Plasma Induced DMDAAC Grafted Onto Polypropylene Fabrics And Polyester Fabrics

The Argon low temperature plasma was used to induce grafting of DMDAAC for improving the surface performance and antibacterial ability of polypropylene non-woven fabrics and polyester fabrics. The graft polymerization of DMDAAC was carried out onto the fabrics surface that had been presoaked monomer solution and subsequently treated with low temperature plasma. The degree of grafting was characterized by acid red dye combination amount. The optimum plasma treatment conditions for PP non-woven fabric were found by orthogonal experiments that they were plasma power: 250W, plasma treatment time: 25min, gas pressure: 30Pa; The combination amount of dye to the grafted fabric was 151.4μg·cm-2. For PET fabrics the optimum plasma treatment conditions were plasma power: 250W, plasma treatment time: 15min, gas pressure: 40Pa; The combination amount of dye to the grafted fabric was 116.8μg·cm-2.The elements composition on the grafted fabrics surface, thermal stability and hydrophilicity were characterized by XPS, TG and Moisture Management Tester, respectively. The antibacterial ability was tested by Halo test and AATCC Test Method 100-2004 .The result of XPS showed that there was nitrogen on the surface of the grafted PP non-woven fabrics. Thermal stability of the grafted PP non-woven fabrics was improved greatly. The hydrophilicity of grafted PP non-woven fabrics and PET fabrics were improved greatly, and they had antibacterial ability.In order to make the contrast, the grafting of DMDAAC onto the PP non-woven fabrics was carried out using BPO initiator. According to the weight method, the highest degree of grafting was 14%, but the combination amount of dye was only 87.5μg·cm-2; the effect of hydrophilicity of grafted PP non-woven fabrics was ordinary.