A kind of outdoor weather-resistant engineering material based on fast-growing grass and its preparation method

A technology of engineering materials and fast-growing grasses, applied in chemical instruments and methods, synthetic resin layered products, layered products, etc., to achieve strong weather resistance, fine wood, and good compatibility.

Active Publication Date: 2019-04-30
吴仪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an outdoor wood engineering material with good weather resistance, high apparent hardness, good static bending strength, good processing / etching performance and its preparation method

Method used

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  • A kind of outdoor weather-resistant engineering material based on fast-growing grass and its preparation method

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Effect test

Embodiment 1

[0031] An outdoor weather-resistant engineering material based on fast-growing grasses, the outdoor weather-resistant engineering material is an alternating layered structure, and the layered structure is 3 layers, including odd-numbered layers and even-numbered layers, and the odd-numbered layers are pennisetum. The even-numbered layers include polylactic acid wood wool and wood composite particles, and by weight percentage, the polylactic acid wood wool includes: wheat straw powder 20%, polylactic acid 80%; the wood composite particles include: high-density polyethylene (HDPE ) 50%, wheat straw powder 40%, stearic acid 7%, ethylene-vinyl acetate copolymer (EVA) 3%; the outdoor weather-resistant engineering materials are rolled, pulverized, pre-compounded, paved, and three-dimensional thermoformed Composite made of five processes.

[0032] A kind of outdoor weather-resistant engineering material preparation method based on fast-growing grass, comprises the steps:

[0033] 1)...

Embodiment 2

[0039]An outdoor weather-resistant engineering material based on fast-growing grass, the outdoor weather-resistant engineering material is an alternate layered structure, the layered structure is 11 layers, including odd-numbered layers and even-numbered layers, the odd-numbered layers are pennisetum, and the The even-numbered layers include polylactic acid wood wool and wood composite particles, and by weight percentage, the polylactic acid wood wool includes: wheat straw powder 30%, polylactic acid 70%; the wood composite particles include: high-density polyethylene (HDPE ) 55%, wheat straw powder 35%, stearic acid 5%, ethylene-vinyl acetate copolymer (EVA) 5%; the outdoor weather-resistant engineering materials are rolled, pulverized, pre-compounded, paved, and three-dimensional thermoformed Composite made of five processes.

[0040] A kind of outdoor weather-resistant engineering material preparation method based on fast-growing grass, comprises the steps:

[0041] 1) Fla...

Embodiment 3

[0047] An outdoor weather-resistant engineering material based on fast-growing grass, the outdoor weather-resistant engineering material is an alternate layered structure, the layered structure is 7 layers, including odd-numbered layers and even-numbered layers, the odd-numbered layers are pennisetum, and the The even-numbered layers include polylactic acid wood wool and wood composite particles, and by weight percentage, the polylactic acid wood wool includes: wheat straw powder 25%, polylactic acid 75%; the wood composite particles include: high-density polyethylene (HDPE ) 55%, wheat straw powder 40%, stearic acid 3%, ethylene-vinyl acetate copolymer (EVA) 2%; the outdoor weather-resistant engineering materials are rolled, pulverized, pre-compounded, paved, and three-dimensional thermoformed Composite made of five processes.

[0048] A kind of outdoor weather-resistant engineering material preparation method based on fast-growing grass, comprises the steps:

[0049] 1) Fla...

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Abstract

An outdoor weather-proof engineering material based on fast-growing grass is disclosed. The engineering material has an alternant layered structure. The layered structure includes 3 layers or above, and includes odd-number layers and even-number layers. The odd-number layers are pennisetum alopecuroides (L.) Spreng. The even-number layers include polylactic acid wood wool and wood composite particles. The polylactic acid wood wool includes 20-30% by weight of wheat straw powder and 70-80% by weight of polylactic acid. The wood composite particles include 50-55% of high density polyethylene (PE), 35-40% of wheat straw powder, 3-10% of stearic acid and 2-5% of an ethylene-vinylacetate copolymer (EVA). The invention also discloses a preparing method of the outdoor weather-proof engineering material based on fast-growing grass. The objective of the invention is to provide the outdoor wood engineering material having high weatherability, high apparent hardness, good static bending intensity and good processing / etching properties and the preparing method thereof, aiming at defects of present artificial panels and preparing processes thereof.

Description

technical field [0001] The invention belongs to the field of new materials, in particular to an outdoor weather-resistant engineering material based on fast-growing grass and its preparation. This kind of outdoor weather-resistant engineering material is especially suitable for processing highway anti-glare boards, outdoor cultural corridors, urban scenery belts, floors, columns, load-bearing beams, leisure tables and chairs, signs, etc. of tourist attractions. Background technique [0002] With the development of science and technology and the changes of the times, the demand for outdoor weather-resistant building materials is increasing day by day. The well-known application occasions include anti-glare panels and sound barriers for high-grade highways, floors, columns, load-bearing beams, leisure tables and chairs, signs, etc. in urban landscape belts, tourist attractions, and cultural corridors. Most of the engineering materials used in these outdoor places are wooden m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B9/02B32B9/04B32B27/36B32B27/32B32B37/10C08L23/06C08L97/02C08L23/08C08L67/04
CPCB32B9/02B32B9/04B32B9/045B32B27/32B32B27/36B32B37/10B32B2264/067B32B2307/712C08L23/06C08L2205/035C08L2205/16C08L2207/062C08L97/02C08L23/0853C08L67/04
Inventor 吴仪
Owner 吴仪
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