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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

Inactive Publication Date: 2017-04-19
苏州市炽光新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (2) How to improve the technical problems of low mechanical properties of polypropylene foamed beads and damage and collapse of the cell structure due to the addition of flame retardants and high temperature resistant agents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

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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PUM

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Abstract

The invention relates to high-temperature-resistant polypropylene foam bead, which comprises a polypropylene matrix. A flame-retardant system is composed of the following ingredients (by weight): 6.7-6.9 parts of nano-silica, 15-17 parts of ethoxy alkylamine, 91-93 parts of methyl hydrogen silicone oil, 7.7-7.9 parts of hydroxy polydimethylsiloxane, 8-10 parts of vinyltrimethoxy silane, 3.5-3.7 parts of ammonium polyphosphate, 0.5-0.7 part of a reactive diluent, 0.5-0.7 part of a compatilizer, 1.1-1.3 parts of a coupling agent, 1.5-1.7 parts of a leveling agent and 0.3-0.5 part of mixed rare earth chloride. A high-temperature-resistant system is composed of the following ingredients (by weight): 32-35 parts of nano-montmorillonite, 9.5-9.7 parts of fumed silica, 5-7 parts of nano-zinc oxide, 12-15 parts of gamma-aminopropyltriethoxysilane, 2.1-2.3 parts of alkylphenol polyoxyethylene, and 0.3-0.5 part of mixed rare earth chloride. By adding the flame-retardant system and the high-temperature-resistant system, high temperature resistance, flame retardance, mechanical properties, thermal stability and antistatic property of the polypropylene foam bead can be enhanced.

Description

technical field [0001] The invention relates to a production process of a polypropylene foam material, in particular to a high-temperature-resistant polypropylene foam bead and a production process thereof. Background technique [0002] There are isocyanate residues that are harmful to the human body during the foaming process of polyurethane foam, and the foamed material cannot be recycled. However, chlorofluorocarbons or butane are usually used in the foaming process of polystyrene (PS), which has adverse effects on the environment. The product is difficult to degrade and easy to form "white pollution". The United Nations Environmental Protection Organization has decided to stop using PS foam product. Cross-linked polyethylene foam has low rigidity and a maximum service temperature of 80°C. [0003] Compared with the above foam plastics, polypropylene foam material has many advantages: 1) Polypropylene (PP) is more rigid than polyethylene (PE), PP flexural modulus is abo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L83/05C08L83/06C08K13/02C08K3/36C08K3/32C08K5/13C08K5/5425C08K3/34C08K3/16C08J9/12C08J9/18
CPCC08L23/12C08J9/122C08J9/18C08J2203/06C08J2203/08C08J2323/12C08J2483/06C08K2201/003C08K2201/011C08K2201/014C08L2201/02C08L2201/04C08L2201/08C08L2203/14C08L2205/02C08L2205/035C08L83/04C08L83/06C08K13/02C08K3/36C08K2003/323C08K5/13C08K5/5425C08K3/346C08K3/16
Inventor 张海忠顾军
Owner 苏州市炽光新材料有限公司
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