Crystal nucleator for polyolefin resins, method for producing crystal nucleator for polyolefin resins, and method for improving fluidity of crystal nucleator for polyolefin resins
A technology of polyolefin resin and crystallization nucleating agent, which is applied in the manufacture of crystallization nucleating agent for polyolefin resin, crystallization nucleating agent for polyolefin resin and the fluidity of crystallization nucleating agent for polyolefin resin It can solve the problems that are difficult to fully meet, and the influence of secondary cohesion, dispersibility, and solubility, etc., and achieve the effects of excellent transparency, increased productivity, and excellent fluidity
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Embodiment 1
[0239] In a 20L Super mixer (manufactured by Kawada Co., Ltd.) equipped with a thermometer, add 1.5 kg of DMDBS (manufactured by Shin Nihon Rika Co., Ltd., GEL ALL DXR, average particle size 6.2 μm), and GMS (Riken Vitamin ( Co., Ltd., melting point: 65°C) 0.5 kg, Irg1010 (melting point: 120°C) 0.3 kg, and stirring at a stirring speed of 300 rpm while heating the jacket with steam. After the powder temperature was raised to 65°C, the supply of steam was stopped, and the mixture was stirred at a stirring speed of 1500 rpm for 5 minutes to obtain a granular crystal nucleating agent for polyolefin resin. The final powder temperature is 96°C. Regarding the obtained crystal nucleating agent for granular polyolefin resin, it was confirmed from the results of a sieving test that the ratio of the residue on a sieve with a mesh of 600 μm to the total weight was 30% by weight.
[0240] Next, the obtained pelletized polyolefin resin crystal nucleating agent was used to measure the compress...
Embodiment 2
[0242] Except that the amount of DMDBS was changed to 1.4 kg, the amount of GMS was changed to 0.3 kg, and the amount of Irg1010 was changed to 0.3 kg, the same procedure as in Example 1 was carried out to obtain a granular crystal nucleation for polyolefin resin Agent. The final powder temperature was 94°C. Regarding the obtained granular polyolefin resin crystal nucleating agent and the obtained granular polyolefin resin crystal nucleating agent, according to the results of the sieving test, it was confirmed that the residue on the sieve with a mesh size of 600 μm The ratio of the substance to the total weight is 58% by weight.
[0243] Next, using the obtained granular crystal nucleating agent for polyolefin resin, the compression ratio and angle of repose were measured in the same manner as in Example 1, and the caking properties and powder fluidity were further evaluated. The results are shown together In Table 1.
Embodiment 3
[0245] Except that the amount of DMDBS was changed to 1.4 kg, the amount of GMS was changed to 0.4 kg, and the amount of Irg1010 was changed to 0.2 kg, the same procedure as in Example 1 was carried out to obtain a pelletized polyolefin resin crystal nucleation Agent. The final powder temperature is 99°C. Regarding the obtained crystal nucleating agent for granular polyolefin resin, it was confirmed from the results of a sieving test that the ratio of the residue on a sieve with a mesh of 600 μm to the total weight was 99% by weight.
[0246] Next, using the obtained granular crystal nucleating agent for polyolefin resin and the granular crystal nucleating agent for polyolefin resin, the compression ratio and angle of repose were measured in the same manner as in Example 1, and the caking property and powder were further measured. The results of the evaluation of body fluidity are shown in Table 1 together.
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