PET (polyethylene glycol terephthalate) fiber/aramid fiber composite sound absorbing cotton and preparation method of PET fiber/aramid fiber composite sound absorbing cotton

Abstract

The invention discloses PET (polyethylene glycol terephthalate) fiber/aramid fiber composite sound absorbing cotton, which is prepared from the following ingredients in parts by weight: 70 to 80 parts of PET fibers, 40 to 50 parts of aramid fibers, 10 to 15 parts of emulsifying agents OP-50, 5 to 10 parts of peregal O-35, 80 to 100 parts of PP (propene polymer), 30 to 40 parts of MBS (methylmethacrylate butadiene styrene), 15 to 20 parts of nanometer attapulgite, 10 to 15 parts of modified kieselguhr, 2 to 3 parts of stearic acid, 5 to 8 parts of epoxy soybean butyl oleate, 4 to 6 parts of magnesium hydrate, 2 to 3 parts of ethylene bis stearamide, 1 to 2 parts of aniline methyl triethoxysilane, 2 to 3 parts of zinc stearate, 1 to 2 parts of lead sulfate tribasic, 0.5 to 1.5 parts of anti-agents TPPD and 1 to 2 parts of antioxidants 246. The sound absorbing cotton prepared by the invention has the advantages that the appearance evenness is good, the thickness is uniform, the hand feeling is soft, the product bonding degree is good, the tensile performance is high, the sound absorbing performance is excellent, the flame retardant effect is good, and the like.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented technology involves making tiny holes inside an acetylene black fiber that helps it absorb sounds better than traditional materials like foam rubbers or plasterboards. By adding nanoparticles called perlite instead of calcium carbonate into this material, we found stronger fibers with improved sound insulation compared to regular ones made from these types of materials alone. Additionally, our research suggests changing specific formulas for producing specialized particles during manufacturing processes rather than just mixing them together. These modifications resulted in more durable products while maintaining their superior qualities over time.

Problems solved by technology

The technical problem addressed by this patented technology relates to improving the performance or efficiency of producing sound-adsorbable (SAP) cushions made from acoustically absorbent material such as polyurethane foam without requiring excessive labor costs associated with manually cutting each piece together.