QUANTITATIVE METHOD OF RESIN COMPONENT

• Main Author: INOUE MASAHITO
• Format: Patent
• Language: English; Japanese
• Published: 21.06.2018
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

PROBLEM TO BE SOLVED: To provide a method for individually determining contents of respective resin components even when the plurality of resin components contained in paste have nearly equal molecular weights and thermal decomposition temperatures.SOLUTION: The quantitative method for individually determining contents of respective resin components in paste including a plurality of resin components and inorganic powder, includes: a dissolution step of mixing the paste and an organic solution and dissolving the plurality of resin components; a separation step of separating the inorganic powder from the solution obtained by the dissolution step and forming a resin solution including the plurality of resin components; a measuring step of measuring the resin solution by pyrolysis gas chromatography and calculating respectively, peak area values of intrinsic pyrolysis products of the respective resin components generated by pyrolysis of the respective resin components; and a quantitative determination step of calculating the contents in the paste from the peak area values obtained in the measuring step on the basis of a calibration curve representing correlation between the contents of the respective resin components and the peak area values of the intrinsic pyrolysis products.SELECTED DRAWING: None 【課題】ペーストに含まれる複数の樹脂成分が同程度の分子量や熱分解温度を有する場合であっても、各樹脂成分の含有量を個別に定量する方法を提供する。【解決手段】複数の樹脂成分と無機粉末とを含むペースト中の各樹脂成分の含有量を個別に定量する定量方法であって、ペーストと有機溶媒を混合し、複数の樹脂成分を溶解させる溶解工程と、溶解工程で得られた溶液から無機粉末を分離し、複数の樹脂成分を含む樹脂溶液を形成する分離工程と、樹脂溶液を熱分解ガスクロマトグラフィで測定し、各樹脂成分の熱分解により生じる各樹脂成分に固有の熱分解生成物のピーク面積値をそれぞれ求める測定工程と、各樹脂成分について、含有量と固有の熱分解生成物のピーク面積値との相関を示す検量線に基づき、測定工程で求めたピーク面積値からペースト中の含有量を算出する定量工程、を有する。【選択図】なし