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Introduction Epoxy has good mechanical properties, chemical resistance, high bond strength, and low shrinkage, so epoxy is widely used in many applications, including adhesives, coating and matrix of advanced composites materials [1].
However, epoxy is brittle in nature, so it is not suitable for structures subjected to dynamic and fatigue loadings, which need high toughness materials.
Methods Materials.
Ou, Mechanical behavior of liquid nitrile rubber-modified epoxy resin: experiments, constitutive model and application, International Journal of Mechanical Sciences. 151 (2019) 46–60. https://doi.org/10.1016/j.ijmecsci.2018.11.003
Formela, Modification of Ground Tire Rubber—Promising Approach for Development of Green Composites, Journal of Composites Science. 4 (2019) 2. https://doi.org/10.3390/jcs4010002

Ishida: Materials Science and Engineering A Vol. 273-275 (1999), p.106 [35] A.
Gao: Journal of Engineering Materials and Technology Vol. 145 (2001), p.107 [38] W.M.
No: Materials Science Forum Vol. 394-395 (2002), p.467 [41] M.
Miyazaki: Materials Science Forum Vol. 475-479 (2005), p.2037 [49] M.
Allen: Materials Science and Engineering A Vol. 273-275 (1999), p.784 [51] M.

This research investigated the preparation of Hydroxyapatite and Fibroin from natural materials.
Current research areas in biomaterials include the synthesis of bioactive/biodegradable materials from natural materials.
Hin, Engineering materials for biomedical applications,Bio - materials engineering and processing series Vol.1 [3] John G.
Scheibel, Composite materials based on silk proteins, Progress in Polymer Science 35 (2010), 1093-1115 [4] Ming Nia, Buddy D.
Khil, Hak Yong Kim, physiochemical characterization of hydroxyapatite extracted from bovine bones by three different methods: Extraction of biologically desirable Hap, Materials Science and Engineering C 28 (2008), 1381-1387 [7] J.P.

This study investigated competitor products listed on company websites, gauge customer preferences to understand their likes and pursuits, and segment competitors to assess the popularity of materials used in Southeast Asia.
Journal of Science and Technology Policy Management, 15(3), 506-529
The International Journal of Logistics Management, 31(2), 209-238
Journal of Southeast Asian Economies (JSEAE), 40, 32 - 63.
Innovative Economics Journal, 1(1), 8-15

Morphology of Heated of Borassus Flabelifer L Fiber at (a) 6500C, (b) 7500C, (c) 8500C by SEM Surface Area The BET (Brunauer-Emmett-Teller) test was used to determine the surface area of materials.
Journal of Cleaner Production 11, no. 5 (2003): 499-509
Journal of the Taiwan Institute of Chemical Engineers 63 (2016): 250-258
In IOP Conference Series: Earth and Environmental Science, vol. 737, no. 1, p. 012013.
In Materials Science Forum, vol. 966, pp. 444-450.

Introduction The development and production of biodegradable starch-based materials have undergone a significant acceleration due to oil shortages and the growing interest in easing the environmental burden of petrochemically derived polymers.
As one of the world’s most abundant organic raw materials, starch has been widely studied during the past decades.
Materials and Experimental Materials Triethyleneamine, TEA (purity 99 %) and DMSO-d (purity 99.9%) were purchased from Sigma-Aldrich. 4-(dimethylamino)-pyridine, DMAP (purity 99 %), ethyl-α-bromoisobutyrate, EbiB (purity 99 %), α-bromoisobutyrylbromide, BiBBr (purity 99 %) were purchased from Sigma.
Mostafa, Journal of Applied Polymer Science 56 (1995) 263–269 [9] M.
Haron, Journal of Applied Polymer Science 77 (2000) 784–791 [10] M.

A Cellulase and amylase are important enzymes for hydrolysis of cellulose and starchy material into the glucose.
Methodology Materials Polysulfone was purchased from Amoco Chemical (M) whereas 1-Methyl-2-pyrrolidone (NMP) was purchased from Merck Chemical.
Preziosi-Belloy Belleville: Journal of Membrane Science Vol.241 (2004), p.161–166 [9] S.H.
Petach: Journal of Biochemistry Vol. 317 (1996), p.1–11 [13] Z.
Xu: European Polymer Journal Vol. 43 (2007), p. 3710–3718

Acknowledgements This work has been supported by the National Natural Science Foundation, China (Grant No. 60473134), and the National High- Tech.
JOURNAL OF SHENYANG LIGONG UNIVERSITY.
JOURNAL OF SHENYANG LIGONG UNIVERSITY.
Journal of Materials Processing Technology.

The elastic modulus of structure material is E=6.889´104MPa, and the Poisson's ratio is g =0.3.
Fig. 2 First-order mode of optimal topological configuration Fig. 3 First-order mode shape of topological configuration Fig. 4 Second -order mode of optimal topological configuration Fig. 5 Second -order mode shape of topological configuration Fig. 6 Third -order mode of optimal topological configuration Fig. 7 Third -order mode shape of topological configuration From the figure we can see that the material is removed at the end of wave deformation of topology, it is a kind of bottleneck structure; and then, the location of the bottleneck in 1-order buckling mode topology is exactly at 0.7L of the long bar, which is the length of bar after conversion.
Peng: Journal of Huaqiao University (Natural Science), Vol. 23 (2002) No. 1, pp. 45-49
Wen: Journal of Beijing Institute of Technology, Vol. 19 (1999) No. 1, pp. 29-33 [6] Y.K.
YE: Chinese Journal of Computational Mechanics, Vol. 25 (2008) No. 3, pp. 345-351

The key point in this research is to study the thermal induced deformation and the major factors are temperature difference and material properties which are not affected by above errors, thus, we can say that the simulated temperature distribution is acceptable and could be used as boundary conditions for further structure simulation.
Fig. 6 Temperature field of experiment Acknowledgement This work is supported by the National Natural Science Foundation of China (No.50805114) and National Basic Research Program of China (“973” Program) (Grant No. 2011CB706800).
Zhao: International Journal of Machine Tools and Manufacture, Vol. 47 (2007), p. 1003
Ohishi: Precision Engineering Journal of the International Societies for Precision Engineering and Nanotechnology, Vol. 26 (2002), p.49
Choi, D.Lee: International Journal of Machine Tool & Manufacture, Vol. 38 (1998). p.1017