RTV liquid silicone rubber
RTV(room temperature vulcanization)liquid silicone rubber,refers to this kind of liquid silicone rubber that can be naturally cured under normal temperature (25 ° C) conditions, in other words, it can be cured at normal temperature, and increasing the temperature can of course speed up the curing speed. Room temperature vulcanized liquid silicone rubber can be applied to clothing printing ink, such as T-shirt printing, shoe printing, gloves non-slip layer, rope dipping and so on. This kind of clothing printing ink can add a variety of color powder, make different colors of ink, make clothing printing more colorful, plus this kind of printing ink after curing, soft texture, good elasticity and permeability, liquid silicone rubber as clothing printing ink is widely popular.
The components of RTV
Room temperature vulcanized silicone rubber is mostly two-component according to the packaging method, and the current market RTV is mostly sold according to the following packaging method
|
Component |
A component |
B component |
|
Ingredient |
Vinyl silicone,Catalyst |
Crossing linker,inhibitor |
As long as the above two components do not contact, do not mix, this kind of liquid silicone rubber will not produce chemical reaction, storage cycle at room temperature for several years, which is also the reason why liquid silicone rubber has been widely used. The composition of each component can also be freely adjusted mixing ratio has been more convenient for practical applications, such as the viscosity of vinyl adhesive can be adjusted to facilitate the penetration of silk mesh. The catalyst content can be adjusted to speed up the curing speed. The inhibitor content can be adjusted to extend the curing time (at room temperature 25℃). The operation of liquid silicone rubber is quite flexible, and the actual application can choose the corresponding components of silicone according to the production needs.
The application of RTV
When the room temperature vulcanized silicone rubber is used in the rope dipping head, the AB component silicone is mixed evenly in the container, and then the mixed silicone is diluted with diluent, and then the rope head is soaked in the container containing liquid silicone, and the table is pulled out until the table is dry, and then repeated soaking to achieve the required soaking effect. Room temperature vulcanized silicone rubber should be in the screen printing, the AB component silicone is mixed evenly, and then the silicone is printed on the clothing fabric through the screen plate and the scraper, without baking to cure the silicone, and then repeated printing many times to achieve the printing effect.
