Process for preparing copolymerized nylon 613 or 1013
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A nylon and copolymer technology, applied in the field of preparation of copolymer nylon 613 or 1013
Inactive Publication Date: 2002-06-12
BALING PETRO CHEM CO LTD SINOPEC
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At present, there is no research and production of this product at home and abroad.
Method used
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Embodiment 1
[0021] Add 585.33g of hexamethylenediamine, 996g of tridecanedioic acid and 1620g of ethanol solution into a three-neck flask for reflux reaction for 2 hours, cool to room temperature, pour into a beaker to crystallize, wash with ethanol, and dry to obtain 613 salt;
[0022] Add 1500g of dry 613 salt, 132g of water, 5g of adipic acid, and 4g of DMP into the reaction kettle, raise the temperature to 230°C, and react for 10 hours under a pressure of 0.4MPa. hour, pressurize and discharge, cool, cast, pelletize, and dry to obtain the product. The performance indicators of the product are shown in Table 2.
Embodiment 2～3
[0024] Change reaction temperature, wherein the reaction temperature of embodiment 2 is 250 ℃, the reaction temperature of embodiment 3 is 270 ℃, other conditions are the same as embodiment 1. The performance indicators of the product are shown in Table 2.
Embodiment 4～5
[0026] Change reaction pressure, wherein the reaction pressure of embodiment 4 is 1.5Mpa, the reaction pressure of embodiment 5 is 2.5Mpa, other conditions are with embodiment 1. The performance indicators of the product are shown in Table 2.
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Abstract
A process for preparing copolymer nylon "613" or "1013" includes such steps as dissolving hexadiamine or decanediamine and brazilic acid in alcohol, neutralizing reaction at 40-120 deg.C while stirring for 2-6 hr, educing out salt, filtering, washing with alcohol, drying to obtain their salts, loading them along with molecular weight regulator, trigger and antiageing agent into a polymerizing reactor, reaction at 210-290 deg.C and 0.4-2.5 MPa for 2-10 hr, and vacuum reaction at 0--0.05 MPa for 0.5-2 hr. The resultant products features higher flexibility and dissolving resistance, and low cost.
Description
technical field [0001] The present invention relates to the preparation method of copolymer nylon 613 or 1013. Background technique [0002] Nylon 613 or 1013 has excellent performance, softness, transparency, low water absorption rate and hygroscopicity, good fluidity, easy processing, and small shrinkage rate. It can be used in plastic products, films, fibers and oil pipelines. It can replace nylon 11, 12, 612 in many aspects, and can be widely used in automobile, electrical and electronic industries, etc. In industries such as automobile paint, it is used as oil pipeline or hose, pneumatic or hydraulic brake device, etc. It is also used for sheathing of cables and wires, components of electronic audio and video equipment, noiseless gears, etc. It is used as a gun stock, ammunition box, etc. in military industry. It is also widely used in aerospace industry. In terms of sporting goods, it can be made into ski and mountaineering boots and supplies. At present, there is ...
Claims
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Application Information
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