The hottest nano silica used in textile finishing
2022-08-26- Detail
Nano silica is used as textile finishing agent
the finishing solution is prepared according to the proportion concentration of 2% nano silica (vk-sp30) plus 1% nano titanium dioxide (vk-t25f) for treating fabrics. The research work on the heating up of cloth samples under the irradiation of infrared lamp was supported by the National Natural Science Foundation of China, and the temperature reduction of cloth samples after the irradiation of infrared lamp was tested, and compared with the fabric treated with 3% finishing solution containing silica. The fabric treated with the mixture of nano silica (vk-sp30) and nano titanium dioxide (vk-t25f), The temperature rise under the irradiation of infrared lamp and the temperature drop after stopping the irradiation are similar to the fabrics treated with silica one component finishing agent. However, the highest temperature reached by the former in the process of heating up and the lowest temperature of the cloth sample after cooling The final balance temperature of accessories such as collets without clearance is slightly higher than the latter. This shows that the heat storage and heat preservation effect of fabrics treated with mixed nano materials is better, because the risk of establishing a recycled plastic particle factory is less than that of fabrics treated with one component silica finishing agent. The proportion and optimal content of nano material mixture still need to be further studied
the finishing agent containing nano silica powder (vk-sp30) can be prepared by adding suitable dispersants (such as dispersant WS) and adhesives. The finishing agent can be treated on cotton fabric by conventional soaking rolling drying process. The treated cotton fabric has good infrared absorption performance and achieves the effect of heat storage and warmth preservation. The infrared absorption property of the fabric treated with self-made silica finishing agent increases with the increase of the concentration of silica (vk-sp30), but it does not increase at the same time when the concentration reaches 4%. In addition, the baking temperature and the type of nano particles will affect the infrared absorption performance of the finished fabric. (end)
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