Green environment friendly flame-proof PA6/PP alloy and method for producing the same

A green environmental protection and alloy technology, applied in the field of polymer materials, can solve the problems of no thermodynamic compatibility, poor thermodynamic compatibility, low impact strength, etc., and achieve good flame retardancy, low cost and good flame retardancy. Effect

Inactive Publication Date: 2009-08-19
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When PP is used alone, there are disadvantages such as poor heat resistance and low impact strength.
PP is a non-polar polymer and has no thermodynamic compatibility with highly polar PA6, so the thermodynamic compatibility of PP / PA6 is poor when directly blended

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The weight ratio of PA6 is 71.8% (the following are all weight ratios), PP 12%, flame retardant PPZ 6%, anti-dripping agent 0.3%, 1010 / 168 0.2 / 0.2%, toughening agent C223A 8%, compatible Agent 1%, other 0.5%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1: 140°C; zone 2: 190°C; zone 3: 220°C; zone 4: 230°C; head: 200°C; residence time 2-3min. The pressure is 15MPa.

Embodiment 2

[0034] The weight ratio of PA6 is 65.2% (the following are all weight ratios), PP 15%, flame retardant PPZ8%, anti-dripping agent 0.4%, 1010 / 168 0.2 / 0.3%, toughening agent C223A 9%, compatibilizer 1.5%, other 0.4%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 150°C; zone 2: 190°C; zone 3: 220°C; zone 4: 230°C; head: 200°C; residence time 2-3min. The pressure is 15MPa.

Embodiment 3

[0036] The PA6 weight ratio is 66.1% (the following are weight ratios), PP 13%, flame retardant PPZ 10%, anti-dripping agent 0.5%, 1010 / 168 0.3 / 0.2%, toughening agent C223A 8%, compatibilizer 1.5%, other 0.4%. The mixed material is put into the hopper of the twin-screw extruder, melted and blended, extruded and granulated to form a composite material. Among them, the temperature settings of each heating zone of the screw are: zone 1 temperature: 150°C; zone 2: 195°C; zone 3: 220°C; zone 4: 230°C; head: 200°C; residence time 2-3min. The pressure is 15MPa.

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Abstract

The invention discloses an environment-friendly flame retardant PA6/PP alloy and a preparation method thereof. The alloy comprises the components proportioning by weight: 65-76% of PA6, 10-15% of PP, 6-10% of flame retardant, 0.1-0.5% of Anti-dripping agent, 6-10% of toughener, 1-2% of compatilizer, 0.4-0.6% of antioxidizer and 0.3-0.5% of other accessory ingredients. The materials of the invention has excellent combination property, improves the hydroscopicity and processability of the PA6, and enhances the mechanical property, heat resisting property, surface color property and the like of the PP. By being added with the environment-friendly flame retardant, the alloy can reach the requirements of ROSH and WEEE instruction of European Union, thus laying good foundation for the products which are exported into European Union.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a green and environment-friendly flame-retardant PA6 / PP alloy and a preparation method thereof. Background technique [0002] PA6 (polyamide 6 or nylon 6) is a translucent or opaque milky white semi-crystalline polymer, which is characterized by excellent thermodynamic properties, light weight, good toughness, good chemical resistance and durability, and good wear resistance , Self-lubrication. However, PA6 has strong water absorption and poor processing performance. [0003] PP (polypropylene) is a semi-crystalline material with very good chemical stability, mechanical strength, electrical insulation properties and thermal stability, especially excellent oil resistance and solvent resistance. PP used alone has disadvantages such as poor heat resistance and low impact strength. PP is a non-polar polymer and has no thermodynamic compatibility with highly polar PA6, so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L85/02C08K5/134C08K5/526B29B9/00B29C47/92C08L23/12B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/40B29C48/9185B29C2948/92514B29C2948/92561B29C2948/9259B29C2948/92885B29C2948/92895B29C2948/92904
Inventor 徐东贺永邢家思
Owner SHENZHEN KEJU NEW MATERIAL
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