CAJ | 학술논문

发展了一种聚酯多元醇,可望应用于制备新型的直焊性耐热漆包线漆.采用间苯二甲酸、己二酸、乙醇胺或乙二醇、三乙醇胺或甘油,通过熔融共缩聚合成一系列聚酯多元醇,然后用甲醚化氨基树脂及溶剂混合、配制成溶液,再涂制成漆包线.研究结果表明系列聚酯多元醇的分子量、酸值均符合漆包线漆制备的技术要求;采用乙醇胺代替乙二醇、三乙醇胺代替甘油在聚酯多元醇的合成反应中具有较高的缩聚反应活性,由此制备的聚酯多元醇具有在 350℃至400℃的范围内更快速分解和分解残渣较少的特点,采用此聚酯多元醇作为主要成分、涂制的漆包线在 400℃至 460℃范围内下可直焊,介质损耗曲线的拐点温度可达到162℃、意味着耐热等级较高.
발전료일충취지다원순,가망응용우제비신형적직한성내열칠포선칠.채용간분이갑산、기이산、을순알혹을이순、삼을순알혹감유,통과용융공축취합성일계렬취지다원순,연후용갑미화안기수지급용제혼합、배제성용액,재도제성칠포선.연구결과표명계렬취지다원순적분자량、산치균부합칠포선칠제비적기술요구;채용을순알대체을이순、삼을순알대체감유재취지다원순적합성반응중구유교고적축취반응활성,유차제비적취지다원순구유재 350℃지400℃적범위내경쾌속분해화분해잔사교소적특점,채용차취지다원순작위주요성분、도제적칠포선재 400℃지 460℃범위내하가직한,개질손모곡선적괴점온도가체도162℃、의미착내열등급교고.
In order to develop the enameled wire with good heat resistance and direct tin solderability, using m-phthalic acid, adipate, glycol or ethanolamine and glycerol or tri-ethanolamine, serial polyester polyols were synthesized by melt co-polycondensation reaction. The synthesized polyester polyols were then mixed with methanol-etherfied amino resin and solvent to form the enameling solutions used for coating copper wire to prepare the enameled wires. The results show that the molecular weights and the acid values of the synthesized polyester polyols satisfy the technical requirement of the enameled wire preparation. It was found that, during melt co-polycondensation, using ethanolamine instead of glycol or using tri-ethanolamine instead of glycerol, the polycondensation reaction activity increases; and during temperature range of 350～400℃, the pyrolyses of the synthesized polyester polyols become faster and with less pyrolysis residue. The enameled wires prepared by using most of the above enameling solutions have good direct tin solderability at 400～460℃, and the inflexion point temperature of their dielectric loss curves can reach 162℃; It means that the enameled wires prepared can have a higher heat resistant class.