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Shock-proof pressure-tight unsaturated polyester resin and uses thereof

A polyester resin, unsaturated technology, used in the field of shock-resistant and pressure-resistant resins, can solve the problems of unsatisfactory compression mechanical properties, insufficient pressure resistance, high material cost, etc., and achieve superior bonding strength, high toughness, and high elongation. Effect

Active Publication Date: 2011-06-01
SWANCOR ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the overall performance of vinyl ester unsaturated resin is excellent, some aspects of performance, such as compressive mechanical properties, cannot meet the special requirements of some products.
For example, the application of high-speed rail vehicle rail shock absorption and full-line level adjustment adjustment blocks must meet the physical requirements of super toughness and high compression resistance. Due to the limitation of molecular structure, the physical properties of pure vinyl ester unsaturated resin are relatively brittle and not pressure-resistant, so it must be made Modification, the usual method of toughening is rubber modification. This method requires more complex synthesis technology, high material cost, and it is easy to greatly reduce the rigidity of the resin due to the increase in toughness, which also extends another material defect.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0037] The preparation method of the unsaturated polyester resin of the present invention can be made by directly grafting polyurethane with unsaturated polyester resin on the main chain of the resin by using known synthetic polymerization technology, or by separately manufacturing two kinds of The resin is then mixed with mechanical force.

[0038] Hereinafter, the present invention will be described in detail by taking the method of separately manufacturing two kinds of resins and then using mechanical stirring and mixing as an example.

Embodiment 1

[0039] Example 1: Synthesis of polyurethane (number pu009)

[0040] The weight ratio of this embodiment is as follows:

[0041] a. 4,4-diphenyl methane diisocyanate: 75

[0042] b. Polypropylene glycol (PPG molecular weight 2000): 178

[0043] Polypropylene glycol (PPG molecular weight 400): 17

[0044] c. (1) Reactive diluent Styrene: 200

[0045] (2) Reaction diluent 2-hydroxyethyl acrylate (HEA): 30

[0046] d. (1) Polymerization inhibitor Hydroxy quinone (Hydroxy quinone): 0.05

[0047] (2) Hydroxy quinone (Hydroxy quinone): 0.065

[0048] e. Triamine: 0.03

[0049] Preparation:

[0050] 1. Mix 75 parts of diphenylmethane diisocyanate, 178 parts of polypropylene glycol with a molecular weight of 2000 and 17 parts of polypropylene glycol with a molecular weight of 400, and keep the mixture at a temperature of 50-80°C for 2 to 4 hours;

[0051] 2. Add 200 parts of reactive diluent styrene and 0.05 parts of polymerization inhibitor benzoquinone to the mixture obtained in step 1 to reduce visc...

Embodiment 2

[0055] Example 2: Using simple stirring and mixing method to modify the vinyl ester unsaturated resin to improve the compressive strength, the proportion of weight parts is as follows:

[0056] A. Vinyl ester unsaturated resin SWANCOR 901: 100 parts, SWANCOR 901 is the commercial name of bisphenol A vinyl ester unsaturated polyester resin manufactured by Shangwei Enterprise Co., Ltd., which can be bought on the market.

[0057] B. Polyurethane pu009 (ie, the polyurethane resin synthesized in Example 1): 5-100 parts

[0058] The ratios of vinyl ester unsaturated resin SWANCOR 901 and polyurethane pu009 in the formula are:

[0059] I=901 / pu009=100 / 20, II=901 / pu009=100 / 30, III=901 / pu009=100 / 40, IV=901 / pu009=100 / 50, V=901 / pu009=100 / 60

[0060] The preparation method is as follows:

[0061] 1. Mix and stir formula A and B evenly;

[0062] 2. Add room temperature curing reaction accelerator. The curing reaction accelerator adopts 6% cobalt octanoate salt. The addition ratio is 0.4% of formula A...

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PUM

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Abstract

The invention relates to a seismic and compression withstanding unsaturated polyester resin and the use, which comprises components with the following parts by weight: unsaturated polyester resin / polyamino formate is equal to 100 / 5 to 100; wherein, polyamino formate has double unsaturated bond, which comprises the following components: a. 30 to 200 of isocyanate; b. 20 to 500 of polyol; c. 50 to 500 of reaction type dispersing agent; d. 0 to 0.50 of inhibitor; e. 0 to 0.10 of catalyst. Aiming at seismic and compression withstanding of high-speed railbound vehicle rail and special resin material for adjusting block of whole line level adjusting, the invention has the advantages of high compression-resistance mechanical performance and good processibility.

Description

Technical field [0001] The invention relates to a high-pressure-resistant unsaturated polyester resin, in particular a shock-resistant and pressure-resistant resin made of polyurethane reinforced and toughened unsaturated polyester resin. Background technique [0002] 1. Unsaturated polyester (UPR) resin [0003] Vorlander used maleic acid and ethylene glycol to synthesize unsaturated polyester as early as 1894, and it was Carothers who determined the preparation method and structure of polyester. Flory et al. conducted a detailed study on the reaction kinetics of polyester, and later found that the copolymerization speed of unsaturated polyester and unsaturated diluent is 30 times faster than the self-polymerization speed of unsaturated polyester itself. The diluent used is vinyl acetate. This major discovery has enabled the large-scale application of unsaturated polyester. A typical unsaturated polyester is synthesized from the following materials: 1,2-propylene glycol, phthali...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/06E01B9/68E01B19/00C08L75/04
Inventor 余仕文蔡朝阳陈炳吟
Owner SWANCOR ADVANCED MATERIALS CO LTD