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Halogen-free flame-retardant polypropylene compound suitable for new energy automobile as well as application and preparation method of halogen-free flame-retardant polypropylene compound

A technology for flame-retardant polypropylene and new energy vehicles, which is applied in the field of high-molecular polymers, can solve the problems of poor thermal stability of phosphorus-nitrogen-type halogen-free intumescent flame retardants, decreased flame-retardant properties of materials, and poor hydrolytic stability. Excellent heat resistance and hydrolysis resistance, improve poor water resistance, good dispersion effect

Active Publication Date: 2021-06-15
KINGFA SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phosphorus-nitrogen type halogen-free intumescent flame retardant still has shortcomings: the surface polarity of the phosphorus-nitrogen type halogen-free intumescent flame retardant is particularly strong, so the compatibility with polypropylene is relatively poor, so the phosphorus-nitrogen type Halogen-free intumescent flame retardants have poor thermal stability and very poor hydrolytic stability. After long-term use of new energy vehicles, due to thermal decomposition of flame retardants caused by thermal aging and hydrolysis of flame retardants caused by humid weather, the flame retardant performance of the final material severe decline

Method used

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  • Halogen-free flame-retardant polypropylene compound suitable for new energy automobile as well as application and preparation method of halogen-free flame-retardant polypropylene compound
  • Halogen-free flame-retardant polypropylene compound suitable for new energy automobile as well as application and preparation method of halogen-free flame-retardant polypropylene compound
  • Halogen-free flame-retardant polypropylene compound suitable for new energy automobile as well as application and preparation method of halogen-free flame-retardant polypropylene compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The halogen-free flame-retardant polypropylene compound of this embodiment is composed of the components in Table 1 (Example 1), and the preparation method of the halogen-free flame-retardant polypropylene compound is as follows:

[0037] (1) Mix 0.5 parts by weight of hindered amine light stabilizer UV-3529, 1 part by weight of epoxy resin KD-213, 10 parts by weight of intumescent halogen-free flame retardant FP-2200 and 10 parts by weight of polypropylene PP S700 in banburying Fully banbury in the machine for 30 minutes to ensure that the surface of the halogen-free flame retardant is fully coated with epoxy resin and hindered amine light stabilizer, so as to improve the thermal stability and hydrolysis resistance of the halogen-free flame retardant. A single-screw extruder connected in series with an internal mixer is extruded and granulated to obtain flame-retardant masterbatches.

[0038] (2) Combine the flame retardant masterbatch produced by the first step intern...

Embodiment 2

[0040] The halogen-free flame-retardant polypropylene compound of this embodiment is composed of the components in Table 1 (Example 2), and the preparation method of the halogen-free flame-retardant polypropylene compound is as follows:

[0041](1) 1 part by weight of hindered amine light stabilizer UV-3529, 2 parts by weight of epoxy resin KD-213, 20 parts by weight of intumescent halogen-free flame retardant FP-2200 and 5 parts by weight of polypropylene PP S700 in banburying Fully banbury in the machine for 30 minutes to ensure that the surface of the halogen-free flame retardant is fully coated with epoxy resin and hindered amine light stabilizer, so as to improve the thermal stability and hydrolysis resistance of the halogen-free flame retardant. A single-screw extruder connected in series with an internal mixer is extruded and granulated to obtain flame-retardant masterbatches.

[0042] (2) The flame retardant masterbatch produced by the first step internal mixer interna...

Embodiment 3

[0044] The halogen-free flame-retardant polypropylene compound of this embodiment is composed of the components in Table 1 (Example 3), and the preparation method of the halogen-free flame-retardant polypropylene compound is as follows:

[0045] (1) 2 parts by weight of hindered amine light stabilizer UV-3529, 4 parts by weight of epoxy resin KD-213, 30 parts by weight of intumescent halogen-free flame retardant FP-2200 and 15 parts by weight of polypropylene PP S700 in banburying Fully banbury in the machine for 30 minutes to ensure that the surface of the halogen-free flame retardant is fully coated with epoxy resin and hindered amine light stabilizer, so as to improve the thermal stability and hydrolysis resistance of the halogen-free flame retardant. A single-screw extruder connected in series with an internal mixer is extruded and granulated to obtain flame-retardant masterbatches.

[0046] (2) The flame-retardant masterbatch produced by the first step of internal mixer m...

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Abstract

The invention relates to the technical field of high-molecular polymers, in particular to a halogen-free flame-retardant polypropylene compound suitable for a new energy automobile as well as application and a preparation method of the halogen-free flame-retardant polypropylene compound. The halogen-free flame-retardant polypropylene compound comprises the following components: 43.5-78.4 parts by weight of polypropylene; 10-30 parts by weight of a phosphorus-nitrogen type halogen-free intumescent flame retardant; 1-4 parts by weight of epoxy resin; 0.5-2 parts by weight of a hindered amine light stabilizer; 10-20 parts by weight of talcum powder; and 0.1-0.5 parts by weight of a heat stabilizer. The halogen-free flame-retardant polypropylene compound has the advantages of good flame retardant property, good thermal stability and good water resistance, and can be applied to preparation of flame-retardant parts and flame-retardant electronic and electrical parts around a battery pack of a new energy automobile.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a halogen-free flame-retardant polypropylene compound suitable for new energy vehicles and its application and preparation method. Background technique [0002] Due to its advantages of non-toxicity, environmental protection and recyclability, polypropylene has rapidly replaced expensive engineering plastics in many fields of the national economy such as automobiles, electronic appliances, construction, textiles and packaging, and has been widely used. Due to its cost-effective advantages, polypropylene has gradually replaced ABS, PC / ABS and other engineering plastics and has been widely used in auto parts. New energy vehicles have become the development trend of the national automobile industry due to their environmental protection features. New energy vehicles use battery packs to replace the engines of fuel vehicles. For extremely large brominated flame retardants, halogen-f...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L63/00C08K3/34C08K9/10C08K5/00C08K13/06
CPCC08L23/12C08L2201/02C08L2201/22C08L63/00C08K3/34C08K9/10C08K5/0066C08K13/06
Inventor 陈延安陈平绪叶南飚黄险波孙刚倪梦飞李国明杨波夏建盟
Owner KINGFA SCI & TECH CO LTD
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