Preparation method for air-permeable and antibacterial silicone rubber material and application thereof in home textiles

A preparation method for an air-permeable and antibacterial silicone rubber material, wherein the silicone rubber material consists of the following components in parts by weight:

• 50-70 parts by weight of a double quaternary ammonium salt-grafted silicone rubber, 30-50 parts by weight of a polyurethane elastomer, 1-2 parts by weight of a compatibilizer, and 0.5-1 parts by weight of a vulcanizing agent;
• and
• wherein the air-permeable and antibacterial silicone rubber material is prepared by the following steps:
• (1) placing an activated silicone rubber, a double quaternary ammonium salt-type benzoic acid and a p-toluenesulfonic acid catalyst in a first reaction kettle filled with a toluene solvent, reacting the activated silicone rubber with the double quaternary ammonium salt-type benzoic acid at 70-90° C. for 5-10 h to obtain a first reaction product, washing the first reaction product with deionized water, and drying the first reaction product to obtain the double quaternary ammonium salt-grafted silicone rubber;
• and
• (2) at 180-200° C., placing the double quaternary ammonium salt-grafted silicone rubber, the polyurethane elastomer, the compatibilizer and the vulcanizing agent in a torque rheometer with a rotating speed of 50-80 r/min to form a mixture, blending the mixture for 10-20 min, cooling the blended mixture to room temperature, and performing vulcanization and compression molding on the cooled mixture in a flat vulcanizing machine with a pressure of 10-12 MPa to obtain the air-permeable and antibacterial silicone rubber material.