摘要本文研究了不同添加剂对钨系延期药的导热系数和燃速的影响。首先用纳米氧化锌、硅酸钙和二氧化钛为添加剂，分别测定它们的导热系数，发现二氧化钛的导热系数很不稳定，故淘汰。然后分别用纳米氧化锌和硅酸钙做为添加剂，按4%、8%、12%的配比制备各种钨系延期药。利用保温技术，通过Hot Disk测试方法和光-光靶法测定了包括基药在内的7种延期药分别在40℃、20℃、0℃、-20℃、-40℃时的导热系数和延期时间。由结果分析可知，纳米氧化锌和硅酸钙的导热系数均小于基药的导热系数，且稳定性较好。添加量为4%纳米氧化锌和添加量为12%硅酸钙的钨系延期药导热系数最小。添加量为%硅酸钙和添加量为12%硅酸钙的钨系延期药在高低温下的燃速稳定性最好。63829

毕业论文关键词：钨系延期药，添加剂，导热系数，燃速

 毕业设计说明书（论文）外文摘要

Title    Low temperature coefficient of tungsten type delay Study 

Abstract This paper studies the different tungsten type delay additives on the thermal conductivity and the impact of burning rate. First with zinc oxide, calcium silicate and titanium dioxide as an additive, the thermal conductivity of them were measured and found that the thermal conductivity of titanium dioxide is very unstable, so eliminated. Then zinc oxide and calcium were used as additives, according to 4%, 8%, 12% ratio of preparing various tungsten type delay. Use thermal technology, through Hot Disk test methods and light - light target determination, including essential drugs, including seven kinds of drugs were postponed at 40 ℃, 20 ℃, 0 ℃, -20 ℃, -40 ℃ when the thermal conductivity and Extension time. The results analysis shows that the thermal conductivity of zinc oxide and calcium-based drugs are less than the thermal conductivity and good stability. Dosage of 4% zinc oxide and calcium silicate dosage 12% tungsten type delay minimum thermal conductivity. Dosage% calcium silicate and calcium silicate dosage of 12% tungsten type delay in the high and low burning rate under the best stability.

      Keywords: tungsten type delay, additives, thermal conductivity, burning rate

1  绪论 1

1．1  研究背景及意义 1

1.2  延期药概述 1

1.2.1  延期药的组成 1

1.2.2  钨系延期药的组成 3

1.2.3  延期药的燃速和导热系数 3

1.2.4  分析钨系延期药性能的方法 4

1.3  添加剂 5

1.4 本论文的研究内容 5

2 钨系延期药的制备及保温实验 6

2.1  钨系延期药的制备 6

2.1.1  原料 6

2.1.2  钨系延期药的配方确定 7

2.1.3  样品制备 7

2.2  钨系延期药的温度实验 8

3 钨系延期药导热系数的研究 9

3.1 实验方法 9

3.2  基药及添加剂的导热性能分析 10

3.2.1  密度计算 10

3.2.2  导热系数测定 11

3.3 纳米氧化锌对延期药的导热性能影响