Preparation and Properties of Multi-Layer Composite Paperboard

2013 ◽  
Vol 774-776 ◽  
pp. 1010-1013
Author(s):  
Quan Xiao Liu ◽  
Dan Xi Li ◽  
Fei Ma ◽  
Chang Qing Chen ◽  
Jun Yang
Keyword(s):  
Wheat Straw ◽  
Raw Materials ◽  
Pulp Fiber ◽  
Paper Pulp ◽  
Mechanical Pulp ◽  
Physical Strength ◽  
Chemical Pulp ◽  
Layer Composite ◽  
Wheat Straw Pulp ◽  
The Cost

In order to study the preparation and property of the multi layer composite paperboard, bleached wheat straw pulp, bleached chemical thermal mechanical pulp and waste newsprint pulp are used as raw materials to making paperboard. The results show that the bonding force between fibers of grasses chemical pulp is strong which can improve the bonding strength between the layers. Bleached wheat straw pulp is used as outer layer and waste news paper pulp is used as inner layer to make composite paperboard has high physical properties. Bleached chemical thermal mechanical pulp fiber is shorter, so paperboard tightness and physical strength reduce, which can be used as the lining of the multi layer composite paperboard to improve the stiffness of the paperboard and reduce the cost.

scholarly journals Improving fire retardancy of cellulosic thermal insulating materials by coating with bio-based fire retardants

2019 ◽  
Vol 34 (1) ◽  
pp. 96-106 ◽  
Author(s):  
Chao Zheng ◽  
Dongfang Li ◽  
Monica Ek
Keyword(s):  
Raw Materials ◽  
Fire Retardant ◽  
Kraft Lignin ◽  
Pulp Fiber ◽  
Fire Retardants ◽  
Fire Retardancy ◽  
Cone Calorimetry ◽  
Insulating Materials ◽  
Mechanical Pulp ◽  
Thermal Insulating

Abstract Sustainable thermal insulating materials produced from cellulosic fibers provide a viable alternative to plastic insulation foams. Industrially available, abundant, and inexpensive mechanical pulp fiber and recycled textile fiber provide potential raw materials to produce thermal insulating materials. To improve the fire retardancy of low-density thermal insulating materials produced from recycled cotton denim and mechanical pulp fibers, bio-based fire retardants, such as sulfonated kraft lignin, kraft lignin, and nanoclays, were coated onto sustainable insulating material surfaces to enhance their fire retardancy. Microfibrillated cellulose was used as a bio-based binder in the coating formula to disperse and bond the fire-retardant particles to the underlying thermal insulating materials. The flammability of the coated thermal insulating materials was tested using a single-flame source test and cone calorimetry. The results showed that sulfonated kraft lignin-coated cellulosic thermal insulating materials had a better fire retardancy compared with that for kraft lignin with a coating weight of 0.8 kg/m2. Nanoclay-coated samples had the best fire retardancy and did not ignite under a heat flux of 25 kW/m2, as shown by cone calorimetry and single-flame source tests, respectively. These cost-efficient and bio-based fire retardants have broad applications for improving fire retardancy of sustainable thermal insulating materials.

Research on Production of Hand Towel from the Poplar Extruding Mechanical Pulp (EMP)

2012 ◽  
Vol 550-553 ◽  
pp. 3253-3257
Author(s):  
Xian Qi Sun ◽  
Chuan Shan Zhao ◽  
Hui Rong Yang
Keyword(s):  
Kraft Pulp ◽  
Lower Cost ◽  
Raw Materials ◽  
Raw Material ◽  
Public Places ◽  
Mechanical Pulp ◽  
Tissue Paper ◽  
Chemical Pulp ◽  
Bleached Kraft Pulp ◽  
High Level

Hand towel is one kind of disposable tissue paper which has characteristic of soaking up water quickly and lower cost. It becomes increasingly popularity in families, at work, and public places. There are many kinds of raw materials to produce hand towel according to its level. Some researches showed that bleached chemical pulp could be partially used to the production of hand towel and some other household paper. In this study, some kinds of raw material which be used to produce hand towel were analyzed and trying to looking for new one. Poplar Extruding Mechanical Pulp (EMP) had characteristics of long fiber, high level of strength and brightness. Different ratio of poplar EMP and certain Bleached Kraft Pulp were tested to make hand towel. The effects of poplar EMP on whiteness, tensile strength, bulkiness, absorbability were discussed. The results showed that characteristic targets of hand towel made from poplar EMP and Bleached Kraft Pulp met the quality requirements of GBT22455-2009 and satisfied the high-end hand towel. The new hand towel had lower cost, higher stiffness and higher bulkiness. It was feasible from the technique and economy point.

The Role of Ferulic Acid Removal during Bleaching of Wheat Straw Mechanical Pulp with Peroxygen Reagents

Holzforschung ◽  
2003 ◽  
Vol 57 (3) ◽  
pp. 282-288 ◽  
Author(s):  
G. X. Pan ◽  
C. I. Thomson ◽  
G. J. Leary
Keyword(s):  
Ferulic Acid ◽  
Wheat Straw ◽  
Model Compounds ◽  
Mechanical Pulp ◽  
Peroxide Bleaching ◽  
Wheat Straw Pulp

Summary The present paper reports our investigation into the use of two peroxygen reagents, peroxymonosulfate (PMS) and dimethyldioxirane (DMD), in bleaching sequences with peroxide to bleach wheat straw mechanical pulp, their reactivity with ferulic acid model compounds, and the likely relation between the two aspects. It was observed that combinations of PMS or DMD with peroxide offered a synergy leading to substantially improved brightness development in bleaching of wheat straw pulp. At the same time, these oxidizing reagents, especially DMD, were shown to be highly reactive with ferulic acid derivatives and increased the removal of ferulic acid from wheat straw pulp in bleaching. The results would suggest that the presence of non-lignin, peroxide-resistant chromophoric components, such as ferulic acid derivatives, might be an important factor limiting the brightness development of wheat straw mechanical pulp by conventional peroxide bleaching.

scholarly journals Research on the Physical Properties of Calcium Sulfate Whisker and the Effects of its Addition on Paper and its Printing Performance

2021 ◽  
Author(s):  
Haitang Liu ◽  
Jing Liu ◽  
Yongzhen An ◽  
Jie Li ◽  
Xuexiu Li ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Wheat Straw ◽  
Calcium Sulfate ◽  
Ph Value ◽  
Raw Materials ◽  
Retention Rate ◽  
Surface Strength ◽  
Softwood Pulp ◽  
Wheat Straw Pulp ◽  
Calcium Sulfate Whiskers

Abstract In this investigation, softwood pulp and bleached wheat straw pulp were used as raw materials, and Calcium Sulfate Whiskers (CSW) were used as fillers. Based on the structural properties and characteristics of CSW, the printing properties of the paper with CSW, such as whiteness, opacity, pH value, uniformity, Z-direction tensile strength and surface strength, were analyzed. The results showed that CSW has low solubility, high retention rate and fiber-like appearance. The whiteness of the paper is the best when the filling amount of CSW is 20%. The paper opacity of softwood pulp increases significantly, and the opacity of bleached wheat straw pulp decreases significantly when CSW is more than 30%. The addition reduces pH and surface strength of the paper. The evenness of the paper does not change obviously. The Z-direction tensile strength of the paper decreases in the softwood paper, but increases obviously in the bleached wheat straw paper. Graphic abstract

scholarly journals Application of Pulp Fiber for Automotive Brake Lining

2017 ◽  
Vol 3 (2) ◽  
pp. 61-67
Author(s):  
Wawan Kartiwa Haroen ◽  
Posma Reginald Panggabean
Keyword(s):  
High Heat ◽  
Asbestos Fiber ◽  
Pulp Fiber ◽  
Heat Absorption ◽  
Mechanical Pulp ◽  
High Fiber ◽  
Chemical Pulp ◽  
Brake Lining ◽  
Wheeled Vehicles ◽  
Automotive Brake

Mechanical and/or chemical pulp fiber is usually used for papermaking and other kind of paper products. In fact, physical properties of chemical and/or mechanical pulp showed that it can be utilized as filler of automotive brake lining.  Mechanical pulp is non-asbestos cellulosic fiber with high heat absorption rate which can fit into criterion of good quality brake lining. Pulp  fiber was defiberation mixed with some other composite materials can create high fiber bonding with some hardness, friction materials, clutching, heat and dust retainer fiber which is free of asbestos fiber. Current automotive brake lining uses asbestos fiber as main filler, which is in fact known as cancer triggers.  A series of study and assessment in using pulp fiber in a specified composition as brake lining filler have been carried out. The research and field experiment revealed that a mixture of pulp fiber can be further examined and feasible for brake lining prototype filler application which is ready for automotive vehicles operation. The development and application fiber brake lining filler has been tested on two wheeled vehicles with considerable result.

scholarly journals Research on the physical properties of calcium sulfate whisker and the effects of its addition on paper and its printing performance

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Jing Liu ◽  
Xin Jin ◽  
Haitang Liu ◽  
Yongzhen An ◽  
Jie Li ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Wheat Straw ◽  
Calcium Sulfate ◽  
Ph Value ◽  
Raw Materials ◽  
Surface Strength ◽  
Softwood Pulp ◽  
Wheat Straw Pulp ◽  
Calcium Sulfate Whiskers ◽  
Low Solubility

Abstract In this investigation, softwood pulp and bleached wheat straw pulp were used as raw materials, and Calcium Sulfate Whiskers (CSW) were used as fillers. Based on the structural properties and characteristics of CSW, the printing properties of the paper with CSW, such as whiteness, opacity, pH value, uniformity, Z-direction tensile strength and surface strength, were analyzed. The results showed that CSW has low solubility, high retention and fiber-like appearance. The whiteness of the paper is the best when the filling amount of CSW is 20 %. The paper opacity of softwood pulp increases significantly, and the opacity of bleached wheat straw pulp decreases significantly when CSW is more than 30 %. The addition reduces pH and surface strength of the paper. The evenness of the paper does not change obviously. The Z-direction tensile strength of the paper decreases in the softwood paper, but increases obviously in the bleached wheat straw paper.

Effects of Enzymatic Modification of Masson Pine Mechanical Pulp on Fiber Morphology and Pulp Properties

2011 ◽  
Vol 117-119 ◽  
pp. 1593-1596
Author(s):  
Qing Luo ◽  
Xin Ping Li ◽  
Ye Liu ◽  
Jun Hua Liu
Keyword(s):  
High Yield ◽  
Pulp Fiber ◽  
Shape Parameters ◽  
Enzymatic Modification ◽  
Fiber Morphology ◽  
Masson Pine ◽  
Mechanical Pulp ◽  
Physical Strength ◽  
Comprehensive Utilization ◽  
Pulp Properties

Mechanical pulping is a kind of high yield pulping that comes with the comprehensive utilization of plant material. Mechanical pulp has lots of benefits, such as simple process, low pollution, good bulkiness, fine stiffness, excellent optical performance and good printability. However, it also has disadvantages of lower paper physical strength and higher refining energy. In this paper, AU-MTPE90 enzyme and acid xylanase were used to modify the masson pine mechanical pulp before refining. The effects of modification on the shape parameters of masson pine mechanical pulp fiber and pulp properties were studied. The results showed that after modified by AU-MTPE90 enzyme and acid xylanase，the drainability of the refined pulp increased, the average fiber length increased and the fines percent decreased. The curl index and kink index increased slightly after modified by AU-MTPE90 enzyme，while the kink index decreased after modified by xylanase.

Improvement in selectivity of ozone bleaching using DTPA as carbohydrate protector for wheat straw pulp

2019 ◽  
Vol 34 (3) ◽  
pp. 271-279 ◽  
Author(s):  
Sandeep Kumar Tripathi ◽  
Nishi Kant Bhardwaj ◽  
Himadri Roy Ghatak
Keyword(s):  
Wheat Straw ◽  
Morphological Properties ◽  
Ozone Treatment ◽  
Physical Strength ◽  
Bleached Pulp ◽  
Pulp Viscosity ◽  
Wheat Straw Pulp ◽  
Mn Content ◽  
And Control ◽  
Ozone Bleaching

Abstract Effect of using diethylenetriamine pentaaceticacid (DTPA) as carbohydrate protector in ozone stage on delignification efficiency, bleaching efficiency, selectivity, metal ions, strength, morphological properties and effluent properties of wheat straw pulp was studied. Using DTPA during ozone treatment viscosity of pulp was improved by 1.1 units, delignification efficiency improved by 13.8 % and pulp brightness improved by 2.5 units compared to that of control. Most importantly the selectivity of ozone treatment was improved by 124 %. Ozone treatment along with DTPA reduced the Fe, Cu and Mn content in the pulp by 52 %, 27 % and 70 %, respectively. Use of DTPA in ozone stage improved the bleached pulp viscosity by 9 %, post colour number by 27 % and reduced the pulp shrinkage by 5 % compared to control pulp. DTPA treated and control pulps have comparable physical strength and morphological properties.

Study on Application as Cigarette Paper Dry Strengthening Agent of CPAM Emulsion

2014 ◽  
Vol 1004-1005 ◽  
pp. 619-622
Author(s):  
Wen Ju ◽  
Jiang Qiang Zhang ◽  
Yue Li ◽  
Xiang Wei Liu
Keyword(s):  
Electron Microscopy ◽  
Wheat Straw ◽  
Kraft Pulp ◽  
Strengthening Mechanism ◽  
Strengthening Effect ◽  
Paper Pulp ◽  
Wheat Straw Pulp ◽  
Breaking Length ◽  
Cigarette Paper ◽  
Scanning Electron

Homemade water in water cationic polyacrylamide (CPAM) emulsion was applied in cigarette paper pulp as dry strengthening agent with other strengthening agent. Good collaborative effect was achieved when CPAM was used in bleached wheat straw pulp with strengthening agent E and with cationic additives L as paper pulp strengthening agent. It was also showed that distinct strengthening effect was obtained when CPAM emulsion was applied in mixture of bleached needle kraft pulp (NBKP) and wheat straw pulp, breaking length and tearing index of cigarette handsheet made of mix pulp was respectively increased by 22.2% and17.0% when the dosage of CPAM was 0.8% of dry fiber. Through analysis of cigarette handsheet section scanning electron microscopy (SEM) photos, strengthening mechanism of CPAM emulsion to cigarette paper pulp was preliminary studied.

Preparation and Characteristic of Composites with Wheat Straw Woodceramic / Attapulgite

2013 ◽  
Vol 330 ◽  
pp. 126-130 ◽  
Author(s):  
Wen Tao Wu ◽  
Fang Liang Tan ◽  
Feng Xu
Keyword(s):  
High Temperature ◽  
Wheat Straw ◽  
Phenolic Resin ◽  
Raw Materials ◽  
Curing Agent ◽  
Research Directions ◽  
Physical Strength ◽  
New Research ◽  
Resin Curing ◽  
Composite Carbon

This paper mainly introduces that the wheat straw, attapulgite and phenolic resin, curing agent respectively usded as raw materials and the auxiliary materials , and those were finally prepared as a new composite carbon material through the processes of mixing, drying ,hot pressing, as well as high temperature sintering. The different sintering temperatures and different ratios of different materials were fabricated, then the material physical strength, density, porosity, strength, resistivity and other properties were tested. After which, the performance, formation mechanism and formation law were analyzed ,the effect of the choice and ratio materials and the temperature to the preparation as well as the properties of composite materials were preliminarily discussed, Identified as wheat straw: attapulgite = 2: 1; 3: 1, a temperature of 700 to 800 DEG C when all the material physical properties of ideal.. This experiment showed that wheat straw as raw materials for preparing attapulgite feasibility. At the same time, the presented work also opens up new research directions to the reuse utilization of wheat straw ,the application of attapulgite as well as research of woodceramics composites.

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