CAJ | 학술논문

目前尚没有国家标准来统一和规范触变性的测试方法，而轻工标准QB/T 1545-1992仍是应用于非金属矿物触变性测试的较为适用的方法之一，但该规范中的方法介绍较为简单，对触变性测试的影响因素（如电解质的添加）未有详细叙述和研究，实际指导性不强。本文依据QB/T 1545-1992，以膨润土和皂石为矿物样品，研究触变性测试方法及其影响因素，重点对电解质最佳用量和陈化时间进行条件试验。结果表明：添加电解质对触变性影响很大，不同矿种及同种矿物的样品在触变性试验中所需的电解质最佳添加量是不同的，测试具体矿物的触变性时，需先对电解质最佳添加量进行条件试验。样品悬浮物的陈化时间对其触变性的测试结果有很大影响。在测试触变性的过程中，应严格按照轻工标准QB/T 1545-1992规定的陈化时间10~12 h，以保证方法精密度要求；若陈化时间过长，其触变性明显增大，触变性已无法计算。本文通过对触变性测试方法中电解质用量和陈化时间两个重要影响因素的研究，可为现有触变性测试方法的改进提供一定的依据。
목전상몰유국가표준래통일화규범촉변성적측시방법，이경공표준QB/T 1545-1992잉시응용우비금속광물촉변성측시적교위괄용적방법지일，단해규범중적방법개소교위간단，대촉변성측시적영향인소（여전해질적첨가）미유상세서술화연구，실제지도성불강。본문의거QB/T 1545-1992，이팽윤토화조석위광물양품，연구촉변성측시방법급기영향인소，중점대전해질최가용량화진화시간진행조건시험。결과표명：첨가전해질대촉변성영향흔대，불동광충급동충광물적양품재촉변성시험중소수적전해질최가첨가량시불동적，측시구체광물적촉변성시，수선대전해질최가첨가량진행조건시험。양품현부물적진화시간대기촉변성적측시결과유흔대영향。재측시촉변성적과정중，응엄격안조경공표준QB/T 1545-1992규정적진화시간10~12 h，이보증방법정밀도요구；약진화시간과장，기촉변성명현증대，촉변성이무법계산。본문통과대촉변성측시방법중전해질용량화진화시간량개중요영향인소적연구，가위현유촉변성측시방법적개진제공일정적의거。
At present,there is no national standard method to regulate the test method of thixotropy. The light industry standard of QB/T 1545-1992 is still available to test the thixotropy of nonmetallic mineral materials. The test method of thixotropy introduced in QB/T 1545-1992 is simple and has no detailed description and research on effect factors,such as the added amount of electrolyte and it is not precise enough to test thixotropy. In this research,the method of thixotropy and its affecting factors,especially the best added amount of electrolyte and the assembly time were studied by testing the thixotropy of three kinds of bentonite samples and one kind of saponite according to the standard of QB/T 1545-1992 . It was found that there was a great impact of added electrolyte on the thixotropy. Different kinds of minerals,even different samples of the same kind of mineral have different optical amounts of electrolyte added into the mineral dispersions. Hereby,the optical amount of electrolyte should be tested for each sample. It was also found that the assembly time of the mineral dispersion has a great effect on thixotropy. The assembly time of 10 to 12 hours should be strictly adhered to,followed by the standard method of QB/T 1545-1992 to obtain good precision. The longer assembly time will increase thixotropy significantly,which cannot be calculated. The method of testing thixotropy and its affecting factors, in order to provide the basis for improvement for existing thixotropy test method are the main focus of this work.