Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of carbon graphite material soaking special resin and preparation method thereof, comparable original single resol strengthens alkali resistance and temperature tolerance, former resol contained low temperature volatile matter and moisture have been reduced, over-all properties increases, eliminated owing to resin releases the deperssurization emergency that causes, and can prolong the time of cold zone.
According to technical scheme provided by the invention, carbon graphite material soaking special resin comprises following component: its formula rate is counted by weight:
5~7 parts of bismaleimidess (BMI)
25~27 parts of furane resin (chaff ketone)
(2127) 66~70 parts in resol
Bismaleimides is added isodose dimethylbenzene, and dissolving is stirred and is made mixing solutions at room temperature; Add resol in the above-mentioned mixing solutions and mix and stir, add again after furane resin continue to stir, add and solidify jar and be cured as soaking special resin.
A kind of carbon graphite material soaking special resin preparation method of the present invention, adopt following processing step: its formula rate is counted by weight:
1, with bismaleimides BMI5~7 part adding isodose dimethylbenzene, dissolving is stirred and was made mixing solutions in 1~3 hour at room temperature; Mixing speed: 250~300 rev/mins;
2, close in above-mentioned temperature and add (2127) 66~70 parts in resol in the solution, and mix in stirring tank and stirred 0.5~1.5 hour, temperature remains between 35 ℃~40 ℃; Mixing speed: 250~300 rev/mins;
3, add 25~27 parts of furane resin (chaff ketone) again in step (2) mixing solutions, continue to stir 1~2 hour, temperature remains between 30 ℃~40 ℃;
4, the mixing solutions in the step (3) is added curing jar curing, promptly heat up and do not pressurize, open purging valve; Solidified at normal temperatures 1.5~2.5 hours; When 50~80 ℃ of temperature, solidified 9~11 hours; When 80~100 ℃ of temperature, solidified 5~7 hours; Pressurize when temperature rises to 100 ℃, pressure is: 2.5~3.0MPa, when temperature is 100 ℃~180 ℃, solidified 5~7 hours; Pressure is: 2.5~3.5MPa; Insulation was carbon graphite material soaking special resin in 1.8~2.2 hours when temperature rises to 170~190 ℃.
Solidify Best Times and be 24 hours one jar.Pressure remains to out pressure tank 〉=2.5MPa always.
Compared with the prior art the present invention has the following advantages:
The comparable original single resol of the present invention strengthens alkali resistance and temperature tolerance, former resol contained low temperature volatile matter and moisture have been reduced, over-all properties increases, and has eliminated owing to resin releases the deperssurization emergency that causes, and can prolong the time of cold zone; Can discharge low temperature volatile matter and moisture more than 95%; Traditional resin and technology can only be discharged about 15%.
Embodiment
Following the present invention will be further described in conjunction with the embodiments:
Embodiment one: a kind of carbon graphite material soaking special resin preparation method of the present invention, and adopt following processing step: its formula rate is counted by weight:
1, bismaleimides BMI5 part is added 5 parts of isodose dimethylbenzene, dissolving is stirred and was made mixing solutions in 1 hour at room temperature; Put into band temperature, speed, pressure controlled stirring tank, mixing speed: 250 rev/mins;
2, close in above-mentioned temperature and add (2127) 66 parts in resol in the solution, and mix in stirring tank and stirred 0.5 hour, temperature remains between 35 ℃; Mixing speed: 250 rev/mins;
3, add 25 parts of furane resin (chaff ketone) again in step (2) mixing solutions, continue to stir 1 hour, temperature remains on 30 ℃;
4, the mixing solutions in the step (3) is added 800 liters and solidify a jar curing, promptly heat up and do not pressurize, open purging valve; Solidified at normal temperatures 1.5 hours; When 50 ℃ of temperature, solidified 9 hours; When 80 ℃ of temperature, solidified 3 hours; Pressurize when temperature rises to 100 ℃, pressure is: 2.5MPa, when temperature is 120 ℃, solidified 5 hours; Pressure is: 2.5MPa; Insulation was carbon graphite material soaking special resin in 1.8 hours when temperature rises to 180 ℃.
Embodiment two: a kind of carbon graphite material soaking special resin preparation method of the present invention, and adopt following processing step: its formula rate is counted by weight:
1, bismaleimides BMI6 part is added isodose dimethylbenzene, dissolving is stirred and was made mixing solutions in 2 hours at room temperature; Mixing speed: 270 rev/mins;
2, close in above-mentioned temperature and add (2127) 68 parts in resol in the solution, and mix in stirring tank and stirred 1 hour, temperature remains between 40 ℃; Mixing speed: 270 rev/mins;
3, add 26 parts of furane resin (chaff ketone) again in step (2) mixing solutions, continue to stir 1.5 hours, temperature remains between 38 ℃;
4, the mixing solutions in the step (3) is added curing jar curing, promptly heat up and do not pressurize, open purging valve; Solidified at normal temperatures 2 hours; When 65 ℃ of temperature, solidified 10 hours; When 90 ℃ of temperature, solidified 4 hours; Pressurize when temperature rises to 100 ℃, pressure is: 2.5MPa; When temperature is 150 ℃, solidified 6 hours; Pressure is: 2.5~3.5MPa; Insulation was carbon graphite material soaking special resin in 2 hours when temperature rises to 180 ℃.
Solidify Best Times and be 24 hours one jar.Pressure remains to out pressure tank 〉=2.5MPa always,
Embodiment three: a kind of carbon graphite material soaking special resin preparation method of the present invention, and adopt following processing step: its formula rate is counted by weight:
1, bismaleimides BMI7 part is added isodose dimethylbenzene, dissolving is stirred and was made mixing solutions in 3 hours at room temperature; Mixing speed: 250~300 rev/mins;
2, close in above-mentioned temperature and add (2127) 70 parts in resol in the solution, and mix in stirring tank and stirred 1.5 hours, temperature remains between 43 ℃; Mixing speed: 250~300 rev/mins;
3, add 27 parts of furane resin (chaff ketone) again in step (2) mixing solutions, continue to stir 2 hours, temperature remains between 40 ℃;
4, the mixing solutions in the step (3) is added curing jar curing, promptly heat up and do not pressurize, open purging valve; Solidified at normal temperatures 2.5 hours; When 80 ℃ of temperature, solidified 11 hours; When 100 ℃ of temperature, solidified 5 hours; Pressurize when temperature rises to 100 ℃, pressure is: 2.5MPa; When temperature is 180 ℃, solidified 7 hours; Pressure is: 2.5~3.5MPa; Insulation was carbon graphite material soaking special resin in 2.2 hours when temperature rises to 180 ℃.
Solidify Best Times and be 24 hours one jar.Pressure remains to out pressure tank 〉=2.5MPa always.