sample pool is used for containing sample grains and liquid media; the sample pool of the dilatometer and the lower end of the thermometer are both immersed into the oil of the oil bath pan. The recording device is arranged on one side of the oil bath pan and used for automatically recording and outputting the height of the liquid level in the capillary tube of the dilatometer and the temperature of the oil in the oil bath pan according to preset triggering conditions. By means of the method and device, the glass transition temperature of the resin casting body can be accurately measured, operation is easy, and device cost is extremely low.

Description

technical field [0001] The invention relates to the technical field of polymer glass transition temperature evaluation, in particular to a method and device for measuring the glass transition temperature of a resin cast body. Background technique [0002] Glass transition temperature is a characteristic index to measure the use of polymer materials, and is an important parameter of amorphous polymer materials. In conventional adhesive testing, involving the use of the standard GB / T 2567-2008 "Resin Casting Body Performance Test Method", the internal stress must be eliminated at the glass transition temperature. At present, there are many methods for determining glass transition temperature, such as dilatometer method, thermal analysis method, nuclear magnetic resonance method, thermomechanical property method, reverse chromatography and so on. [0003] During the glass transition process, various parameters such as thermal, mechanical, mechanical, and electrical changes wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/12
CPCG01N25/12G01N25/04
Inventor 郭增荣赵宇吴双九张新焦昌
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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