植酸/三元黏合剂/羽毛角蛋白阻燃机织羊毛织物的制备及其性能

Preparation and properties of flame-retardant woven wool fabric based on phytic acid/ternary binder/feather keratin

摘要:

针对机织羊毛阻燃环保性要求，以生物质植酸（PA）和羽毛角蛋白（FK）为原料，三元黏合剂〔(P(GMA-co-FHBMA)-g-PEGMA〕为交联剂，基于浸轧-焙烘工艺，在机织羊毛织物表面构建了PA/P(GMA-co-FHBMA)-g-PEGMA/FK阻燃涂层。采用FTIR、SEM、极限氧指数（LOI）、TG对阻燃整理前后机织羊毛进行了结构表征和性能测试。结果表明，采用浸轧-焙烘工艺在机织羊毛织物上成功构建PA/P(GMA-co-FHBMA)-g-PEGMA/FK阻燃涂层；与未整理的机织羊毛织物相比，经过PA/P(GMA-co-FHBMA)-g-PEGMA/FK阻燃整理后的机织羊毛织物LOI可达32.5%，损毁长度降至96 mm，续燃和阴燃时间降低，且对织物的断裂强度和手感影响较小；机织羊毛织物的热稳定性能得到提高，形成稳定的炭层；经15次水洗其LOI > 27.0%，表现出较好的耐久性。

Abstract:

In order to meet the requirements of flame retardant and environmental protection of woven wool, using biomass phytic acid (PA) and feather keratin (FK) as raw materials, terpolymer 〔P(GMA-co-FHBMA〕-g-PEGMA) as crosslinking agent, based on the process of dip rolling and baking.PA/P(GMA-co-FHBMA)-g-PEGMA/FK flame retardant coating was constructed on the surface of woven wool fabric. FR-IR, SEM, limiting oxygen index (LOI) and TG were used to characterize and measure the infrared characteristic absorption, surface microstructure, flame retardancy and thermal stability of woven wool before and after flame-retardant finishing. The results showed that PA/P(GMA-co-FHBMA)-g-PEGMA/FK flame retardant coating was successfully constructed on woven wool fabric by the process of dip rolling and baking. Compared with the unfinished woven wool fabric, the LOI value of the woven wool fabric after PA/P(GMA-co-FHBMA)-g-PEGMA/FK flame-retardant finishing can reach 32.5%, the damage length is reduced to 96mm, Both the after-flame time and after-glow time is reduced, and it has little influence on the breaking strength and feel of the fabric. The thermal stability of wool fabric is improved and stable carbon layer is formed. After 15 times of washing, its LOI value is greater than 27.0%, showing good durability.