What is in physics, what is the point of softening?
When the material is melted, it turns from solid to liquid at a single temperature known as the melting point. Many materials melt as the temperature rises, but instead it is softer without turning into liquid. For the formulation of the product and quality control, for these materials without tension, a temperature called a softening point can be determined. There are different tests for determining these temperatures that differ according to the material or intended use. Materials that do not melt at one temperature will contain the so -called crystalline structure at low temperatures. As temperatures rise, molecules can begin to move and become more like soft rubber or flexible plastic, rather than strict material. This is the temperature of the glass transition transition, which has been named because the glass changes from the rigid sheet to flexible plastic material at its transition point.
Jakophalt used for roads and roofing is a material that increases with increasing temperature. Manufacturers and manufacturers must know the temperatures whereasphalt will be soft enough to be used in construction. The point softening test will provide the temperatures needed to check the quality and working temperature during the construction.
The Vicat point point softening test uses a needle pressed down on a sample with a specified weight on the needles. The samples are placed in an oil bath and slowly heat up at the specified speeds until the needle grows a certain distance into the test material. The point of softening is the temperature where the needle penetration reaches the specified distance.
Another type of softening test is the test of rings and balls. The Kalk with a known weight is placed on a sample that is heated at a specified speed. The temperature of the softening is achieved when everyone has a depressive distance to the sample.
Some adhesives called Hot-Melts are heated in the delivery gun to the point where they flow and can be used. These products do not work well like liquids so warm upThe softening temperature can create a weaker adhesive. The forms will use testing tests to determine the optimum manipulation temperature.
Synthetic or artificial polymers may have a wider range of softening temperatures due to various molecular chains available for forms. The library polymer may have a high point of softening due to the solid structure provided by the library of chemical ties. Polymers may contain ingredients that allow them to flow at lower temperatures, which can be useful for injection or adhesive applications.