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Flame-retardant composite material with easy dyeing and laser marking and preparation method thereof

A laser marking and composite material technology, applied in the field of halogen-free flame retardant nylon 66 composite material and its preparation, can solve problems such as environmental hazards, violation of energy conservation and environmental protection, and achieve easy coloring, meet individual requirements, and good dispersion. Effect

Inactive Publication Date: 2012-09-26
NANJING JULONG SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some people add halogenated flame retardants to nylon 66, which can reach the V0 level after flame retardant modification. However, the use of these flame retardants will cause certain harm to the environment and cause great pressure on environmental protection. The concept of energy conservation and environmental protection advocated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Embodiment 1 formula 1 and preparation method

[0031] Recipe 1:

[0032] Nylon 66 resin with an intrinsic viscosity of 2.3, 43 parts (by weight, the same below),

[0033] Alkali-free and arsenic-free chopped glass fiber with a glass fiber diameter of 10 μm, 30 parts,

[0034] Melamine urea cyanate MC-25, 20 parts,

[0035] Magnesium hydroxide, 5 parts,

[0036] Flair 820, 0.4 parts,

[0037] Oxyalkylene coupling agent: KH560, antioxidant: 1098, 168 compound, release agent: fatty acid salt, according to (coupling agent: antioxidant: release agent=1:2:5 weight ratio), A total of 1.6 servings.

[0038] Preparation method: (1) Weigh the raw materials of the formula and mix them evenly in a high mixer;

[0039] (2) Add uniformly mixed raw materials into a twin-screw extruder, melt and blend them with glass fibers at a temperature of 245°C and a screw speed of 300 rpm, and extrude to obtain granules.

Embodiment 2

[0040] Embodiment 2 formula 2 and preparation method

[0041] Recipe 2:

[0042] Nylon 66 resin with an intrinsic viscosity of 2.5, 43 parts,

[0043] The diameter of the glass fiber is 9 μm, alkali-free and arsenic-free chopped glass fiber, 30 parts,

[0044] Melamine polyphosphate MPP 350 powder, 20 parts,

[0045] Magnesium hydroxide, aluminum hydroxide compound, 5 parts,

[0046]Flair 830, 0.4 parts,

[0047] Oxyalkylene coupling agent: KH560, antioxidant: 1098, 168 compound, release agent: fatty acid salt, according to (coupling agent: antioxidant: release agent=1:2:5 weight ratio), 1.6 copies in total;

[0048] Preparation method: (1) Weigh the raw materials of the formula and mix them evenly in a high mixer;

[0049] (2) Add uniformly mixed raw materials into a twin-screw extruder, melt and blend them with glass fibers at a temperature of 250°C and a screw speed of 250 rpm, extrude and granulate, and obtain the product.

Embodiment 3

[0050] Embodiment 3 formula 3 and preparation method

[0051] Recipe 3

[0052] Nylon 66 resin with an intrinsic viscosity of 2.3, 40 parts,

[0053] Alkali-free and arsenic-free chopped glass fiber with a glass fiber diameter of 13 μm, 30 parts,

[0054] Melamine polyphosphate MPP 350 powder, 20 parts,

[0055] Melamine urea cyanate MC-25, 5 parts,

[0056] Wollastonite, 3 parts,

[0057] Flair 835, 0.4 parts,

[0058] Oxyalkylene coupling agent: KH560, antioxidant: 1098, 168 compound, release agent: silicone Anti 200, according to (coupling agent: antioxidant: release agent = 1:2:5 weight ratio), a total of 1.6 parts.

[0059] Preparation method: (1) Weigh the raw materials of the formula and mix them evenly in a high mixer;

[0060] (2) Add uniformly mixed raw materials into a twin-screw extruder, melt and blend them with glass fibers at a temperature of 260°C and a screw speed of 350 rpm, and extrude to obtain granules.

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PUM

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Abstract

The invention provides a composition for preparing halogen-free environmentally-friendly flame-retardant nylon 66 composite materials with glass fibre reinforcement, easy dyeing and laser marking. The composition is prepared from the following components by weight: 30-60 parts of nylon, 20-40 parts of alkali-free arsenic-free chopped glass fibre, 15-30 parts of halogen-free flame retardant, 3-8 parts of synergistic coloured flame-retardant auxiliary, 0.2-1 parts of laser marking auxiliary and 1-2 parts of other auxiliaries. The environment-friendly halogen-free flame retardance of the product reaches the level of UL94V0 and accords with the Rohs requirement of EU. The composition has excellent colouring capability, is suitable for various laser marking and clear in the marks without fading and has excellent overall performance in the glass fibre reinforcement.

Description

[0001] technical field [0002] The invention belongs to the technical field of polymer materials, and in particular relates to a halogen-free flame-retardant nylon 66 composite material with increased strength through glass fibers, easy dyeing, laser marking, and a preparation method thereof. Background technique [0003] Nylon 66 (Nylon 66), scientific name: polyhexamethylene adipamide, another name: PA-66, nylon-66, is a widely used engineering plastic, which is formed by polycondensation of hexamethylene diamine and adipic acid, and its melting point is 252~265℃. Compared with other engineering plastics, it has excellent mechanical properties, electrical properties, oil resistance, heat resistance, wear resistance, electrical insulation, chemical resistance, weather resistance and self-lubricating properties, but due to the amide group Hydrophilic, Nylon 66 has high water absorption, resulting in poor dimensional stability, and its performance drops significantly in hig...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08K13/04C08K7/14C08K5/3492C08K3/32C08K3/22C08K3/38C08K3/26C08K3/34B29C47/92B29C48/92
CPCB29B7/46B29B7/72B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895C08K5/005C08K5/0066C08K5/34928C08L77/06C09K21/04C09K21/10C09K21/12
Inventor 吴汾徐亮周勇
Owner NANJING JULONG SCI&TECH CO LTD
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