High-performance polymer resin with controllable melt viscosity, and preparation method thereof
A polymer resin and melt viscosity technology, which is applied in the field of petroleum resin products and its preparation, can solve problems such as the inability to meet the resin viscosity requirements, achieve the effect of small fluctuations, ensure stability, and prevent large fluctuations
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[0030] A kind of preparation method of the high-performance polymeric resin with controllable melt viscosity of the present invention, comprises the following steps:
[0031] 1) With carbon five diolefins, monoolefins and styrenes as reaction raw materials, the mass ratio of carbon five diolefins: monoolefins: styrenes: solvent oil is (1~20): (1~15): (0 ~10): (1~15) Weigh the reaction raw materials and solvent oil respectively, and mix them evenly;
[0032] 2) First pump the solvent into the reaction kettle, and then add aluminum trichloride powder or liquid aluminum trichloride with a total mass of 0.6 to 3% of the reaction material as a catalyst;
[0033] 3) After the temperature in the reactor reaches the synthesis temperature of 50-90°C, use a metering pump to add the mixed materials into it by dropwise addition for reaction. The dropwise addition is completed within 0.5-2 hours, and the reaction pressure is controlled to be less than 1Mpa;
[0034] 4) The reaction time i...
Embodiment 1
[0038] 150 g of piperylene (trans-1,3-pentadiene: cis-1,3-pentadiene=1.54), 120 g of isopentene and 50 g of n-pentane were weighed and mixed uniformly. Then first add 100 g of n-pentane in the reactor, and then add 4 g of aluminum trichloride as a catalyst. After the reaction temperature reaches 55°C, use a metering pump to add the mixed materials dropwise, and control the dropwise addition within 30 minutes. After reacting for 1 h, the reaction product was washed 3 times with water. Then the obtained water-washed polymer solution was stripped and filtered under reduced pressure to obtain the final product, which had a softening point of 95°C, a Gardner color number of No. 2.5, and a melt viscosity of 80 cps at 200°C.
Embodiment 2
[0040] Weigh respectively 100g isoprene, 50g piperylene, 150g monoolefin (mass ratio isopentene: cyclopentene: n-pentene=3:1:1), 100g solvent (mass ratio n-pentane: heptane alkane=1:1) mixed evenly, in the reaction ingredients, trans-1,3-pentadiene:cis-1,3-pentadiene=0.12, isoprene:cis-1,3-pentadiene=2.24 . Then first add 100 g of n-pentane into the reactor, and then add 6 g of aluminum trichloride as a catalyst. After the reaction temperature reaches 60°C, use a metering pump to add the mixed materials dropwise, and control the dropwise addition within 60 minutes. After reacting for 0.5 h, the reaction product was washed 5 times with water. Then the resulting water-washed polymer solution was stripped and filtered under reduced pressure to obtain the final product, which had a softening point of 95°C, a Gardner color number of No. 3, and a melt viscosity of 200 cps at 200°C.
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