A kind of auxiliary agent masterbatch for polyvinyl chloride modification and preparation method thereof
A polyvinyl chloride and modification technology, applied in the field of polyvinyl chloride-modified auxiliary master batch and its preparation, can solve the problems of incompatibility of impact toughness and heat resistance, and achieve improved thermal stability and excellent comprehensive performance. , The effect of improving impact toughness
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Embodiment 1
[0030] Weigh 100 grams of PVC, 2 grams of ABS high-glue powder, 1 gram of nano-white carbon black, 4 grams of lanthanum laurate, 1 gram of coordination type mercaptan methyl tin, 1.5 grams of ethylene glycol monostearate, intrinsically viscous 0.5 g of SAN with a count of 10 ml / g and 0.5 g of ACR with an intrinsic viscosity of 0.5 ml / g were added to a high-speed mixer and mixed for 10 minutes, and discharged when the mixing temperature reached 60° C. to obtain a mixture.
[0031] Put the obtained mixture into a mold on a flat vulcanizing machine at 175°C for 3 minutes and preheat it for 3 minutes, hot press at 10 MPa for 10 minutes, take it out and cold press it on a flat vulcanizing machine at room temperature for 2 minutes to obtain a modified PVC material. The mechanical properties and Vicat softening temperature were tested, and the results are shown in Table 1.
Embodiment 2～6
[0033] The mixture was prepared according to the process of Example 1, wherein the amount of ABS high rubber powder was replaced by 8 grams, 14 grams, 20 grams, 26 grams, 40 grams respectively, and the quality of other components remained unchanged. The modified PVC material was prepared according to the process of Example 1, and its mechanical properties and Vicat softening temperature were tested. The results are shown in Table 1.
[0034] As shown in Table 1, observing the experimental results of Examples 1 to 6, it can be seen that when only ABS high rubber powder is added, the impact strength of the modified PVC material increases steadily as the amount of ABS high rubber powder added increases. , from 4.7kJ / m 2has been increased to 41.2kJ / m 2 ; The elongation at break of the material has also been significantly improved. It can be seen that the ABS high rubber powder has a significant effect on the impact toughness of the PVC material.
[0035] However, with the increa...
Embodiment 7
[0039] According to the experimental results of Examples 1-6, based on 100 grams of PVC, the amount of ABS high-grade rubber powder was selected as 30 grams, and the properties of the modified PVC material were further tested after adding general-grade ABS.
[0040] Weigh 100 grams of PVC, 30 grams of ABS high rubber powder, 10 grams of general-purpose ABS, 1 gram of nano-silica, 4 grams of lanthanum laurate, 1 gram of coordination-type mercaptan methyl tin, ethylene glycol monostearate 1.5 grams of ester, 2 grams of SAN with an intrinsic viscosity of 10 ml / g, and 2 grams of ACR with an intrinsic viscosity of 0.5 ml / g were added to a high-speed mixer and mixed for 10 minutes. When the mixing temperature reached 60° C., the mixture was discharged to obtain a mixture.
[0041] Put the obtained mixture into a mold on a flat vulcanizing machine at 175° C. to preheat for 3 minutes, hot press at 10 MPa for 10 minutes, take it out, and cold press it on a flat vulcanizing machine at ro...
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Abstract
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