What do liquid and powder systems use to gather energy from heat?

In liquid and powder systems, thermal initiators are crucial because they activate the polymerization process in response to heat. When the liquid and powder components are mixed, the thermal initiators absorb heat from the environment, which causes them to break down and release free radicals. These free radicals then initiate the reaction that leads to hardening or curing of the product.

Thermal initiators are essential for ensuring that the curing process occurs effectively and efficiently at the desired temperature, allowing for the products to achieve the necessary strength and durability. This is particularly important in manicure practices, where the finish must withstand use while providing an aesthetic appearance.

Other options, while related to chemical processes, do not specifically refer to the mechanisms involved in this particular system. Photoinitiators are primarily used in light-curing systems, and chemical catalysts generally refer to substances that speed up reactions without being consumed but are not used in this heat-driven context. Oxidizers are agents that promote combustion or oxidation and do not play a role in the thermal activation of the system in question. Thus, thermal initiators are the appropriate answer for their specific role in absorbing heat to initiate the curing process.