干强度

几种改性淀粉对提高纸张干强度的效果比较

Comparison of Several Modified Starches on Improving Dry Strength of Paper

阳离子聚丙烯酰胺对纸板干强度的影响

The Influence of Cationic Polyacrylamide On Dry Strength of Paperboard

同时研究了P（AM/DDAC/DMC/AA）性能，并进行了造纸应用实验，使纸张干强度明显增加和滤水时间显著缩短。

At the same time , the P ( AM / DDAC / DMC / AA ) same performance were studied and applying tests in papermaking were carried out .

研究结果表明：当TDI用量10%，反应时间10min，反应温度60℃时，聚氨酯化后纸张裂断长提高了21.55%，湿强度为干强度的41.61%，耐折度提高了1.6倍；

On the conditions of dosage of TDI 10 % , reaction time 10 min and temperature 60 ℃, breaking length is elevated by 21.55 % , folding strength is raised by 1.6 times , and wet strength / dry strength is 41.61 % ;

本文研究了不同改性淀粉对纸张干强度的影响。

The paper studies the effect of different modified starches on dry strength .

经过试验，发现该增强剂对纸的干强度有明显的效果。

The dry strength agents have showed the obvious effect to increase the dry strength .

经芬顿试剂处理后的纤维制备的纸张与未处理样相比，除撕裂指数略有所降低外，干强度和湿强度都有不同程度的增加。

Wet and dry strength of paper treated by Fenton reagent increased to some extent compared with untreated paper , except tear index .

交联使纤维的湿断裂强度明显提高，湿干强度比可提高16.9%，但对纤维的热稳定性影响不大；

Wet breaking strength increased obviously after crosslinking , and the ratio of wet strength to dry strength increased by16.9 % , while there was a little impact on thermostability .

通过正交试验，研究了各因素对真空实型铸造铸钢件涂料的透气性、干强度、剪切力、悬浮性的影响。

In this paper , the influence of various parameters on suspension shearing dry strength and permeability of EPC coating used on steel casting through right angle test was studied .

湿强剂是指一种造纸用化学助剂，其加入纸中后，纸张即使在被水浸湿后仍然能保持原纸干强度的15%以上。

Wet strength agent is a kind of chemicals for paper making . Even if paper is soaked by water , the wet strength of paper can still maintain more than 15 % of dry strength after wet strength agent is added into paper .

影响粉煤灰烧结砖干坯强度因素的研究

Research on factors affecting the intensity of dry body of fly ash fired brick

干侵入强度指数的表征及其物理意义

Dry Intrusion Index and Its Physical Interpretation

在粉煤灰砖中加入质量分数为2%的外加剂D进行化学活化后，可明显改善干坯强度，并提高烧结砖的抗压强度。

Results also showed that compressive strength of both the unfired and fired brick were increased when 2 % activator D was added .

接枝后的聚丙烯酰胺树脂除了具有良好的湿拉伸强度性能外，还可以大幅度地提高纸张的干拉伸强度。

The grafted polyacrylamide resin not only possesses an eminent wet tensile strength , but also raises significantly the dry tensile strength of paper .

对撞流干燥技术是一门新兴的干燥技术，具有能耗低、干高强度大、结构简单的特点，在国外应用领域很广，而在我国还没有推广。

The impinging stream drying is a new technology , which has the peculiarity of low power consumption , high dryingcapability and simple const .

结果表明：改性粘结剂的主要成分与合脂粘结剂大致相同，且具有更高的干拉强度和更慢的发气速度等优异性能。

The result showed that the treated binders have the similar components with synthetic fat binder , and they also have many excellent properties such as higher dry tensile strength and slower deflate velocity .

结果表明，树脂A使焦炭粉冷固成型的球团的生球和干球强度明显提高。

The results showed that the cold-bond briquette strength and the dry pellet strength are apparently improved by modified sodium silicate with Resin A , and it was also determined that the better batch formula of the modified sodium silicate with Resin A.

用做木材黏合剂，在25℃时干态剪切强度为7－53MPa，室温和100℃时用水浸泡不开胶时间达到91－5d和90－6min。

Used as wood adhesive , its dry shearing strength was 7 53 MPa at 25 ℃ . Immersed in water at room temperature and at 100 ℃, it kept adhesion for 91 5 d and 90 6 min respectively .

发现UVD助剂和UVD&PC聚合物能提高纸张的干、湿强度和不透明度，可以作为装饰纸的一种新型化学助剂。

The study shows that the UVD aid and the double polymer of UVD-PC can be used as a new chemical aid of light duty decorating paper to improve the dry , wtt strength and opacity of paper .

城市给水干管管壁强度可靠性研究

Research on the Reliability of the Intensity of Main Pipes for Municipal Water Supply

生育中期根部干物质积累强度达1.24克/株·日，较直播（0.46克/株·日）高1.7倍；

Day , 1.7 times higher than direct planting ( 0.46g / plant . day ) .

其干物质积累强度的变化为慢快慢式，其分配率变化特点是：生育初期干物质主要分配于营养体；和中国一起成长

The distribution was mainly in vegetative mass at the first period of growing stage . Growing with China

干草原放牧强度对草地生态变化及其利用效果的影响

Effects of Grazing Intensity on the Water Content of Grassland Soil , Grassland Productivity and Sheep Increasing Weight

加入细料到化学浆中可大大提高纸页紧度和许多干纸页强度性质。

Addition of fines to a chemical pulp significantly improves sheet consolidation and many dry sheet strength properties .

硬质合金及涂层刀具干铣削高强度钢的磨破损机理研究

Investigation on Abrasion and Dilapidation Mechanism of Cemented Carbide Tool and Coated Tool in Process of Dry Milling High-strength Steel

甲醛/苯酚的摩尔比从1.75增加到2.6，干状胶合强度和湿状胶合强度分别增加了24%和17%。

The molar ratio increased from 1.75 to 2.6 , the dry and wet strength increased 24 % and 17 % , respectively . 3 .

能降低球团的气孔率和平均粒度，增加球团的致密程度，提高干球的强度。

It can reduce the porosity and mean particle size of pelletizing , increase the compact level of pelletizing , improve the intension of dry bulb .

干面条断裂强度与面粉蛋白质含量呈极显著正相关，同时受面筋强度的强烈影响。

Breaking strength of the dried noodles is positively correlated with the protein content of flour and is strongly influenced by the gluten strength at the same time .

试验结果表明：涂层刀片干铣削高强度钢的加工性能优异，工件加工表面质量达到半精磨水平。

The advantages of coated cemented carbide tool in dry milling of high-strength steel are demonstrated , and the workpiece surface roughness reaches the level of semi-finishing grinding .

在纸浆中添加少量该乳液即能明显改善纸张的干、湿强度和柔软度。

The dry and wet strength and flexibility of paper will be improved significantly when add a little of the latex to the pulp before make into paper .