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Linen fiber morph-genetic structure tin oxide or aluminium oxide compound material

A composite material and hemp fiber technology, applied in the field of composite material manufacturing, can solve problems such as no involvement, application influence, and imperfect performance of legacy materials, and achieve good sound absorption, broad application prospects, and good friction reduction and wear resistance.

Inactive Publication Date: 2009-03-11
XI'AN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The prior art disclosed above mainly relates to the method of preparing C fiber ceramic composite materials using the remains of natural fibers such as wood, bamboo, straw, and tobacco rods, but does not involve the preparation of metal oxide / carbon-based composites using the remains of hemp fibers. Methods
However, the application range of C fiber ceramic composite materials is limited, and the research on the performance of the relic materials reported in domestic and foreign literature is not perfect. Impact

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Take SnCl 4 Aqueous solution, ammonia water is added dropwise in the aqueous solution to produce chemical co-precipitation to obtain nano Sn(OH) 4 aqueous solution. The completely degummed ramie fiber (fine dry hemp) is cut into 5mm~100mm long section, puts into concentration and is soaked in 5wt% NaOH aqueous solution for 30h, takes out, washes until pH is neutral (pH=7), at temperature Dry in a vacuum environment at 60°C for 4h; soak the treated hemp fiber in nano Sn(OH) 4 In the aqueous solution, immerse for 0.5h, take it out, put it in an environment with a temperature of 105°C, and dry it for 1h. Repeat the immersion and drying until the SnO 2 The weight ratio to the ramie fiber is 5:3, and the prepared material is obtained, and the prepared material is pressed into a billet at room temperature and a pressure of 40MPa, and then placed in a vacuum hot-press furnace with a temperature of 600°C and a pressure of 5MPa, and is kept for 0.5h. Reaction hot pressing and...

Embodiment 2

[0045] Take Al 2 (SO 4 ) 3 Aqueous solution, ammonia water is added dropwise in the solution to produce chemical co-precipitation to obtain nano-Al(OH) 3 aqueous solution. Cut the undegummed raw sisal hemp into 5mm-100mm long sections, soak it in 25wt% NaOH aqueous solution for 10h, take it out, and wash it until the pH is neutral (pH=7). In the environment, dry for 1h; soak the treated hemp fiber in nano-Al(OH) 3 Immerse in the precursor aqueous solution for 1 hour, take it out, place it in a vacuum environment at a temperature of 60°C, and dry it for 4 hours. Repeat the immersion and drying until Al 2 o 3 The weight ratio of hemp fiber to hemp fiber is 5:5, and the prepared material is obtained, and the prepared material is pressed into a billet at room temperature and a pressure of 40 MPa, and then placed in a vacuum hot-press furnace with a temperature of 300 ° C and a pressure of 1 MPa for 2 hours. , reaction hot pressing and sintering, take it out, put it in an env...

Embodiment 3

[0047] Take Al 2 (SO 4 ) 3 Aqueous solution, ammonia water is added dropwise in the solution to produce chemical co-precipitation to obtain nano-Al(OH) 3 aqueous solution. Cut undegummed raw sisal hemp into 5mm-100mm long sections, soak in 15wt% NaOH aqueous solution for 20 hours, take it out, wash with water until the pH is neutral (pH=7), and put it in a 85°C In a vacuum environment, dry for 2.5h; soak the treated hemp fiber in nanometer Al(OH) 3 In the aqueous solution, soak for 0.75h, take it out, put it in a vacuum environment with a temperature of 85°C, and dry it for 2.5h, repeat the dipping and drying until Al 2 o 3 The weight ratio of hemp fiber to hemp fiber is 5:4, and the prepared material is obtained. The prepared material is pressed into a billet at room temperature and a pressure of 20 MPa, and then placed in a vacuum hot-press furnace with a temperature of 450 ° C and a pressure of 3 MPa. h, reaction hot-pressing sintering, take it out, put it in an envir...

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PUM

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Abstract

The invention discloses a method for preparing a tin oxide or alumina composite material with bastose morph-genetic structure. The method comprises the following steps: firstly, nanometer stannic hydroxide or aluminum hydroxide aqueous solution is prepared; secondly, bastose is taken out and is subjected to pretreatment to obtain a bastose material or a crystalline-state structure C with the bastose morph-genetic structure; and the bastose material or the crystalline-state structure C is placed in the hydroxid aqueous solution and is subjected to dipping, drying, intermediate temperate vacuum reaction, heat pressing, sintering and annealing to prepare a metal oxide / carbon-based composite material. With the preparation method, Sn or Al nanometer hydroxid is immersed into the inside or the periphery of a cavity of the bastose structure; a reaction, heat pressing and molding process is utilized to dewater the nanometer hydroxid to form metal oxide; and the metal oxide is compounded with carbon to prepare the metal oxide / carbon-based composite material with the bastose morph-genetic structure; and the composite material has the characteristics of light mass, vibration elimination, sound absorption and good friction reduction and abrasion resistance, broadens the application field of the bastose composite material and has wider application prospect.

Description

technical field [0001] The invention belongs to the technical field of composite material manufacturing, and relates to a method for preparing a composite material, in particular to a method for preparing a tin oxide or aluminum oxide composite material with a hemp fiber remains structure. Background technique [0002] At present, the known technologies for preparing metal oxide / carbon-based composite materials include: 1) "Research Concept and Research Progress of Relic Materials" published in Materials Herald [J], 2006, 10:5-7; 2) Ningxia Engineering Technology [J], 2006, 6:130~134, "Preparation of TiN / C Porous Ceramics Using Wood as a Template"; 3) Kunming University of Science and Technology Master's Degree Thesis, 2006, 19:1~88, "Tobacco Rod Base Wood Preparation and Characterization of Ceramics"; 4) "Wooden Ceramic Composite Materials with Network Interpenetrating Structure" published in Journal of Materials Research [J], 2002, 16:259-262; 5) "Carbon-based slider mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G19/02C01F7/02
Inventor 贺辛亥王俊勃杨敏鸽付翀陈立成畅巍齐乐华
Owner XI'AN POLYTECHNIC UNIVERSITY
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