Low-temperature impact-resistant and low stress whitening-resistant long glass fiber reinforced polypropylene material, and preparation method and application thereof
A polypropylene material, low stress technology, applied in the field of reinforced modified polypropylene materials, can solve the problems of filling materials not meeting the requirements, affecting the appearance of parts, and only focusing on materials, so as to improve the drop strength and stress whitening resistance , good drop resistance, and the effect of reducing stress whitening
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[0038] Example 1:
[0039] The low-temperature impact resistance, low-stress whitening long glass fiber reinforced polypropylene material in this embodiment is composed of 60% long glass fiber reinforced polypropylene masterbatch in weight percentage, and high-temperature impact resistance, low-stress whitening mother batch 40% of the granules, of which the components in the long glass fiber reinforced polypropylene masterbatch are composed of the following components, and the specific proportions are shown in Table 1 by weight percentage: copolymer polypropylene, glass fiber, maleic acid grafted polypropylene, Antioxidant, processing aid stearic acid; the components in the low-temperature impact resistance, low-stress whitening masterbatch are composed of the following components, and the specific proportions are shown in Table 2: Copolypropylene, grafted elastomer POE, antioxidant, processing aid erucamide; long glass fiber reinforced polypropylene masterbatch and low-temperatu...
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[0044] Example 2
[0045] The low-temperature impact-resistant, low-stress whitening long glass fiber reinforced polypropylene material in this embodiment is composed of 60% long glass fiber reinforced polypropylene masterbatch by weight, and 40 %, the components in the long glass fiber reinforced polypropylene masterbatch are composed of the following components, and the specific proportions are shown in Table 1 by weight percentage: copolymerized polypropylene, glass fiber, acrylic grafted polypropylene, antioxidant, processing Additive butyl stearate; the components in the low-temperature impact resistance, low-stress blushing masterbatch are composed of the following components, and the specific proportions are shown in Table 2: copolymer polypropylene, grafted EPDM elastomer, bromine Chemical epoxy resin, antioxidant, processing aid ethylene bis-stearamide; long glass fiber reinforced polypropylene masterbatch and low-temperature impact resistance, low-stress blushing master...
Example Embodiment
[0047] Example 3
[0048] The low-temperature impact-resistant, low-stress whitening long glass fiber reinforced polypropylene material in this embodiment is composed of 60% long glass fiber reinforced polypropylene masterbatch by weight, and 40 %, the components in the long glass fiber reinforced polypropylene masterbatch are composed of the following components, and the specific proportions are shown in Table 1 by weight percentage: copolymerized polypropylene, glass fiber, acrylic grafted polypropylene, antioxidant, processing Additive butyl stearate; the components in the low-temperature impact resistance, low-stress whitening masterbatch are composed of the following components, and the specific proportions are shown in Table 2: Copolypropylene, grafted POE elastomer, bromine Polystyrene, antioxidant, processing aid ethylene bis-stearamide; long glass fiber reinforced polypropylene masterbatch and low-temperature impact resistance, low-stress whitening masterbatch are all 12...
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