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High-toughness transparent resin and preparation method thereof

A transparent resin, high toughness technology, applied in chemical instruments and methods, preparation of organic compounds, preparation of urethane derivatives, etc., can solve the problems of low impact resistance, poor toughness, etc., achieve long service life, improve transparency , the effect of good transparency

Active Publication Date: 2022-01-21
东阳市福雕文化创意有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyamide has excellent properties such as toughness, wear resistance, impact resistance, fatigue resistance, corrosion resistance, oil resistance, solvent resistance, non-toxicity, good self-extinguishing property, and good electronic insulation. , engineering plastics with good self-lubricating properties are widely used in industries such as automobiles, electronics, and mechanical equipment, and are currently research hotspots; however, nylon has poor toughness due to its high polarity and high crystallinity, especially Nylon 6 has low impact resistance in dry state and low temperature, and has obvious notch sensitivity

Method used

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  • High-toughness transparent resin and preparation method thereof
  • High-toughness transparent resin and preparation method thereof
  • High-toughness transparent resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The preparation method of high-toughness transparent resin comprises the following steps:

[0039] S1: In parts by weight, 15 parts by weight of (2-methallyloxy)-acetic acid, 28 parts by weight of 3-protected amino acid-cyclohexanecarboxylic acid and 220 parts by weight of triethylamine under the protection of nitrogen, React at 70°C for 1.5h to obtain a modified 3-protected amino acid-cyclohexanecarboxylic acid; its structural formula is:

[0040]

[0041] S2: Mix 24 parts by weight of modified 3-protected amino acid-cyclohexanecarboxylic acid, 45 parts by weight of trimethylhexamethylenediamine and 10 parts by weight of caprolactam to obtain mixture A;

[0042]S3: Put the mixture A in the reaction kettle, seal it, replace it with nitrogen, discharge the air in the kettle, fill it with nitrogen to 0.1MPa, raise the temperature to 220°C, and carry out the reaction under the condition of 0.9MPa for 3 hours to obtain the mixture B ;

[0043] S4: Raise the temperature...

Embodiment 2

[0045] The preparation method of high-toughness transparent resin comprises the following steps:

[0046] S1: In parts by weight, 20 parts by weight of (2-methallyloxy)-acetic acid, 35 parts by weight of 3-protected amino acid-cyclohexanecarboxylic acid and 300 parts by weight of triethylamine under the protection of nitrogen, React at 60°C for 2 hours to obtain a modified 3-protected amino acid-cyclohexanecarboxylic acid;

[0047] S2: Mix 35 parts by weight of modified 3-protected amino acid-cyclohexanecarboxylic acid, 55 parts by weight of hexamethylenediamine and 3 parts by weight of caprolactam to obtain mixture A;

[0048] Steps S3 and S4 are the same as in Embodiment 1.

Embodiment 3

[0050] The preparation method of high-toughness transparent resin comprises the following steps:

[0051] Step S1 is the same as embodiment 2;

[0052] S2: In parts by weight, mix 30 parts by weight of modified 3-protected amino acid-cyclohexanecarboxylic acid, 50 parts by weight of trimethylhexamethylenediamine and 8 parts by weight of caprolactam to obtain mixture A;

[0053] Steps S3 and S4 are the same as in Embodiment 2.

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Abstract

The invention discloses high-toughness transparent resin and a preparation method thereof. The preparation method comprises the following steps: reacting (2-methyl allyloxy)-acetic acid, 3-protected amino acid-cyclohexanecarboxylic acid and organic alkali in the presence of nitrogen to obtain modified 3-protected amino acid-cyclohexanecarboxylic acid; mixing modified 3-protected amino acid-cyclohexane carboxylic acid, an amino-terminated monomer and lactam to obtain a mixture A; putting the mixture A into a reaction kettle, sealing, carrying out nitrogen replacement, exhausting air in the kettle, filling nitrogen, and reacting under the conditions that the temperature is 180-250 DEG C and the pressure is 0.6-1.5 MPa to obtain a mixture B; carrying out condensation polymerization on the mixture B, vacuumizing, opening a discharge valve, granulating the material through a belt injection head, a cold water tank and a granulator, and drying to obtain the high-toughness transparent resin. The high-toughness transparent resin has the advantages of excellent light transmittance, low haze, good transparency, excellent solvent resistance and high toughness.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a high-toughness transparent resin and a preparation method thereof. Background technique [0002] Transparent resin occupies an important position in the plastic industry and is widely used in decorative sheets, plates, twisted films, profiled materials and other fields. Therefore, people are devoting themselves to research on improving the toughness of plastics and maintaining their high transparency. Polyvinyl chloride (PVC) is the second largest plastic variety after polyethylene in global production. In order to further expand its application field, a variety of PVC transparent modifiers with excellent performance have been developed. Polyamide has excellent properties such as toughness, wear resistance, impact resistance, fatigue resistance, corrosion resistance, oil resistance, solvent resistance, non-toxicity, good self-extinguishing property, and ...

Claims

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Application Information

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IPC IPC(8): C08G69/36C07C269/06C07C271/24
CPCC08G69/36C07C269/06C07C271/24Y02P20/55
Inventor 吕晓阳肖思群叶坚洲
Owner 东阳市福雕文化创意有限公司