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High-viscosity halogen-free flame-retardant polyamide composition

A technology of flame-retardant polyamide and composition, which is applied in the field of halogen-free flame-retardant, excellent extrusion performance composition, and high viscosity field. The appearance is smooth and black, the color is uniform, and the bending performance is good.

Inactive Publication Date: 2010-06-30
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technology is only suitable for extruding bellows with small inner diameter. When extruding bellows with larger inner diameter, the pipe wall is too thin or the wall thickness is uneven.
Moreover, it does not meet the increasing requirements of flame retardant and environmental protection.

Method used

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  • High-viscosity halogen-free flame-retardant polyamide composition
  • High-viscosity halogen-free flame-retardant polyamide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0026] In the following examples, PA6 is selected from: the products of Russia Gubixue Flurazide Co., Ltd.;

[0027] PA1212 is selected from: Shandong Dongchen Co., Ltd. products;

[0028] EPDM is selected from: maleic anhydride grafted ethylene-propylene-diene copolymer;

[0029] SBS is selected from: styrene-butadiene-styrene block copolymer grafted with glycidyl acrylate;

[0030] POE is selected from: maleic anhydride grafted ethylene copolymers;

[0031] The halogen-free flame retardant is selected from: melamine cyanurate, a product of Swiss Ciba Specialty Chemicals.

[0032] Antioxidant 1098 is selected from: Irganox 1098 produced by Swiss Ciba Fine Chemicals;

[0033] Antioxidant 168 is selected from: Irganox 168 produced by Swiss Ciba Fine Chemicals;

[0034] The lubricant is selected from: calcium stearate.

[0035] Mix the polyamide resin, toughening agent, halogen-free flame retardant and various additives according to the content in Table 1 at high speed with...

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Abstract

The invention relates to a high-viscosity halogen-free flame-retardant polyamide composition which comprises the following components in parts by weight: 60-92 of polyamide, 3-20 of plasticizer, 5-20 of halogen-free flame retardant and 0.1-2 of other assistants. After the polyamide composition prepared by the invention is formed and processed, a product has good flexibility, twisting resistance and good bending property and can bear a heavier load; the product has acid resistance and friction resistance, has resistance to lubricating oil and cooling liquid and has luster at the surface; the product can bear the stress of foot tread, has no rupture and no deformation, can be quickly restored and has no any damage per se; and the appearance of the product is smooth, black and bright, and the product has no broken fragments and has uniform color. The invention can be used for the finished pieces of a corrugated pipe and the like of a high-grade automobile.

Description

technical field [0001] The invention relates to a polyamide-based high-viscosity, halogen-free flame-retardant composition with excellent extrusion performance, which is suitable for extruding wire sheaths, wire harness tubes and bellows of machine tools for high-end automobiles. Background technique [0002] With the development of the automobile industry, accessories such as automobile wire sheaths and wire harness tubes made of metal are gradually replaced by plastic corrugated pipes. Compared with metal pipes, plastic corrugated pipes have many advantages. First of all, plastic corrugated pipes are both rigid and flexible. They have sufficient mechanical properties and excellent flexibility. Secondly, the plastic corrugated pipe per unit length has the advantages of light weight, material saving, energy consumption reduction and cheap price. In addition, the plastic corrugated pipe has strong chemical corrosion resistance and can withstand the acid and alkali corrosion ...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08K5/3492
Inventor 吕励耘
Owner HEFEI GENIUS NEW MATERIALS
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