A new environmentally friendly insulating material designed from natural materials

2020 ◽  
Vol 255 ◽  
pp. 119357 ◽  
Author(s):  
Jülide Erkmen ◽  
Halil Ibrahim Yavuz ◽  
Erbil Kavci ◽  
Mihriban Sari
Author(s):  
Eva Mai Sa’adah ◽  
Isnawati Isnawati ◽  
Noraida Noraida

The Influence of Fermented Cassava (Manihot utilissima) Solutions as Atraktan in Mosquito Trap on The Number of Mosquitoes Trapped. The use of synthetic insecticides can cause health hazards to humans. Mosquito trap made of disused plastic bottles plus mosquito atraktan from natural materials is an alternative that is more economical, safe and environmentally friendly. One of the mosquito atraktan compounds is CO2. Fermented cassava is potentially as mosquito atraktan because it can produce CO2. This study aimed to know the influence of fermented cassava solutions as atraktan in mosquito trap from plastic bottles on the number of mosquitoes trapped. Type this study was Quasi Experiment. Design this study was Post-test Only with Control Design. The concentration of fermented cassava solutions was used in this study was 0% (control), 10%, 30%, 50% and 70%. The results showed the number of mosquitoes trapped at a concentration of 0% (control), 10%, 30% and 70% as much as 0 tail, whereas the konentrasi 50% as much as 1 tail. Kruskal Wallis test results showed no significant effects of the concentration of fermented cassava solutions.


2011 ◽  
Author(s):  
Youngjin Cho ◽  
Christine Y. Ouyang ◽  
Marie Krysak ◽  
Wenjie Sun ◽  
Victor Gamez ◽  
...  

Author(s):  
Lakshmi Devaraj

The rich cultural legacy of Kerala is well known for its art and crafts and ecological tourism. Most of the state's crafts are constructed of natural materials and qualified craftsmen play an essential part in their creation. There has been a tradition of creating fine crafts with items such as ivory, bamboo, palm leaves, sea-shells, wooden coconut shells, clay, cloth, metal, stone etc. It has an edge to the state the environmentally friendly craft industry. The present study examines the impact of handicrafts workers in related to their employment, financial aspects, exporting the traditional handicraft products, socio - economic conditions of workers and marketing channels. The study focus to find out the problems of workers and thus helpful to the handicraft development society by providing suitable suggestion


Author(s):  
Raimondas ŠADZEVIČIUS ◽  
Vincas GURSKIS ◽  
Dainius RAMUKEVIČIUS

Sustainable (environmentally friendly) modern construction is not limited only to use of natural and environmentally friendly materials. The concept of the construction is an important factor and that is applied to local materials, especially if they come from renewable sources. The sustainable (environmentally friendly) building principles, methods of construction from straw, the essential building requirements for construction from straw are discussed in the article. Straw as a building material used for a very long time, but this usage is often associated with certain mistrust, fears: the building will burn, the mice, rats are attacking, etc. Straw building uses raw materials which are agricultural waste. Buildings constructed from straw decompose in the end of their lifecycle and the construction waste in the area of construction is biodegradable, consequently, it is not necessary to take them away to a landfill. The evaluation of the global and Lithuanian experience of using straw and the structures in which straw are used shows, that the essential requirements can be provided if the straw and timber-framed buildings with straw as a heat insulating material are constructed properly, they use to meet the essential requirements according to the Law on Construction and the European Council and Parliament Regulation No 305/2011.


2021 ◽  
Vol 6 (2) ◽  
pp. 90
Author(s):  
Ajeng Ayu Ramadhani ◽  
Nirmala Fitria Firdhausi

<p><strong>Bioplastics are environmentally friendly plastics derived from natural materials. Bioplastics are easier to decompose when compared to commercial plastics. Bioplastics are generally made from starch contained in plants. But the use of starch as a base material has the disadvantage of producing bioplastics that are not waterproof. Therefore, it is necessary to add chitosan to improve bioplastic characteristics. Chitosan usually comes from the shell of crustacean animals, but it turns out that in fish scales waste, also contains chitosan. Fish scales are a by-product of the process of fish processing. Fish scales are only discarded and not utilized so that they become waste that can pollute the environment. Fish scales have a chitin content that can process into chitosan, which can be useful as an additional ingredient in the manufacture of bioplastics. This review aims to find out the potential of fish scales waste as chitosan in the manufacture of bioplastics. Based on the results of previous research, fish scales have a chitosan content that can use as an additional ingredient in the manufacture of bioplastics. Fish scale chitosan can form bioplastic film with characteristic brownish-yellow film. The addition of fish scale chitosan is also able to improve the water resistance of bioplastic film. Based on the results of the review can be concluded bring fish scales to have the potential as chitosan that can use in the manufacture of bioplastic.</strong></p><p><strong>Keywords –</strong> <em>Bioplastic, Chitosan, Fish Scales.</em></p><p> </p>


POROS ◽  
2018 ◽  
Vol 16 (1) ◽  
Author(s):  
Sofyan Djamil Djamil

Natural materials are environmentally friendly materials that can be made as components of matrix and reinforcement. Wood is part of the stem or branches and twigs of hardened plant due to lignification. Bamboo is a type of grass plants belonging to the order Graminae, familia Bambuseae, rooted fibers, the trunk-shaped cylinder with a diameter that varies from base to tip, hollow, hard. The composite is a composite of two or more materials that are integrated macroscopically and form a new properties. The composite type used in the laminate composite consists of two different layers of material and combined together, using adhesive, the manufacturing process using the hand lay up method. Matrix used balsa and mahoni wood, for reinforcement used type of bamboo apus molded basket woven. Bending test, using ASTM D7264 / D7264M-07 standard. The results of the experiment by testing each test, using 3 test specimens, then taken the average value. For balsa wood matrix, with plain woven reinforcement, buckling strength with value 35.60 ± 2.30 MPa, for balsa wood matrix, with basket woven reinforcement, buckling strength with value 32.64 ± 4.20 MPa. For mahoni matrix, with plain woven reinforcement, buckling strength of 55.15 ± 4.89 MPa, for mahoni matrix, with basket woven reinforcement, buckling strength of 77.15 ± 4.88 MPa. From these data shows that by using mahoni matrix the buckling strength is greater than using balsa wood matrix, either using plain or basket woven.


2012 ◽  
Vol 51 (4) ◽  
pp. 324-335 ◽  
Author(s):  
L. Ansone ◽  
M. Klavins ◽  
A. Robalds ◽  
A. Viksna

Water contamination with arsenic compounds is a serious problem. One of the solutions is to develop new sorbents based on natural materials that would be cost-effective and environmentally friendly. New sorbents based on biomaterial impregnation with iron oxyhydroxides have been developed. Raw peat material, iron modified-peat, sand, iron modifiedbiomass (shingles, straw) were used for removal of arsenic compounds. The highest sorption capacity was observed for iron modified-peat. Kinetic studies indicated that most of arsenates were removed within 2 hours, and arsenate sorption on iron modified-peat was characterized by the pseudo-second order rate law.


2017 ◽  
Vol 13 (12) ◽  
pp. 182
Author(s):  
Karuna Kwangsawat ◽  
Yanin Rugwongwan

This article presents an environmentally friendly furniture design guideline which comes from different socio-economic conditions, including personality and physical residence of consumers in Thailand, and is a test for the perception of environmentally friendly furniture style, in order to find the style of environmentally friendly furniture in consumers with different economic backgrounds and perception of the environment. The research found that the needs for the style of environmentally friendly furniture according to different socio-economic conditions were in the same direction, which means that consumers need modern environmentally friendly furniture in western style, using natural materials in manufacturing with high technology, and furniture color in a cool shade. Therefore, the designer should consider the different socio-economic conditions of consumers that affect the needs differently, and use this as a furniture design guideline that is environmentally friendly and appropriate for the needs of consumers. 


Sign in / Sign up

Export Citation Format

Share Document