Anti-aging plastic material and preparation method thereof

A plastic material and anti-aging technology, which is applied in the field of anti-aging plastic materials and its preparation, can solve the problems of unsatisfactory performance, low bending strength and hardness, etc.

Inactive Publication Date: 2021-05-18
纪道红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its bending strength and hardness are not high enough to meet the requirements of the existing market for materials.

Method used

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  • Anti-aging plastic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A preparation method of an anti-aging plastic material, characterized in that it comprises the steps of:

[0028] Step S1, preparation of copolymer: 5-allyl-3-methoxy methyl salicylate, 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] Ethyl 2-methacrylate, 2-acrylamido-2-methylpropanesulfonic acid, acrylonitrile, triflumethric acid, and initiator are added to the high boiling point solvent, and stirred at 65°C in an inert gas atmosphere reacted for 4 hours, then precipitated in water, washed the precipitated polymer three times with ethanol, and finally placed in a vacuum drying oven at 80°C to dry to constant weight to obtain a copolymer;

[0029] Step S2, preparation of polycondensate: add benzomelamine, 2,5-bis(1,2,4-triazol-1-yl) terephthalic acid and catalyst to N,N-dimethyl In base formamide; evacuated and filled with high-purity nitrogen to normal pressure, as a protective gas, stirred at 210°C for 1 hour, then continued for 4 hours at a constant temperature of 230°...

Embodiment 2

[0036] A preparation method of an anti-aging plastic material, characterized in that it comprises the steps of:

[0037] Step S1, preparation of copolymer: 5-allyl-3-methoxy methyl salicylate, 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] Ethyl 2-methacrylate, 2-acrylamido-2-methylpropanesulfonic acid, acrylonitrile, triflumethic acid, and initiator are added to the high boiling point solvent, and stirred at 67°C in an inert gas atmosphere After reacting for 4.5 hours, it was precipitated in water, and the precipitated polymer was washed 4 times with ethanol, and finally placed in a vacuum drying oven at 83°C and dried to constant weight to obtain a copolymer;

[0038] Step S2, preparation of polycondensate: add benzomelamine, 2,5-bis(1,2,4-triazol-1-yl) terephthalic acid and catalyst to N,N-dimethyl In base formamide; evacuated and filled with high-purity nitrogen to normal pressure, as a protective gas, stirred at 215°C for 1.2 hours, then continued at 232°C and constant pre...

Embodiment 3

[0045] A preparation method of an anti-aging plastic material, characterized in that it comprises the steps of:

[0046] Step S1, preparation of copolymer: 5-allyl-3-methoxy methyl salicylate, 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl] Ethyl 2-methacrylate, 2-acrylamido-2-methylpropanesulfonic acid, acrylonitrile, triflumethic acid, and initiator are added to the high boiling point solvent, and stirred at 70°C in an inert gas atmosphere React for 5 hours, then precipitate in water, wash the precipitated polymer with ethanol for 5 times, and finally place it in a vacuum drying oven at 85°C to dry to constant weight to obtain a copolymer;

[0047] Step S2, preparation of polycondensate: add benzomelamine, 2,5-bis(1,2,4-triazol-1-yl) terephthalic acid and catalyst to N,N-dimethyl In base formamide; evacuated and filled with high-purity nitrogen to normal pressure, as a protective gas, stirred at 220°C for 1.5 hours, then continued at 235°C and constant pressure of 2.2MPa for 5...

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Abstract

The invention discloses a preparation method of an anti-aging plastic material. The preparation method is characterized by comprising the following steps: step S1, preparing 5-allyl-3-methoxysalicylic acid methyl ester / 2-[3-(2H-benzotriazol-2-yl)-4-hydroxyphenyl]ethyl methacrylate / 2-acrylamido-2-methylpropanesulfonic acid / acrylonitrile / lambda-cyhalothric acid copolymer; step S2, preparing a benzoguanamine / 2,5-bis(1,2,4-triazol-1-yl)terephthalic acid polycondensation polymer; and step S3, forming the plastic material. The invention also provides the anti-aging plastic material prepared according to the preparation method of the anti-aging plastic material. The anti-aging plastic material provided by the invention is good in comprehensive performance, good in performance stability and excellent in anti-aging performance, weather resistance and mechanical performance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an anti-aging plastic material and a preparation method thereof. Background technique [0002] In recent years, with the continuous development of science and technology and economy, daily necessities made of plastics have played an increasingly important role in daily life. Plastic is a polymer compound made of a monomer as a raw material through addition polymerization or polycondensation reaction. This material can freely change its composition and shape. It is composed of synthetic resin and filler, plasticizer, stabilizer, lubricant, color ingredients and other additives. Due to its light weight, non-corrosion, good insulation, easy processing, and stable processing dimensions, plastics are widely used in many fields such as civil engineering, transportation, port and shipping, chemical industry, and new energy. [0003] In actual use, traditional plastic materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L33/20C08L77/06C08L79/04C08K7/06C08K3/32
CPCC08K2201/011C08L33/20C08L77/06C08L2201/02C08L2201/08C08L2205/03C08L2205/16C08L79/04C08K7/06C08K3/32
Inventor 纪道红
Owner 纪道红
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