Three-dimensional orthogonal nalgrass composite material plate and molding method thereof

A composite material board and molding method technology, applied in the field of composite material manufacturing, can solve the problems of poor mechanical properties, delamination and ring breakage, poor waterproof performance and corrosion resistance, and achieve low cost, increased interlayer bonding force, excellent tensile effect

Inactive Publication Date: 2016-01-13
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But these particle composite boards have the disadvantage of poor mechanical properties
However, ordinary laminated bamboo-wood composite boards are bonded between layers with adhesives, which are prone to delamination and damage when bent, and have poor waterproof and corrosion resistance.

Method used

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  • Three-dimensional orthogonal nalgrass composite material plate and molding method thereof
  • Three-dimensional orthogonal nalgrass composite material plate and molding method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: make four-layer epoxy Arundo donax composite material laminated board.

[0021] The steps in this example are as follows:

[0022] (1) Collect 1-year-old fresh and mature reed bamboo for felling, remove the sundries on the reed bamboo stem, and cut into 0.6-meter reed bamboo segments, break the reed bamboo segments, flatten and process them into reed bamboo strips; then The obtained reed bamboo strips are dried to make the water content 8-10%; finally, the dried reed bamboo strips are planed and processed into standardized reed bamboo strips with a thickness of 2 mm.

[0023] (2) Lay the flattened reed bamboo board three layers horizontally in the warp direction, and lay four layers in the weft direction, using 1000D Aramid filament yarn as Z-direction yarn with a density of 1.45g / cm 3 , the tensile modulus is 116GPa, and the tensile strength is 200cN / tex. Through the opening of the opening device, the reed bamboo strips arranged orthogonally are bound...

Embodiment 2

[0027] Embodiment 2: making six layers of unsaturated polyester resin Arundo donax composite material laminated board.

[0028] The steps in this example are as follows:

[0029] (1) Collect 1-year-old fresh and mature reed bamboo for felling, remove the sundries on the reed bamboo stem, and cut into 0.8-meter reed bamboo segments, break the reed bamboo segments, flatten and process them into reed bamboo strips; then The obtained reed bamboo strips are dried to make the water content 8-10%; finally, the dried reed bamboo strips are planed and processed into standardized reed bamboo strips with a thickness of 2mm.

[0030] (2) Lay the flattened reed bamboo board 5 layers horizontally in the warp direction, and 6 layers in the weft direction. The yarn in the thickness direction adopts 800D ultra-high molecular weight polyethylene filaments, and the density is 0.97g / cm 3 , which is only 1 / 8 of steel, the tensile modulus is 150GPa, and the tensile strength is 350cN / tex. Pass the ...

Embodiment 3

[0034] Embodiment 3: Making seven layers of phenolic resin Arundo donax composite material laminated board.

[0035] The steps in this example are as follows:

[0036] (1) Collect 1-year-old fresh and mature reed bamboo for felling, remove the sundries on the reed bamboo stem, and cut into 0.6-meter reed bamboo segments, break the reed bamboo segments, flatten and process them into reed bamboo strips; then The obtained reed bamboo strips are dried to make the water content 8-10%; finally, the dried reed bamboo strips are planed and processed into standardized reed bamboo strips with a thickness of 2mm.

[0037](2) 5 layers of flattened reed bamboo boards are laid horizontally in the warp direction, and 6 layers are laid in the weft direction. The yarn in the thickness direction adopts 500D PBO fiber filaments, and the density is 1.54g / cm 3 , the tensile modulus is 180GPa, the tensile strength is 370cN / tex, the yarn is passed through the opening device, and through the opening...

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Abstract

The invention discloses a three-dimensional orthogonal nalgrass composite material plate and a molding method thereof. The plate is prepared by comprising the following steps: weaving a stereoscopic three-dimensional orthogonal preform by using short-production-cycle nalgrass and high-performance fiber yarns through a three-dimensional orthogonal weaving process; then treating the surface of the preform by employing a room-temperature plasma technology so as to improve interfacial binding strength with resin; and subjecting the preform and thermosetting resin to composite curing treatment by adopting a VARTM (vacuum assisted resin transfer) process so as to form the three-dimensional orthogonal nalgrass composite material plate. The composite material plate has the advantages of good delamination resistance, high tensile strength and bending strength, water resistance, corrosion resistance and low cost. The composite material plate is a novel low-cost green composite material and can be applied in the fields of construction, decoration, home furnishing, etc.

Description

technical field [0001] The invention belongs to the technical field of composite material manufacturing, and in particular relates to a three-dimensional orthogonal arundo composite material board and a forming method thereof. Background technique [0002] Reed Bamboo (nalgrass) is a tall perennial herbaceous plant, with erect stems up to 2-6 meters in height and 2-3cm in thickness. It reaches maturity in one to one and a half years, and its output is higher than that of perennial bamboo and wood , also higher than straw, wheat straw and reed. The shape of Phyllostachys reed is similar to that of reed, but its strength and hardness are significantly higher than that of Phyllostachys reed. The outer wall tissue of its stem contains many highly silicified cells, which are very hard and have good mechanical properties. At the same time, the fiber content of reed bamboo is very high, and the fibers are long, which is usually used as an ideal raw material for papermaking. It ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B9/02B32B7/04B32B27/04B32B38/00B32B37/10
CPCB32B9/02B32B7/04B32B37/10B32B38/0008B32B38/0036B32B2260/046
Inventor 陆振乾王春霞季萍刘国亮毕红军
Owner YANCHENG INST OF TECH
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