Summary of the invention
The object of the present invention is to provide a kind of production technique of high-performance poly isocyanate glue, its technique is simple, and the polymeric isocyanate glue bonding strength of preparation is high.
For achieving the above object, technical scheme of the present invention is the production technique of a kind of high-performance poly isocyanate glue of design, comprises the steps:
1) successively suction 11-16 parts by weight of toluene vulcabond, 21-32 weight part diphenylmethanediisocyanate, 42-51 weight part chlorobenzene in the first reactor, condenser leads to water coolant, heating, stirring, backflow, at 135 ℃ of insulation 7h, finishes being mixed;
2) successively suction 22-33 weight part chlorobenzene, 7-11 weight part tertiary butyl phenol urea formaldehyde in the second reactor are opened reflux exchanger, and heating is stirred, and keeps 50 ℃, until all dissolve;
3) with in solution suction the first reactor in the second reactor, stir, cooling makes finished product.
Advantage of the present invention and beneficial effect are: a kind of production technique of high-performance poly isocyanate glue is provided, and its technique is simple, and the polymeric isocyanate glue bonding strength of preparation is high.
Embodiment
Below in conjunction with embodiment, the specific embodiment of the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
The technical scheme of implementation of the present invention is:
Embodiment 1
A kind of production technique of high-performance poly isocyanate glue comprises the steps:
1) successively suction 11 parts by weight of toluene vulcabond, 21 weight part diphenylmethanediisocyanates, 42 weight part chlorobenzenes in the first reactor, condenser leads to water coolant, heating, stirring, backflow, at 135 ℃ of insulation 7h, finishes being mixed;
2) successively suction 22 weight part chlorobenzenes, 7 weight part tertiary butyl phenol urea formaldehydes in the second reactor are opened reflux exchanger, and heating is stirred, and keeps 50 ℃, until all dissolve;
3) with in solution suction the first reactor in the second reactor, stir, cooling makes finished product.
Embodiment 2
A kind of production technique of high-performance poly isocyanate glue comprises the steps:
1) successively suction 16 parts by weight of toluene vulcabond, 32 weight part diphenylmethanediisocyanates, 51 weight part chlorobenzenes in the first reactor, condenser leads to water coolant, heating, stirring, backflow, at 135 ℃ of insulation 7h, finishes being mixed;
2) successively suction 33 weight part chlorobenzenes, 11 weight part tertiary butyl phenol urea formaldehydes in the second reactor are opened reflux exchanger, and heating is stirred, and keeps 50 ℃, until all dissolve;
3) with in solution suction the first reactor in the second reactor, stir, cooling makes finished product.
Embodiment 3
A kind of production technique of high-performance poly isocyanate glue comprises the steps:
1) successively suction 13 parts by weight of toluene vulcabond, 25 weight part diphenylmethanediisocyanates, 47 weight part chlorobenzenes in the first reactor, condenser leads to water coolant, heating, stirring, backflow, at 135 ℃ of insulation 7h, finishes being mixed;
2) successively suction 28 weight part chlorobenzenes, 9 weight part tertiary butyl phenol urea formaldehydes in the second reactor are opened reflux exchanger, and heating is stirred, and keeps 50 ℃, until all dissolve;
3) with in solution suction the first reactor in the second reactor, stir, cooling makes finished product.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.