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Halogen-free flame retardant thermoplastic polyamide composition

A technology of thermoplastic polyamide and composition, which is applied in the field of polyamide composition, and can solve the problems of low fluidity, surface blooming, poor flame retardant effect, etc.

Active Publication Date: 2013-06-19
浙江通力新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a halogen-free flame-retardant thermoplastic polyamide composition, which solves the problems of low fluidity, poor flame-retardant effect and surface blooming in the prior art

Method used

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  • Halogen-free flame retardant thermoplastic polyamide composition
  • Halogen-free flame retardant thermoplastic polyamide composition
  • Halogen-free flame retardant thermoplastic polyamide composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Weigh the thermoplastic polyamide resin EPR27 and polyester modified polydimethylsiloxane respectively according to the ratio shown in Table 2 H-Si6440P, organic phosphinate OP1240 and antioxidant IR1098 are pre-mixed evenly with a high-speed mixing and stirring device at room temperature, and the mixture is quantitatively transported from the main hopper to the main feeding port of the co-rotating twin-screw extruder, BDP And RDP is quantitatively transported to the liquid feeding port through the liquid metering pump, and the glass fiber ECS-301NF is quantitatively transported to the twin-screw through the side feeder for melt extrusion. The extrusion temperature is 265 ° C and the speed is 200 rpm. After cooling in the water tank, use a granulator to cut into granules with a length of about 3mm. After the granules are vacuum-dried at 120°C for 6 hours, they are injected into standard splines with an injection molding machine, and the UL94, flow properties and surface...

Embodiment 2

[0087] Weigh thermoplastic polyamide resin EPR27, polyamide resin C206F, olefin modified polysiloxane masterbatch respectively according to the ratio shown in Table 2 Antiscratch200, polyester modified polydimethylsiloxane H-Si6440P, phosphate ester PX200, organic phosphinate OP950, talc powder 8860 and antioxidant IR1098 are pre-mixed evenly with a high-speed mixing and stirring device at room temperature, and the mixture is quantitatively transported from the main hopper to the co-rotating twin-screw extruder. In the main feeding port of the machine, the glass fiber ECS-301NF is quantitatively conveyed to the twin-screw by side feeding, and then melted and extruded. The extrusion temperature is 265°C and the rotation speed is 200rpm. Cut into granules with a length of about 3mm. After the granules were vacuum-dried at 120°C for 6 hours, they were injection molded into standard strips with an injection molding machine, and the UL94, flow properties and surface quality were ...

Embodiment 3

[0089] Weigh thermoplastic polyamide resin EPR27 and olefin modified polysiloxane masterbatch respectively according to the ratio shown in Table 2 Antiscratch200, polyester modified polydimethylsiloxane H-Si6440P, phosphate ester PX200, organic phosphinate OP950, talc powder 8860 and antioxidant IR1098 are pre-mixed evenly with a high-speed mixing and stirring device at room temperature, and the mixture is quantitatively transported from the main hopper to the co-rotating twin-screw extruder. In the main feeding port of the machine, the glass fiber ECS-301NF is quantitatively conveyed to the twin-screw by side feeding, and then melted and extruded. The extrusion temperature is 265°C and the rotation speed is 200rpm. Cut into granules with a length of about 3mm. After the granules were vacuum-dried at 120°C for 6 hours, they were injection molded into standard strips with an injection molding machine, and the UL94, flow properties and surface quality were measured. The results...

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Abstract

The invention provides a halogen-free flame retardant thermoplastic polyamide composition. The composition comprises the following components: 20-80wt% of at least one thermoplastic polyamide (A), 1-10wt% of at least one organic modified polydimethylsiloxane (B), 3-20wt% of at least one aromatic phosphate (C), 3-25wt% of at least one of phosphinates (D) with a structure shown in formula (I) and / or bi-phosphinates (D) with a structure shown in formula (II), 0-40wt% of reinforced fibers (E) and 0-40wt% of an inorganic filler (F). By utilizing the halogen-free flame retardant thermoplastic polyamide composition, the high fluidity, high surface quality, high flame retardance and excellent demoulding performance are combined together, the operation is simple, and the prepared composition is environment-friendly.

Description

technical field [0001] The invention relates to the technical field of polyamide compositions, in particular to a halogen-free flame-retardant thermoplastic polyamide composition. Background technique [0002] Thermoplastic polyamide resins, such as nylon 6 and nylon 66, have excellent mechanical properties, electrical properties and excellent formability, and are widely used in electronic and electrical equipment, household equipment, office automation equipment, automobiles and mechanical equipment, etc. in the field. [0003] In order to prevent and reduce the occurrence of fire, these applications often require polyamide to have good flame retardancy. The most commonly used method to impart flame retardancy to polymer materials is to introduce flame retardants, including halogenated flame retardants and halogen-free flame retardants. Among them, halogenated flame retardants generally have high flame retardant efficiency, relatively small amount of addition, and have li...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L83/04C08L71/12C08L81/02C08K5/523C08K7/14C08K7/06C08K7/10C08K5/5313C08K3/34
Inventor 王相友
Owner 浙江通力新材料科技股份有限公司
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