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A kind of diamondene reinforced and toughened PA6 modified plastics and preparation method thereof

A technology of strengthening and toughening nanodiamondene, which is applied in the field of modified engineering plastics and polymer material modification, and can solve the negative impact on the physical and mechanical properties of processed fluid products, the ear of the container is easy to break, and the surface of the product is easy to produce fibers and other problems, to achieve the effect of enhanced binding ability, increased compatibility, and stable properties

Active Publication Date: 2018-01-30
ZHENGZHOU ARTIFICIAL DIAMOND & PROD ENG TECH RES CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The reinforcing material of reinforced nylon is generally glass fiber, and its defects are: the surface of the product is easy to produce fibers, resulting in an uneven surface; in addition, while nylon is reinforced, there will be problems of poor toughness, such as containers The ear of the instrument is easy to break, and the buckle of the instrument is easy to break; therefore, the development of high-strength and high-toughness nylon composite materials has become another major topic of nylon modification technology.
[0004] The engineering plastic PA used as an electrical component needs to increase the performance of flame retardancy. At present, the most widely used flame retardants in China are mainly halogen or phosphorus flame retardants. It will produce a lot of smoke and release toxic and corrosive hydrogen halide gas; in addition, it is a filler type flame retardant, so it has a great negative impact on the processing fluidity and the physical and mechanical properties of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of preparation technology of nanodiamondene, its step is:

[0027] (1) Preliminary crushing: the diamond raw material is sent into the ball mill shaping barrel, after the ball mill crushing and shaping process of steel balls of different sizes under high-speed rotation, it is carried out through a screen with a certain mesh number at the receiving port of the ball mill. Collection, the mesh number of the sieve is not less than 70 mesh, and the ball milling time is generally controlled within 1 to 5 hours. The 70 mesh coarse material is automatically returned to the ball mill for ball milling and reshaping; the collected particles above 70 mesh are passed through a multi-layer vibrating screen machine. The particle size is first classified, and the mesh number of the sieve is arranged from high to low from 100 mesh to 800 mesh. The time of vibrating the sieve is generally 30 minutes to 2 hours. Finally, the fine material filtered by the 800 mesh sieve is collected,...

Embodiment 2

[0035]A diamondene reinforced and toughened PA6 modified plastic is made of the following raw materials in parts by weight: 85 parts of nylon chips, 10 parts of nanodiamondene, and 1.5 parts of calcium stearate. The preparation method of nanodiamondene is the same as in Example 1.

[0036] Nanodiamondene is subjected to the following surface functionalization treatment: adding nanodiamondene to ethanol, ultrasonically dispersing for 1 hour, adding hydrolyzed titanate coupling agent, stirring and reacting at 50°C for 22 hours, and drying by centrifugation; the nanodiamondene The dosage ratio of alkene to ethanol is 0.8g:50ml, and the addition amount of titanate coupling agent is 3.0% of that of nanodiamondene.

[0037] The preparation method of the above-mentioned diamondene reinforced and toughened PA6 modified plastics comprises the following steps: 1) Weigh and mix the raw materials in proportion to obtain a mixture; 2) Melt extrusion: send the mixture into a twin-screw extr...

Embodiment 3

[0039] A diamondene reinforced and toughened PA6 modified plastic is made of the following raw materials in parts by weight: 95 parts of nylon chips, 5 parts of nanodiamondene, and 0.5 part of stearic acid. The preparation method of nanodiamondene is the same as in Example 1.

[0040] The nano-diamantene is subjected to the following surface functionalization treatment: adding the nano-diamantene to ethanol, ultrasonically dispersing for 0.5 h, adding the hydrolyzed titanate coupling agent, stirring and reacting at 40°C for 20 h, and drying by centrifugation; The dosage ratio of nanodiamantene and ethanol is 0.5g:50ml, and the addition amount of titanate coupling agent is 1.0% of nanodiamantene.

[0041] The preparation method of the diamondene-reinforced and toughened PA6 modified plastic comprises the following steps: 1) Weigh and mix the raw materials in proportion to obtain a mixture; 2) Melt extrusion: send the mixture into a twin-screw extruder Carry out melt extrusion,...

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Abstract

A diamondene reinforced and toughened PA6 modified plastic belongs to the technical field of polymer material modification, and is made of the following raw materials in parts by weight: 85-95 parts of nylon slices, 5-15 parts of nanodiamondene, and 0.5-2.5 parts of additives share. The preparation method comprises the following steps: 1) Weighing and mixing various raw materials in proportion to obtain a mixture; 2) Melting extrusion: sending the mixture into a twin-screw extruder for melt extrusion, drawing, water cooling, and drying. The obtained product; the PA6 prepared by the present invention not only has high strength and toughness, but also has thermal stability, wear resistance, flame retardancy, good self-lubricating property, good molding and processing performance, and is more environmentally friendly. features.

Description

technical field [0001] The invention belongs to the technical field of polymer material modification, relates to the technical field of modified engineering plastics, in particular to a diamondene reinforced and toughened PA6 modified plastic and a preparation method thereof. Background technique [0002] As the largest variety among the five major engineering plastics, nylon (PA) is widely used in machinery, electronics, electrical appliances, transportation and textile industries, especially the rapid development of automobile and other industries, providing nylon with a broader market. However, some characteristics and defects of PA itself, such as low strength and poor surface quality, may release harmful substances in processing and high-temperature and high-humidity environments, and corrode products, etc., hindering its development and application. Therefore, the modification of nylon has become the development trend of the engineering plastics industry. Especially r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08K9/04C08K3/04C08K5/098C08K5/09C01B32/28B82Y40/00
CPCC01P2004/64C08K3/04C08K5/09C08K5/098C08K9/04C08K2201/011C08L2201/02C08L2201/08C08L77/00
Inventor 郭留希赵清国刘君丽刘永奇杨晋中张建华武艳强邵静茹穆小娜
Owner ZHENGZHOU ARTIFICIAL DIAMOND & PROD ENG TECH RES CENT