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

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.

2012 ◽  
Vol 581-582 ◽  
pp. 265-268
Author(s):  
Yong Sheng Ma ◽  
Lin Tong Wang ◽  
Xian Hui Sun ◽  
Jiang Qiang Zhang ◽  
Shun Ran Zhang

Application in paper pulp as dry strengthening agent of homemade water in water cationic polyacrylamide (CPAM) emulsion was studied. Good collaborative effect was achieved when Homemade 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 homemade CPAM emulsion was applied in mixture of wood pulp which was needle bleached kraft pulp (NBKP) and straw pulp, breaking length and tearing index of hand sheet 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 handsheet section scanning electron microscopy (SEM) photos, strengthening mechanism of CPAM emulsion to paper pulp was preliminary studied.


2011 ◽  
Vol 117-119 ◽  
pp. 1421-1424
Author(s):  
Yong Sheng Ma ◽  
Xian Hui Sun

It is usually reported that chitosan is used as paper strengthening agent. However, it is sorry that the study choosing chitosan which DD (degree of de-acetyl )and viscosity is filtered by experiments is blank. Many chitosan samples of wide viscosity range and wide DD range were tested by their strengthening effect on bleched wheat straw pulp. Then a few sample of chitosan is selected because of their obvious strengthening effect on pulp. This study could be as the foundation of further research of chitosan used as paper strengthening agent.


2013 ◽  
Vol 774-776 ◽  
pp. 1010-1013
Author(s):  
Quan Xiao Liu ◽  
Dan Xi Li ◽  
Fei Ma ◽  
Chang Qing Chen ◽  
Jun Yang

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.


Otopro ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 23
Author(s):  
Muhimatul Ulya Mukasafah ◽  
Firman Yasa Utama

Mesin Hydropulper adalah mesin yang digunakan dalam proses mengaduk dan menyalurkan paper pulp (bubur kertas) dari serat kayu menggunakan agitator. Paper pulp yang diolah ini terdiri atas 2 macam, yaitu : Leaf Bleached Kraft Pulp (LBKP) atau kayu kaku (hard wood) dengan serat yang pendek dan kaku untuk membuat formasi kertas menjadi halus. Kedua, Needle Bleached Kraft Pulp (NBKP) atau soft wood dengan serat yang panjang dan elastis untuk memperkuat formasi kertas. Penelitian ini bertujuan menganalisis proses perawatan mesin Hydropulper 31L008 (Cigarette Paper Manufacturer) untuk mengetahui nilai ekonomis dalam proses pelumasan. Proses perawatan pencegahan ini dilakukan pada saat mesin ON atau berupaya meningkatkan rata-rata waktu antar kegagalan dan menurunkan rata-rata waktu perbaikan, agar kapasitas produksi yang mencapai 20 ton per hari tetap bisa terpenuhi. Metode dalam penelitian ini menggunakan analisis deskriptif kualitatif  berdasarkan pola perawatan yang ada. Hasil dari penelitian ini diperoleh nilai ekonomis melalui proses lubrikasi terhadap komponen bearing sebesar Rp 1.214.450 selama satu tahun atau lebih hemat sekitar 82% dalam kurun waktu lima tahun untuk siklus penggantian bearing pada kondisi mesin OFF yang mencapai Rp 35.000.000.


2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Xingyan Shang ◽  
Zhoudao Lu

The influence of different cooling regimes (quenching in water and cooling in air) on the residual mechanical properties of ECC (engineered cementitious composites) exposed to high temperature up to 800°C was discussed in this paper. The specimens quenching in water gained better mechanical properties than the ones cooling in air. The strengthening effect of quenching for specimens subjected to 800°C was more significant than for the ones subjected to 400°C. The microstructural characterization is examined before and after exposure to fire deterioration by using scanning electron microscopy. Results from the microtest well explained the mechanical properties variation of postfire specimens.


2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Chemar J. Huntley ◽  
Kristy D. Crews ◽  
Mohamed A. Abdalla ◽  
Albert E. Russell ◽  
Michael L. Curry

Cellulose extractions from wheat straw via hydrochloric, nitric, and sulfuric acid hydrolysis methods were carried out. X-ray diffraction spectral analyses reveal that depending on the acid conditions used the structure of the cellulose exhibited a mixture of polymorphs (i.e., CI and CIII cellulose phases). In addition, the percent crystallinity, diameter, and length of the cellulose fibers varied tremendously as determined by X-ray diffraction and scanning electron microscopy. Thermal gravimetric analysis measurements revealed that the thermal stability of the extracted cellulose varied as a function of the acid strength and conditions used. Scanning electron microscopy analysis revealed that the aggregation of cellulose fibers during the drying process is strongly dependent upon the drying process and strength of the acids used.


2013 ◽  
Vol 795 ◽  
pp. 679-683 ◽  
Author(s):  
Darus Murizam ◽  
Shamsul Baharin Jamaludin ◽  
Mohd Arif Anuar Mohd Salleh ◽  
Che Pa Faizul ◽  
M.Z. Ruhiyuddin

The development of precipitate during ageing treatment of A319 alloy contributed significantly to the alloy strengthening mechanism. Two solution treatment temperatures which were set at 510°C and 525°C were subjected onto the different groups of A319 alloy samples and followed by artificial ageing process at 180°C. Scanning electron microscopy was employed to observe the over-aged samples from both solution treatment temperatures. The observation shows that Mg2Si precipitates was only appeared at the higher solution treatment condition, while the Al2Cu precipitate developed in both solution treatment temperatures.


2000 ◽  
Vol 46 (9) ◽  
pp. 817-825
Author(s):  
G A Lyons ◽  
R D McCall ◽  
H SS Sharma

Mushroom compost manufacturers in Ireland are moving away from the traditional outdoor phase I windrow method, favouring in-vessel production. Composters and growers have reported better quality compost with faster spawn run and higher yields produced by this process. In the present study, physical examination of samples highlighted differences when comparing the windrow and in-vessel methods of compost production. Observations using scanning electron microscopy suggest that the cuticle of wheat straw from in-vessel production is damaged during phase I, peeling away from the surface in fragments, and exposing the epidermis. Changes in silicon levels on the straw surface acted as a marker for cuticle damage when comparing both composting systems. Cuticle damage may be important during composting and afterwards, as substrate colonisation is faster, and consequently spawn run is shorter. The phase I compost microbial community is altered by the in-vessel technique, producing a predominantly thermophilic bacterial flora in contrast to the mesophilic and thermophilic bacteria and fungi found in windrow phase I compost. These differences may be significant in mushroom compost production.Key words: windrow, in-vessel, compost, cuticle, straw.


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