A kind of nitrile gloves and preparation method thereof
A technology of nitrile gloves and carboxylated nitrile latex, which can be used in gloves, protective clothing, clothing, etc., and can solve the problems of poor flexibility of nitrile gloves
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[0022] The invention provides a kind of preparation method of nitrile gloves, comprises the following steps:
[0023] A) 90 to 110 parts by weight of carboxylated nitrile latex, 1 to 50 parts by weight of PVC-VE emulsion, 0.5 to 3 parts by weight of KOH, 0.5 to 3 parts by weight of ZnO, 0.5 to 4 parts by weight of sulfur, 0.3 ~3 parts by weight of accelerator, 0.1~1.5 parts by weight of surfactant and 80~100 parts by weight of deionized water are mixed to obtain a slurry;
[0024] B) Immerse the glove model in the coagulant solution, take it out and dry it, then immerse it in the slurry, take it out and dry it, and vulcanize to obtain the nitrile glove.
[0025] The raw materials used in the preparation of nitrile gloves in the present invention include carboxylated nitrile latex. The parts by weight of the carboxylated nitrile latex are 90-110 parts. In some embodiments of the present invention, the carboxylated nitrile latex has 90 parts, 95 parts or 110 parts by weight. ...
Embodiment 1
[0062] With the carboxyl nitrile latex of 90 weight parts, the PVC-VE emulsion of 5 weight parts, the KOH of 1 weight part, the ZnO of 0.5 weight part, the sulfur of 0.5 weight part, the accelerator BZ of 0.3 weight part, the ten Sodium dialkylbenzene sulfonate was mixed with 80 parts by weight of deionized water, and stirred for 22 hours to obtain a slurry.
[0063] Pretreatment of the glove model: the glove model was first cleaned in a nitric acid solution with a pH value of 3, and then washed in an aqueous solution of sodium hydroxide with a pH value of 12, rinsed, and dried in an oven at 75°C.
[0064] Prepare the coagulant solution: add 12 parts by weight of calcium nitrate, 1.5 parts by weight of a release agent and 86.5 parts by weight of deionized water into the batching bucket, and stir evenly to obtain a coagulant solution.
[0065] Immerse the pretreated glove model in the coagulant solution at 60°C for 60s, drip, dry, then dip in the slurry at 15°C for 30s, drip, d...
Embodiment 2
[0071] The carboxyl nitrile latex of 95 parts by weight, the PVC-VE emulsion of 20 parts by weight, the KOH of 2 parts by weight, the ZnO of 1 part by weight, the sulfur of 2 parts by weight, the accelerator BZ of 1.5 parts by weight, the laurel of 0.8 parts by weight Sodium alcohol sulfate and 90 parts by weight of deionized water were mixed, and after stirring for 23 hours, a slurry was obtained.
[0072] Pretreatment of the glove model: the glove model was first cleaned in a nitric acid solution with a pH value of 3, and then washed in an aqueous solution of sodium hydroxide with a pH value of 12, rinsed, and dried in an oven at 75°C.
[0073] Prepare the coagulant solution: add 12 parts by weight of calcium nitrate, 1.5 parts by weight of a release agent and 86.5 parts by weight of deionized water into the batching bucket, and stir evenly to obtain a coagulant solution.
[0074] Immerse the pretreated glove model in the coagulant solution at 65°C for 35s, drop it, and dry ...
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