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Nylon composition, preparation method and applications thereof

A composition, nylon technology, applied in the field of polymer modified materials, can solve the problems of obvious impact on mechanical properties and low mechanical properties of materials

Active Publication Date: 2013-05-01
TIANJIN KINGFA NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The content of glass fiber or carbon fiber in the existing halogen-free flame-retardant reinforced nylon composition is generally lower than 35 parts by weight, and the content of glass fiber or carbon fiber has a significant impact on the mechanical properties of the material. , the mechanical properties of the material are significantly lower than those of halogen-containing flame retardant materials

Method used

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  • Nylon composition, preparation method and applications thereof
  • Nylon composition, preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Add 35 parts by weight of nylon 6 (viscosity 2.4), 0.2 parts by weight of antioxidant 1010, 0.3 parts by weight of copper salt composite antioxidant, 0.5 parts by weight of pentaerythritol stearate, and 2 parts by weight of SMA into a high mixer, 20 parts by weight Parts of aluminum hypophosphite, 5 parts by weight of ammonium polyphosphate, and 2 parts by weight of antimony trioxide are mixed uniformly at room temperature, and then passed into the extruder through the main feed port of the twin-screw extruder. The process conditions of the extruder are : The first section of the eight-section twin-screw extruder is the feeding section, the second section is the mixing compression section, the third and fourth sections are the melting section, and the latter section is the homogenization section. The temperature of the feeding section of the twin-screw extruder is 230-250°C, the temperature of the mixing compression section is 250-270°C, the temperature of the melting se...

Embodiment 2

[0059] 25 parts by weight of nylon 66 (viscosity 2.4), 0.2 parts by weight of antioxidant 1098, 0.3 parts by weight of copper salt composite antioxidant, 1 part by weight of oxidized polyethylene wax, 0.5 parts by weight of EMA, 15 parts by weight of aluminum hypophosphite, 5 parts by weight Add ammonium polyphosphate and 3 parts by weight zinc borate into the high-mixer and mix evenly at room temperature, and then pass into the extruder through the main feed port of the twin-screw extruder. The process conditions of the extruder are: eight stages The first section of the twin-screw extruder is the feeding section, the second section is the mixing compression section, the third and fourth sections are the melting section, and the latter section is the homogenization section. The temperature of the feeding section of the twin-screw extruder is 230-250°C, the temperature of the mixing compression section is 250-270°C, the temperature of the melting section is 260-280°C, the tempe...

Embodiment 3

[0064] 10 parts by weight of nylon 66 (viscosity 2.7), 7 parts by weight of nylon 6 (viscosity 2.4), 0.2 parts by weight of antioxidant 1098, 0.3 parts by weight of copper salt composite antioxidant, 2 parts by weight of montan wax, 0.5 parts by weight of SMA, Add 8 parts by weight of aluminum hypophosphite, 5 parts by weight of ammonium polyphosphate and 2 parts by weight of talcum powder into the high mixer, mix evenly at room temperature, and then pass into the extruder through the main feed port of the twin-screw extruder Among them, the process conditions of the extruder are: the first section of the ten-section twin-screw extruder is the feeding section, the second section is the mixing compression section, the third and fourth sections are the melting section, and the latter section is the homogenization section. The temperature of the feeding section of the twin-screw extruder is 230-250°C, the temperature of the mixing compression section is 250-270°C, the temperature ...

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Abstract

The present invention provides a nylon composition, a preparation method and applications thereof. The preparation method comprises: uniformly mixing a nylon resin, a maleic anhydride copolymer, a halogen-free red and phosphorus-free fire retardation agent, a fire retardation synergist, an antioxidant and a lubricant according to a certain ratio, placing the mixed material in a twin-screw extruder through a main material inlet of the extruder, and placing glass fibers or carbon fibers in the extruder respectively through different side material inlets of the twin-screw extruder. According to the halogen-free and red phosphorus-free fire retardation nylon composition preparation method, the glass fibers or the carbon fibers are added respectively through the different side material inlets of the twin-screw extruder, such that disadvantages of reduced fire retardation, not high strength, not high modulus retention rate and the like due to excessive fiber addition caused by a candlewick effect are overcome compared with the common preparation method, and the method is applicable for fire retardation electronic and electrical product fields with high strength requirements.

Description

technical field [0001] The invention belongs to the technical field of polymer modified materials, and in particular relates to a nylon composition and a preparation method thereof. Background technique [0002] Flame-retardant reinforced nylon is being widely used in electronics, electrical, automobile, electric tools and home appliances industries due to its excellent flame-retardant properties, electrical properties and mechanical properties. The most widely used flame retardant for nylon materials is the bromine-antimony system flame retardant. This type of flame retardant has the characteristics of high flame retardant efficiency, low addition amount, and small impact on material properties. Due to the growing concern about agent toxicity and safety, flame-retardant nylon halogen-free red phosphating is becoming the development trend of the industry. [0003] In the preparation process of the existing halogen-free flame-retardant reinforced nylon composition, the compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L77/06C08L35/06C08L23/08C08K13/06C08K9/06C08K7/06C08K7/14C08K5/5313C08K3/32C08K3/22C08K3/34C08K3/38B29B9/06B29C47/92B29C48/92
CPCB29B7/46B29B7/7461B29B7/90B29B9/06B29B9/12B29B9/14B29C48/04B29C48/40C08K5/5313C08K5/5393C08K7/04C08K7/14C08L23/0869C08L25/08C08L77/02C08L77/06C09K21/12
Inventor 谭麟陈国雄梁惠强孙雅杰孙东海陶四平李东
Owner TIANJIN KINGFA NEW MATERIAL
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