scholarly journals REVIEW OF THE STRENGTH OF FOX GLUE IN DEVELOPMENT BOOK VOLS TECHNOLOGY USING THE YOSHINO 602 ENGINE

KREATOR ◽  
2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Muhammad Sultan Nasution ◽  
Nurjalih - ◽  
Abdul Majid
Keyword(s):  
Adhesion Strength ◽  
Technology Development ◽  
Raw Materials ◽  
Factual Information ◽  
Main Ingredient ◽  
Binding Process ◽  
High Adhesion ◽  
Descriptive Method

Competition in the manufacture of raw materials for printing and binding purposes is undeniable, as is the hot glue required for binding on books. The method used in this writing is descriptive method, namely by presenting factual information obtained from observations obtained and seen in the Industrial Practices place. The binding technique without thread or perfect binding is used for binding books, magazines and others. The main ingredient in the perfect binding binding process is glue. Glue greatly affects the production result, if the adjustments are not done properly the temperature of the glue and the thickness of the glue. The purpose of writing this paper is to determine the adhesion strength of Fox brand glue and to find out the problems that occur in the gluing unit during the volume of the book "Technology Development in the Yoshino 602 machine. Fox glue has high adhesion strength and the adhesion dries quickly so as not to waste a lot of time. , Fox glue is also very suitable for binding paper types (coated and uncoated) with a temperature of 1650C-1800C and a side glue temperature of 1400C on the Yoshino 602 machine. So Fox brand glue is very suitable for the binding process of "Technology Development" books using a machine. Yoshino 602 at PT. Putra Nugraha Sentosa. The problems that occur in the gluing unit are the temperature of the glue, the thickness of the glue on the roller and the glue roller, due to the lack of accuracy of the machine operator.Keywords: Adhesion, Glue and Machine

BIOPLASTIC MADE OF ORANGE PEELS

10.6036/10212 ◽  
2021 ◽  
Vol DYNA-ACELERADO (0) ◽  
pp. [ 7 pp]-[ 7 pp]
Author(s):  
Julieta Domínguez Soberanes ◽  
PIA BERGER
Keyword(s):  
Organic Waste ◽  
Raw Materials ◽  
Orange Peel ◽  
Main Ingredient ◽  
Resistant Material ◽  
Orange Peels ◽  
Toxic Product ◽  
Orange Peel Waste ◽  
Materials Used ◽  
Environmentally Friendly Process

This study uses orange peel waste to create a biopolymer that can be used for different purposes. In order to achieve this, we evaluated various technologies for the production of the biopolymer, and tried to design the most environmentally friendly process possible. One of the reasons why this bioplastic should be manufactured is to participate in the replacement of common environmental hazardous plastic, which has been banned in many places. On the other hand, using orange peel as the main ingredient is an alternative and gives value to an organic waste that has limited use in circular economy solutions. In this research we present a methodology to create a bioplastic of orange peels. As a result, we obtained a biodegradable, flexible and resistant material to be used in the manufacture of containers, utensils, etc. In addition, it is a material that, given the raw materials used, is considered GRAS (Generally Recognized As Save), implying a non-toxic product that is safe for the consumer.

Rehabilitation of Concrete Surfaces of Hydropower Engineering Structures Deteriorated by Soft Corrosion and Cavitation

2013 ◽  
Vol 688 ◽  
pp. 107-112 ◽  
Author(s):  
Sergii Guzii ◽  
Rudolf Hela ◽  
Volodymyr Kyrychok
Keyword(s):  
Water Flow ◽  
Adhesion Strength ◽  
Protective Coating ◽  
Mix Design ◽  
Proper Choice ◽  
Engineering Structures ◽  
High Adhesion ◽  
Hydropower Engineering ◽  
Basic Characteristics

This paper covers the results of study of the reasons explaining why soft corrosion and cavitation-induced erosion take place on the surfaces of the hydropower engineering structures made from concrete. The study suggested defining basic characteristics related to a proper choice of mix design of the alkaline aluminosilicate coatings in terms of high adhesion, strength and resistance of the protective coating to exposure of water flow. The results of study showed that during a period under review (6 months) the developed coatings had a coefficient of resistance from 1.03 to 1.09 and could provide a reliable protection of the concrete from being leached.

POTENSI PENGEMBANGAN PLASTIK BIODEGRADABLE BERBASIS PATI SAGU DAN UBIKAYU DI INDONESIA / The Development Potential of Sago and Cassava Starch-Based Biodegradable Plastic in Indonesia

2017 ◽  
Vol 36 (2) ◽  
pp. 67
Author(s):  
Elmi Kamsiati ◽  
Heny Herawati ◽  
Endang Yuli Purwani
Keyword(s):  
Production Technology ◽  
Raw Materials ◽  
Environmentally Friendly ◽  
Biodegradable Plastics ◽  
Cassava Starch ◽  
Packaging Material ◽  
Biodegradable Plastic ◽  
Raw Material ◽  
Main Ingredient ◽  
Production Stages

<p>Plastic is a packaging materials that are widely used but has an adverse impact on the environment because it is difficult to degrade in nature. Production technology of biodegradable plastics from natural resources that have characteristic environmentally friendly has developed. Starch-based biodegradable plastic is a widely developed type because the production process is simple and the raw materials more readily available. The starch of cassava and sago has potential as a raw material of biodegradable plastic because of the availability and its characteristic. Also, to make starch as the main ingredient, plasticizers and structural strengthening materials are required to produce biodegradable plastic with excellent characteristics. The production stages of biodegradable plastics include mixing, heating, and casting. The starch-based biodegradable plastic that can apply to an environmentally friendly packaging material has an excellent opportunity developed in Indonesia.</p><p>Keywords: Starch, sago, cassava, biodegradable plastics, production technology</p><p> </p><p><strong>Abstrak</strong></p><p>Plastik merupakan bahan pengemas yang banyak digunakan namun berdampak buruk bagi lingkungan karena sulit terdegradasi di alam. Teknologi produksi plastik biodegradable atau bioplastik yang dibuat dari bahan alami dan ramah lingkungan sudah mulai dikembangkan. Plastik biodegradable berbahan dasar pati relatif lebih mudah diproduksi dan bahan baku mudah diperoleh. Pati ubi kayu dan sagu memiliki potensi sebagai bahan baku plastik biodegradable ditinjau dari ketersediaan dan karakteristiknya. Selain pati sebagai bahan utama, diperlukan pula plastisizer atau bahan pemlastis dan bahan penguat struktur untuk menghasilkan plastik biodegradable dengan karakteristik yang baik. Tahapan produksinya meliputi pencampuran, pemanasan, dan pencetakan. Plastik biodegradable berbahan dasar pati dapat digunakan sebagai bahan pengemas yang ramah lingkungan dan berpeluang besar dikembangkan.</p><p>Kata kunci: Pati, sagu, ubi kayu, bioplastik, teknologi produksi</p>

Surface Modification of Poly(ether ether ketone) through Friedel–Crafts Reaction for High Adhesion Strength

Langmuir ◽  
2019 ◽  
Vol 35 (30) ◽  
pp. 9761-9768
Author(s):  
Akira Miyagaki ◽  
Yusuke Kamaya ◽  
Takuya Matsumoto ◽  
Koji Honda ◽  
Masafumi Shibahara ◽  
...  
Keyword(s):  
Surface Modification ◽  
Adhesion Strength ◽  
High Adhesion ◽  
Ether Ether Ketone ◽  
Poly Ether Ether Ketone ◽  
Ether Ketone

scholarly journals Optimization of Adhesion Strength and Microstructure Properties by Using Response Surface Methodology in Enhancing the Rice Husk Ash-Based Geopolymer Composite Coating

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2709
Author(s):  
Mohd Salahuddin Mohd Basri ◽  
Faizal Mustapha ◽  
Norkhairunnisa Mazlan ◽  
Mohd Ridzwan Ishak
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Composite Coating ◽  
Adhesion Strength ◽  
Rice Husk ◽  
Rice Husk Ash ◽  
Offshore Structures ◽  
Interfacial Bonding ◽  
Curing Temperature ◽  
High Adhesion

As a result of their significant importance and applications in vast areas, including oil and gas, building construction, offshore structures, ships, and bridges, coating materials are regularly exposed to harsh environments which leads to coating delamination. Therefore, optimum interfacial bonding between coating and substrate, and the reason behind excellent adhesion strength is of utmost importance. However, the majority of studies on polymer coatings have used a one-factor-at-a-time (OFAT) approach. The main objective of this study was to implement statistical analysis in optimizing the factors to provide the optimum adhesion strength and to study the microstructure of a rice husk ash (RHA)-based geopolymer composite coating (GCC). Response surface methodology was used to design experiments and perform analyses. RHA/alkali activated (AA) ratio and curing temperature were chosen as factors. Adhesion tests were carried out using an Elcometer and a scanning electron microscope was used to observe the microstructure. Results showed that an optimum adhesion strength of 4.7 MPa could be achieved with the combination of RHA/AA ratio of 0.25 and curing temperature at 75 °C. The microstructure analysis revealed that coating with high adhesion strength had good interfacial bonding with the substrate. This coating had good wetting ability in which the coating penetrated the valleys of the profiles, thus wetting the entire substrate surface. A large portion of dense gel matrix also contributed to the high adhesion strength. Conversely, a large quantity of unreacted or partially reacted particles may result in low adhesion strength.

scholarly journals Design of Highly Adhesive and Water-Resistant UV/Heat Dual-Curable Epoxy–Acrylate Composite for Narrow Bezel Display Based on Reactive Organic–Inorganic Hybrid Nanoparticles

Polymers ◽  
2020 ◽  
Vol 12 (10) ◽  
pp. 2178
Author(s):  
Jun Hyup Lee
Keyword(s):  
Adhesion Strength ◽  
Sol Gel ◽  
Hybrid Nanoparticles ◽  
Epoxy Acrylate ◽  
Inorganic Hybrid ◽  
Low Viscosity ◽  
Information Displays ◽  
Heat Curing ◽  
High Adhesion ◽  
Acrylate Resin

To attain the narrow bezel characteristic of information displays, functional sealing composite materials should possess high adhesion strength and water barrier performance due to their narrow line widths. In this study, highly adhesive UV/heat dual-curable epoxy–acrylate composites with outstanding water-resistant performance have been proposed using photoreactive organic–inorganic hybrid nanoparticles that can react with an acrylate resin, creating a crosslinked nanoparticle network within the sealing composite. The hybrid nanoparticles consisted of reactive methacrylate groups as a shell and an inorganic core of silica or aluminum oxide, and were facilely synthesized through sol–gel reaction and chemisorption process. The curing characteristics, adhesive strength, and moisture permeability of the proposed sealing composite have been compared to those of a conventional epoxy–acrylate composite containing inorganic silica particles. The composites including hybrid nanoparticles exhibited high UV and heat curing ratios owing to the numerous methacrylate groups on the nanoparticle surface and high compatibility with organic resins. Moreover, the proposed sealing composite showed high adhesion strength and extremely low water permeability due to the creation of densely photocrosslinked network with matrix resins. In addition, the sealing composite exhibited excellent narrow dispensing width as well as relatively low viscosity, suggesting the potential application in narrow bezel display.

scholarly journals Challenges and Scopes of Pottery Industry

Pravaha ◽  
2018 ◽  
Vol 24 (1) ◽  
pp. 147-158
Author(s):  
Prakash Shrestha
Keyword(s):  
Raw Materials ◽  
International Market ◽  
International Markets ◽  
Grain Storage ◽  
Pottery Industry ◽  
The People ◽  
Firing Pottery ◽  
Descriptive Method ◽  
Large Vessels ◽  
Festive Occasion

Pottery is unique art of making artifacts from clay. It produces different kinds of clay and ceramics items such as flowerpots, water and grain storage jars, large vessels for distilling rice spirits called rakshi, cooking pots, tableware, stoneware cups, bowls, and plates, stoneware pitcher and mug, etc. This research aims to examine challenges faced by the pottery industries and to examine scopes of the pottery industries in Nepal. This research is based on the descriptive method. The results show that there is good scope in the this industry but the people involved in this industry are facing different kinds of challenges or problems like shortage of raw materials, manpower, and lack of space to dry the formed pottery, firing pottery, to store the finished goods along with the different raw materials. The sales of the product in the national and international markets are being increased. This industry is being affected by the change in lifestyle and different substitute products. The intermediaries get good profits but they face the problem of getting the products damaged, demand dependent on the festive occasion, problem of transportation, etc. Study shows that there is a huge demand for Nepali handmade ceramic products in the international market due to their improved quality. Buyers are willing to pay a premium for handmade goods, which are propelling exports. Pravaha Vol. 24, No. 1, 2018, Page: 147-158

An Adhesion Study of Copper and Chromium Films to Polyimide

1993 ◽  
Vol 323 ◽  
Author(s):  
T. G. Chung ◽  
Jin Yu ◽  
Y.-H. Kim ◽  
E. C. Ahn ◽  
I. S. Park
Keyword(s):  
Adhesion Strength ◽  
Polymer Surface ◽  
Peel Test ◽  
Peel Strength ◽  
Metal Strip ◽  
Rf Plasma ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Adhesion ◽  
Chromium Films

AbstractAdhesion of Cu and Cr to polyimide was studied by 90° peel test, AES, and X-ray diffraction. The two necessary conditions of the high adhesion strength were the presence of Cr interlayer and the preactivation of the polymer surface by RF plasma treatment. The Cr is thought to react with activated polyimide to form carbide-like bonds which enhance the adhesion strength drastically. Correlations between the peel strength and C260/Cr527 Auger PHR from the peeled metal strip were good. Qualitatively, the peel strength is related to the amount of plastic deformation done on the metal strip during peeling.

Combination Mechanism of Ni-Al Sprayed Coating under Median Temperature Sintering and Valid Evaluation for its Bonding Strength

2010 ◽  
Vol 29-32 ◽  
pp. 537-542
Author(s):  
Wei Zhou ◽  
Xiao Xia Zhang ◽  
Xiao Tong Li
Keyword(s):  
Adhesion Strength ◽  
High Strength ◽  
Reduction Reaction ◽  
Hydrogen Atmosphere ◽  
Mixed Powder ◽  
Sem Image ◽  
Oxidation Reduction ◽  
High Adhesion ◽  
Oxidation Reduction Reaction ◽  
Sprayed Coating

After Ni-Al mixed powder is sprayed on surface of pure Fe using oxy-fuel spraying, the as-sprayed coatings are processed by median temperature sintering in hydrogen atmosphere. SEM image and element distributions cross the interface of sintering coating are characterized using scanning electron microscopy (SEM). The results show that the sintering coating have a good combinaton and there is a transition zones of about 10 μm in width with metallurgical binding cross the coating interface. Under the protection of hydrogen, the oxidation-reduction reaction of Fe, Ni and Al could be occurred cross the coating interface, and contribute to combination of the coating interface. In view of the low sterngth of glue, the high adhesion strength coating could not be evaluated by ASTM C633-79. As a result, a modified experimental method and corresponding finite element (FE) analysis was conducted to evaluate the adhesion strength of high-strength coating. The parallel testing between the new method and ASTM C633-79 on specimens with same condition for low adhesion strength coatings has been conducted and the valid is proved.

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