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Double-antibody material and preparation method thereof

A technology of raw materials and antistatic agents, which is applied in the field of double antistatic materials and their preparation, can solve the problems of damaging the physical properties of materials, affecting the mechanical properties of materials, and affecting the physical properties of materials, so as to achieve increased compatibility, high mechanical properties, and no The effect of precipitation

Pending Publication Date: 2022-07-29
SHANGHAI RES INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor compatibility of hydroxide itself in nylon and the limited flame retardant effect, a large amount of addition is required to achieve the required flame retardant effect, which seriously damages the physical properties of the material
In Chinese patent CN104559151, red phosphorus is used as a flame retardant to achieve a corresponding flame retardant effect, but it has a certain impact on the mechanical properties of the prepared material
Patents CN101629007A, CN0195626A, etc. use the combination of piperazine phosphate and pentaerythritol to achieve the flame retardant effect. However, the traditional polyphosphate flame retardants are not compatible with nylon, and the addition amount is high, which is easy to affect the performance of the material. Physical properties, and its resistance to precipitation is poor

Method used

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  • Double-antibody material and preparation method thereof
  • Double-antibody material and preparation method thereof
  • Double-antibody material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] 1) By weight, 5 parts of DOPO phosphine phenanthrene compounds, 20 parts of PAPP-5, 5 parts of triazine carbon-forming agent, 10 parts of wollastonite, 0.5 part of antioxidant 1010, 0.5 part of phenyl salicylate, 0.5 part of ethylene bis-stearoyl was added into a high-speed mixer for high-speed pre-mixing to obtain a mixture. The rotational speed of the blades was 200 rpm, the mixing time was 3 minutes, the inclination angle of the body was 0°, and the staggered angle of the blades was 45°. Subsequently, 58.5 parts of nylon was added to the above mixture, and mixed at high speed for 2 min to obtain a mixture.

[0072] 2) The stirred mixture is placed in the feeding section of the twin-screw extruder, and after the material is extruded by screw mixing, it is extruded from the die; the temperature of the first to fifth sections of the twin-screw extruder is once : 180°C, 200°C, 220°C, 220°C, 220°C; the speed of the main engine of the twin-screw extruder is 220r / min; the f...

Embodiment 10-14

[0083] Compared with Example 7, most of them are the same, except that the nylon in this example is adjusted to PA66, PA56, PA9T, PA10T, PA6T of equal weight, respectively.

Embodiment 15-21

[0085] Compared with Example 7, most of them are the same, except that the antioxidants in this example are adjusted to equal weights of 2,6 di-tert-butyl-p-cresol, 1,1,3 tris(2-methyl) respectively. -4Hydroxy-5-tert-butylphenyl)butane, 2,2'-methylenebis(4-ethyl-6-tert-butylphenol), 1,3,5-tris(3,5tert-butyl- 4-Hydroxybenzyl)trimethylbenzene, 2,2'-methylenebis(4-methyl-6-tert-butylphenol), 1,6hexamethylenebis(3,5di-tert-J- 4-Hydroxyphenyl)propionate, 4,4'-di-tert-octyldiphenylamine.

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PUM

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Abstract

The invention relates to a double-resistant material and a preparation method thereof. The material comprises the following raw material components in percentage by weight: 40-80% of nylon, 0.1-30% of a halogen-free composite flame retardant, 0.1-10% of a flow modifier, 0.1-5% of an antistatic agent, 0.1-5% of an antioxidant, 0.1-5% of a light stabilizer and 0.1-5% of a lubricant. Compared with the prior art, the material prepared by the invention has high flame retardant property, high thermal stability, migration resistance, antistatic property and good physical property, not only can reliably meet UL94V-0 under the condition that the thickness of a sample is 1.6 mm, but also the surface resistivity can reach 108ohm or below.

Description

technical field [0001] The invention belongs to the technical field of flame retardant materials, and relates to a double-resistance material and a preparation method thereof. Background technique [0002] Nylon is flammable due to its chemical composition. The nylon material itself has a long-chain structure, which has a great fire hazard. At the same time, the limiting oxygen index (LOI) of the material itself is only 17-18%, there is no grade for vertical combustion, and its combustion flame is large, easy to melt droplets, and high calorific value, which can easily cause continuous fire. In order to be able to meet the stringent flame retardancy requirements imposed by plastics processing and, to a certain extent, legislators, it is often necessary to equip plastics with flame retardants. [0003] Nylon is generally reinforced in the mining field due to its amide structure and high water absorption. At the same time, due to its complex structure, it is difficult to fo...

Claims

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Application Information

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IPC IPC(8): C08L77/02C08L25/18C08K5/5313C08K5/3462C08K9/10C08K3/24C08K9/06C08K5/3492C08K9/04
CPCC08L77/02C08L2201/04C08L2201/02C08L2201/22C08K2201/011C08L25/18C08K5/5313C08K5/3462C08K9/10C08K3/24C08K9/06C08K5/3492C08K9/04
Inventor 肖雄叶文许肖丽付灿林倬仕许保云艾波陈彦昊杨朱承
Owner SHANGHAI RES INST OF CHEM IND
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