The water resistance of modified polyurethane was remarkably improved, with its water absorption rate less than 3%.
改性后的聚氨酯其耐水性得到明显提高,吸水率降至3%以下。
Many properties of material were tested, such as mechanical property, surface water contact Angle, water absorption rate, infrared spectrum and ESCA analysis.
测试了材料的力学性能、表面接触角、吸水率,同时对材料进行了表面电子能谱(esca)分析。
In addition, water absorption rate of high strength lightweight aggregate in concrete under pressure decreases with its initial containing water rate increasing.
此外,陶粒在混凝土中的压力吸水率随其初始含水率的增大而减小。
However, there are also some problems to be notified for further wheat quality improvement that flour water absorption rate is relative lower, dough stable time relatively shorter.
面粉吸水率偏低、面团稳定时间较短是今后小麦品种品质改良中值得注意的问题。
The material has good flexibility, low water absorption rate, high glass transition temperature and fine heat-resisting performance, thereby having better market prospects and economic benefit.
该材料柔韧性好、吸水率低、玻璃化转变温度高以及耐热性能优良,因而具有较好的市场前景和经济效益。
The scaffolds were investigated by histological staining, SEM observation and porosity measurement, water absorption rate analysis. MTT test was also done to assess cytotoxicity of the scaffolds.
冷冻冻干后,对支架材料进行组织学及扫描电镜观察,测定支架孔径和孔隙率、吸水率,并采用MTT法分析支架浸提液毒性。
Under this condition, synthetic resin at room temperature measuring absorption deionized water rate.
在此条件下合成的树脂于室温下测吸去离子水的倍率。
In salt water the composites had less water absorption, absorption rate and diffusion coefficient than that in di water.
与在去离子水中相比,材料在盐水中饱和吸水率、初始时吸水速率和水扩散系数较小。
Common cations in soil could make obviously absorption rate of water of high water-absorbing resin reduce.
土壤中常见阳离子对高吸水树脂吸水率具有很强的降低作用。
The rate of water absorption and oil absorption in microporous starch, cross-linked microporous starch and microporous esterified starch significantly increased.
其中微孔淀粉、微孔交联淀粉、酯化微孔淀粉的吸水率、吸油能力明显上升。
ASTM D570 Standard Test Method for Water Absorption of Plastics scope:this test method covers the detetmination of the relative rate of absorption water by plastics when immersed.
ASTMD570塑料吸水率的标准试验方法简介:ASTM D570包括了塑料在浸水时相对吸水率的试验方法。
The present situation of liquid absorption rate of super water absorption polymer and its measurement method has been summarized.
对吸液率测定中浸泡用水量和浸泡时间的影响作了探索。
The equilibrium water content of the solids for drying, the number of mass transfer units for gas absorption and mass flow rate for heat transfer system were obtained using MATLAB.
用MATLAB计算食品过程中的物料平衡含水量、气体吸收的传质单元数和传热过程的调节,研究基于MATLAB的非线性方程、非线性方程组的求解和数值积分功能的应用。
The newsprint absorbs less water along with the increment of IPA content in fountain solution at the same time, and the absorption rate decreases with the increase of IPA.
在相同的时间内,新闻纸吸水量随着润版液中异丙醇含量的增加而减少,吸水速率随着异丙醇含量的增加而减小。
Using tri-functionality polyoxytrimethylene alcohol ether and polyethylene glycol, synthetize polyurethane elastomer with water absorption expansion rate of0~200%.
采用三官能度的聚氧化丙烯醚醇、聚乙二醇,合成了吸水膨胀率在0~200%的聚氨酯弹性体。
The microstructure and porosity were observed under scanning electron microscope, and the pore diameter, rate of water absorption, and surface density were determined.
以扫描电镜观察支架的表面特征,测定支架的孔径值、材料的吸水率及表观密度。
The qualities of extrusion products include some physical and nutritional characteristics, for example, expansion rate, water absorption, texture, etc.
膨化产品质量的评价指标包括膨化率、吸水性和质构等物性指标,以及产品的营养成分。
Real water injection rate in water injection well will change when system pressure fluctuates or formation water absorption capacity changes.
注水井实际注水量随系统压力波动或地层吸水能力的变化而改变,这是针型阀或井下固定水嘴无法避免的缺陷。
The results showed that the Ammonium Ceric Nitrate used as initiator is high effective, the rate of polymerization reaction is satisfactory and the capacity of water-absorption for the resin is high.
结果表明:硝酸铈铵引发剂的引发效率高,聚合速度快,树脂的吸水能力强。
The authors also investigate such properties as liquid absorbability, absorption rate, water retention of the product to distilled water, salt solution and imit…
考察了产物对蒸馏水、食盐溶液以及模拟尿的吸液能力、吸液速率和保水能力等性能。
With cotton soft, silky luster, hemp of smooth, and the water absorption, permeability were superior to cotton, has higher dyeing rate, fabric color bright and full.
具有棉的柔软、丝的光泽,麻的滑爽,而且其吸水、透气性能都优于棉,具有较高的上染率,织物颜色明亮而饱满。
Through studying, it was found that pre-treatment and preservative solution increased water absorption ability and decreased water loss, which extended the vase life and increased the flower rate.
预处理和瓶插液提高了切花的吸水能力和耐脱水能力,因此切花寿命延长,开花率提高。
When testing shale physics and chemistry properties, we mainly chose to test CEC, specific water absorption, shale recoveries and shale inflation rate.
在泥页岩理化性能的测定中,主要选择了阳离子交换容量,比吸水量,泥页岩回收率和泥页岩膨胀率的测定。
The water absorption material has distilled water absorbing rate of 200-800 times the dry weight, and 0.9 % concentration salt water absorbing rate of 20-75 times the dry weight.
本发明制备的吸水材料,经测定,其吸蒸馏水倍率可达 自身干重的200~800倍,吸盐水(0.9%)倍率可达自身干重的20~75倍。
The water absorption material has distilled water absorbing rate of 200-800 times the dry weight, and 0.9 % concentration salt water absorbing rate of 20-75 times the dry weight.
本发明制备的吸水材料,经测定,其吸蒸馏水倍率可达 自身干重的200~800倍,吸盐水(0.9%)倍率可达自身干重的20~75倍。
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