مروری بر کاربردهای صنعتی رزورسینول-فرمالدهید : از چسبهای سردپخت تایر تا پوششهای ضدخوردگی و چسبهای مقاوم
محورهای موضوعی : پليمرها و نانوفناوری
1 - کارشناسی ارشد مهندسی شیمی دانشگاه باهنر کرمان
کلید واژه: رزورسینول-فرمالدهید, چسب, تایر, پوشش ضدخوردگی, آئروژل,
چکیده مقاله :
رزین رزورسینول-فرمالدهید (RF) به دلیل واکنشپذیری بالا، پخت در دمای محیط و چسبندگی خوب، نقش محوری در صنایع گوناگون دارد. این مقاله مروری، پیشرفتهای اخیر در کاربردهای صنعتی RF را بررسی میکند. در صنعت تایر، سیستم چسب RFL همچنان استاندارد است، اما جایگزینهای غیرسمی مانند رزینهای آرامینولیک تا 8/30 درصد بهبود چسبندگی را نشان دادهاند. در صنعت چوب، چسبهای تانن-رزورسینول-فرمالدهید (TRF) در ساخت الوارهای متقاطع-لمینت عملکرد مکانیکی مناسب برای کاربردهای سازهای دارند. پوششهای کامپوزیتی اپوکسی/RF، مقاومت به خوردگی را تا بیش از دو مرتبه بزرگی نسبت به اپوکسی خالص افزایش میدهند. همچنین نانوکرههای توخالی مزوپور RF با بارگذاری مهارکنندههای خوردگی، محافظت هوشمندی را فراهم میکنند. در حوزه مواد پیشرفته، آئروژلها و کربن آئروژلهای حاصل از RF با سطح ویژه تا ۳۶۰۰ متر مربع بر گرم و رسانندگی حرارتی تا 023/0 وات بر متر-کلوین، کاربردهای گسترده در عایقهای حرارتی، ذخیرهسازی هیدروژن و ابرخازنها یافتهاند. با وجود چالشهای زیستمحیطی ناشی از سمیت مواد اولیه، نرخ رشد مرکب سالانه بازار RF حدود ۴ تا 5/7 درصد پیشبینی میشود که ناشی از تقاضا در خودروسازی و ساختمان است. این مرور نشان میدهد که RF با وجود رقابت جایگزینهای سبز، به دلیل خواص منحصربهفرد خود همچنان یک ماده مهم باقی میماند.
Resorcinol-Formaldehyde (RF) Resin plays a pivotal role in various industries due to its high reactivity, ambient-temperature curing, and excellent adhesion. This review article examines recent advances in the industrial applications of RF. In the tire industry, the RFL adhesive system remains the standard, but non-toxic alternatives such as aminoresin-based resins have shown up to a 30.8% improvement in adhesion. In the wood industry, tannin-resorcinol-formaldehyde (TRF) adhesives exhibit suitable mechanical performance for structural applications in cross-laminated timber manufacturing. Epoxy/RF composite coatings increase corrosion resistance by more than two orders of magnitude compared to pure epoxy. Furthermore, mesoporous hollow RF nanospheres loaded with corrosion inhibitors provide smart protection. In the field of advanced materials, RF-derived aerogels and carbon aerogels, with specific surface areas of up to 3600 m²/g and thermal conductivities as low as 0.023 W/m·K, have found widespread applications in thermal insulation, hydrogen storage, and supercapacitors. Despite environmental challenges due to the toxicity of the raw materials, the compound annual growth rate of the RF market is projected to be around 4–7.5%, driven by demand in the automotive and construction sectors. This review demonstrates that despite competition from green alternatives, RF remains an important material due to its unique properties.
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