乳液聚合稳定性研究

本文采用正交实验，确定在选用同类乳化剂情况下，影响乳液聚合过程稳定性的最主要因素是乳化剂的用量，并从理论上探讨了适当的乳化剂用量可使乳液聚合过程最稳定。最后，从乳胶粒平均位径的测定结果进一步验证了上述理论．     

ABS接枝用聚丁二烯胶乳的存放稳定性研究

通过跟踪测定不同存放时间下聚丁二烯胶乳（PB胶乳）的pH值、粒径、表面张力、粘度、凝固物含量、机械稳定性等各项物性指标,对PB胶乳的存放稳定性进行了比较深入研究.     

金属纤维烧结毡在过滤与分离行业中的应用

随着高新技术的发展与普及,污染控制领域急待开发新的过滤材料。金属纤维烧结毡正可解决目前现有过滤材料过滤性能所久缺的过滤机能。     

关于高温凝结物的爆破实践

详细描述了冶炼炉内高温凝结物爆破拆除施工工艺。提出炉内喷水强制降温,爆破前测量高温炉内炮孔温度,找出炮孔温度随时间的变化规律,采用隔热药包,确保孔内药包在规定时间内温度不大于60℃。通过对宁夏平罗、惠农等地区铁合金冶炼炉400余次炉内高温凝结物的成功爆破清除验证了施工工艺的正确性。     

不同凝乳时间对Mozzarella干酪品质的影响

凝乳切割强度影响Mozzarella干酪品质,凝乳强度一般通过与之对应的平均凝乳时间(从添加酶到切割凝乳这段时间为凝乳时间)判断。本实验凝乳时间分别设定为30、40、50min,研究凝乳时间对Mozzarella干酪品质的影响。结果表明选用产酸较慢的发酵剂,更长的凝乳时间(切割时更硬的凝乳)导致了干酪中更多的水分含量和更高的干酪产量。同时干酪也具备了更柔软,更光滑均匀的质地。     

Microstructure and Texture of Milk Coagulum of Streblus asper Leaf Extract

Microstructure, texture, and syneresis of Streblus asper leaf extract, calf rennet, and Fromase made milk coagula were investigated. Microstructure of the milk coagulum was assessed by scanning and transmission electron microscopy. Milk coagulum produced with Streblus asper showed a sponge-like structural network and a denser casein network compared with calf rennet and Fromase produced coagula. Streblus asper made coagulum displayed low porosity, low strength, and low syneresis than those of calf rennet and Fromase made coagula. The spong-like structure, low porosity, and low syneresis were attributed to the high proteolytic nature of Streblus asper leaf extact and to interactions of its phenolic compounds.     

Performance of an impact type device for continuous production of paneer

Chhana, a heat-acid coagulated product of milk, is pressed to make paneer. Like Tofu, paneer is extensively used for the preparation of a large number of culinary dishes. For the pressing, chhana was kept in cages made from a special type of screen and the cages were subjected to impact forces. Total amount of energy imparted to chhana during impacts was correlated with reduction of moisture, increase in hardness of pressed chhana and the solid lost through whey from pressed chhana. Rate of change of moisture content, hardness and solid loss with the energy imparted was found to follow first order reaction kinetics. Prototype of an impact type device was made from which compressed blocks of chhana could be taken out at regular intervals. Validity of first order reaction kinetics model was confirmed with the prototype device. Relative deviation percentage between the model and experimental values obtained from the prototype was found to lie between 3.7% and 4.1%.     

高温热凝结构爆破处理方法的探讨

某炼铁厂高炉在生产过程中产生炉瘤,且有厚度逐渐增厚、范围进一步扩大之势,造成高炉有效容积减少、炉况恶化,制约了高炉的生产能力,影响其正常生产。通过近年来对该公司高炉内部积瘤的爆破施工,总结了处理高温炉瘤的多种方法,并进行了对比,提出了同类工程施工可行的施工方案,为类似工程提供了借鉴。