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A kind of high-performance composite material prepared by recycling waste carpet pa66 material and its preparation method

A technology of PA66 and composite materials, which is applied in the field of high-performance composite materials prepared from recycled waste carpet PA66 materials and its preparation field, can solve the problems of mechanical properties, molecular weight, and viscosity of recycled carpet PA66 materials. Effect of alcoholysis properties, imposing mechanical properties, and increasing interfacial bond strength

Active Publication Date: 2019-11-19
SHANGHAI PRET COMPOSITES +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, during the first processing and use of recycled carpet PA66 materials, the PA66 molecular chain will be partially degraded, resulting in a decrease in molecular weight and viscosity. In addition, during the recovery process of recycled carpet PA66 materials, it is impossible to remove minerals and Other impurities are completely separated, and there will be a small amount of impurities remaining. These two factors will not only lead to a decline in the mechanical properties of the recycled carpet PA66 material, but also have a great impact on the performance of the composite material prepared from the material. Therefore, the realization of recycling The improvement of the mechanical properties of carpet PA66 material and its composite materials is the key factor to determine whether recycled carpet PA66 can be applied

Method used

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  • A kind of high-performance composite material prepared by recycling waste carpet pa66 material and its preparation method
  • A kind of high-performance composite material prepared by recycling waste carpet pa66 material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 3.02kg of recycled PA66 from waste carpets, dry at 100°C for 4 hours, weigh 0.15kg of toughening agent, 12.5g each of antioxidants 1010 and 168, and mix 25g of lubricant in a high-speed mixer to obtain a resin mixture;

[0036] Weigh 1.75kg of alcoholysis-resistant glass fiber, 25g of adsorbent, and 5g of tackifier. Mix the tackifier and adsorbent evenly in a high-speed mixer, and then mix them with alcoholysis-resistant glass fiber to obtain a glass fiber mixture.

[0037] Add the homogeneously mixed resin mixture into the twin-screw extruder (the screw diameter is 35mm, and the length-to-diameter ratio is L / D=36) through the main feeding port, and the glass fiber mixture is added into the twin-screw extruder through the side feeding port extruder, twin-screw extruder each section control temperature (from feeding port to head outlet) is 230°C, 240°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C ℃, 265℃, the twin-screw extruder speed is 380r / min, the ex...

Embodiment 2

[0040] Weigh 3.015kg of recycled PA66 from waste and old carpets, dry at 100°C for 4 hours, weigh 0.15kg of toughening agent, 12.5g of antioxidants 1010 and 168, and 25g of lubricant and mix them uniformly in a high-speed mixer to obtain a resin mixture;

[0041] Weigh 1.75kg of alcoholysis-resistant glass fiber, 25g of adsorbent, and 10g of tackifier, mix the tackifier and adsorbent evenly in a high-speed mixer, and then mix them with alcoholysis-resistant glass fiber to obtain a glass fiber mixture.

[0042]Add the homogeneously mixed resin mixture into the twin-screw extruder (the screw diameter is 35mm, and the length-to-diameter ratio is L / D=36) through the main feeding port, and the glass fiber mixture is added into the twin-screw extruder through the side feeding port extruder, twin-screw extruder each section control temperature (from feeding port to head outlet) is 230°C, 240°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C ℃, 265℃, the twin-screw extruder sp...

Embodiment 3

[0045] Weigh 3.01kg of recycled PA66 from waste carpets, dry at 100°C for 4 hours, weigh 0.15kg of toughening agent, 12.5g of antioxidants 1010 and 168, and 25g of lubricant, and mix them uniformly in a high-speed mixer to obtain a resin mixture;

[0046] Weigh 1.75kg of alcoholysis-resistant glass fiber, 25g of adsorbent, and 15g of tackifier, mix the tackifier and adsorbent in a high-speed mixer, and then mix them with alcoholysis-resistant glass fiber to obtain a glass fiber mixture.

[0047] Add the homogeneously mixed resin mixture into the twin-screw extruder (the screw diameter is 35mm, and the length-to-diameter ratio is L / D=36) through the main feeding port, and the glass fiber mixture is added into the twin-screw extruder through the side feeding port extruder, twin-screw extruder each section control temperature (from feeding port to head outlet) is 230°C, 240°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C ℃, 265℃, the twin-screw extruder speed is 380r / mi...

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Abstract

The invention discloses a high-performance compound material prepared by a recycled waste carpet PA66 material and a preparation method thereof. The composing formula of the material is formed by the following components by weight percentage: 54-60% of recycled waste carpet PA66; 0-10% of a flexibilizer; 30-35% of alcoholysis-resistant glass fiber; and 0-1% of a tackifier and an antioxidant. The beneficial effects of the high-performance compound material are as follows: firstly, the recycling of the recycled waste carpet material is realized, and the recycling of the resource is realized, the material is green and environmental; secondly, the recycled waste carpet PA66 is modified so as to improve the performance of the recycled waste carpet PA66 and the cohesiveness of the PA66 and the alcoholysis-resistant glass fiber interface, so the compound material has good mechanical property, hydrolysis resistance or alcoholysis resistance and so on; and the application for important parts, such as an automobile front-end module, an automobile engine fan, an oil pan and a radiator water chamber, can be realized.

Description

technical field [0001] The present invention involves reusing recycled carpet PA66 raw materials, and modifying the interface bonding strength of PA66 raw materials and PA66 and alcoholysis-resistant glass fibers to endow the composite material with excellent mechanical properties to meet the requirements of its key parts in automobiles. in the application. Background technique [0002] "Energy crisis" and "environmental pollution" are two major problems facing the world today. In addition to developing new energy sources, we should also establish awareness of environmental protection, cherish and protect the environment, and at the same time save energy and improve energy utilization. At present, the scientific and industrial circles all over the world are aware of the importance of the coordinated development of plastic materials and the environment. Therefore, recycling and comprehensive utilization of waste plastic materials can reduce the cost of raw materials and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/06C08L23/08C08L51/06C08K7/14
CPCC08L77/06C08L2205/035C08L2207/20C08L23/0869C08L51/06C08K7/14
Inventor 张海生陈永东张祥福周文
Owner SHANGHAI PRET COMPOSITES
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