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Effect of Different Curing Catalysts on Curing Behavior of Transparent Epoxy Molding Compound for SMD LED Packaging Yan-Fang CHENGa, Ying ZHOUb, Ran YANc, Yuan-Kai CHENd, Ming LIANGe, Yang-Jie LINf and Ming-Shan YANGg,* Department of Material Science and Engineering, Beijing Key Lab of Special Elastomer Composites Materials, Beijing Institute of Petrochemical Technology, Beijing 102617, China a jinhong616-mail@qq.com , bzhouying@bipt.edu.cn , cranyan1988@163.com, dchenyuankai@bipt.edu.cn, eliangming@bipt.edu.cn, flinyangjie@bipt.edu.cn, gyangms001@126.com *Corresponding author Keywords: light-emitting diode (LED); transparent epoxy molding compounds (EMC); non-isothermal curing kinetics Abstract.
Experiments Material Bisphenol-A epoxy resins(EP), South Asia Electronic and Material Co.
Then the material is mixed with the double roller mixing mill under the constant temperature of 80°C.
Acknowledgements This research was financially supported by the Graduate Innovation Foundation, the University Student Research Training(URT) Project and BIPT-supported Project of Outstanding Professors and Management Experts(BIPT-POPME-2014) of Beijing Institute of Petrochemical Technology, and by New Materials Research and Development of Scientific Research Base Project of Beijing Government.
Journal of polymer, 2006 (4):21-25.

Introduction In recent decades, polylactide materials received the widespread attention due to its excellent properties, such as good biodegradation, biocompatibility and the non-toxic for organism.
Due to the emphasis on the non-toxic materials on the body, so whether they are raw materials or catalysts for catalytic reaction are to make use of low toxicity and even non-toxic drugs.
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Experimental section Materials.
The preparation process is simple, and raw materials are cheap and easily accessible.
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Fu: The Seventh National Symposium on the Science and Technology of Catalyst Preparation (Shanxi, China, July 27-29, 2009). p.56.
Carvalhob: Materials Chemistry and Physics, (2013) No. 119, p. 418

Materials and methods Materials.
The material heat preservation time was 30 minutes after melting, then the material was cas into 15 kg ingot.
Although the material of bolt changed, the rate of loose torque and the pre-tighting torque still correspond to the rule of regular threaded connections.
Guo: Journal of Wuhan University of Tech.
Wang: Materials for Mechanical Engineering Vol. 32 (2008), p. 71 [8] B.

For metal materials, any nonlinearity in loading and unloading stress-strain curves can be referred to as anelasticity or pseudoelasticity [5].
The variation of unloading elastic modulus has an important influence on the springback behavior of materials.
Discussion The cycle tensile test is an effective method of studying anelasticity of materials.
Residual stress of materials increases with the increment of pre-strain and influences the normal elastic recovery, further resulting in the decrement of elastic modulus.
Acknowledgements The work was financially supported by the National Natural Science Foundation of China (No. 50834008).

Constitutive Relationship of Materials Applying the method of non-uniform volume moving heat source to calculate the temperature distribution of primary shear zone in orthogonal high speed cutting, the shear stress τ(z) (or τ(z ) ) of every plane in primary shear zone must be known.
The Johnson-Cook model has enjoyed much success because of its simplicity and the availability of parameters of various materials of interest, so it was used in this paper.
The temperature distribution of the primary shear zone in orthogonal high speed cutting for different materials can be calculated only by changing the materials parameters, including the constitutive parameters and thermo-physical parameters.
Acknowledgements This work is supported by China National Science Foundation (50775018).
Liu: Journal of Dalian University of Technology Vol. 32(4) (1992), p.423 (Chinese) [6]Y.

Infrastruc- tural construction engineering, traffic facilities construction especially highway engineering construction, are energetically impelling for stimulating interior demands, so some new material is in urgent need to terminate further damages.
Lightweight (Sintered) aggregate (LWA) should be the ideal material for highway paving engineering, because of the multiplicity of its raw materials and the benefit of converting wastes into useful materials.
Materials and test program Aggregates and epoxy bitumen binder The epoxy asphalt binder was components epoxy bitumen 2910 .The basalt aggregate and limestone filler chosen to produce LEAM were offered by Jurong City Maodi Industry Co.
Evaluation of use of synthetic lightweight aggregate in hot-mix asphalt[C].Transportation Research Board National Research Center, 2004 [2] Der-Hsien Shen,Chia-Ming Wu,Jia-Chong Du.Perfomance evaluation of porous asphalt with granulated synthetic lightweight aggregate[J].Construction and Building Materials,2007 [3] M.Losa , P.Leandri ,R.Bacci.Mechanical and Perfomance-related Properties of Asphalt Mixes Containing Expanded Clay Aggregate[C].In:TRB 2008 Annual Meeting CD-ROM [4]Qihua Liu, Cuibin Li, Chuanmei Zhang, etc..
Journal of Guangzhou University (Nature Science Edition), Vol.6, No.3, 2007 (In Chinese) [5] Wei Huang.

Thus, there is an urgent need for the development of biodegradable and biocompatible photoluminescent materials.
Experimental Materials.
Then, the materials were washed with distilled water and then vacuum-filtered.
A TEM, HITACHI model Mic H-7650 was employed to investigate the fine nanostructure of synthesized materials.
Journal of Nanoscience.

Test Material and Procedure Creep internal pressure tests (bursts tests) were carried out on a specimens prepared from a superheater tube ø 44 x 6.3 mm made of HR3C steel and circumferentially welded using the TIG (141) method and Inconel 617 (2.4663) consumables.
The analysis of the extent of cavitation was carried out on the specimen B along the circumference of the tube at different depths below the outer surface in the area of maximum damage, and then also in the axial direction at distances of 0, 1, 3, 5 and 10 mm from the fusion line into the base material of this tube.
Journal of Achievements of Materials and Manufacturing Engineering, 57 (2013) 68-75
Science and Technology of Welding and Joining, 19 (2014) 271-294
Materials Performance and Characterization. 11 (2022) 368-384

However, researchers had different viewpoints about the trend of cutting temperature, which was possibly related with the selection of cutting parameters, tool and machined material.
The work piece material and the machine tool were same as in the tool wear experiment.
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