CAJ | 학술논문

采用低温熔融法制备不溶性硫磺，并采用气化温度低、气化潜力大的无水乙醇/干冰作为淬冷剂。比较了水和无水乙醇/干冰作为淬冷剂对不溶性硫磺的淬冷效果，研究了无水乙醇/干冰的温度和用量对不溶性硫磺的淬冷效果的影响。实验结果表明，无水乙醇/干冰的淬冷效果好于水。温度为-30 oC 的无水乙醇/干冰，硫磺(g)：无水乙醇(mL)=1：10（质量：体积）的淬冷效果最好，120 oC /15 min 的热稳定到达40.84%。通过 DSC 实验测出不溶性硫磺的熔点为124.68 oC。通过 XRD 谱图证明合成的为不溶性硫磺。
채용저온용융법제비불용성류광，병채용기화온도저、기화잠력대적무수을순/간빙작위쉬랭제。비교료수화무수을순/간빙작위쉬랭제대불용성류광적쉬랭효과，연구료무수을순/간빙적온도화용량대불용성류광적쉬랭효과적영향。실험결과표명，무수을순/간빙적쉬랭효과호우수。온도위-30 oC 적무수을순/간빙，류광(g)：무수을순(mL)=1：10（질량：체적）적쉬랭효과최호，120 oC /15 min 적열은정도체40.84%。통과 DSC 실험측출불용성류광적용점위124.68 oC。통과 XRD 보도증명합성적위불용성류광。
Insoluble sulfur was prepared by low temperature melting method with the mixture of anhydrous alcohol and dry ice as quenching agent. Quenching effects of water and the mixture of anhydrous alcohol and dry ice as quenching agent for insoluble sulfur were compared; effect of temperature and content of the mixture of anhydrous alcohol and dry ice on quenching effect for insoluble sulfur was investigated. The results show that quenching effect of the mixture of anhydrous alcohol and dry ice is better than that of water. When the temperature is -30 oC, sulfur(g):anhydrous alcohol/dry ice(mL)=1:10,the best quenching effect can be obtained. The maximum thermal stability of insoluble sulfur can reach to 40.84% under the condition of constant 120 oC for 15 min. Melting point of IS is 124.68 oC.