Preparation method of glass fiber-reinforced PA56/PP alloy material

An alloy material and glass fiber technology, which is applied in the field of preparation of glass fiber reinforced PA56/PP alloy materials, can solve the problems of unstable crystallisation, poor dimensional stability and low impact strength of PA56, and achieve good mechanical properties and dimensional stability, The effect of good anti-oxidation performance and easy control

Inactive Publication Date: 2020-07-28
NANJING LIHUA ENG PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, PA56 has obvious defects in the application of engineering plastics. Its water absorption rate and water absorption rate are higher than PA66, and its dimensional stability is worse than that of PA66.
Secondly, the crystallization of PA56 is unstable and its oxidation resistance is poor, and the properties of the material will change when it is used in a high temperature environment for a long time
At the same time, after modification, the impact strength of PA56 is low, which is not as good as that of PA66.

Method used

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  • Preparation method of glass fiber-reinforced PA56/PP alloy material
  • Preparation method of glass fiber-reinforced PA56/PP alloy material
  • Preparation method of glass fiber-reinforced PA56/PP alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The glass fiber reinforced PA56 / PP alloy material used in this embodiment consists of the following components by weight: 44.5 parts of PA56, 20 parts of PP, 5 parts of compatibilizer, 0.2 part of antioxidant, 0.3 part of lubricant, 30 parts of Composed of glass fibers.

[0025] The preparation method for the glass fiber reinforced PA56 / PP alloy material of the present embodiment comprises the following steps:

[0026] S1. Blend PA56, PP, compatibilizer, antioxidant and lubricant in proportion and stir evenly;

[0027] S2. Add the mixture obtained in step S1 into the twin-screw extruder. The temperature of the twin-screw extruder has 9 zones in total, and the process temperatures of the eight zones are 265°C, 260°C, 255°C, 245°C, and 235°C. , 230°C, 225°C, 225°C, 230°C, the speed of the main machine is controlled at 400 rpm, and chopped glass fibers are added from the side feed during the extrusion process, and finally extruded, cooled, drawn, and pelletized. Finally,...

Embodiment 2

[0030] The glass fiber reinforced PA56 / PP alloy material used in this embodiment consists of the following components by weight: 44.5 parts of PA56, 10 parts of PP, 5 parts of compatibilizer, 0.2 part of antioxidant, 0.3 part of lubricant, 40 parts Composed of glass fibers.

[0031] The preparation method for the glass fiber reinforced PA56 / PP alloy material of the present embodiment comprises the following steps:

[0032] S1. Blend PA56, PP, compatibilizer, antioxidant and lubricant in proportion and stir evenly;

[0033] S2. Add the mixture obtained in step S1 into the twin-screw extruder. The temperature of the twin-screw extruder has 9 zones in total, and the process temperatures of the eight zones are 265°C, 260°C, 255°C, 245°C, and 235°C. , 230°C, 225°C, 225°C, 230°C, the speed of the main machine is controlled at 400 rpm, and chopped glass fibers are added from the side feed during the extrusion process, and finally extruded, cooled, drawn, and pelletized. Finally, th...

Embodiment 3

[0036] The glass fiber reinforced PA56 / PP alloy material used in this embodiment consists of the following components by weight: 44.5 parts of PA56, 30 parts of PP, 5 parts of compatibilizer, 0.2 part of antioxidant, 0.3 part of lubricant, 20 parts Composed of glass fibers.

[0037] The preparation method for the glass fiber reinforced PA56 / PP alloy material of the present embodiment comprises the following steps:

[0038] S1. Blend PA56, PP, compatibilizer, antioxidant and lubricant in proportion and stir evenly;

[0039] S2. Add the mixture obtained in step S1 into the twin-screw extruder. The temperature of the twin-screw extruder has 9 zones in total, and the process temperatures of the eight zones are 265°C, 260°C, 255°C, 245°C, and 235°C. , 230°C, 225°C, 225°C, 230°C, the speed of the main machine is controlled at 400 rpm, and chopped glass fibers are added from the side feed during the extrusion process, and finally extruded, cooled, drawn, and pelletized. Finally, th...

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Abstract

The invention relates to the technical field of high polymer materials, particularly to a glass fiber-reinforced PA56 / PP alloy material and a preparation method thereof. The material is composed of PA56, PP, a compatilizer, an antioxidant, a lubricant and glass fibers. According to the invention, the above components are used in a matched mode. specific weight is reasonably selected, and glass fiber reinforcement is adopted, so the mechanical property of the PA56 / PP alloy material is greatly improved, each property of the PA56 / PP alloy material is fully embodied, and the PA56 / PP alloy materialhas good impact resistance and low water absorption rate. The preparation method disclosed by the invention is simple to operate and high in production benefits, product cost can be reduced, and theapplication range of PA56 is expanded.

Description

technical field [0001] The invention belongs to the technical field of polymer materials and processing, in particular to a method for preparing glass fiber reinforced PA56 / PP alloy materials. Background technique [0002] With the reduction of global petroleum energy and the improvement of people's awareness of environmental protection, the development of renewable bio-based polyamides from biomass raw materials has become a research and development hotspot in the global chemical industry and related industries. Bio-based nylon PA56 is a new type of bio-based polyamide synthesized from bio-based pentamethylenediamine and petroleum-based adipic acid. Bio-based pentamethylenediamine can be obtained by effectively using starch microorganisms to convert sugars, which reduces production costs, alleviates the pressure of shortage of petroleum resources, and improves product quality. It is a very competitive nylon material. [0003] The molecular structure of PA56 and PA66 is sim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L23/12C08L23/14C08L51/08C08L51/06C08L83/04C08K13/06C08K9/06C08K7/14C08K5/098C08J5/08
CPCC08J5/08C08J2377/06C08J2423/12C08J2423/14C08J2451/08C08J2451/06C08J2483/04C08K13/06C08K9/06C08K7/14C08K5/098
Inventor 袁永星毕书华路学春
Owner NANJING LIHUA ENG PLASTIC
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