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Halogen-free flame-retardant master batch and preparation method thereof, and glass fiber reinforced nylon material and preparation method thereof

A technology of flame retardant masterbatch and glass fiber, which is applied in the field of preparation of halogen-free flame retardant masterbatch for glass fiber reinforced nylon, can solve the problems of migration and corrosion of equipment of halogen-free flame retardant masterbatch, and achieves stable color and dispersibility. Improve and enhance the effect of dispersion effect

Active Publication Date: 2020-03-27
江苏蔚观新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at one or more of the existing problems in the prior art, the present invention provides a kind of halogen-free flame retardant masterbatch, which solves the non- Halogen flame retardant masterbatch migration, corrosion equipment and other issues

Method used

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  • Halogen-free flame-retardant master batch and preparation method thereof, and glass fiber reinforced nylon material and preparation method thereof
  • Halogen-free flame-retardant master batch and preparation method thereof, and glass fiber reinforced nylon material and preparation method thereof
  • Halogen-free flame-retardant master batch and preparation method thereof, and glass fiber reinforced nylon material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1A

[0065] This example shows a halogen-free flame-retardant masterbatch and its preparation process. The components of the halogen-free flame-retardant masterbatch are shown in Table 1.

[0066] Its preparation process includes the following steps:

[0067] Step 1): Mix the resin (PA6) and antioxidant (phenolic antioxidant 1098) evenly and feed them into the extruder through an active feeding device.

[0068] Step 2): Then organic phosphinate (diethyl aluminum phosphinate, average particle size D50 is 30 μm), organosilicon flame retardant (silicone rubber), inorganic silicon synergist (nano silicon dioxide ) and lubricant (silicone powder and lithium stearate 1:1 combination) are evenly mixed, and are fed into the extruder through the side feeding device of the extruder.

[0069] Step 3): Melt blending and extruding the mixture in step 1). The temperature of each zone of the extruder is controlled between 180°C and 200°C. Specifically, the temperature zone of the extruder is 12...

Embodiment 1B

[0071] This embodiment shows a kind of preparation technology that adopts the method for embodiment 1A to prepare glass fiber reinforced nylon material, comprises the following steps:

[0072] Step 1): Take the method of Example 1A to prepare 2.5kg of halogen-free flame-retardant masterbatch, 4.5kg of nylon 66, 3.0kg of glass fiber and 0.5kg of auxiliary agent and mix evenly;

[0073] Step 2): Use a twin-screw extruder with a diameter of Φ36 and a length-to-diameter ratio of 40 to complete extrusion and granulation. The granulated material is sieved and dried to obtain a glass fiber-reinforced nylon material. The performance of the glass fiber-reinforced nylon material is Please refer to Table 2.

Embodiment 2A

[0075] This example shows a halogen-free flame-retardant masterbatch and its preparation process. The components of the halogen-free flame-retardant masterbatch are shown in Table 1.

[0076] Its preparation process includes the following steps:

[0077] This example shows a halogen-free flame-retardant masterbatch and its preparation process. The components of the halogen-free flame-retardant masterbatch are shown in Table 1.

[0078] Its preparation process includes the following steps:

[0079] Step 1): Mix the resin (PA12) and antioxidant (thioether antioxidant DLTP) evenly and feed them into the extruder through an active feeding device.

[0080] Step 2): then organic silicon phosphinate (aluminum phenyl phosphinate, average particle diameter D50 is 20 μm), organosilicon flame retardant (cage silsesquioxane), inorganic silicon synergist ( Low melting point glass powder) and lubricant (aluminum stearate) are mixed evenly, and are fed into the extruder through the side fe...

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Abstract

The invention provides a halogen-free flame-retardant master batch which comprises the following components in percentage by weight: 15-40% of resin, 50-80% of organic phosphinate, 9-30% of an organicsilicon flame retardant and 1-10% of an inorganic silicon synergist, wherein the sum of the components is 100%. The halogen-free flame-retardant master batch has the advantages of favorable flame-retardant effect, no precipitation and no corrosion on equipment.

Description

technical field [0001] The invention relates to the technical field of flame-retardant modification of polymer materials, in particular to a preparation method and application of a halogen-free flame-retardant masterbatch for glass fiber reinforced nylon. Background technique [0002] Glass fiber reinforced nylon is widely used in many industrial fields due to its excellent mechanical properties, chemical stability and thermal stability, but it is easy to burn when there is a heat source, so it is usually necessary to add a flame retardant to give it the corresponding Flame retardant properties to meet industrial needs, especially in the fields of electronics and new energy vehicles. [0003] Phosphorus-based flame retardants are widely used in the flame-retardant modification of glass fiber reinforced nylon because of their high flame-retardant efficiency, halogen-free, and good electrical properties. Melamine polyphosphate (MPP) synergistic aluminum diethylphosphinate (AD...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L83/04C08K5/5313C08K7/14C08J3/22C08J5/04
CPCC08J3/226C08J5/043C08J2477/02C08J2483/04C08J2377/02C08J2377/06C08K5/5313C08K2201/003
Inventor 许文娟许红卫窦伟栗大利刘鹏
Owner 江苏蔚观新材料科技有限公司
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