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Plant fiber reinforced composite material based on methacrylate crosslinked soybean oil-based resin and preparation method thereof

A soybean oil-based resin, methacrylate technology, applied in the direction of coating, can solve the problems of poor heat resistance, high viscosity, low cross-linking degree of epoxy soybean oil acrylate, etc., and achieve the effect of excellent mechanical properties

Active Publication Date: 2019-06-25
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the deficiencies in the prior art, to provide a plant fiber reinforced composite material based on methacrylate crosslinked soybean oil-based resin and its preparation method, to solve the problem of low crosslinking degree of epoxy soybean oil acrylate and low temperature problems such as high viscosity, poor heat resistance, and environmental pollution caused by the release of toxic substances during the preparation process; the prepared plant fiber reinforced methacrylate soybean oil-based resin composite material is environmentally friendly, and has good tensile strength, bending Strength and flexural modulus, comparable impact strength to styrene-crosslinked soybean oil-based resin composites

Method used

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  • Plant fiber reinforced composite material based on methacrylate crosslinked soybean oil-based resin and preparation method thereof
  • Plant fiber reinforced composite material based on methacrylate crosslinked soybean oil-based resin and preparation method thereof
  • Plant fiber reinforced composite material based on methacrylate crosslinked soybean oil-based resin and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Vegetable Fiber / Methacrylate Soybean Oil-Based Resin Composites:

[0023] The preparation process of soybean oil-based resin is as follows: soybean oil derivatives (70g) and cross-linking agent (30g) are placed in a round bottom flask, and after stirring with a magnetic stirrer at room temperature for 20min, the soybean oil-based resin mixture is obtained; The soybean oil derivative is AESO; the cross-linking agent is TMPTMA; the initiator is TBPB.

[0024] Composite material preparation method: Weigh 76.4g of soybean oil-based resin mixture and 1.6g of TBPB, mix and stir for 1min with a glass rod. Take the dried plant fibers out of the oven, wrap them in plastic airtight bags, and when they are cooled to room temperature, stack 5-9 pieces of fiber mats (76.4g) in the orthogonal direction to form a fiber slab. Soybean oil-based resin and additives are evenly coated on both surfaces of the fiber slab, then moved to a steel mold and preheated for 5 minutes at 70°C and a ...

Embodiment 2

[0037] Vegetable Fiber / Methacrylate Soybean Oil-Based Resin Composites:

[0038] The preparation process of soybean oil-based resin is as follows: soybean oil derivatives (60g) and cross-linking agent (40g) are placed in a round bottom flask, and after stirring with a magnetic stirrer at room temperature for 30min, the soybean oil-based resin mixture is obtained; The soybean oil derivative is AESO; the cross-linking agent is TMPTMA; the initiator is TBPB.

[0039] Composite material preparation method: Weigh 80g of soybean oil-based resin mixture and 2.5g of TBPB, mix and stir for 1min with a glass rod. Take the dried plant fiber out of the oven, wrap it in a plastic airtight bag, and when it cools down to room temperature, stack 5-9 pieces of fiber mats (90g) in the orthogonal direction to form a fiber slab. Soybean oil-based resin and additives are evenly coated on both surfaces of the fiber slab, then moved to a steel mold and preheated at 70°C and 7MPa pressure for 4 minu...

Embodiment 3

[0041] Vegetable Fiber / Methacrylate Soybean Oil-Based Resin Composites:

[0042] The preparation process of soybean oil-based resin is as follows: soybean oil derivatives (80g) and cross-linking agent (20g) are placed in a round bottom flask, and after stirring with a magnetic stirrer at room temperature for 30min, the soybean oil-based resin mixture is obtained; The soybean oil derivative is AESO; the cross-linking agent is TMPTMA; the initiator is TBPB.

[0043] Composite material preparation method: Weigh 100g of soybean oil-based resin mixture and 3g of TBPB, mix and stir for 1min with a glass rod. Take the dried plant fiber out of the oven, wrap it in a plastic sealed bag, and when it cools down to room temperature, stack and arrange 5-9 pieces of fiber mats (80g) in the orthogonal direction to form a fiber slab. Soybean oil-based resin and additives are evenly coated on both surfaces of the fiber slab, then moved to a steel mold and preheated for 5 minutes at 70°C and a...

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Abstract

The invention discloses a plant fiber reinforced composite material based on methacrylate crosslinked soybean oil-based resin and a preparation method thereof. Trimethylolpropane trimethacrylate and epoxidized soybean oil are blended for preparing soybean oil-based resin, and then plant fibers, soybean oil-based resin and an initiator are subjected to hot-press forming, so that the plant fiber reinforced composite material based on the methacrylate crosslinked soybean oil-based resin is obtained. The prepared plant fiber reinforced composite material based on the methacrylate crosslinked soybean oil-based resin is environment-friendly and has good tensile strength, bending strength and bending modulus, and soybean oil-based resin composite material crosslinked with styrene has equivalent impact strength.

Description

technical field [0001] The invention belongs to the technical field of natural plant fiber-reinforced resin composite materials, and in particular relates to a plant fiber-reinforced composite material based on methacrylate crosslinked soybean oil-based resin and a preparation method thereof. Background technique [0002] In natural plant fiber reinforced polymer composites, the most commonly used thermosetting resins are epoxy resins, phenolic resins and unsaturated polyester resins. Generally, these thermosetting resins have good mechanical properties, chemical resistance and process performance, but the environmental and air pollution problems caused by the volatilization of toxic substances (such as formaldehyde, styrene, etc.) during use have caused great focus on. In addition, the continuous depletion of petroleum resources and rising prices have forced people to seek and develop new renewable bio-based resins. Acrylate epoxidized soybean oil (AESO) is obtained by re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F289/00C08F222/14C08J7/04C08L51/00
CPCC08F289/00C08J7/042C08J2351/00C08F222/103
Inventor 邱仁辉费铭恩刘文地贾暗明班阳於德美傅文涛范永通
Owner FUJIAN AGRI & FORESTRY UNIV
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