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green concept.Greening of packaging materials include material of non-toxic and easy degradation and decrement,selection of high performancematerials and so on.[3] Specific requirements are as follows:when selecting packaging materials,priority selection of repeatable reuse and regeneration of packaging materials,edible materials,biodegradable materials,paper materials, improve the utilization rate of resources,realize sustainable development;Avoid to choose toxic or radioactive materials,especially the food packaging;On the outer surface of packaging materials for writing,such as indicating the types of plastic materials, etc.
cylinder is a packaging structure close to the sphere,Save more materials than the cube material form.Aftercalculation,as the high 2 times the radius of cylinder,the surface area is the smallest,that is to say the most saving material.Finally, the material cycle concept.Recyclable properties of packaging design,basically refers to what the use of packaging materials and waste at a particular time period will become the part of the whole ecosystem cycle.should avoid becominguseless from organic or inorganic resources.When the product at the end of the useful life return to the factory,Its material and the new product can be used for manufacturing the same value。
As a result,the use of natural, safe biodegradable materials design products,can be returned to the soil again after using add fertilizer to the ecosystem,rather than consumption.[5] The concept of green design in packaging design Green design concept of packaging design is reflected in three aspects,the choice of green packaging materials, the structural design of the green packaging and green packaging visual design.First of all kinds of green packaging materials mainly include the following:the paper material,the paper mainly is a natural plant fiber of raw materials,it is non-toxic, tasteless,will soon rot in the nature and not cause environmental pollution.Paper material quality is light, easy to transport and low production cost.[6]The paper material processing performance and the printing performance are good.Paper pulp molding products have low price, shockproof, good air permeability characteristics;Bamboo is one of the common natural packaging material.The limitations and
shortcomings of wood packaging shows more and more in our country.Our country's forest coverage is reducing unceasingly,in addition our country's wood packaging had difficulty in sales beyond seas.Therefore,use of the other green packaging material instead of wood packaging materials has become a necessity.Bamboo is the preferred material,bamboo yield is higher than the trees,that become shorter,easy to shape,wide application and low cost.[7]Repeatable reuse and regeneration of packaging materials,using recycled material is one of the effective ways to realize green packaging.Such as beer, beverage packaging used the glass bottle packaging,and could be used repeatedly.Using recycled materials not only can improve the utilization rate of packaging materials, and can save a lot of energy.For example,Aveda company produces the cosmetic box, powdery cake box and lipstick,that used aluminum packaging material,income of 85% is from cans recycling.Edible packaging materials,the main edible packaging
materials are edible packaging film and edible cling film.The wafer on the candy packaging and packing ice cream corn baking cup are typical of edible packaging.

Poprawe, "Laser additive manufacturing of metallic components: Materials, processes and mechanisms," International Materials Reviews, vol. 57, no. 3, pp. 133-164, 2012
O'Neill, "High density net shape components by direct laser re-melting of single-phase powders," Journal of Materials Science, vol. 37, no. 15, pp. 3093-3100, 2002
This approach enables a process simulation of overprinting of temperature-unstable materials using the PBF-LB/M process.
Oancea, "A metallurgical phase transformation framework applied to SLM additive manufacturing processes," Materials and Design, vol. 166, 2019
Zuo, "Simulation of temperature distribution in single metallic powder layer for laser micro-sintering," Computational Materials Science, vol. 53, no. 1, pp. 333-339, 2012

It has resulted from the aspiration to create the eco-friendly material which was not inferior in quality and performance properties of modern synthetic materials.
Lande, Challenges in wood modification technology on the way to practical applications, Wood Material Science and Engineering, 4, 2009, 23-29
Toppinen, Production and markets of modified wood in Russia, Wood Material Science & Engineering, 2015
Constant, The water vapour sorption properties of thermally modified and densified wood, Journal of Materials Science, 47 (2012) 3191-3197
Safina, Study of the physical and energy properties of fuel granules based on a thermomodified wood raw material, Journal of engineering physics and thermophysics, 88(4) (2015) 958-961

Zussman: Journal of Materials Science: Materials in Medicine, Vol. 19(2008)No.3, p.1249
Lee: Journal of Materials Science: Materials in Medicine, Vol.21 (2010)No.6, p.1969
Ramakrishna: Journal of Materials Science: Materials in Medicine, Vol.19(2008) No.5, p.2039
Abraham: Journal of Materials Science: Materials in Medicine, Vol. 20(2009)No.10, p.2129
Zhang and Z.Li: Journal of Materials Science: Materials in Medicine, Vol.19 (2008) No.11, p. 3373

One of the methods treating these materials is the consolidation of high-level radioactive waste (HLW) into inactive-towards-environment materials, such as glass, glass ceramics, and various mineral-like materials.
Raw materials.
The five different content Perovskite mineral-like materials.
Conclusion Perovskite mineral-like materials is a good vehicle for the consolidation of high level waste.
Elsevier Science Publ.B.V., (1988)

However, the superior properties of these materials could also become hurdles when shaping them.
Taya, Surface characterization of SiC wisker/2124 aluminium and Al2O3 composites machined by abrasive water jet, Journal of Materials Science, (1988) 23, 1453-1458
Taya, EDM machinability of SiCw/Al composites, Journal of Materials Science, 24 (1989),1103-1108
Singh, Experimental investigation and optimisation in EDM of Al 6063 SiCp metal matrix composite, International Journal of Machining and Machinability of Materials, 3 (2008), 293-308
Yan, Blind-hole drilling of Al2O3 6061Al composite using rotary electro-discharge machining, Journal of materials processing technology,102, (2000), 90-102.

With analog biogas as raw material, this study investigated biogas upgrading by water scrubbing with adsorption materials used for scrubber picking.
Materials and methods Experimental material Biogas water scrubbing upgrading is basis on the different solubility in water of different gas in biogas.
Adsorption materials packing zeolite pellet and clay ring are useful for improve the scrubbing effect and their advantages would be more marked under higher operating pressure.
Reviews in Environmental Science and Bio- Technology, 2006(5):93–114
Journal of Hazardous Materials 144 (2007) 698–702

Many materials have been used as carbon sources, including proteins and other natural sources to produce N-doped carbon.
DOI: 10.3390/coatings12101543 [2] Qun-fang Zhao et al., Surface modification of LiFePO4 by coatings for improving of lithium-ion battery properties, Intertional Journal of Electrochemical Science, 17 (2022) 221142, 1-11.
DOI: 10.1038/ncomms14070 [10] Binling Chen, Zhuxian Yang, Yanqiu Zhu, and Yongde Xia, Zeolitic imidazolate framework materials: recent progress in synthesis and applications, Journal of Materials Chemistry A, 2 (2014) 40, 16811-16831.
DOI: 10.21315/jps2017.28.s1.14 [17] Xue-Wen Zhang et al., Nitrogen-doped porous carbons derived from isomeric metal azolate frameworks, Journal of Materials Chemistry A, 5 (2017) 46, 24263-24268.
DOI: 10.1002/anie.200503778 [26] Mithun Sarker, Biswa Nath Bhadra, Pill Won Seo, and Sung Hwa Jhung, Adsorption of benzotriazole and benzimidazole from water over a Co-based metal azolate framework MAF-5(Co), Journal of Hazardous Materials, 324 Part B (2017), 131-138.

In this paper two materials to be used most possibly, steel and concrete, are considered.
In this paper two materials to be used most possibly, steel and concrete, are discussed.
The sealness layer materials could be steel such as stainless steel or organic materials such as rubber.
Summary According to the above analysis, some conclusions about the materials and structure of ETT tube wall could be gotten: l Steel, concrete and winding large diameter PVC-U are possible materials for making ETT tube.
Chengdu: Journal of Modern Transportation, Vol. 19(2), June 2011, pp.110-113

Fabrication and Characterization of Composite Materials Using Multiple Waste Materials (Leather & Jute Fabrics) and Unsaturated Polyester Resin Md.
So, utilization of waste materials along with reduction of using synthetic materials will definitely subside the environmental pollution.
If these waste materials cannot be processed into commercial materials, they will be problematic for the industry.
But, waste jute and leather-based composites are new in the field of materials science.
Journal of Natural Fibers. 2021 Mar 26:1-3