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- With content of GCC increase, the paper strength increases, but whiteness and content of ash decreases. 随着研磨碳酸钙含量提高,卷烟纸强度性能提高,但白度、灰分和透气度指标有所降低。
- The unbleached kraft pulp was dealt with a high-shear fiber kneader,moreover,the pulp properties and paper strength properties were measured. 用高剪切纤维离解机对未漂白硫酸盐浆进行处理,并测定了纸浆的性能和浆张物理性能。
- Anionic starch and chitosan are used as dual additives in this paper.The dual additives canimprove paper strength and filler retention effectively. 本文用阴离子淀粉与壳聚糖作为双助剂共用,对提高纸张的物理强度和填料留着率进行了研究。
- The study results showed that paper strength,sizing efficiency and ash content of the sheet with AKD-LT sizing increased significantly. 应用结果表明,经AKD-LT施胶后,纸的强度、施胶度和灰分含量等都有较大的提高。
- The mixtures of the starch and polyvinylamine(PVAm) showed significant effects on the improvement of paper strength,draining and retention of the pulp. 研究了混合细化剂对四种不同铝含量的高铝锌合金室温下组织和力学性能的影响。
- Comparing with the control experiments, the CMC addition can increase the beating degree, WRV, and the bonding between the fibers as well as the paper strength. 与空白试样相比,CMC辅助打浆能提高竹浆的打浆度、保水值、纤维间的结合力及成纸强度。
- Effects of polyvinylamine prepared by basic hydrolysis of poly(N-vinylformamide) on paper strength, drainage and retention of reed pulp and wheat straw pulp were investigated. 研究了由聚N-乙烯基甲酰胺的碱性水解得到的聚乙烯胺在芦苇浆和麦草浆造纸中对纸张的增强、助滤和助留作用。
- Moreover,the increase of S/C ratios suggested that there was a higher lignin sulfonation degree on the fiber surface,Which is a main reason led to higher paper strength. S/C的提高则表明爆破使纤维表面的木素磺化度提高,这是引起爆破浆强度高的原因之一。
- The damage factors suitable for recycled fiber damage were defined elementally, with which evolvement rules of paper strength with damage variables were studied. 最后本文引入了损伤力学理论,初步定义了适合二次纤维损伤的损伤变量,研究了纸页强度性能随损伤变量的演化规律;
- The modification of GCC with the cationic surface modifier is studied. It applied to papermaking. The modified GCC significantly improves the filler - retention rate of paper and paper strength. 对阳离子改性重钙填料进行了研究,并应用于造纸体系,改性重钙大大提高了纸张的填料留着率及纸张强度。
- This paper discusses the impact of the strength of aramid paper.In the condition of the existing equipment,it is still feasible to improve paper strength by taking some technical measures. 文章着重讨论了影响芳纶纸强度的原因,认为在现有设备条件下,采取一些技术措施,提高纸张强度仍有较大的空间。
- The effects of the complexes on improvement of paper sizing and paper strength were relative to their dosages and ratios by controlling dosages and choosing ratios, the results of impr... 复合物的施胶效果和纸力增强效果与复合物的配比和添加量有关,通过选择不同配比的复合物和控制添加量,能同时达到提高纸力效果和施胶效果的目的。
- The results show that the retention aid N significantly enhance fines retention and stock drainage ability,ameliorate wet-end environment,reduce production cost while do not lower paper strength. 结果表明,助留剂N具有较好的提高浆料滤水性能和细小组分留着率的能力,对改善湿部环境、保持纸张强度、降低生产成本有较明显的效果。
- His sooty hand smudged the paper. 他被煤烟熏污的手把纸弄脏了。
- This paper strength from the sociological angel to realizes the effective teaching communication strategy, hoping to provide the help for front-lines teachers on the teaching and education. 本文从社会学视角下提出实现有效教学交往的策略,希望能为一线教师的教育教学提供帮助。
- This paper discussed the synthesis,blocking and unblocking of polyurethane as well as the effect of blocked polyurethane reacting with fiber hydroxyl on its performance for improving paper strength. 讨论了聚氨酯(PU)的合成、“封闭”、“解封”以及聚氨酯与纤维羟基之间的反应对封闭型水性聚氨酯纸张的增强作用;
- Cationization of pulp fibres by grafting copolymerization has been regarded as one of the effective approaches to enhance the paper strength and improve the retention of fillers and fines. 以丙烯酰胺和甲基丙烯酰氧基乙基三甲基氯化铵与纸浆纤维接枝共聚制备了阳离子硫酸盐浆。
- All its stock in trade is glossy paper backs. 该店的全部现货是光面的平装书。
- Hard copy is computer output on paper, printing or graphics. 硬拷贝是出现在纸上、印刷上或图表上的电脑输出。