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Solvent-containing high-temperature corrosion-resistant flame-resistant anti-fouling thermoplastic resin

A thermoplastic resin and corrosion-resistant technology, which is applied in the fields of thermoplastic resin synthesis, heat resistance, resin corrosion resistance, and flame-retardant modification. It can solve problems such as bond strength, impact resistance, and sudden temperature change, and achieve good product stability. , good flame retardant properties, the effect of improving high temperature resistance

Inactive Publication Date: 2012-05-23
兰州瑞玛化机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature resistance is 120 ℃ ~ 180 ℃, but its resin is thermosetting resin, and its raw material is unsaturated monocarboxylic acid. It can be cured at room temperature only by adding curing agent and accelerator when using it. The bonding strength of thermosetting resin and matrix material, Impact resistance and rapid temperature change are not as good as thermoplastic resins

Method used

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  • Solvent-containing high-temperature corrosion-resistant flame-resistant anti-fouling thermoplastic resin
  • Solvent-containing high-temperature corrosion-resistant flame-resistant anti-fouling thermoplastic resin
  • Solvent-containing high-temperature corrosion-resistant flame-resistant anti-fouling thermoplastic resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In reactor, add 65% bisphenol A epoxy resin, 35% adipic acid, heating temperature is 75 ℃, then add 0.5% catalyzer (the quality formula of dibenzoyl peroxide, inorganic base, organic amine) The ratio is: 76.57: 5.56: 17.87, the inorganic base is sodium hydroxide, the triethanolamine in the organic amine is 5% by mass of the catalyst), 0.01% hydroquinone; heat up to 110°C, time the reaction for 45 minutes, and cool down , and add 20% butanone to the polymer, stir, take out, and obtain a reddish-brown transparent liquid.

[0045] The performance index of embodiment gained resin:

[0046] Bond strength is 14.7MPa, impact strength is 136.4KJ / m 2 , the elongation at break is 10.2%, the heat distortion temperature is 515°C, the flame retardant performance (GB2408): 45mm, class II, and the corrosion resistance performance is shown in the following table:

[0047] Table 1 is according to the resin corrosion resistance of the present invention gained

[0048]

[0049]

Embodiment 2

[0051] In reactor, add 70% novolac epoxy varnish, 30% adipic acid, heating temperature is 73 ℃, then adds 1.5% catalyzer (the mass proportion of dibenzoyl peroxide, inorganic base, organic amine is : 71.03: 3.62: 25.35, the inorganic base is potassium hydroxide, triethanolamine is the 5.8 mass % of catalyst), 0.02% methyl hydroquinone in the organic amine; Heating is warming up to 105 ℃ ℃, timing reaction 47 minutes, wait The viscosity of the polymer changes, the temperature is lowered, and 25% ethylene glycol butyl ether is added to the polymer, stirred, and taken out to obtain a reddish-brown transparent liquid.

[0052] The performance index of embodiment gained resin:

[0053] Bond strength is 13.5MPa, impact strength is 130.2KJ / m 2 , The elongation at break is 9.5%, and the heat distortion temperature is 564°C.

[0054] Flame retardant performance (GB2408): 37mm, class II, corrosion resistance performance as shown in the table below:

[0055] Table 2 is according to th...

Embodiment 3

[0060] Add 70% epoxy resin (bisphenol A epoxy resin: novolac epoxy=4:6) in reactor, 30% tetrabromophthalic anhydride, heating temperature is 80 ℃, add 1.0% again Catalyst (the mass ratio of dibenzoyl peroxide, inorganic base, and organic amine is: 64.43: 7.29: 28.28, the inorganic base is potassium hydroxide, and triethanolamine is 6.2% by mass of the catalyst in the organic amine), 0.03% para Hydroquinone: heat up to 117° C., time the reaction for 50 minutes, wait for the viscosity of the polymer to change, lower the temperature, add 22% butanone to the polymer, stir, take out, and obtain a reddish-brown transparent liquid.

[0061] The performance index of embodiment gained resin:

[0062] Bond strength is 14.2MPa, impact strength is 132.3KJ / m 2 , The elongation at break is 9.7%, and the heat distortion temperature is 542°C.

[0063] Flame retardant performance (GB2408): 29mm, class II, corrosion resistance performance as shown in the table below:

[0064] Table 3 is acco...

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Abstract

The invention relates to a solvent-containing high-temperature corrosion-resistant flame-resistant anti-fouling thermoplastic resin, which is formed by performing a synthetic reaction of an epoxy resin and a saturated diacid with presence of a catalyst and a polymerization inhibitor (phenols), and being diluted with the solvent, the technology brings in the saturated diacid, the thermoplastic resin prepared according to the invention has performances of good shock resistance, corrosion resistance, high-temperature resistance and the like. Top long-term use temperature of the resin can be 460 degrees centigrade, top short-term use temperature thereof can be 600 degrees centigrade, and top bonding strength thereof can be 12MPa, a resin layer has the anti-fouling performance, and a fouling factor thereof is 1 / 50 of a stainless steel. With so many high-temperature resistant groups and phenols groups in the resin, the resin has good flame-resistant performance, a flame retardant index achieves the secondary level; the synthesis technology is simple and environmental-friendly, there is no the three wastes (waste gas, waste water and industrial residue), and products have good stability.

Description

technical field [0001] The invention relates to the field of thermoplastic resin synthesis, in particular to the fields of corrosion resistance, heat resistance and flame retardant modification of resins. Background technique [0002] Thermoplastic resins on the market are generally used for molding processing, injection molding, etc., and a small part of the resins are used in anti-corrosion. The resins used in anti-corrosion have poor performance in terms of heat resistance and corrosion resistance, while thermosetting The adhesion and impact resistance of the resin are not as good as thermoplastic resins, so it is necessary to produce a thermoplastic resin with excellent heat resistance and corrosion resistance. [0003] CN200510024161.5 discloses a method for preparing an impregnating resin for electrical use, which includes gradually heating ethylene glycol, phthalic anhydride, adipic acid, and maleic anhydride to 190°C-200°C to prepare polyester Resin, then mix bisphe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/42C08L63/00
Inventor 陈光平王美玲李洪发曹晓峰王婷婷肖金来谢永恒
Owner 兰州瑞玛化机有限公司
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