What’s the difference between carbon fiber twill and plain?
The most obvious feature of warp and weft knitting is that warp and weft knots are the most. Compared with twill and one-way weaves, the permeability of resin to plain weave is not as good as that of twill weave. Of course, the permeability of resin to plain weave is similar under 10 layers of fabric, so the strength of resin matrix is also similar. However, due to its many interlacing points, plain weave material appears to have high flexural strength, slightly higher tensile strength than twill, high balance, and no stereoscopic twill feeling. This phenomenon becomes more obvious with the increase of fabric layers. Therefore, you will find that when choosing low-thickness carbon fiber products, we will habitually recommend plain surface products. That’s why.
There are uncertainties in the knitting process of fabrics, especially in the quantified standard fabrics, some mechanical properties are half different from the theoretical values. This uncertain factor is especially fatal in some aerospace, UHV and over-fatigue areas. This is why, in the study of fabric mechanics, every scientist will find that his experimental results deviate from the theoretical values, and also do not conform to the previous experimental results. But for many applications, it is necessary to simulate and predict uncertainties because of its high specific strength and stiffness, excellent fatigue resistance, creep resistance, corrosion resistance, high temperature resistance (ceramic matrix composites) and excellent damage tolerance.
Twist weave is characterized by a diagonal line composed of weave points or weft weave points, so the joints are less for plain weave, but the permeability of resin is better than plain weave. Therefore, it can be found that in general, the plain weave type of carbon fibre board has higher tensile strength than twill, while the shear strength is often not as good as twill weave, which is mainly due to resin penetration. Because of the problems of resin penetration, when it comes to different moulding processes, there will be differences, such as the use of twill for hot-pressed products, and twill for resin transfer moulding products. The micro-top structure is also different from each other. He will produce the above problems, permeability, pore, crack, twill volume content, macro-impact product quality is the volume fraction of fiber, micro-impact is the pore and crack.
Therefore, we should not underestimate the carbon fiber tubes as fabric composite materials. Although the application scope is mostly in the low mechanics field, the pursuit of service life is the same, and the micro-impact will directly affect the service life of a product.
Conclusion: If the plain and twill lines of carbon fibre pipes are not used in high pressure, high temperature and high fatigue operation, then the influence of the lines is not great. There are also some characteristics of the environment, such as a friend of Xiaobian who is making sea equipment, the carbon fibre pipes used will undergo changes in acidity and alkalinity in the chemical reaction of the equipment, and the change of acidity and alkali can be said to be paved. Because of the natural enemy of layer structure, it is imperative to use special fabrics to make carbon fiber pipes. Especially for those products with high thickness, the characteristics of plain and twill will be vivid and vivid.
Leave A Comment