Unsaturated resin or vinyl resin composition and application thereof to composite material

A vinyl resin and unsaturated technology, which is applied in the field of composite material preparation and resin synthesis, can solve the problems of harsh and complex production process, environmental protection and performance problems, poor toughness of composite materials, etc., and achieve high viscosity adjustability and low product cost Adjustable, excellent weather resistance effect

Inactive Publication Date: 2020-08-07
南京聚发新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Although unsaturated polyester resin and vinyl resin are widely used in the production of FRP composite materials, there are still environmental protection and performance problems in the production and use of these two types of resins.
The main manifestations are: (1) The production process is harsh and complex, and the energy consumption is high; (2) To reduce the viscosity, a large amount of styrene must be used as a diluent, and styrene has great risks to the environment and the health of operators; (3) ) composite materials have poor toughness during use, short life, and limited application fields
In the existing technology, there is no related technology that can solve the above three problems at the same time, only by adding related additives to the resin to reduce the escape of styrene and improve the flexibility of composite products

Method used

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  • Unsaturated resin or vinyl resin composition and application thereof to composite material
  • Unsaturated resin or vinyl resin composition and application thereof to composite material
  • Unsaturated resin or vinyl resin composition and application thereof to composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Add 100 kg of maleic anhydride hydroxyl-terminated polyester (Nantong Matech Company, MT-2408, f=2, R and R1 are alkanes with 4 carbon atoms, n=6, hydroxyl value=140mgKOH / g) to the reactor and heated up to 140°C. After the temperature stabilized, immediately add 25 kg of maleic anhydride and keep it warm for 0.5h to obtain an oligomer with a double bond at the end: maleic anhydride-terminated unsaturated polyester diol, The general structural formula is as follows:

[0035]

[0036] According to the following formula for resin configuration:

[0037] Oligomers with double bonds at the end: 100 kg

[0038] Styrene 60 kg

[0039] Benzoyl peroxide 0.8kg

[0040] tert-butyl perbenzoate 1.5 kg

[0041] Cobalt naphthenate 0.5 kg

[0042] Stearic acid 1 kg

[0043] Zinc stearate 1 kg

[0044] Pour the configured resin glue into the resin tank of the pultrusion equipment, and through the pultrusion process, the glass fiber will be filled with resin through the resin t...

Embodiment 2

[0046]50 kg of polyoxyethylene ether trihydric alcohols and tetrahydric alcohols with a hydroxyl value of 560 mgKOH / g, a saturated polyol with a functionality of f=3.5 and 50 kg of unsaturated polyols with a hydroxyl value of 112 mgKOH / g Add polybutadiene into the reaction kettle and raise the temperature to 90°C. After the temperature stabilizes, add 100 kg of methyltetrahydrophthalic anhydride immediately and keep it warm for 2 hours to obtain an oligomer with a double bond at the end, and proceed according to the following formula Resin configuration:

[0047] Oligomers with double bonds at the end: 100 kg

[0048] Styrene 50 kg

[0049] Polypropylene glycol diacrylate 150 kg

[0050] 6 kg methyl ethyl ketone peroxide

[0051] Cobalt isooctanoate 0.2 kg

[0052] Pour the configured resin glue into the closed resin tank of the vacuum infusion equipment, and through the resin vacuum introduction process, the resin is pumped through the vacuum pump and the closed plastic t...

Embodiment 3

[0054] Add 100 kg of saturated polyols with a hydroxyl value of 400 mgKOH / g and a functionality f=3 composed of polypropylene oxide ether diols, triols and tetraols into the reactor, and keep the ambient temperature;

[0055] Mix 174 kg of toluene diisocyanate (2000 mol of isocyanate groups) and 116 kg of hydroxyethyl acrylate (1000 mol of hydroxyl groups) and heat up to 60°C for 3 hours to obtain an unsaturated urethane-type blocking agent;

[0056] Mix 100 kg of the above-mentioned saturated polyol with the above-mentioned 207 kg of end-capping agent at ambient temperature and react at this temperature for 4 hours to obtain an oligomer with a double bond at the end, and configure the resin according to the following formula:

[0057] Oligomers with double bonds at the end: 100 kg

[0058] Hydroxypropyl methacrylate 50 kg

[0059] Tripropylene glycol diacrylate 50 kg

[0060] Azobisisobutyronitrile 0.2 kg

[0061] Di-tert-butyl peroxide 0.8 kg

[0062] Organic tin 0.2 kg ...

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Abstract

The invention discloses an unsaturated resin or vinyl resin composition and application thereof to a composite material, and belongs to the field of resin synthesis and composite material preparation.The preparation method comprises the following five steps: (1) respectively adding a certain parts by weight of saturated polyhydric alcohol and unsaturated polyhydric alcohol into a flask, and maintaining a certain temperature as required; (2) adding an unsaturated end-capping reagent, and carrying out a reaction for 0-4 h at an environment temperature of -140 DEG C to obtain an oligomer containing double bonds at the tail end of a molecular chain; (3) adding a certain parts by weight of auxiliaries such as a diluent, an initiator, a catalyst and a release agent according to the requirementsof an application process, uniformly stirring the materials, and putting the mixture into a glue tank of production equipment for later use; (4) preparing a resin/fiber composite material by adoptingequipment matched with the process according to a predetermined process; (5) demoulding the finish product. The prepared resin sizing material has the advantages of being wide in application process,long in operable time, good in mechanical property, high in flexibility of the prepared composite material and the like.

Description

technical field [0001] The invention belongs to the fields of resin synthesis and composite material preparation, in particular to an unsaturated resin or vinyl resin composition and its application in composite materials. Background technique [0002] Although unsaturated polyester resin and vinyl resin are widely used in the production of FRP composite materials, there are still environmental protection and performance problems in the production and use of these two types of resins. The main manifestations are: (1) The production process is harsh and complex, and the energy consumption is high; (2) To reduce the viscosity, a large amount of styrene must be used as a diluent, and styrene has great risks to the environment and the health of operators; (3) ) The composite material made of it has poor toughness during use, short life, and limited application fields. In the prior art, there is no related technology that can solve the above three problems at the same time. Only...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F283/01C08F212/08C08F283/00C08F220/20C08F222/20C08F226/10C08F222/14C08L67/06C08L75/14C08K7/14C08K7/10C08K7/06
CPCC08F283/008C08F283/01C08K7/06C08K7/10C08K7/14C08F212/08C08L67/06C08F220/20C08F222/102C08F226/10C08L75/14
Inventor 鞠明杰成源邓军发
Owner 南京聚发新材料有限公司
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