Eksplorasi material daur ulang kantong plastik dengan teknik origami

Shopping plastic bag is a thermoplastic type LDPE and HDPE, that can be heated with hotpress. Through this recycling process come new material that can used for product material. The recycle plastic material has a lot of potential to be used as a product application. market research From founded many brands that try to recycle plastic still using another new material to give support to the plastic recycle material. Origami is a paper folding art that is commonly known by everyone. The study tried to apply the origami technique on recycled plastic bag material that has been heated with hotpress machine. With origami technique 90% the product can be made with this material entirely without the help of sewing and other materials. This is seen as an opportunity for the market that still use many new materials to support this material. The folding gives construction to the one sheet material and give new function to the recycle plastic material. The research uses experimental method. Series of paper origami patterns are applied on the recycle material, till founded several folding that can be apply on the recycle plastic sheet material. The research result is a variety of functional products made with origami techniques that have been egistered design industry copy wright.

Penerapan Pendekatan Sains Teknologi Masyarakat Pada Materi Daur Air Dalam Meningkatkan Hasil Belajar Siswa Di Kelas VI SD Negeri 139 Tea Musu Kabupaten Bone

This study used a qualitative approach and type of classroom action research. The problem formulation of this research is whether the application of Community Technology Science approach on the water cycle material can improve the learning outcomes of grade 6 students at SD Negeri139 Tea Musu? And how is the process of applying the Community Technology Science approach to the water cycle material in improving the learning outcomes of the 6th grade students of SD Negeri139 Tea Musu? The purpose of this research is to improve the learning outcomes of grade 6 students of SD Negeri139 Tea Musu on the water cycle material through the application of Science Community Technology approach, as well as to improve the process / activity of learning water cycle materials through the application of Science Technique VI class VI SD Negeri139 Tea Musu. The object of this research is the students of class VI SD Negeri139 Tea Musu. Data collection techniques used were teacher and student observation, and documentation. Based on the results of analysis and evaluation at the reflection stage, the results showed that, the application of Science Community Technology approaches effectively improve the process / activity and learning outcomes in the Water Recycle material in every cycle of action.

TEKNIK FUSING PADA DAUR ULANG LIMBAH KANTONG PLASTIK DAN IMPLEMENTASINYA PADA DESAIN PRODUK

Indonesia has become the second larget plastic waste contributor in the world after China. Saddens by this fact, this research is conducted to recycle plastic bag waste. Fusion technique is a technique to fuse two or more plastic plies by heating them. It is easily done because the equipment need is very easy to find. With fusion technique the plastic waste can be turned into durable and waterproof material. In this research, a card wallet is made out of the recycle material. Carry goods is a commodity that is continuously needed by market. The research used material driven design process, in which tries to explore the recycle material both in technical and experiential qualities. Aside from material exploration, this research also studiesabout user perception regarding this material, this study is needed to remove the waste stigma. From the study founded thatemotional and performative are affecting each other. The three traits that user about plastic fusing material are pattern, contras color and transparency. The results are design recommendation on how to design using this new material and functional products like wallet designed with different style that express the material uniqueness.

Penerapan Pendekatan Sains Teknologi Masyarakat Pada Materi Daur Air Dalam Meningkatkan Hasil Belajar Siswa Di Kelas VI SD Negeri 139 Tea Musu Kabupaten Bone

This study used a qualitative approach and type of classroom action research. The problem formulation of this research is whether the application of Community Technology Science approach on the water cycle material can improve the learning outcomes of grade 6 students at SD Negeri139 Tea Musu? And how is the process of applying the Community Technology Science approach to the water cycle material in improving the learning outcomes of the 6th grade students of SD Negeri139 Tea Musu? The purpose of this research is to improve the learning outcomes of grade 6 students of SD Negeri139 Tea Musu on the water cycle material through the application of Science Community Technology approach, as well as to improve the process / activity of learning water cycle materials through the application of Science Technique VI class VI SD Negeri139 Tea Musu. The object of this research is the students of class VI SD Negeri139 Tea Musu. Data collection techniques used were teacher and student observation, and documentation. Based on the results of analysis and evaluation at the reflection stage, the results showed that, the application of Science Community Technology approaches effectively improve the process / activity and learning outcomes in the Water Recycle material in every cycle of action.

Feasibility Study of Zirconia Waste Recycling Obtained during the Machining of Single and Multiple Dental Prosthesis

Zirconia ceramic stabilized with 3% yttria (3Y - TZP) is the most used ceramic dental materials. During the machining of zirconia blocks in the laboratory to prepare the various types of prostheses, much of the material is lost in powder form, which is subsequently discarded. This study investigates the possibility to recycling of zirconium oxide powder obtained during milling of dental crowns and bridges. Uniaxial and isostatic pressed samples were prepared, sintered and compared to the commercial material. The results indicated that the isostatic pressed samples shows good physical and mechanical properties, comparable to the commercial material, demonstrating the viability to use this recycle material in the same process.

Investigation on Microstructure and Mechanical Properties of Directional Solidified DZ417G Alloy with Different Proportion of Recycling Alloy

The DZ417G alloy with different proportion of recycling material was fabricated by directional solidification, and its microstructure and mechanical properties were investigated. The results show that the microstructure of the directionally solidified alloy changes little, which indicates the recycling material has little effect of on the alloy. However, the ductility of the directional solidified alloy with different proportion of recycling material changes greatly. With the increase of the recycling materials, the mechanical properties of the alloy decrease firstly and then increase a little and decrease at last. But the strength of the alloy almost has no change. The alloy with 70%recycle material has the relative better mechanical properties.