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Reinforced and toughened nylon composite material and preparation method thereof

A nylon composite material, strengthening and toughening technology, used in the field of strengthening and toughening nylon composite materials and their preparation, can solve the problems of reduced strength of finished products, low bending performance, large material shrinkage, etc. Improves compatibility and adhesion

Inactive Publication Date: 2019-08-30
宁德市华昊新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, reinforced and toughened nylon composite materials modified by glass fibers have the problems of large material shrinkage, poor apparent quality, and low bending performance. In order to enhance toughness, more toughening agents are added, such as the Chinese invention with application number 201210129480.2 The patent discloses a compound toughened and reinforced nylon and its preparation method. Its composition and the weight percentage of each composition are as follows: nylon 66 resin 58%-74%, toughening agent 10%-25%, glass fiber 15%-27% %, processing aid 1%-2%, the sum of the proportions of the above components is 100%, and the content of the toughening agent reaches 10%-25%, although this method of increasing the toughening agent is helpful to certain Improve the toughness to a certain extent, but also reduce the strength of the finished product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A reinforced and toughened nylon composite material, including the following raw materials: 18kg of glass fiber reinforced PA66 particles, 18kg of PA66 particles, 6.4kg of PA66 toughened particles, 9kg of PA6M2400 particles, 9kg of PA6F132-C particles, 2.7kg of XY-401 Compatibilizer, 2kg of colored sand, 0.3kg of silicone lubricant GM-100A, 0.3kg of lubricant TAF and 40kg of glass fiber;

[0022] The diameter of the glass fiber is 13-31 μm, and the moisture content of the glass fiber is less than 0.15%;

[0023] The tensile strength of the PA66 toughened particles is 103;

[0024] The glass fiber content in the glass fiber reinforced PA66 particles is 30%;

[0025] Dry the above-mentioned glass fiber reinforced PA66 particles, PA66 particles, PA66 toughened particles, PA6M2400 particles and PA6F132-C particles at 25-30°C, then mix with XY-401 compatibilizer, colored sand, silicone lubricant GM-100A, lubricant TAF and glass fiber are mixed evenly, and the mixed materia...

Embodiment 2

[0028] A reinforced and toughened nylon composite material, including the following raw materials: 27kg of glass fiber reinforced PA66 particles, 27kg of PA66 particles, 9.6kg of PA66 toughened particles, 13.5kg of PA6M2400 particles, 13.5kg of PA6F132-C particles, 4.05kg of XY -401 compatibilizer, 3kg of colored sand, 0.45kg of silicone lubricant GM-100A, 0.45kg of lubricant TAF and 60kg of glass fiber;

[0029] The diameter of the glass fiber is 16 μm, and the moisture content of the glass fiber is 0.08%;

[0030] The tensile strength of the PA66 toughened particles is 105-145MPa;

[0031] The glass fiber content in the glass fiber reinforced PA66 particles is 15%;

[0032] Dry the above-mentioned glass fiber reinforced PA66 particles, PA66 particles, PA66 toughened particles, PA6M2400 particles and PA6F132-C particles at 25-30°C, then mix with XY-401 compatibilizer, colored sand, silicone lubricant GM-100A, lubricant TAF and glass fiber are mixed evenly, and the mixed mat...

experiment example

[0038] Performance indicators such as tensile strength and flexural strength of the reinforced and toughened nylon composite material A of Test Example 1 and the reinforced and toughened nylon composite material B of Comparative Example 1, the test environment temperature is 23 ± 2 ° C, humidity 50 ± 5%, The results are shown in Table 1.

[0039] Table 1

[0040] Test items standard test unit A test result B's test result Tensile Strength ISO-527 MPa 187.6 172 elongation at break ISO-527 ％ 3.3 3.5 Bending strength ISO-178 MPa 275 262 Flexural modulus ISO-178 MPa 10653 9765 Izod notched impact strength ISO-180 KJ / m 2

[0041] In summary, the reinforced and toughened nylon composite material provided by the present invention can reduce the usage of overall raw materials, reduce production costs, and reduce the usage of PA6M2400 particles by increasing the usage of glass fiber reinforced PA66 particles and PA66...

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Abstract

The invention discloses a reinforced and toughened nylon composite material, and belongs to the technical field of polymer composite materials. The reinforced and toughened nylon composite material comprises the following raw materials: in parts by weight, 18 parts of glass fiber-reinforced PA66 particles, 18 parts of PA66 particles, 6.4 parts of PA66 toughened particles, 9 parts of PA6 M2400 particles, 9 parts of PA6 F132-C particles, 2.7 parts of a compatibilizer, 2 parts of color sand, 0.6 part of a lubricant and 40 parts of glass fiber. The invention also discloses a preparation method ofthe reinforced and toughened nylon composite material. According to the reinforced and toughened nylon composite material, the compatibility and adhesion among different PA66 particles and PA6 particles can be improved through change of the types and proportions of the raw materials, and the rigidity and strength of the reinforced and toughened nylon composite material are improved; and the appearance is good, the appearance quality is good, and the overall bending performance is improved.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to a reinforced and toughened nylon composite material and a preparation method thereof. Background technique [0002] Nylon is commonly known as polyamide (PA), and is the first synthetic fiber in the world. PA has good comprehensive properties, such as good mechanical properties, heat resistance, wear resistance and self-lubrication, and low friction coefficient. It has certain flame retardancy and is easy to process. With continuous development, there are now dozens of varieties of PA, including PA6, PA66, PAll, PA12, PA46, PA610, PA612, etc. Among them, PA6 and PA66 should be relatively wide varieties. With the growth of nylon production scale at home and abroad and the continuous improvement of production technology, many composite materials for different application scenarios have emerged. Such composite materials have more outstanding performa...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L77/02C08L83/04C08K7/14C08K5/20
CPCC08K2201/003C08L77/06C08L2205/02C08L2205/025C08L2205/035C08L2205/08C08L77/02C08L83/04C08K7/14C08K5/20
Inventor 余维勉
Owner 宁德市华昊新材料有限公司
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