PET (polyethylene glycol terephthalate) fiber/teflon fiber composite sound absorbing cotton and preparation method of PET fiber/teflon fiber composite sound absorbing cotton
A polytetrafluoroethylene and fiber composite technology, applied in the field of non-woven fabrics, can solve problems such as insufficient adhesion of products, no flame-retardant treatment, and poor tensile strength, so as to improve sound absorption effect, good adhesion of products, and production high efficiency effect
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[0016] A PET fiber / polytetrafluoroethylene fiber composite sound-absorbing cotton, made of the following raw materials in parts by weight: 78 parts of PET fiber, 42 parts of polytetrafluoroethylene fiber, 14 parts of emulsifier OP-30, 8 parts of Pingpingjia O-20 85 parts of PP, 35 parts of HIPS, 16 parts of activated clay, 15 parts of modified diatomaceous earth, 2.5 parts of stearic acid, 6 parts of dioctyl adipate, 5 parts of toluene diphenyl phosphate, 2 parts of liquid paraffin , 1.5 parts of 3-aminopropyltrimethoxysilane, 2 parts of calcium stearate, 1.5 parts of barium stearate, 0.8 parts of antioxidant RD, and 1.5 parts of antioxidant DLTP.
[0017] Wherein, the modified diatomite is prepared by the following method: put the dried diatomite into a ball mill, add 28% graphite, 2% vermiculite powder, 3% sepiolite powder, 4% light Calcium carbonate, 2.5% water glass and 4% polyvinyl alcohol, ball milled for 10 hours, calcined at 1150°C for 2 hours, crushed and gro...
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