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09
2022
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06
What are the factors that affect the elongation at break of TPE?
作者：
The elongation at break of TPE material refers to the concept of tensile strength and tensile strength, usually expressed in Arabic numerals. For example, if a material has an original length of 100 mm, it is stretched by an external force, and when it is stretched to 300 mm, it breaks, then the elongation of the material is 300%. So what are the factors that affect the elongation at break of TPE?
The factors that affect the elongation at break of TPE are as follows:
Stone powder filling: On the premise of other factors being the same, the larger the stone powder filling ratio, the smaller the elongation at break.
Substrate: Under the premise of other factors being the same, the elongation at break of SEBS substrate TPE is greater than that of SBS substrate TPE. Among SEBS substrates, SEBS substrates with large butadiene content have higher elongation at break than butadiene content. Small SEBS substrate.
Plastic ratio: On the premise that other factors are the same, the larger the plastic ratio, the smaller the elongation at break of the material.
Oil-filling ratio: On the premise of other factors being the same, the larger the oil-filling ratio, the greater the elongation at break of the material.
The TPE material formulation system has a large variation space, which determines that the TPE material has a large elongation at break space. The elongation at break of TPE materials with different hardness and physical properties is generally around 200-1600%.
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