CN103642214A

CN103642214A - Low-cost flame-retardant modified nylon material for automobile plastic members

Info

Publication number: CN103642214A
Application number: CN201310576140.9A
Authority: CN
Inventors: 仇珍芳; 吴康希; 章云; 孙益民; 金川人
Original assignee: Anhui Yiwanfeng Electric Appliance Co Ltd
Current assignee: Anhui Yiwanfeng Electric Appliance Co Ltd
Priority date: 2013-11-18
Filing date: 2013-11-18
Publication date: 2014-03-19

Abstract

The invention relates to the field of high-molecular materials, and specifically relates to a low-cost flame-retardant modified nylon material for automobile plastic members. The material is prepared from the following raw materials in parts by weight: 100 parts of nylon 12, 4-5 parts of ammonium polyphosphate, 12-15 parts of magnesium hydroxide, 0.5-1 part of ethylenebisoleamide, 10-13 parts of tree ash, 3-5 parts of barium sulfate, 2-3 parts of basic bismuth chloride, 3-4 parts of dimethyl fumarate, 2-3 parts of aminopropyltriethoxysilane and 12-15 parts of an auxiliary agent. The raw materials such as tree ash, magnesium hydroxide and the like are employed for modification processing on nylon 6, the modified mixed material has good processing performance and mechanical performance, the prepared material is tough, pliable, resistant to impact, easy for process molding and good in flame retardance, and the cost is controlled; and the addition of basic bismuth chloride helps to increase the glossiness of the material, the material is beautiful and practical, safe and reliable to use, and can be widely used to prepare various automobile plastic members.

Description

A kind of low-cost flame-retardant automotive plastic parts modified nylon materials

Technical field

The invention belongs to polymeric material field, be specifically related to modified nylon materials and preparation method thereof for a kind of low-cost flame-retardant automotive plastic parts.

Background technology

Development along with automobile industry, the comfortableness of people to automobile, security, aesthetic property, the requirement of the use propertieies such as energy saving is more and more higher, and improvement orthodox car material, it is the fundamental way of improving vehicle operation performance, macromolecular automobile plastic material has many outstanding advantages than orthodox car material, quality is light, mechanical property is superior, easily machine-shaping, material can reuse, also there is remarkable attractive, decorative effect, yet also there are some shortcomings in these macromolecular materials, such as rigidity is poor, easily burning, non-refractory low temperature aging etc., therefore, in order to improve the performance of traditional macromolecular material, widen materials'use scope, need to improve original automotive plastic formula, material is carried out to modification, can be widely used in each position of automobile.

Summary of the invention

The object of the invention is to, a kind of low-cost flame-retardant automotive plastic parts modified nylon materials is provided, promoted the performance of conventional nylon material, make it possess good mechanical property, can adapt to specific environment for use, to achieve these goals, the technical solution used in the present invention is as follows:

A kind of low-cost flame-retardant automotive plastic parts modified nylon materials, it is characterized in that, material of the present invention is made by the raw material of following weight part: nylon 12 100, ammonium polyphosphate 4-5, magnesium hydroxide 12-15, the two amine hydroxybenzene 0.5-1 of ethylene, trees ashes 10-13, barium sulfate 3-5, Basic Bismuth Chloride 2-3, dimethyl fumarate 3-4, aminopropyl triethoxysilane 2-3, auxiliary agent 12-15.

Described auxiliary agent is made by the raw material of following weight part: clay 300-320, ethoxylated trimethylolpropane triacrylate 3-4, jade powder 4-6, diatomite in powder 12-15, nanometer brown alundum powder 3-5, zinc oxide 1-2, wollastonite powder 3-4, magnesium hydroxide 10-12, clorafin 1-2, tributyl citrate 2-3, aluminium hydroxide 8-10, Syzygium aromaticum stem oil 1-2, linking agent TAC 1-2; Preparation method puts into calcining furnace by clay to calcine 3-4 hour at 710-740 ℃, cooling, puts into 10-12% hydrochloric acid soln and soaks 1-2 hour, filter and take out, with clear water, clean and dry, be ground into 200-400 order powder, mix with other remaining component, grinding distribution is even, obtains.

Described a kind of low-cost flame-retardant automotive plastic parts modified nylon materials, its preparation method is: nylon 12, trees ashes, dimethyl fumarate are mixed, be heated to 250-280 ℃, to nylon 12 meltings, stir 5-8 minute, add again magnesium hydroxide, the two amine hydroxybenzenes of ethylene, aminopropyl triethoxysilane, stir 4-5 minute, finally add other remaining component, stir after 5-8 minute, send into extruding pelletization in twin screw extruder, obtain.

The present invention utilizes the raw materials such as trees ashes, magnesium hydroxide to carry out modification to nylon 6, the compound obtaining after improvement has good processing characteristics and mechanical property, and the material of preparation is firm pliable and tough, shock resistance, easily machine-shaping, flame retardant properties is good, and cost is under control, Basic Bismuth Chloride add the glossiness that has increased material, both artistic and practical, safe and reliable, can meet specific environment for use condition, market application foreground is wide.

Embodiment

The present embodiment material is made by the raw material of following weight part: nylon 12 100, ammonium polyphosphate 5, magnesium hydroxide 15, the two amine hydroxybenzenes 1 of ethylene, trees ashes 13, barium sulfate 5, Basic Bismuth Chloride 3, dimethyl fumarate 4, aminopropyl triethoxysilane 3, auxiliary agent 15.

Described auxiliary agent is made by the raw material of following weight part: clay 300, ethoxylated trimethylolpropane triacrylate 3, jade powder 6, diatomite in powder 12, nanometer brown alundum powder 3, zinc oxide 1, wollastonite powder 4, magnesium hydroxide 10, clorafin 1, tributyl citrate 3, aluminium hydroxide 8, Syzygium aromaticum stem oil 1, linking agent TAC 1; Preparation method puts into calcining furnace by clay at 740 ℃, to calcine 4 hours, cooling, puts into 12% hydrochloric acid soln and soaks 2 hours, filters and takes out, and with clear water, cleans and dries, and is ground into 400 order powder, mixes with other remaining component, and grinding distribution is even, obtains.

Described a kind of low-cost flame-retardant automotive plastic parts modified nylon materials, its preparation method is: nylon 12, trees ashes, dimethyl fumarate are mixed, be heated to 280 ℃, to nylon 12 meltings, stir 8 minutes, add again magnesium hydroxide, the two amine hydroxybenzenes of ethylene, aminopropyl triethoxysilane, stir 5 minutes, finally add other remaining component, stir after 8 minutes, send into extruding pelletization in twin screw extruder, obtain.

The performance test results of material of the present invention is: tensile strength is 123MPa, and elongation at break is 35.4%, and flexural strength is 117.8MPa, modulus in flexure 5800MPa, and shock strength is 61.8KJ/m ², heat-drawn wire (1.82MPa) is 230 ℃, after 136 ℃ * 168h hot air aging, and stretching strength retentivity 94.1%, elongation at break conservation rate is 94.8%, impacting embrittlement temperature is-40 ℃, combustionvelocity 23mm/min.

Claims

1. a low-cost flame-retardant automotive plastic parts modified nylon materials, it is characterized in that, this material is made by the raw material of following weight part: nylon 12 100, ammonium polyphosphate 4-5, magnesium hydroxide 12-15, the two amine hydroxybenzene 0.5-1 of ethylene, trees ashes 10-13, barium sulfate 3-5, Basic Bismuth Chloride 2-3, dimethyl fumarate 3-4, aminopropyl triethoxysilane 2-3, auxiliary agent 12-15;

2. a kind of low-cost flame-retardant automotive plastic parts modified nylon materials as claimed in claim 1, its manufacture craft is: nylon 12, trees ashes, dimethyl fumarate are mixed, be heated to 250-280 ℃, to nylon 12 meltings, stir 5-8 minute, add again magnesium hydroxide, the two amine hydroxybenzenes of ethylene, aminopropyl triethoxysilane, stir 4-5 minute, finally add other remaining component, stir after 5-8 minute, send into extruding pelletization in twin screw extruder, obtain.