A kind of glass fiber reinforced polyester composite filament and preparation method thereof
A glass fiber and composite filament technology, applied in the field of chemical fiber manufacturing, can solve the problems of not fully reflecting the superiority of glass fiber and polyester, reducing product strength and other physical properties, and dispersing plied filaments, and achieves small batch production. The effect of lightening and easy specification switching
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Embodiment 1
[0040] A preparation method of glass fiber reinforced polyester composite filament, specifically comprising the following steps:
[0041] 1) Pretreatment of glass fiber: first, pretreat the glass fiber with an aqueous surfactant solution with a pH of 6.5, and the mass percentage concentration of the aqueous surfactant solution is 0.2%; then use a coupling agent for secondary treatment of the glass fiber , and dried at 90°C; the surfactant is composed of the following components in parts by weight: 15 parts of tridecyl dihydrogen phosphate, 5 parts of fatty acid diethanolamide and tetradecyl dimethyl benzyl 2 parts of ammonium chloride; the coupling agent is a zirconium coupling agent, which is tetra-n-propyl zirconate. The fineness of the glass fiber is 1000dtex, and the polyester is POY.
[0042] 2) Plying: The pretreated glass fiber and polyester are drawn into the filaments from different feeding rollers, and then plied into ply yarns at the entrance of the first hot box, ...
Embodiment 2
[0048] A preparation method of glass fiber reinforced polyester composite filament, specifically comprising the following steps:
[0049] 1) Pretreatment of glass fiber: firstly, glass fiber is pretreated with a surfactant aqueous solution with a pH of 5.5, and the concentration of the surfactant aqueous solution is 0.3% by mass; then, the glass fiber is treated twice with a coupling agent , and dried at 100°C; the surfactant is composed of the following components in parts by weight: 10 parts of tridecyl dihydrogen phosphate, 8 parts of fatty acid diethanolamide and tetradecyl dimethyl benzyl 3 parts of ammonium chloride; the coupling agent is a zirconium coupling agent, which is tetra-n-propyl zirconate. The fineness of the glass fiber is 200dtex, and the polyester is POY.
[0050] 2) Plying: The pretreated glass fiber and polyester are drawn into the filaments from different feeding rollers, and then plied into ply yarns at the entrance of the first hot box, and the ply ya...
Embodiment 3
[0056] A preparation method of glass fiber reinforced polyester composite filament, specifically comprising the following steps:
[0057] 1) Pretreatment of glass fiber: first, pretreat the glass fiber with an aqueous surfactant solution with a pH of 6, and the mass percentage concentration of the aqueous surfactant solution is 0.5%; then use a coupling agent for secondary treatment of the glass fiber , and dried at 80°C; the surfactant is composed of the following components in parts by weight: 12 parts of tridecyl dihydrogen phosphate, 10 parts of fatty acid diethanolamide and tetradecyl dimethyl benzyl 1 part of ammonium chloride; the coupling agent is a zirconium coupling agent, which is tetra-n-propyl zirconate. The fineness of the glass fiber is 800dtex, and the polyester is POY.
[0058] 2) Plying: The pretreated glass fiber and polyester are drawn into the filaments from different feeding rollers, and then plied into ply yarns at the entrance of the first hot box, and...
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