Instantaneous adhesive and preparation method thereof
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An adhesive, instant drying technology, applied in the direction of adhesives, adhesive types, graft polymer adhesives, etc., can solve the problems of short shelf life, poor durability, high brittleness, etc., to achieve short gel time, Good temperature and water resistance
Inactive Publication Date: 2014-04-02
NANTONG REPAIR AIR CHEM BIOENG
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Description
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Problems solved by technology
The disadvantage is that the reaction speed is too fast, the water resistance is poor, the brittleness is large, the temperature resistance is low, the storage period is short, and the durability is not good, so the corresponding additives should be added when compounding the glue, and it is mostly used for temporary bonding.
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Embodiment 1
[0014] The instant-drying adhesive described above is prepared according to the following steps:
[0015] (1) Weigh each component according to parts by weight;
[0016] (2) Add ethyl 2-cyanoacrylate, methyl methacrylate, ethylene carbonate, hydroxypropyl cellulose acetate, and sulfur dioxide into the reaction kettle, mix well, and heat at 70°C for 1 hour;
[0017] (3) Add hydroquinone and silicon dioxide to the reaction product of step (2) and distill under reduced pressure at 170°C to obtain an instant adhesive.
[0018] Example 2
Embodiment 2
[0020] The instant-drying adhesive described above is prepared according to the following steps:
[0021] (1) Weigh each component according to parts by weight;
[0022] (2) Add ethyl 2-cyanoacrylate, methyl methacrylate, ethylene carbonate, hydroxypropyl cellulose acetate, and sulfur dioxide into the reaction kettle, mix well, and heat at 73°C for 1.5 hours;
[0023] (3) Add hydroquinone and silicon dioxide to the reaction product of step (2) and distill under reduced pressure at 175°C to obtain an instant adhesive.
[0024] Example 3
Embodiment 3
[0026] The instant-drying adhesive described above is prepared according to the following steps:
[0027] (1) Weigh each component according to parts by weight;
[0028] (2) Add ethyl 2-cyanoacrylate, methyl methacrylate, ethylene carbonate, hydroxypropyl cellulose acetate, and sulfur dioxide into the reaction kettle, mix well, and heat at 75°C for 1.5 hours;
[0029] (3) Add hydroquinone and silicon dioxide to the reaction product of step (2) and distill under reduced pressure at 178°C to obtain an instant adhesive.
[0030]
[0031] Example 4
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Abstract
The invention provides an instantaneous adhesive and a preparation method thereof. The instantaneous adhesive comprises the following component in parts by weight: 75-90 parts of 2-ethyl cyanoacrylate, 3-10 parts of methyl methacrylate, 5-10 parts of ethylene carbonate, 2-8 parts of hydroxypropyl cellulose acetate, 0.1-0.5 parts of sulfur dioxide, 0.5-1 part of hydroquinone and 0.1-0.4 parts of silica. The preparation method comprises the following steps: adding 2-ethyl cyanoacrylate, methyl methacrylate, ethylene carbonate, hydroxypropyl cellulose acetate and sulfur dioxide into a reaction kettle, uniformly mixing, heating and reacting for 1-2 hours at the temperature of 70-80 DEG C; adding the hydroquinone and silica into the reaction kettle, and performing reduced pressure distillation at the temperature of 170-180 DEG C. The instantaneous adhesive provided in the invention has the characteristics of short gel time, high temperature resistance and high water resistance and is suitable for popularization.
Description
technical field [0001] The invention belongs to the field of chemical materials, in particular to an instant adhesive and a preparation method thereof. Background technique [0002] The main component of instant adhesive is α-cyanoacrylate adhesive, which is a single-component, low-viscosity, transparent, fast-curing adhesive at room temperature. Also known as instant adhesive. It has a wide bonding surface and has good bonding ability to most materials. It is one of the important room temperature curing adhesives. The disadvantages are that the reaction speed is too fast, the water resistance is poor, the brittleness is high, the temperature resistance is low, the storage period is short, and the durability is not good. Therefore, corresponding additives should be added when compounding the glue, and it is mostly used for temporary bonding. Contents of the invention [0003] In order to overcome the shortcomings of the prior art above, the present invention provides an...
Claims
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Application Information
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