The Effect of Hydroxyl on the Superhydrophobicity of Dodecyl Methacrylate (LMA) Coated Fabrics through Simple Dipping-Plasma Crosslinked Method

Abstract

In order to obtain stable superhydrophobicity, suitable hydrophobic treatment agents should be selected according to different material properties. In this paper, cotton and poly(ethylene terephthalate) (PET) fabrics were respectively coated with dodecyl methacrylate (LMA) via argon combined capacitively coupled plasma (CCP), and the surface hydrophobicity and durability of the treated cotton and polyester fabrics are also discussed. An interesting phenomenon happened, whereby the LMA-coated cotton fabric (Cotton-g-LMA) had better water repelling and mechanical durability properties than LMA-coated PET fabric (PET-g-LMA), and LMA-coated hydroxyl-grafted PET fabrics (PET fabrics were successively coated with polyethylene glycol (PEG) and LMA, PET-g-PEG & LMA) had a similar performance to cotton fabrics. The water contact angles of Cotton-g-LMA, PET-g-LMA and PET-g-PEG & LMA were 156°, 153° and 155°, respectively, and after 45 washing cycles or 1000 rubbing cycles, the corresponding water contact angles decreased to 145°, 88°, 134° and 146°, 127° and 143°, respectively. Additionally, thermoplastic polyurethane (TPU) and polyamides-6 (PA6) fabrics all exhibited the same properties as the PET fabric. Therefore, the grafting of hydroxyl can improve the hydrophobic effect of LMA coating and the binding property between LMA and fabrics effectively, without changing the wearing comfort.

Properties of Superhydrophobic and Acid–Alkali-Resistant Polyester Fabric Produced Using Plasma Processing

“…Subsequently, the samples were dried in an oven at 70 • C for 30 min to evaporate the ethanol. The dipped PET samples were then modified using the CCP plasma equipment, and the processing of plasma treatment for superhydrophobic fabrics was the same as in our previous article [18]. The PDMS-modified PET fabric was referred to as PDMS-g-PET fabric, PTFE micro-powder with a particle size of 200 nm or 1 µm, and the PDMS-modified PET fabrics were referred to as PTFE (200 nm)@PDMS-g-PET fabric or PTFE (1 µm)@PDMS-g-PET, respectively.…”

A study of the effect of PEG-1000 phase change materials coating on selected fabric properties

“…The fabric selected was 100% polyester, and the properties evaluated being bursting strength, thickness, air permeability, moisture regain and mass per unit area. While the effect of PEG-1000 coating on the hydrophobicity of knitted fabrics has been explored by researchers, 17 the effect of the same coating on common knitted fabric properties have not been well-researched. Properties such as tensile strength, tearing strength and abrasion resistance (albeit of woven fabric) have already been well-researched as mentioned earlier, and therefore do not form a part of this study.…”