Modified thermosetting ultrahigh-molecular epoxy resin marine board

A technology of epoxy resin and ultra-high polymer, which is applied in the field of modified polymer sheet manufacturing, can solve the problems that the resin content cannot be accurately controlled, the strength requirements cannot be met, and the quality cannot be guaranteed, so as to avoid linear expansion coefficient and uniform density , the effect of excellent mechanical properties

Inactive Publication Date: 2013-03-06
严小异
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The epoxy resin hand lay-up process currently used for composite materials, due to the backward process, the resin content cannot be accurately controlled, and the quality cannot be guaranteed. In addition, it uses ordinary epoxy resin and curing crosslinking agent, which cannot meet the requirements of replacing metal materials. strength requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: A modified thermosetting ultra-high molecular epoxy resin marine board, which is characterized by containing 12-18% by weight of modified thermosetting epoxy resin and 4-6% by weight of hyperbranched curing crosslinking agent, 60-86% by weight of fibrous reinforcing material, 5.5-8.5% by weight of powder reinforcing material additives.

[0014] The modified thermosetting epoxy resin contains 14-16% (14% or 14.8% or 15% or 15.5% or 16%) by weight of bisphenol A epoxy resin and 0.15-0.25% (0.15% or 0.2% or 0.25%) by weight of polyether modified methyltetrahydrophthalic anhydride toughening agent; the 14-16% by weight of bisphenol A epoxy resin is composed of E-51 epoxy resin and E-44 ring Oxygen resin is prepared in a ratio of 2:1; the hyperbranched imidazole amidation derivative curing agent is 15-20% (15% or 16% or 17% or 18% or 19%) of trimethylolpropane 20%), 2,2-dimethylolpropionic acid 15-21% (15% or 16% or 17% or 18% or 19% or 20% or 21%), dioxane 13-17% (...

Embodiment 2

[0018] Example 2: On the basis of Example 1, it contains 15% by weight of modified thermosetting epoxy resin, 5% by weight of hyperbranched curing crosslinking agent, 73% by weight of fibrous reinforcing material, 7% by weight Additives for powder reinforcement materials.

Embodiment 3

[0019] Example 3: On the basis of Example 1 or 2, a method for preparing a modified thermosetting ultra-high molecular epoxy resin marine board, combining 12-18% by weight of modified thermosetting epoxy resin and 5.5-8.5% by weight Parts of powder reinforcement material additives are mixed and ground into a uniform slurry, and 4-6% weight parts of hyperbranched curing crosslinking agent is added in proportion to stir evenly, and then 60-86% weight parts of fiber reinforcement material is infiltrated. Thick paste or paste prepreg with a viscosity of 50000-100000Pa.S, then place the prepreg in the heated mold, apply pressure above 1000KN after exhausting, and control the temperature at 165-175℃, -6 minutes secondary curing to obtain the finished high-strength thermosetting polymer matrix composite material. The modified thermosetting ultra-high molecular epoxy resin marine board is made of high-strength composite materials through pultrusion, molding, lamination, transfer moldin...

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PUM

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Abstract

The invention relates to a modified thermosetting ultrahigh-molecular epoxy resin marine board which is good in corrosion resistance and weather resistance and high in strength, wherein the performance of the marine board can conform to that of low-carbon steel (such as strength requirement on a steel workpiece Q235 specified by GB / T700-1988Q235). The modified thermosetting ultrahigh-molecular epoxy resin marine board comprises the following components by weight percent: 12-18% of modified thermosetting epoxy resin, 4-6% of hyperbranched solidifying cross-linking agent, 60-86% of fibrous reinforcing materials and 5.5-8.5% of powdered reinforcing material additive. The modified thermosetting ultrahigh-molecular epoxy resin marine board has the advantages that a molecular structure not only contains a large quantity of flexible chain sections to buffer brittleness and hardness of epoxy resin, but also contains an end-capped epoxy group which can participate in curing reaction, and the toughening effect is obvious, so that not only is the bonding strength of a system improved, but also the compression strength and the shearing strength of the materials are improved greatly.

Description

Technical field [0001] The invention relates to a modified thermosetting ultra-high molecular epoxy resin marine plate with good corrosion resistance, good weather resistance, high strength, and performance up to low carbon steel (such as the strength requirements of Q235 steel workpieces specified in GB / T700-1988 Q235) , Belongs to the field of modified polymer sheet manufacturing. Background technique [0002] As a new type of material, composite material has good insulation and strength, and can be made into various shapes according to different requirements and different processes and molds. With the progress and development of science and technology, the demand for composite materials is increasing. In order to achieve the dual characteristics of insulation and high strength, the existing composite materials and some special composite materials are obtained by compounding metal and nylon plastics (so-called composite metal materials). However, due to the line between metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08L71/00C08G59/62C08K13/04C08K7/14C08K7/06C08K7/10C08K7/24C08K3/04C08K3/34
Inventor 高原
Owner 严小异
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