scholarly journals POTENSI KERTAS SEBAGAI BAHAN BAKU PAPER ROPES (POTENTIAL OF PAPER AS THE RAW MATERIAL FOR PAPER ROPES)

2017 ◽  
Vol 7 (02) ◽  
pp. 91
Author(s):  
Mungki Septian Romas ◽  
Ikhwan Pramuaji ◽  
Lies Indriati ◽  
Sonny Kurnia Wirawan

One of the raw materials furniture common in Indonesia is rattan. Because of the availability of local rattan is very limited so that it is necessary to find alternative raw materials that can be used to substitute the rattan. Paper ropes made from spinning paper, is one of alternative that can be utilized. Paper ropes making from various spinning papers have been studied. Some types of paper were used in this experiment. The spinning papers were characterized and treated to modify its surface properties especially to increase their water resistance. Paper ropes making were done by using the twisting machine and then the physical properties of paper ropes resulted were tested. The results showed that paper surface treatment increased tensile strength, and reduced water absorption and porosity of treated papers. The use of water barrier chemicals and adhesive are effective in increasing water resistance of paper surface. Decreased water absorption and porosity are  20% - 43% and 30% - 98%, respectively. Based on this result, paper ropes is potential to become an alternative raw material for furniture.  ABSTRAKSalah satu bahan baku furnitur umum di Indonesia adalah rotan. Karena ketersediaan rotan lokal sangat terbatas sehingga diperlukan untuk mencari bahan baku alternatif yang dapat digunakan untuk menggantikan rotan. Paper ropes yang terbuat dari spinning paper, merupakan salah satu alternatif yang dapat dimanfaatkan. Pembuatan paper ropes dari berbagai jenis spinning paper telah dipelajari pada penelitian ini. Beberapa jenis kertas digunakan dalam percobaan ini. Spinning paper dikarakterisasi dan diperlakukan khusus untuk memodifikasi sifat permukaannya terutama untuk meningkatkan ketahanan airnya. Pembuatan paper ropes dilakukan dengan menggunakan mesin pemilin dan pengujian sifat fisik paper ropes telah dilakukan. Hasil penelitian menunjukkan bahwa perlakuan khusus permukaan kertas meningkatkan kekuatan tarik, dan mengurangi penyerapan air dan porositas. Penggunaan bahan kimia water barrier dan adhesif cukup efektif dalam meningkatkan ketahanan air permukaan kertas.  Penurunan penyerapan air dan porositas masing-masing sebesar 20% - 43% dan 30% - 98%. Berdasarkan hasil ini, paper ropes memiliki potensi sebagai bahan bahan baku alternatif untuk furnitur.

2018 ◽  
Vol 4 (2) ◽  
pp. 101
Author(s):  
Meldayanoor Meldayanoor ◽  
Arifin Arifin ◽  
Rusuminto Syahyuniar

ABSTRACT The need for board materials continues to increase, therefore the need for new innovations in the form of utilization of plastic waste and rice husks are used as raw material for making particle board where the waste plastic as adhesive and rice husk as filler. The purpose of this research is to know the physical properties such as density, moisture content, and water absorption in order to determine the exact formulation on the particle board that meets the quality standard. SNI 03-2015-2016 quality standard is used as a reference comparison of the results of testing stages of research starting from the processing of raw materials plastick and chaff into sebuk, mixing, and formation of particle board until the testing phase. Elements of particle board formation are rice husks and polyprophylene plastics as adhesives made with Plastic compositions: 40%: 60% 50%: 50% and 40%: 40%: husks. In testing the physical properties of the results showed that the right composition is 60%: 40% because it has results with a particle density of 0.83 g /cm3, a water content of 4.87%, and a water absorption of 10.67%. It is the best result of some predefined compositions and meets the quality standard of SNI 03-2015-2016   Keywords: From The board particles, polyprophylene plastic, chaff rice


Alloy Digest ◽  
1979 ◽  
Vol 28 (9) ◽  

Abstract CENTRI-CAST GRAY IRON 55 is a centrifugally cast gray iron with a nominal tensile strength of 55,000 psi. It is produced in the form of tubing which has a wide range of uses in applications where size and shape are of paramount importance and freedom from pattern cost is an important consideration. Typical applications are seals, bushings, farm machinery, casings and general machinery uses. This datasheet provides information on composition, physical properties, microstructure, hardness, elasticity, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on casting, heat treating, machining, and surface treatment. Filing Code: CI-48. Producer or source: Federal Bronze Products Inc..


Alloy Digest ◽  
2010 ◽  
Vol 59 (12) ◽  

Abstract Dogal 600 and 800 DP are high-strength steels with a microstructure that contains ferrite, which is soft and formable, and martensite, which is hard and contributes to the strength of the steel. The designation relates to the lowest tensile strength. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on forming, joining, and surface treatment. Filing Code: CS-160. Producer or source: SSAB Swedish Steel Inc. and SSAB Swedish Steel.


Alloy Digest ◽  
1968 ◽  
Vol 17 (12) ◽  

Abstract Brush Alloy 190 is a mill-heat treated beryllium copper strip with a tensile strength up to 190,000 psi. It eliminates the need of customer heat-treating by providing high properties combined with exceptional formability. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties as well as fatigue. It also includes information on corrosion resistance as well as forming, heat treating, joining, and surface treatment. Filing Code: Cu-194. Producer or source: Brush Beryllium Company.


2016 ◽  
Vol 881 ◽  
pp. 383-386 ◽  
Author(s):  
Raimundo J.S. Paranhos ◽  
Wilson Acchar ◽  
Vamberto Monteiro Silva

This study evaluated the potential use of Sugarcane Bagasse Ashes (SBA) as a flux, replacing phyllite for the production of enamelled porcelain tile. The raw materials of the standard mass components and the SBA residue were characterized by testing by XRF, XRD, AG, DTA and TGA. Test samples were fabricated, assembled in lots of 3 units and sintered at temperatures of 1150 ° C to 1210 ° C. The results of the physical properties, mechanical properties and SEM of the sintered samples, showed that the formulation, G4 - in which applied 10% of SBA replacing phyllite, sintering temperature 1210 ° C showed better performance as the previously mentioned properties due to the formation of mullite crystals, meeting the prerequisites of standards for enamelled porcelain tile, while reducing the environmental impact and the cost of production.


2021 ◽  
Vol 316 ◽  
pp. 1050-1054
Author(s):  
V.N. Zyryanova ◽  
E.V. Lytkina ◽  
A.P. Ochur-Ool

Increasing water resistance and mechanical strength of hardening magnesian binders’ products can be achieved by introducing microfillings into a hardening dispersed system. It is shown that serpentine provides an increase strength and water resistance in hydration and hardening process, being as a structure-forming component, it intensifies this process. It allows expanding the raw material base for the production of magnesia binders for construction purposes.


Author(s):  
Bindia Sahu ◽  
Jaya Prakash Alla ◽  
Gladstone Christopher Jayakumar

Leather tanning is a stabilisation process of skin fibers. This is achieved by the interaction of collagen amino acids with tanning agents to stabilise skin from putrefaction. Tanning of collagen with oil is a special class of tanning known as chamois tanning. Chemically, the oil tanning involves oxidation of unsaturation present in the oil, which is generally achieved by exposing oil treated skins to air. In this study, Benzoyl peroxide has been used as an accelerating agent for oxidation of unsaturated bonds present in the linseed oil for oil tanning process. Results shows remarkable reduction in tanning duration from fifteen days to two days. The chamois leathers prepared using oxidation accelerant (Benzoyl peroxide) have been evaluated for physical properties such as water absorption (611%), tensile strength (18 N/mm2) and percentage of elongation (66 %) which are found to be better than control leathers.


2008 ◽  
Vol 1 (2) ◽  
pp. 113-120 ◽  
Author(s):  
A. C. Marques ◽  
J. L. Akasaki ◽  
A. P. M. Trigo ◽  
M. L. Marques

In this work it was evaluated the influence tire rubber addition in mortars in order to replace part of the sand (12% by volume). It was also intended to verify if the tire rubber treatment with NaOH saturated aqueous solution causes interference on the mechanical properties of the mixture. Compressive strength, splitting tensile strength, water absorption, modulus of elasticity, and flow test were made in specimens of 5cmx10cm and the tests were carried out to 7, 28, 56, 90, and 180 days. The results show reduction on mechanical properties values after addition of tire rubber and decrease of the workability. It was also observed that the tire rubber treatment does not cause any alteration on the results compared to the rubber without treatment.


2017 ◽  
Vol 1 (3) ◽  
pp. 203
Author(s):  
Rohny S. Maail

This research objectives were to investigate possibility of using the waste of sago cortex (Ela sagu/Wa’a) in the manufacture of cement board and to determine the physical properties of cement board based on the comparison in proportion of materials (cement, sago, water)  and catalyst calcium chloride (CaCl2). Method were applied used completely randomesed design with tree replications in 3x3x3, with total 27 samples of cement board. The results shown that the waste of sago cortex ca be applied as raw materials to manufacture of cement board and fulfill the standard of particle board (JIS A 5908, 2003). The board have dencity which is almost equal to the target of dencity, lower value in water content, water absorption and thichness swelling so that have good performance in quality and stability dimensions. The sago cortex in side of base and the catalyst CaCl2 in 6% gave high performance for all physical properties of cement board.


Author(s):  
Norman Herz ◽  
Ervan G. Garrison

Archaeological ceramics refers to products made primarily of clay and containing variable amounts of lithic and other materials as well. The term ceramic is derived from the Greek keramos, which has been translated as "earthenware" or "burned stuff." Ceramics include products that have been fired, primarily pottery but also brick, tile, glass, plaster, and cement as well. Since pottery is by far the most important archaeologically, and the methods of sampling and study are largely applicable to the others, this chapter is devoted primarily to pottery. Pottery then is the general term used here for artifacts made entirely or largely of clay and hardened by heat. Today, a distinction is sometimes made between pottery, applied to lower-quality ceramic wares, and the higher-grade product porcelain. No such distinction will be made here, so the term pottery alone will be used. Raw material that goes into the making of a pot includes primarily clay, but also varying amounts of temper, which is added to make the material more manageable and to help preserve the worked shape of the pot during firing. Of primary interest in ceramic studies are 1. the nature and the source of the raw materials—clays, temper, and slip (applied surface pigment)—and a reconstruction of the working methods of ancient potters; 2. the physical properties of the raw materials, from their preparation as a clay-temper body through their transformations during manufacture into a final ceramic product; 3. the nature of the chemical and mineral reactions that take place during firing as a clue to the technology available to the potter; and 4. the uses, provenance, and trade of the wares produced. Much of the information needed to answer these questions is available through standard geochemical and petrographic analysis of ceramic artifacts. Insight into the working methods of ancient potters also has been obtained through ethnographic studies of cultures where, because of isolation or conservative traditions or both, ancient methods have been preserved.


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