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High-temperature-resistant halogen-free flame-retardant PPA composite material and preparation method thereof

A composite material and flame retardant technology, which is applied in the field of high temperature-resistant halogen-free flame-retardant PPA composite materials and its preparation, can solve the problem of low mechanical properties and temperature resistance, lower material temperature resistance, and inability to meet flame-retardant requirements, etc. problems, achieve high cost performance, improve the flame retardant grade, and achieve the effect of good synergistic flame retardant effect

Pending Publication Date: 2021-12-03
DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional non-halogen-free flame-retardant glass fiber reinforced PPA has low mechanical properties and temperature resistance, while the addition of halogen-free flame-retardant glass fiber reinforced PPA will reduce the temperature resistance of the material due to the addition of flame retardants, which limits its application. , the existing halogen-free flame-retardant PPA is easy to decompose and dehydrate during production and processing, which has a great impact on performance and cannot meet the flame-retardant requirements of industries such as electronic appliances, rail transit, and automotive materials.

Method used

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  • High-temperature-resistant halogen-free flame-retardant PPA composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A high temperature-resistant halogen-free flame-retardant PPA composite material, including the following raw materials in parts by weight: 20 parts of PPA resin, 1 part of glass fiber, 10 parts of halogen-free flame retardant, 1 part of coupling agent, 1 part of antioxidant, 0.5 parts of heat stabilizer, 1 part of nano silicon dioxide, 1 part of nucleating agent and 1 part of toughening modifier.

[0033] The toughening modifier includes the following raw materials in parts by weight: 6 parts of hyperbranched epoxy resin, 5 parts of EPDM paraffin oil, 8 parts of nano calcium carbonate and 1 part of calcium stearate.

[0034] Described toughening modifier is made through the following steps:

[0035] S1. Add calcium stearate into nano-calcium carbonate according to parts by weight, heat to 60° C. and continue stirring for 1 hour to obtain mixture A, which is set aside;

[0036] S2. In parts by weight, add EPDM paraffin oil to the mixture A obtained in step S1, heat to ...

Embodiment 2

[0048] A high temperature-resistant halogen-free flame-retardant PPA composite material, including the following raw materials in parts by weight: 25 parts of PPA resin, 2 parts of glass fiber, 12 parts of halogen-free flame retardant, 2 parts of coupling agent, 1.5 parts of antioxidant, 0.75 parts of heat stabilizer, 1.5 parts of nano silicon dioxide, 2 parts of nucleating agent and 2 parts of toughening modifier.

[0049] The toughening modifier includes the following raw materials in parts by weight: 7 parts of hyperbranched epoxy resin, 6 parts of EPDM paraffin oil, 10 parts of nano calcium carbonate and 2 parts of calcium stearate.

[0050] Described toughening modifier is made through the following steps:

[0051] S1. Add calcium stearate into nano-calcium carbonate according to parts by weight, heat to 70° C. and continue stirring for 1.5 hours to obtain mixture A, which is set aside;

[0052] S2. In parts by weight, add EPDM paraffin oil to the mixture A obtained in s...

Embodiment 3

[0064] A high temperature-resistant halogen-free flame-retardant PPA composite material, including the following raw materials in parts by weight: 30 parts of PPA resin, 3 parts of glass fiber, 14 parts of halogen-free flame retardant, 3 parts of coupling agent, 2 parts of antioxidant, 1.0 parts of heat stabilizer, 2 parts of nano silicon dioxide, 3 parts of nucleating agent and 3 parts of toughening modifier.

[0065] The toughening modifier includes the following raw materials in parts by weight: 8 parts of hyperbranched epoxy resin, 7 parts of EPDM paraffin oil, 12 parts of nano calcium carbonate and 3 parts of calcium stearate.

[0066] Described toughening modifier is made through the following steps:

[0067] S1. Add calcium stearate into nano-calcium carbonate according to parts by weight, heat to 80° C. and continue stirring for 2 hours to obtain mixture A, which is set aside;

[0068] S2. According to parts by weight, add EPDM paraffin oil to the mixture A obtained i...

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Abstract

The invention relates to the technical field of high polymer materials, in particular to a high-temperature-resistant halogen-free flame-retardant PPA composite material and a preparation method thereof. The high-temperature-resistant halogen-free flame-retardant PPA composite material comprises the following raw materials in parts by weight: 20-40 parts of PPA resin, 1-5 parts of glass fibers, 10-18 parts of a halogen-free flame retardant, 1-5 parts of a coupling agent, 1-3 parts of an antioxidant, 0.5-1.5 parts of a heat stabilizer, 1-3 parts of nano silicon dioxide, 1-5 parts of a nucleating agent and 1-5 parts of a toughening modifier. The high-temperature-resistant halogen-free flame-retardant PPA composite material disclosed by the invention has the characteristics of excellent heat resistance, favorable flame retardancy, no blistering after being subjected to reflow soldering at 250 DEG C, rapid prototyping, high cost performance and the like, the flame-retardant level reaches UL94 0.8 mm V0, and the application field of PPA resin is greatly expanded.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high temperature-resistant halogen-free flame-retardant PPA composite material and a preparation method thereof. Background technique [0002] Polyphthalamide (abbreviated as PPA) resin is a semi-aromatic polyamide made from terephthalic acid or phthalic acid. PPA resins are stronger and harder than aliphatic polyamides such as Nylon 6; they are less sensitive to moisture; have better thermal properties; and are much better in creep, fatigue and chemical resistance. Due to the outstanding physical, thermal and electrical properties of PPA resin, especially the moderate cost, it has a wide range of applications. At present, PPA can be widely used in the automotive industry, such as higher performance motors, automotive headlight reflectors, bearing housings, pulleys, sensor housings, fuel line components and electrical components, etc. [0003] The traditional non-ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L91/06C08K7/14C08K5/5313C08K3/22C08K3/38C08K5/098C08K3/26
CPCC08L77/06C08K2003/2224C08K2003/387C08K2003/265C08L2201/02C08L2201/08C08L2201/22C08L91/06C08K7/14C08K5/5313C08K3/22C08K3/38C08K5/098C08K3/26
Inventor 李崀涂伟冯圣榕
Owner DONGGUAN ZHONGYI NEW MATERIAL TECH CO LTD
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