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A nylon and PA66 technology, which is applied in the field of polymer materials, can solve the problems of easy flow, overflow and flash of PA66, and achieve the effect of accelerating the crystallization process, improving the flow and reducing the generation of flash.
Active Publication Date: 2021-11-02
江苏博云塑业股份有限公司
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Problems solved by technology
[0006] In order to solve the problems of the prior art, the embodiment of the present invention provides a new nylon 66 material to overcome the prob
Method used
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[0056] According to the nylon 66 material, the embodiment of the present invention also provides a method of preparing a nylon 66 material, reference figure 1 As shown, the method includes the following steps:
[0057] S1: Prepare feedstocks according to the weight percentage:
[0058] PA66 27% ~ 86.7%, the first flying inhibitor 0.1% ~ 1%, the second flying inhibitor 3% ~ 10%, glass fibers 10% ~ 1%, antioxidant 0.1% ~ 1%, lubricant 0.1% ~ 1%;
[0059] S2: The above PA66, the first flying edge inhibitor, the second flying suppressant, the antioxidant, and the lubricant are mixed by the mixing machine, and the blending mixture is added to the twin-screw extruder;
[0060] S3: The glass fiber is added to the side feed, and the extruded strip is cooled through the water tank, wherein the cooling water temperature is 15 ° C to 20 ° C;
[0061] S4: Dry after granulation by the particulating machine, to obtain a nylon 66 material, wherein the particularging speed is 500 rpm to 700 rpm. ...
Example Embodiment
[0094] Example 1
[0095] One nylon 66 material, a weight percentage, which components comprise:
[0096] PA66 66.4%, PA6T / 66 (second burr inhibitor) 3%, 30% glass fiber, 0.3% antioxidant, 0.3% lubricant, wherein the sulfuric acid relative viscosity of PA66 was 2.4.
Example Embodiment
[0097] Example 2
[0098] One nylon 66 material, a weight percentage, which components comprise:
[0099] PA66 64.4%, PA6T / 66 (second burr inhibitor) 5%, 30% glass fiber, 0.3% antioxidant, 0.3% lubricant, wherein the sulfuric acid relative viscosity of PA66 was 2.4.
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Abstract
The invention discloses a nylon 66 material and a preparation method thereof, and belongs to the technical field of high polymer materials. The nylon 66 material comprises the following components in percentage by weight: 27%-86.7% of PA66, 0.1%-1% of a first flash inhibitor, 3%-10% of a second flash inhibitor, 10%-60% of glass fibers, 0.1%-1% of an antioxidant and 0.1%-1% of a lubricant, and the second flash inhibitor is aromatic polyamide. Aromatic polyamide is used as the second flash inhibitor and can be mutually entangled with PA66 molecular chains by utilizing the characteristics that molecules of the aromatic polyamide have rigid benzene rings, the crystallization temperature is relatively high, and the compatibility with PA66 is good, so that the aromatic polyamide can flow well, can be quickly formed, and greatly inhibits the generation of flashes. Meanwhile, the first flash inhibitor and the second flash inhibitor can generate a synergistic effect to further reduce the generation of flashes.
Description
technical field [0001] The invention relates to the technical field of polymer materials, in particular to a nylon 66 material and a preparation method thereof. Background technique [0002] Polyamide (PA, nylon) is an assembly of high polymers containing amide groups in the repeating unit of the macromolecular main chain. Because polyamide has good comprehensive properties, including mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubricating properties, low friction coefficient, certain flame retardancy and easy processing, it has become a It is a type of polymer material with the widest application and variety in the engineering plastics industry. There are many varieties of PA, including PA6, PA66, PA11, PA12, PA46, PA610, PA612, PA1010, semi-aromatic nylon PA6T and special nylon. [0003] Polyamide 66 or Nylon 66 (PA66), which is polycondensed from adipic acid and hexamethylenediamine, is a translucent or opaque milky white or yel...
Claims
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Application Information
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