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Polypropylene long carbon chain nylon blend and preparation method thereof
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A long carbon chain, polypropylene technology, applied in the field of polymer material processing, can solve the problems that have not yet been seen, and achieve the effect of low production cost, high impact toughness and softness, good toughness and softness
Active Publication Date: 2016-01-06
INST OF CHEM CHINESE ACAD OF SCI
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Problems solved by technology
So far, there have been no related patents and reports on improving the toughness of polypropylene with long carbon chain nylon as the dispersed phase and adding reaction compatibilizers or inorganic fillers as compatibilizers
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Embodiment 1
[0041] The iPP is MoplenHP555E, the melt flow index is 0.8g / 10min (230°C, 2.16Kg), and the melt flow rate of the PA1212 is 4.5g / 10min (235°C, 2.16Kg).
[0042] In terms of weight percentage, 70wt% iPP, 19.6wt% long carbon chain nylon PA1212, 10wt% reaction compatibilizer PP-g-GMA, 0.2wt% antioxidant tetrakis [β-(3,5-di Tertiary butyl-4-hydroxyl phenyl) propionic acid] pentaerythritol ester, the lubricant hexenyl bis stearamide of 0.2wt%, utilize high-speed stirrer to mix and obtain mixture, then the mixture is used twin-screw extruder at a temperature of Melt blending is carried out at 170-260°C to obtain a blend of iPP and PA1212.
Embodiment 2
[0044] The PP is MoplenHP501L, the melt flow rate is 6g / 10min (230°C, 2.16Kg), and the melt flow rate of the PA1212 is 4.5g / 10min (235°C, 2.16Kg).
[0045] In weight percentage, 64.6wt% iPP, 30wt% long carbon chain nylon PA1212, 5wt% reaction compatibilizer POE-g-MAH, 0.2wt% antioxidant tris(2,4-ditertiary butyl phenyl) ester, 0.2wt% lubricant sodium stearate, and use a high-speed mixer to mix uniformly to obtain a mixture, and then melt and blend the mixture with a twin-screw extruder at a temperature of 170-260°C to obtain PP Blends with PA1212.
Embodiment 3
[0047] The PP is MoplenHP500N, the melt flow rate is 12g / 10min (230°C, 2.16Kg), and the melt flow rate of the PA1212 is 9.0g / 10min (235°C, 2.16Kg).
[0048] In terms of weight percentage, 70wt% of PP, 15wt% of long carbon chain nylon PA1212, 9.6wt% of reaction compatibilizer EAA, 5wt% of toluene diisocyanate modified silica, 0.2wt% of antioxidant pentaerythritol bis Phosphite bis (2,4-di-tert-butylphenyl) ester, 0.2wt% lubricant tristearin, use a high-speed mixer to mix uniformly to obtain a mixture, and then use a twin-screw extruder to obtain a mixture at a temperature of Melt blending at 170-260°C to obtain a blend of PP and PA1212.
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Abstract
The invention belongs to the field of high-molecular material processing, and specifically relates to a polypropylene long-carbon-chain nylon blend and a preparation method thereof. The high-toughness polypropylene long-carbon-chain nylon blend comprises the following components in percents by mass: 50-95 wt% of polypropylene, 1-40 wt% of long-chain nylon, 1-15 wt% of a reaction compatibilizer or a filling material, 0.2-1 wt% of an anti-oxidant and 0.1-0.5 wt% of a lubricant. By adding the long-carbon-chain nylon and the reaction compatibilizer or the filling material, the toughness of polypropylene is improved, and the blend is not reduced in tensile strength and has relatively low viscosity, the blend is beneficial to extrusion processing, and has extremely good comprehensive performances.
Description
technical field [0001] The invention belongs to the field of polymer material processing, and relates to a polypropylene blend, in particular to a polypropylene (PP) / long carbon chain nylon (PA) blend, and a preparation method for the blend. Background technique [0002] Polyolefin materials, especially polypropylene materials, have the characteristics of abundant raw material sources, simple synthesis process, low density, low dielectric rate, excellent processing performance and modulus, and low price, and have been widely used in various fields of industrial production. , such as auto parts, construction industry, furniture industry, toy industry and food packaging industry, etc. Especially in recent years, the growth rate of PP output has remained at about 8%, becoming the fastest growing variety among several major engineering plastics. [0003] However, PP has a large shrinkage rate during processing and molding, poor aging resistance, poor low-temperature impact toug...
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