Urea Peroxide：New Degumming Agent Impact on the Effect of Oxidation Degumming of Ramie

2011 ◽  
Vol 121-126 ◽  
pp. 3039-3043
Author(s):  
Guo Liang Liu ◽  
Zheng Fan Li ◽  
Ruo Yao Ding ◽  
Xiao Min Zhong ◽  
Chong Wen Yu
Keyword(s):  
Sodium Hydroxide ◽  
Fiber Strength ◽  
Experimental Results ◽  
Single Fiber ◽  
Degumming Agent

The application of urea peroxide in ramie oxidation degumming was discussed in this paper. And urea peroxide impact on the effect of ramie degumming was analyzed. The experimental results show that four parameters such as time, temperature, the amount of urea peroxide and the dosage of sodium hydroxide have influence on the fiber strength. At the same time, fiber strength with the increase of the amount of urea peroxide is reduced. The fiber strength and the dosage of urea peroxide basically appear linear characteristics. With the increase of time and the amount of sodium hydroxide, the single fiber strength of ramie increases firstly and then decreases. When the temperature is 95°C and the time is 3 hours, the fiber strength is the highest.

scholarly journals Mechanical Properties of Benzoylation Treated Sugar Palm Fiber and Its Composite

2020 ◽  
Vol 8 (6) ◽  
pp. 4248-4252
Keyword(s):  
Tensile Strength ◽  
Sodium Hydroxide ◽  
Benzoyl Chloride ◽  
Fiber Strength ◽  
Fiber Composite ◽  
Alkaline Treatment ◽  
Single Fiber ◽  
Soaking Time ◽  
Palm Fiber ◽  
Sugar Palm Fiber

Studies on the effect of treated sugar palm fiber with alkaline treatment and benzoylation treatment on single fiber tensile strength and interfacial shear strength (IFSS) are shown in this paper. Also shown is the tensile strength of treated sugar palm fiber composite with variable fiber loading (10%, 20% and 30%). For alkaline treatment sodium hydroxide (NaOH) was used, while benzoyl chloride (C7H5ClO) was used in benzoylation treatment. Polymer matrix that was used in the process of making sugar palm fiber composite is epoxy resin with hardener. For the single fiber test and IFSS, the alkaline treatment was carried out using 1% concentration of sodium hydroxide for one hour soaking time while 5ml of benzoyl chloride was used to agitate with sodium hydroxide for benzoylation treatment with variable soaking time (10, 20 and 30 minutes). Treated sugar palm fiber showed higher single fiber strength and IFSS compared to untreated fiber due to the efficiency of both treatments which help rearrangement of fibrils along the tensile force direction. Tensile properties of sugar palm fiber composite show improvement in tensile stress and tensile modulus for treated sugar palm fiber composite while tensile strain show the opposite result. This is because the bonding strength between fiber and matrix increased by removing the outer layer together with impurities from the fiber during chemical treatment. Thus, with this treatment method, sugar palm fiber can be use as reinforcement material for composite and use them for commercial use such as for furniture and component inside vehicle.

Methyl Trichlorosilane Prepared Methyl Sodium Silicate

2012 ◽  
Vol 184-185 ◽  
pp. 1064-1067
Author(s):  
Guang Xia Zhang ◽  
Qiao Yun Zhang ◽  
Ze Min Chen
Keyword(s):  
Thermal Analysis ◽  
Differential Thermal Analysis ◽  
Sodium Hydroxide ◽  
Sodium Silicate ◽  
Water Solubility ◽  
Experimental Results ◽  
White Powder ◽  
Molten State

This paper studied how to prepare Methyl Sodium Silicate from Methyl Trichlorosilane. Methyl trichlorosilane hydrolyzed on the interface of cyclohexane and water, then hydrolysate and sodium hydroxide prepared methyl sodium silicate at molten state. Manufactrue was characterised by XRD, IR, and differential thermal analysis. The experimental results indicate that the best hydrolyze condition was the proportion of methyl trichlorosilane and water was 10~12:100 , at 5°C, lasting for 45min; the best condition of prepared methyl sodium silicate was the proportion of sodium hydroxide and hydrolysate was 2.1~2.3:1, at 300 ~450°C, lasting for 50min. The manufacture was white powder, water-solubility and well stabilization bellow 450°C.

Effect of Fiber Maturity on Bundle and Single-Fiber Strength of Upland Cotton

Crop Science ◽  
2019 ◽  
Vol 59 (1) ◽  
pp. 115-124 ◽  
Author(s):  
Hee Jin Kim ◽  
Christopher D. Delhom ◽  
James E. Rodgers ◽  
Don C. Jones
Keyword(s):  
Upland Cotton ◽  
Fiber Strength ◽  
Single Fiber ◽  
Fiber Maturity

Effect of Concentrated Alkali Treatment on the Properties of Naturally Colored Brown Cotton

2011 ◽  
Vol 332-334 ◽  
pp. 173-178
Author(s):  
Li Chen ◽  
Yu Sen Liu ◽  
Wei Guo Sun ◽  
Xiao Yan Zhou
Keyword(s):  
Sodium Hydroxide ◽  
Cotton Fiber ◽  
Breaking Strength ◽  
Sodium Hydroxide Solution ◽  
Fiber Strength ◽  
Alkali Treatment ◽  
Treatment Temperature ◽  
Color Differences ◽  
Colored Cotton ◽  
Naturally Colored Cotton

The naturally colored cotton fiber was treated by sodium hydroxide solution with different concentrations and temperatures.The surface morphology,crystalline structure, mechanical properties and color feature value of fiber after treatment were tested by SEM,XRD,electronic single fiber strength tester and Computer Color Matching meter.The results show that the longitudinal convolutions of the naturally colored cotton fiber treated by concentrated sodium hydroxide decreased or disappeared,and the fiber became nearly cylindrical or cylindrical.The crystallinity of fiber after treatment decreased,part of the celluloseⅠ changed into celluloseⅡ．The breaking strength and breaking elongation of fiber after treatment increased.The total color differences（ΔE） and value a*of fiber after treatment increased，to the contrary，value L* and value b* decreased，which leaded to that the color of fiber treated by alkali became darker．In addition,the treatment temperature had larger influence on the properties of fiber.

The estimation of statistical fiber strength by fragmentation tests of single-fiber composites

2000 ◽  
Vol 60 (10) ◽  
pp. 1965-1974 ◽  
Author(s):  
Fang Ming Zhao ◽  
Tomonaga Okabe ◽  
Nobuo Takeda
Keyword(s):  
Fiber Strength ◽  
Fiber Composites ◽  
Single Fiber

Sodium Hypochlorite: its Application and Stability in Bleaching

1995 ◽  
Vol 30 (2) ◽  
pp. 339-361 ◽  
Author(s):  
Tilak V. Bommaraju
Keyword(s):  
Sodium Chloride ◽  
Sodium Hydroxide ◽  
Sodium Hypochlorite ◽  
Experimental Results ◽  
Aqueous Sodium ◽  
The Stability ◽  
Selection Of ◽  
End Uses

Abstract One of the end uses of chlorine and sodium hydroxide, both produced by the electrolysis of aqueous sodium chloride, is in the manufacture of sodium hypochlorite, commonly called liquid “bleach.” This article outlines the methods of manufacturing liquid bleach, including the factors involved in the selection of materials of construction for handling chlorine, sodium hydroxide and sodium hypochlorite. Experimental results were presented addressing the stability of sodium hypochlorite as influenced by temperature and pH, and by anionic impurities such as Cl−, ClO3−, CO3− and SO4−, and cationic impurities which include Ca++, Mg++, Cu++, Ni++ and Fe++. Various techniques were also outlined to minimize the formation of chlorates during storage and bleaching and to improve the quality and stability of sodium hypochlorite.

Property Research on Cooling-Mica Fiber and Yarn

2012 ◽  
Vol 503-504 ◽  
pp. 482-485 ◽  
Author(s):  
Bian Xia Liu ◽  
Jia Guang Meng ◽  
Wei Tao Li
Keyword(s):  
Fiber Strength ◽  
Single Fiber ◽  
Yarn Strength ◽  
Single Yarn ◽  
Yarn Hairiness

In this article, morphology, IR and single fiber strength of cooling-mica fiber, and single yarn strength, yarn hairiness, twist, yarn evenness, resisting acid and alkali have been studied and tested.

A Developmental Study of Single Fiber Strength: Greenhouse Grown SJ-2 Acala Cotton

1995 ◽  
Vol 65 (2) ◽  
pp. 101-112 ◽  
Author(s):  
Y.-L. Hsieh ◽  
E. Honik ◽  
M.M. Hartzell
Keyword(s):  
Fiber Strength ◽  
Single Fiber ◽  
Developmental Study

Experiment Research on Effect of Moving Flat Speed on Carding Force in Carding Machine

2014 ◽  
Vol 998-999 ◽  
pp. 418-421
Author(s):  
Ye Ping Zhao ◽  
Peng Zi Sun ◽  
Xian Guo Han
Keyword(s):  
Cotton Fibre ◽  
Experimental Results ◽  
Single Fiber ◽  
Experiment Research ◽  
Obvious Effect ◽  
Basic Reason ◽  
Force Increase ◽  
Carding Machine

In order to research the influence of moving flat speed on carding force between cylinder and flat, the carding force test was carried out under the condition of seven level speeds of the flat with a specially developed dynamometer. Experimental results show that the flat speed has an obvious effect on the carding force, which on the first to tenth flats have been more influenced. The carding force increases as the flat speed rises. When the flat speed is 650 mm/min, the carding force is the largest. Raising the flat speed is equivalent to reducing load on the flat clothing surface. Therefore, average carding force increase on single fiber explains the basic reason that incremental flat speed results in the carding force raising. Cotton fibre carding process has been basically completed between the 14th and 20th flats.

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