High-temperature-resistant polypropylene foam bead and production technology thereof
A technology of foamed beads and polypropylene, which is applied in the production process of polypropylene foamed materials, can solve the problems of cell structure damage, collapse, and low mechanical properties of polypropylene foamed beads, so as to increase the strength of the carbon layer , Improvement of mechanical properties and improvement of flame retardant performance
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Embodiment 1
[0018] This embodiment is a kind of high-temperature-resistant polypropylene foam beads, including a polypropylene matrix, and the components by weight of the polypropylene matrix are: polypropylene resin: 105 parts, 3-hydroxypropionitrile: 1 part, orthoformaldehyde Base hydroquinone: 0.3 parts, nucleating agent: 2.6 parts, antioxidant: 3.1 parts, lubricant: 1.2 parts, filler: 6.5 parts; also includes flame retardant system and high temperature resistant system, the addition amount of flame retardant system It is 7% of the weight of the polypropylene matrix, and the addition amount of the high temperature resistant system is 13% of the weight of the polypropylene matrix; Alkylated alkylamine: 15 parts, methyl hydrogen silicone oil: 91 parts, hydroxyl polydimethylsiloxane: 7.7 parts, vinyltrimethoxysilane: 8 parts, ammonium polyphosphate: 3.5 parts, reactive diluent : 0.5 parts, compatibilizer: 0.5 parts, coupling agent: 1.1 parts, leveling agent: 1.5 parts, mixed rare earth ch...
Embodiment 2
[0022] This embodiment is a high-temperature-resistant polypropylene foamed bead, including a polypropylene matrix, and the components by weight of the polypropylene matrix are: polypropylene resin: 106 parts, 3-hydroxypropionitrile: 2 parts, o-formaldehyde Base hydroquinone: 0.4 parts, nucleating agent: 2.7 parts, antioxidant: 3.2 parts, lubricant: 1.3 parts, filler: 6.6 parts; also includes flame retardant system and high temperature resistant system, the addition amount of flame retardant system It is 8% of the weight of the polypropylene matrix, and the addition amount of the high temperature resistant system is 14% of the weight of the polypropylene matrix; the composition of the weight part of the flame retardant system is: nano-silica: 6.8 parts, ethoxylated Amine: 16 parts, methyl hydrogen silicone oil: 92 parts, hydroxyl polydimethylsiloxane: 7.8 parts, vinyltrimethoxysilane: 9 parts, ammonium polyphosphate: 3.6 parts, reactive diluent: 0.6 parts, Compatibilizer: 0.6 ...
Embodiment 3
[0026] This embodiment is a kind of high-temperature resistant polypropylene foamed beads, including a polypropylene matrix, and the components by weight of the polypropylene matrix are: polypropylene resin: 107 parts, 3-hydroxypropionitrile: 3 parts, o-formaldehyde Base hydroquinone: 0.5 parts, nucleating agent: 2.8 parts, antioxidant: 3.3 parts, lubricant: 1.5 parts, filler: 6.7 parts; also includes flame retardant system and high temperature resistant system, the addition amount of flame retardant system It is 9% of the weight of the polypropylene matrix, and the addition amount of the high temperature resistant system is 15% of the weight of the polypropylene matrix; Amine: 17 parts, methyl hydrogen silicone oil: 93 parts, hydroxyl polydimethylsiloxane: 7.9 parts, vinyltrimethoxysilane: 10 parts, ammonium polyphosphate: 3.7 parts, reactive diluent: 0.7 parts, Compatibilizer: 0.7 parts, coupling agent: 1.3 parts, leveling agent: 1.7 parts, mixed rare earth chloride: 0.5 par...
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