DOPO接枝功能化阻燃剂的合成及其在涤棉织物表面的应用,Journal of Applied Polymer Science

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DOPO接枝功能化阻燃剂的合成及其在涤棉织物表面的应用
Journal of Applied Polymer Science ( IF 2.7 ) Pub Date : 2023-12-06 , DOI: 10.1002/app.54976
Zhehang Shi ₁ , Fubin Luo ₁ , Hongzhou Li ₁ , Denglong Chen ₂

Affiliation

涤棉（TC）织物因其卓越的柔软性和耐用性而广泛应用于纺织工业。另外，其高可燃性导致很大的安全隐患，燃烧时的熔滴现象尤为严重。9-oxa-10-phospha-9,10-二氢菲10-氧化物（DOPO）及其衍生物经常被大量用作基材中的环保阻燃剂。难以应用于织物表面，且大量添加会导致机械性能下降。因此，有必要设计一种可应用于表面的接枝功能化阻燃剂的策略。本研究报道了一种由 DOPO 和对羟基苯甲醛 (p-HBA) 合成的耐洗阻燃涂料 (DOPO-p)，通过溶解策略制备出重量增长低、阻燃效率高的涂料。与有机溶剂。水洗和干洗测试表明TC织物具有优异的水洗牢度。在极限氧指数（LOI）测试中，成品织物的LOI值达到22.9%。在锥形量热测试中，当涂层重量增长仅为3.3wt％时，成品织物的热释放速率峰值降低了27％，CO ₂释放量降低了29％。

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Synthesis of a graft-functionalized flame retardant based on DOPO and its application on the surface of terylene/cotton fabrics

Terylene/cotton (TC) fabrics are widely used in the textile industry because of their superior softness and durability. In addition, its high combustibility leads to a great safety hazard, and the droplet phenomenon during combustion is particularly serious. 9-oxa-10-phospha-9,10-dihydrophenanthrene 10-oxide (DOPO) and its derivatives are frequently used as eco-friendly flame retardants in large quantities in substrates. It would be difficult to apply to the surface of the fabric, and the addition of large amounts would lead to a decrease in the mechanical properties. Therefore, it is necessary to design a strategy for graft-functionalized flame retardants that can be applied to surfaces. Here, this study reported a washing-fastness flame-retardant coating (DOPO-p) synthesized from DOPO and p-hydroxybenzaldehyde (p-HBA), coatings with a low weight growth and high flame-retardant efficiency are prepared by the strategy of dissolving with organic solvents. Water and dry-cleaning tests showed excellent washing fastness of TC fabrics. In the limiting oxygen index (LOI) test, the finished fabric achieved a LOI value of 22.9%. In the cone calorimetry test, the peak of heat release rate of the finished fabric is decreased by 27% and CO₂ release is reduced by 29% when the coating weight growth was only 3.3 wt%.

更新日期：2023-12-06

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