A kind of resin composition and preparation method thereof

A resin composition and uniform mixing technology, applied in the field of composite materials, can solve the problems of high viscosity, long curing time, high production cost, etc., and achieve high decomposition temperature, good thermal stability, and good compatibility

Active Publication Date: 2020-11-10
成都市冠宇复合材料制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention guarantees the flame retardant performance and improves its processing performance, but the viscosity of the composition is high, the curing time is long, and the production cost is high

Method used

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  • A kind of resin composition and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A kind of preparation method of resin composition, described preparation comprises the steps:

[0046] The preparation of A component comprises the following steps:

[0047] Preheat 45kg of bisphenol A type epoxy resin to 55°C, then add 11kg of aliphatic epoxy resin to it, stir evenly, heat up to 120°C, then add 16kg of tricresyl phosphate, 7kg of nano calcium carbonate and 8kg of Nano-titanium dioxide, react for 30 minutes under stirring, cool down to 60°C, add 13 kg of propylene oxide butyl ether, and react for 20 minutes under stirring to obtain component A.

[0048] The preparation of B component comprises the following steps:

[0049] Mix 47kg of primary amine and 37kg of secondary amine evenly, keep stirring for 50min, add 12kg of methanol and 4kg of p-toluenesulfonic acid into it, stir evenly, and react at 60°C for 40min to prepare component B.

[0050] The preparation of resin composition comprises the steps:

[0051] Mix component A and component B uniformly...

Embodiment 2

[0053] A kind of preparation method of resin composition, described preparation comprises the steps:

[0054] The preparation of A component comprises the following steps:

[0055] Preheat 47kg of bisphenol A epoxy resin to 60°C, then add 12kg of aliphatic epoxy resin to it, stir evenly, heat up to 125°C, then add 20kg of tricresyl phosphate, 6kg of nano calcium carbonate and 7kg of Nano-titanium dioxide, react for 35 minutes under stirring, cool down to 62°C, add 8 kg of propylene oxide butyl ether, and react for 25 minutes under stirring to obtain component A.

[0056] The preparation of B component comprises the following steps:

[0057] Mix 49kg of primary amine and 35kg of secondary amine evenly, keep stirring for 52min, add 9kg of methanol and 7kg of p-toluenesulfonic acid into it, stir evenly, and react at 65°C for 45min to prepare component B.

[0058] The preparation of resin composition comprises the steps:

[0059] Mix components A and B evenly at a ratio of 10:2...

Embodiment 3

[0061] A kind of preparation method of resin composition, described preparation comprises the steps:

[0062] The preparation of A component comprises the following steps:

[0063] Preheat 50kg of bisphenol A epoxy resin to 62°C, then add 23kg of aliphatic epoxy resin to it, stir evenly, heat up to 130°C, then add 13kg of tricresyl phosphate, 4kg of nano calcium carbonate and 5kg of Nano-titanium dioxide, react for 40 minutes under stirring, cool down to 64 ° C, add 5 kg of propylene oxide butyl ether, and react for 30 minutes under stirring to obtain component A.

[0064] The preparation of B component comprises the following steps:

[0065] Mix 53kg of primary amine and 33kg of secondary amine evenly, keep stirring for 54min, add 7kg of methanol and 7kg of p-toluenesulfonic acid into it, stir evenly, and react at 70°C for 50min to prepare component B.

[0066] The preparation of resin composition comprises the steps:

[0067] Mix components A and B evenly at a ratio of 10...

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Abstract

The invention discloses a resin composition and a preparation method thereof, and relates to the technical field of resin materials. The resin composition comprises a component A and a component B, wherein the component A comprises the following raw materials in percent by weight: 45 to 55wt percent of bisphenol A type epoxy resin, 11 to 23wt percent of aliphatic epoxy resin, 5 to 13wt percent ofa reactive diluent, 13 to 27wt percent of a fire retardant, and 9 to 15wt percent of a flexibilizer; the component B comprises the following raw materials in percent by weight: 80 to 90wt percent of acuring agent, and 10 to 20wt percent of an accelerant. The resin composition has the effect that the viscosity is low, the curing time can be shortened, and the production efficiency can be improved.The preparation method comprises the following steps: mixing the component A and the component B according to the weight ratio being 10:(2-3); uniformly mixing, and then ensuring that polymerizationreaction is performed for 40 to 60min at 60 to 90 DEG C, so as to obtain the resin composition. The preparation method is simple, and easy to implement.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a resin composition and a preparation method thereof. Background technique [0002] Composite material refers to a material that cannot meet the requirements of use, and needs to be combined with two or more materials to form another material that can meet people's requirements. Fiberglass reinforced plastic (FRP) is also known as GFRP, that is, fiber reinforced plastics, generally refers to glass fiber reinforced unsaturated polyester, epoxy resin and phenolic resin matrix, glass fiber or its products as reinforced plastics, called glass fiber Reinforced plastic, or FRP. FRP is a composite material that has developed rapidly in the past fifty years. [0003] FRP has high hardness and is much lighter than steel. It is used as fuel tanks and pipes on jet aircraft, which can reduce the weight of the aircraft; the miniature oxygen cylinders carried by astronauts on the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08L81/04C08L71/00C08K3/26C08K3/22
CPCC08K2003/2241C08K2003/265C08K2201/011C08L63/00C08L2201/02C08K5/523C08K3/22C08K3/26
Inventor 李雨生
Owner 成都市冠宇复合材料制品有限公司
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