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ecycle ? Carpet typically consists of two layers of backing (mostly polypropylene fabrics), joined by CaCO3 filled SBR (丁苯膠乳橡膠 ),and face fibers (majority being nylon 6 and nylon 6,6) ? Collection : ① Fiber Identification (work) ② Sorting (a portable infrared spectrometer ) ? Fiber Recycling Technologies: ① Size Reduction ② Mechanical Separation of Carpet Components ③ Dissolution/Reprecipitation ? Application:concrete reinforcement fo