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Therefore, developing materials based on secondary wastes and giving biodegradability to these materials have received priority [5].
When preparing materials from multilayer combined packaging wastes, the main difficulty is in disaggregating of layers [13].
As a result of separating packaging wastes based on multi-layer combined materials, four types of raw products were obtained.
Lacabanne, Influence of the environment during a photodegradation of multilayer films, Journal of Applied Polymer Science, 133 (2016) 1-7
Olkhov, Biological degradation of gas-filled composite materials on the base of polyethylene, IOP Conf.

Piezoelectric Generators in the Energy Harvesting Systems GRZYBEK Dariusz AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Process Control, 30 Mickiewicza Av., 30-059 Krakow, Poland dariusz.grzybek@agh.edu.pl Keywords: piezoelectric materials, piezoelectric generator, energy harvesting, wireless monitoring Abstract.
Sodano, A review of power harvesting using piezoelectric materials (2003–2006), Smart Materials and Structures. 16(2007) R1-R21
Purekar, Comparison of monolithic and composite piezoelectric material–based energy harvesting devices, Journal of Intelligent Material Systems and Structures. 25(2014).1825-1837
Roundy, On the Effectiveness of Vibration-based Energy Harvesting, Journal of Intelligent Material Systems and Structures. 16(2005) 809-823
Richard, Materials, structures and power interfaces for efficient piezoelectric energy harvesting, Journal of Electroceramics. 22(2009) 171-179

Photoluminescence and afterglow behavior of Eu2+, Dy3+ and Eu2+, Sm3+ in Sr3Al2O6 matrix Chao XU, Dian-qing LU School of Science, Huaihai Institute of Technology, Lianyungang, 222005 China E-mail address: xch09@126.com Keywords: Strontium aluminate; Red long afterglow material; Electron trap Abstract: The long afterglow luminescent materials Sr3Al2O6: Eu, Sm and Sr3Al2O6: Eu, Dy (denoted as S1 and S2, respectively) were synthesized via solid-state reaction.
SrCO3(99℅), Al2O3(99℅), Eu2O3(99.99℅), Sm2O3(99.9℅), Dy2O3(99.9℅) and H3BO3(99.5℅) were employed as the raw materials.
The materials were weighted according to the composition of (Sr2.8Eu0.1Re0.1)(Al1.8B0.2)O6 (Re= Dy, Sm).
The raw materials added with proper analytical alcohol were mixed by a magnetic stirring for 2 h, and then dried at 100 °C for 8 h.
Journal of Luminescence, 2010, 130: 347–350

In addition, the strain rates of the materials active zone under different ratio of the active zone to the window radius of the materials were investigated.
The materials can bent, contracted or extended under electrical field.
ZHAO: Polymer Materials Science and Engineering, Vol. 23 (2007) No.4, p.250-253 (In Chinese)
DAI and X.M.QI: Journal of Materials Science and Engineering, Vol. 26 (2008) No.1, p.156-160 (In Chinese)
[5] Federico Carpi:.Materials Science and Engineering C, Vol. 24 (2004) No.2, p.555-562

Nano Fe3O4/Polymerization Ferric Chloride Composite Materials in the Application of Hydroxybenzene Wastewater Yuncheng XIE1, 2 1College of Materials and Chemical Engineering, Chongqing University of Arts and Sciences, 402160, China 2Key Laboratory of Water Environmental Restoration, Chongqing University of Arts and Sciences, 402160, China email:dyxieyuncheng@sina.com Keywords: Nano Fe3O4.Polymerization ferric chloride.Composite materials.Phenolic wastewater Abstract: Fenton’s reagent method optimizes conventional wastewater oxidization treatment technologies to remove biodegradable organic matter that cannot be removed.
In this paper, ferric chloride hexahydrate, iron (II) chloride tetra hydrate, and ammonia act as raw materials in preparing the nano-iron oxide / polymer composite material ferric chloride.
Materials & Methods Selected materials.
Science and technology information.2008 (29):76
Journal o f Mater ials Science & Eng ineering.2009, 3 (6):353-354

Design and Analysis of Automotive Multi-Leaf Springs Using Composite Materials N.
Studies were conducted on the application of the composite materials for automobile suspension system (leaf springs) [2,3].
Al-Qureshi: Automobile leaf spring from composite materials, Journal of Material Processing Technology, Vol.118, (2001), pp.58-61
Venugopal Gowd: Static Analysis of Leaf Springs, International Journal of Engineering Science and Technology, Vol. 4, No. 8, (2012), pp. 3794-3803
[5] G.S.Shiva Shankar and S.Vijayarangan: Mono composite leaf springs for light weight vehicle- design, end joint analysis and testing, Material Science, Vol. 12, No.3, (2006), pp. 220-225

Application of IR spectroscopy in WPC Matrix materials.
Filling materials.
The waste materials and branches of wood and bamboo, annuals and crops are the filling materials of WPC.
The shape of the filling materials can be fiber and chip.
Supplementary materials.

[2] VenugopalM.M., MaharanaS.K., BadarinarayanK.S., Finite element evaluation of composite sandwich panel under static four point bending load, Journal of Engineering, Science and Technology Management. 2 (2013)
[3] Sayyidmousavi A., MalekzadehK., BoughararH., Element buckling analysis of laminated composite sandwich panels with transversely flexible core containing a face/core debond, Journal of Composite materials. 46 (2011) 193-202
[9] Minakuch iS., Okabe Y., Takeda N., Real-time detection of debonding between honeycomb core and facesheet using a small-diameter FBG sensor embedded in adhesive layer, Journal of Sandwich Structures and Materials. 9 (2007) 9-33
[11] Ramlya R., Embedded FBG sensor in aircraft smart composite materials for structural monitoring, Applied Mechanics and Materials. 393 (2013) 311-316
[13] Tsai S.W., Wu E.M., A general theory of strength for anisotropic materials, Journal of Composite Materials. 5 (1971)58–80

Using the material blending menu, the system accepts the liquid density which input by user and calculates the weight of each material automatically.
Initial Foundation of Henan University of Science & Technology for financial support of this research work.
Lu: Journal of Process Control, Vol. 17 (2007) No.5, p.191-201
Ma: Journal of System Simulation, Vol. 11 (2007) No.9, p.2594-2598.
Su: Journal of Process Automation Instrumentation, Vol. 27 (2006) No.3, p.56-59.

In microscopic scale, a detailed representation of the hexagonal cells may simulates the impact process of small materials reasonably well [1-2], but in macroscopic scale, due to its computational complexity, such detailed structure is unsuitable for simulating impact process upon auto mobile part.
Acknowledgment Supported by the National Natural Science Foundation of China (No. 11271247).
[4] Heimbs and Sebastian, "Virtual testing of sandwich core structures using dynamic finite element simulations," Computational Materials Science, vol.45, pp. 205-216, 2009
Cai, "Nonlinear property of the visco-elastic-plastic material in the impact problem," Journal of Shanghai University(English Edition), vol.13, pp. 23-28, 2009
Tanner, "A new constitutive equation derived from network theory," Journal of Non-Newtonian Fluid Mechanics, vol.2, pp. 353-365, 1977