Professional Polymer Technology
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Shoes are essential in our lives, but also our travel p […]
Shoes are essential in our lives, but also our travel protection, and in the production of shoes, the importance of shoe adhesive is very large, and the quality of shoes, the adhesive is also a major factor, the following To tell you about the common use of adhesive for the preparation of shoes, I hope to help you.
The natural rubber polymer is grafted at 60 to 70 ° C to form a solution binder, and part of the methyl ethyl ketone can be added to increase the adhesion to the artificial leather. After this adhesive is applied, The soles of the vulcanization process together with heat curing. First, chloroprene rubber, zinc oxide, magnesium oxide, silica, mixing, adding toluene and stirring dissolved, then add the rest of the recipe and mix thoroughly to make chloroprene rubber adhesive. This adhesive can be used directly for the bonding of artificial leather shoes.
The chloroprene rubber was dissolved in toluene, then methyl methacrylate was added, and benzoyl peroxide was grafted and polymerized at 70 ° C for 6 to 8 hours. Then, cyclohexanone, phenolic resin and oxy indene resin were added and mixed. This adhesive can also be bonded with leather shoes. The better binder is the chloroprene rubber dissolved in toluene, the benzoyl peroxide dissolved in methyl methacrylate and vinyl acetate together and mix thoroughly. Added to the solution, at 60 ~ 70 ℃ reaction 4 to 6 hours, that is, the required adhesive. For the bonding of artificial leather, will join the appropriate amount of methyl ethyl ketone, cyclohexanone adhesive applied to the side of the upper, better bonding effect.
PUR adhesive is used for general leather shoes, leather leather shoes bonding. And can be used for the bonding of leather shoes and polyurethane rubber base. The bonding process is in the treatment of adhesive parts coated with adhesive, at room temperature after 15 to 20 minutes after drying. And heated with an infrared lamp (about 70 to 80 ° C) for 3 to 4 minutes. Then press the press, with 5 kg / cm 2 pressure pressure 1 minute to complete the bonding.