SU396599A1 - METHOD FOR DETERMINING THE DEGREE OF SEWING POLYL / ERIC MATERIAL MOLECULES - Google Patents

METHOD FOR DETERMINING THE DEGREE OF SEWING POLYL / ERIC MATERIAL MOLECULES

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Publication number
SU396599A1
SU396599A1 SU1732624A SU1732624A SU396599A1 SU 396599 A1 SU396599 A1 SU 396599A1 SU 1732624 A SU1732624 A SU 1732624A SU 1732624 A SU1732624 A SU 1732624A SU 396599 A1 SU396599 A1 SU 396599A1
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SU
USSR - Soviet Union
Prior art keywords
degree
determining
polyl
sewing
molecules
Prior art date
Application number
SU1732624A
Other languages
Russian (ru)
Inventor
Ю. В. хов И. Б. Пешков Ю. М. Котт
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Publication date
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Priority to SU1732624A priority Critical patent/SU396599A1/en
Application granted granted Critical
Publication of SU396599A1 publication Critical patent/SU396599A1/en

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  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Description

1one

Изобретение касаетс  неразрушающего контрол  материалов и может быть предназначено дл  определени  степени сшивани  молекул полимерного материала, например, в процессе сшивани  электрических проводов с целью оптимизации технологических режимов . В частности, способ может быть использован дл  корректировки режимов сшивани  изол ции эмальпроводов.The invention relates to non-destructive testing of materials and may be intended to determine the degree of cross-linking of molecules of a polymeric material, for example, in the process of cross-linking electrical wires in order to optimize process conditions. In particular, the method can be used to adjust the crosslinking modes of the insulation of enamel conductors.

Известен способ определени  степени сшивани  молекул полимерного материала, основанный на измерении интенсивности фотолюминесценции с последующим сравнением с эталоном.A known method for determining the degree of crosslinking of molecules of a polymeric material is based on measuring the intensity of photoluminescence followed by comparison with a reference.

Дл  получени  эталонов специально приготавливают образцы полимера с различной степенью сшивани , которую оценивают по физическим свойствам, например механической прочности. Затем наход т качественную коррел цию между основными физическими свойствами полимера и интенсивностью фотолюминесценции . Име  коррел цию по интенсивности фотолюминесценции, определ ют степень сшивани  полимера. Однако у различных партий одного и того же полимера, имеющего одинаковую степень сшивани , абсолютные значени  интенсивности фотолюминесценции могут значительно отличатьс  (на величину «фона) из-за различных люминесцентных свойств сырь , примен емого дл  изготовлени  полимера, что не позвол ет определить степень сшивани  молекул полимера с достаточной степенью точности.To obtain standards, samples of polymer with varying degrees of cross-linking are specially prepared, which are evaluated for physical properties, such as mechanical strength. Then, a qualitative correlation between the main physical properties of the polymer and the photoluminescence intensity is found. Having a correlation in photoluminescence intensity, the degree of crosslinking of the polymer is determined. However, for different batches of the same polymer having the same degree of crosslinking, the absolute values of the photoluminescence intensity may differ significantly (by the amount of background) due to the different luminescent properties of the raw material used to make the polymer, which makes it impossible to determine the degree of crosslinking of the molecules polymer with a reasonable degree of accuracy.

Целью изобретени   вл етс  повышение точности.The aim of the invention is to improve the accuracy.

Дл  этого образец подвергают воздействию фиксированного количества тепла, регистрируют изменение пнтенсивности фотолюминесценции после охлаждени  образца и по нему суд т о степени сшивани  молекул по; лимерного материала.To do this, the sample is exposed to a fixed amount of heat, the change in photoluminescence intensity is recorded after the sample is cooled, and it is judged on the degree of cross-linking of the molecules by; dimensional material.

Определ ют зависимости электрической и механической прочности полимера от степени сшпванп  молекул и представл ют их в графическом виде. Определ ют также зависимости интенсивностей фотолюминесценции образцов полимера, обладающих различными степен ми сшивани  как в исходном состо нии , так и после термообработки разными фиксированными дозами тепла. Затем определ ют функцию коррел ции между изменени ми интенсивностей фотолюминесценции после термообработки и степенью сшивани  молекул.The dependences of the electrical and mechanical strengths of the polymer on the degree of spshanpine molecules are determined and presented in graphical form. The dependences of the photoluminescence intensities of polymer samples with different degrees of crosslinking both in the initial state and after heat treatment with different fixed doses of heat are also determined. The correlation function is then determined between changes in photoluminescence intensities after heat treatment and the degree of crosslinking of the molecules.

Предмет изобретени Subject invention

Способ определени  степени сшивани  молекул полимерного материала, заключающий30 с  В том, что из.мер ют интенсивность фото34The method for determining the degree of cross-linking of molecules of a polymeric material, comprising 30 sec. In that the intensity of photo34 is measured.

люминесценции образца материала и сравни- чества тепла, регистрируют изменение интенвают ее с эталоном, отличающийс  тем, что,сивности фотолюминесценции после охлаждес целью повышени  точности, образец под- ки  образца и по нему суд т о степени сшивергают воздействию фиксированного коли-вани  молекул полимерно7о материала.luminescence of a sample of the material and the comparison of heat, register the change in intensity with a standard, characterized in that, after cooling to increase accuracy, the sample is placed under the sample and is judged by the degree of sticking to the fixed number of polymer molecules .

396599 396599

SU1732624A 1971-12-31 1971-12-31 METHOD FOR DETERMINING THE DEGREE OF SEWING POLYL / ERIC MATERIAL MOLECULES SU396599A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1732624A SU396599A1 (en) 1971-12-31 1971-12-31 METHOD FOR DETERMINING THE DEGREE OF SEWING POLYL / ERIC MATERIAL MOLECULES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1732624A SU396599A1 (en) 1971-12-31 1971-12-31 METHOD FOR DETERMINING THE DEGREE OF SEWING POLYL / ERIC MATERIAL MOLECULES

Publications (1)

Publication Number Publication Date
SU396599A1 true SU396599A1 (en) 1973-08-29

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