Low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and preparation method thereof

A thermoplastic composition and antistatic technology, applied in the field of modified polyamide, can solve problems such as deterioration of working environment and endangering the health of production personnel, achieve good flame retardancy and mechanical strength, reduce phosphorus precipitation and excessive odor Effect

Active Publication Date: 2012-07-11
SHANGHAI PRET COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The release of a small amount of phosphine will deteriorate the working environment and endanger the health of production personnel

Method used

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  • Low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and preparation method thereof
  • Low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and preparation method thereof
  • Low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and preparation method thereof

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Experimental program
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Effect test

Embodiment Construction

[0024] Preparation and testing methods: Extrude each component in a twin-screw extruder (twin-screw diameter 30mm, aspect ratio 44) at a temperature of 220-300°C, discharge as strands and cool to a temperature capable of granulation Granulation, after the pellets are dried in an oven at 110°C for 4-5 hours, the obtained pellets are processed into test specimens at a temperature of 220-300°C, including ISO standard tensile, bending, thermal deformation, impact, etc. module.

[0025] The odor test is carried out according to the Volkswagen interior odor test method PV3900; the test judgment standard is divided into 1 to 6 levels, and there will also be situations between the two evaluation levels.

[0026] Rating 1 Odorless

[0027] Rating 2 Smells, but not disturbing

[0028] Score 3 Odor is noticeable but not disturbing

[0029] Rating 4 Disturbing smell

[0030] Score 5 has a strong disturbing smell

[0031] Rating 6 has an unbearable smell

[0032] Bacteriostasis is ca...

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Abstract

The invention relates to a low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and a preparation method thereof, and belongs to the field of polymer modification and processing, which includes the following raw materials: by weight, 40-60% of a nylon resin; 5-10% of a microcapsule red phosphor masterbatch; 3%-8%of a compatibilizer; 5-40% of padding; 1-5% of modified activated zeolite powder; 0.5-2% of nanometer magnesium oxide; and 0-5%of other auxiliaries. The modified activated zeolite powder is activated by a natural zeolite powder, and then modified by a cationic surface active agent. According to the low odor, anti-static electricity, red phosphorus flame retardant thermoplastic composition and the preparation method thereof, the low odor, anti-static electricity, and high stability red phosphorus flame retardant thermoplastic composition is prepared by adding the modified activated zeolite powder on the basic formula of the red phosphorus flame retardant thermoplastic composition and simultaneously has a certain antibacterial effect; the thermoplastic composition is capable of being prepared into various sample pieces through extrusion molding, and suitable for coal mine underground equipments, textile equipments and medical health instruments.

Description

technical field [0001] The invention relates to a low-odor antistatic red phosphorus flame-retardant thermoplastic composition and a preparation method thereof, belonging to the technical field of modified polyamide. Background technique [0002] Because red phosphorus flame retardant only contains elemental phosphorus, it has the highest flame retardant efficiency among halogen-free phosphorus flame retardant nylon products. Due to the small amount of addition, its flame retardant products have good mechanical properties; on the other hand, red phosphorus flame retardant The burning nylon composition has a high CTI value and is widely used in the fields of electrical appliances, capacitor boxes, connectors, and circuit breakers. [0003] The red phosphorus flame retardant nylon thermoplastic composition is sheared under high temperature and high pressure during the extrusion and injection molding process, and the red phosphorus will chemically react with the trace moisture ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/02C08L77/06C08K13/06C08K9/10C08K3/02C08K9/04C08K7/26C08K3/22B29B9/06B29C47/92B29C48/92
CPCB29C48/04
Inventor 王力勇陈永东张祥福周文
Owner SHANGHAI PRET COMPOSITES
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