Acid-resistant flame-retardant yarn and acid-resistant textile product and clothing prepared from acid-resistant flame-retardant yarn
A yarn and acid-resistant technology, which is applied in the fields of flame-retardant yarns, textiles and clothing, can solve the problems of difficulty in meeting the needs of clothing, poor flame-retardant performance, and inability to resist the attack of acidic substances, and achieve good chemical (acid) resistance Corrosive performance, short reaction time, improved comfort and stainability effects
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Embodiment 1
[0028] A preparation method of an acid-resistant flame-retardant yarn, the steps are as follows:
[0029] (1) prepare modified polyphenylene sulfide;
[0030] (1.1) 400kg denier is 1.5 denier, and the fiber state polyphenylene sulfide that length is 51mm is immersed in the aqueous solution of potassium permanganate of 1000kg0.2wt%;
[0031] (1.2) continuously feed ozone in the system of step (1.1), and fully mix, adopt the system of the high-energy electron beam irradiation step (1.1) that energy is 10Mev to carry out grafting reaction to its weight gain 26wt% simultaneously, the flow rate of ozone It is 800kg / min.
[0032] (1.3) Wash and dry after taking out the reaction product to obtain modified polyphenylene sulfide;
[0033] The glass transition temperature of the prepared modified polyphenylene sulfide is 430°C, the LOI is 38%, and no molten droplets are produced during combustion, and the molar ratio of oxygen atoms to sulfur atoms in the modified polyphenylene sulfid...
Embodiment 2
[0039] A preparation method of an acid-resistant flame-retardant yarn, the steps are as follows:
[0040] The LOI is 30% fiber 1.5 denier, the length is 51mm flame-retardant acrylic fiber and the modified polyphenylene sulfide fiber prepared by embodiment 1 is mixed, adopts compact spinning method to make acid-resistant flame-retardant 30 Nem Combustion yarn, wherein the content of modified polyphenylene sulfide fiber is 90wt%.
[0041] The prepared acid-resistant flame-retardant yarn has a tensile strength retention rate of 95% after soaking in a solution with a temperature of 80° C. and a pH of 2.5 for 2 hours. The flame retardant LOI of the flame retardant yarn is 36%.
[0042] The prepared acid-resistant and flame-retardant yarn is knitted by a circular machine to obtain an acid-resistant and flame-resistant knitted textile, and the acid-resistant and flame-resistant knitted textile is processed to obtain an acid-resistant and flame-resistant knitted garment.
Embodiment 3
[0044] A preparation method of an acid-resistant flame-retardant yarn, the steps are as follows:
[0045] After mixing the flame-retardant vinylon fiber with a denier of 1.5 denier and a length of 51 mm with an LOI of 29% and the modified polyphenylene sulfide fiber obtained in Example 1, the acid-resistant and flame-retardant 40-inch fiberglass fiber was prepared by the siro spinning method. Combustion yarn, wherein the content of modified polyphenylene sulfide fiber is 50wt%.
[0046] The prepared acid-resistant flame-retardant yarn has a tensile strength retention rate of 85% after soaking in a solution with a temperature of 80° C. and a pH of 2 for 2 hours. The flame retardant LOI of the flame retardant yarn is 33%.
[0047] The prepared acid-resistant and flame-retardant yarn is woven by a knitting machine to obtain an acid-resistant and flame-retardant warp-knitted textile, and the acid-resistant and flame-retardant textile is processed to obtain an acid-resistant and f...
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