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Influence of Alkali Treatment on Properties of Casein Grafted Acrylonitrile Fibers GAO Jing College of Textiles, Donghua University, Shanghai 201620, China Engineering Research Center of Technical Textile, Ministry of Education, Donghua University, Shanghai 201620, China gao2001jing@dhu.edu.cn Key words: Casein grafted acrylonitrile fiber; alkali treatment; Chemical component; mechanical properties Abstract.
At the same time, the mechanical properties of the fibers treated by alkali at various pH values were tested, and the intrinsic and extrinsic factors affecting fibers mechanical properties were analyzed.
Fibers mechanic properties are measured by the LLY-06 type of single fiber electronic tensile tester of Laizhou electronic instrument Ltd., (Pre-tension 100mg，down speed 10mm/min，gauge 10mm).
The alkali affected little at the moment.
(a) (b) (c) (d) Fig.1 Fibers mechanical properties after alkali treatment.

Existing factors that affect the mechanical properties of natural fiber composites were investigated and identified.
By knowing these factors, a possibility and potentiality in implementing the natural acacia wood reinforced material with hybrid polymer were discussed.
Factor Effecting Mechanical Properties of Existing Reinforced Polymer Composites Reinforced polymer composites can be divided into three parts; non-degradable, partially-degradable, and completely-degradable reinforced composites.
However, there are certain factors that affecting the mechanical properties of natural fiber composites [13], such as the fiber, matrix, interface strength (treatment), fiber dispersion, fiber orientation, manufacturing, and porosity.
Bhattacharjee, Physical, mechanical and seasoning properties of A. mangium and A. auriculiformis.

When the FIBC was affected by environment factors synthetically under using, such as light, heat and air etc, it would come into degradation and its mechanical properties reduced.
The mechanical properties of polypropylene FIBC base material are important factors that ensure its safe storage and transportation.
When the FIBC is affected by environment factors synthetically under using, such as light, heat and air etc, it would come into degradation and its mechanical properties reduced.
Fabric mechanical properties.
Mechanical properties change.

Meanwhile the physical-mechanical properties of original loess also are significantly influenced by the acid rain.
It is necessary to explore the changes of physical-mechanical properties of loess contaminated by acid.
However, there are few studies on the physical-mechanical properties of loess polluted by acid.
The reasons are as follows: the main influencing factors of loess compaction density is the material composition and structure.
Liquid limit and plastic limit are two important parameters affecting soil properties, which reflect the size composition and material components of soil, and it is closely connected with the strength.

The significance sequences of technology parameters affecting SCI are factor A, E, C ,B and D.
Thereby, the paper presents the relational model of the main factors affecting SCI and analyzes experiments results via orthogonal design of experiment, it will offer technical supports for surface quality control of metal forming.
Based on the sum of mean deviation, significance sequences affecting SCI is E>A>C>B>D.
The results show that significance sequences of technology parameters affecting SCI are factor A, E, C, B and D.
Final results show the superior parameter affecting SCI is , the inferior is E(holdblanker force), yet factor E can be neglected according to forming conditions.

In this chapter, the thermomechanical properties of polymer-CNT nanocomposites and the various factors affecting the thermomechanical properties are discussed.
Enhancing the permeabilit [19,20] mechanical [21] and thermal properties [22] etc.
Properties Range Mechanical MWCNTs have a tensile strength of11-200 GPa and the elastic properties are independent of chirality, tube radius and number of layers [28].
A correlation was observed between the dispersion and the mechanical properties.
Marchenko, Thermo-mechanical Properties of Materials. 

The volume fraction of matrix increases sharply with the increase in rare metal oxide impurity, which adversely affects the mechanical properties of tungsten heavy alloys.
Important microstructural features such as W-W contiguity, tungsten particle size, matrix volume fraction affect the mechanical properties [4-6].
The purpose of this investigation was to examine the effect of sintering conditions, microstructural factors that effect mechanical properties and to investigate the effect of oxide impurity on the microstructure and mechanical properties of WHA.
This is explained in terms of microstructural factors such as tungsten grain size, matrix volume fraction [5].
The addition of small amount of impurity to WHA largely affects the microstructural parameters and the hence mechanical properties.

Aiming at the mechanical property abnormality of a certain cylinder test piece for aerospace application, scanning electron microscope and metallographic microscope were used to observe and analyze the fracture and weld structure of test pieces under tensile test, and the reason of property abnormality was determined.
When texture structure exists inside aluminum alloy, mechanical property along the texture direction is better than that of transverse direction [2]-[3].
The direction of the fracture in the arc zonal fracture region is consistent with that of transverse properties fracture of the texture.
There are mainly two factors leading to the formation of the metal texture structure.
Microstructures and mechanical properties of friction stir welded joints of Aluminium alloy thick plate with different welding states [J].

Some of the properties affected by this modification are those related to mechanical behaviour.
In these kinds of parts a very tight safety factor is used, that’s why to know exactly material properties is very important during its design.
Recycled material has lower mechanical and aesthetic properties.
- The variation of mechanical properties of the material used in this type of part is important for the functionality of containers and they are designed with adjusted safety factors
Conclusions The addition of different percentages of recycled material to raw material for injection moulding processes implies a change in the mechanical behaviour of the material, affecting the safety factor in stress.

Effect of Corrosion on Mechanical Properties of Reinforcing Bar HPB235 Ying Wang1, Ping Li1, a 1Department of Civil Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China aeappol@163.com Key Words: Reinforcing Bar, Corrosion behavior, Corrosion rate, Mechanical properties Abstract: The corrosion behavior of reinforcing bar HPB235 in simulated concrete pore solution (3.5 wt.% NaCl solution) was investigated, and the tensile mechanical properties before and after corrosion were tested.
The research about the corrosion of reinforcing bar and its effect on the mechanical properties of reinforcing bar are increasing [7-10].
The tensile mechanical properties, including yield strength, tensile strength and elongation, are tested by a hydraulic pressure universal testing machine.
These will affect the strength properties of reinforcing bar.
Maybe the effect of stress concentration on each strength property is not familiar, or there can be other affecting factors.