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Method for preparing light cement/bamboo composite material by adopting papermaking white sludge

A technology for composite materials and white mud for papermaking, applied in the field of composite materials, can solve the problems of high production and management costs, long production cycle, large space occupation, etc., and achieves superior physical and mechanical properties, good sound insulation and heat insulation properties, and low density. Effect

Active Publication Date: 2014-10-01
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the whole preparation process has a long production cycle and takes up a large space, which causes inconvenience to production, and the production and management costs are high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] 1) Mix 250 parts of papermaking white mud and 150 parts of bamboo scraps evenly, then add 5 parts of glutinous rice starch, and mix evenly; 2) Mix 250 parts of cement marked 42.5 with the mixture obtained in step 1) and add 850 3) Mix 5 parts of calcium chloride with 100 parts of water, add to the mixed slurry obtained in step 2) and stir evenly; 4) Mix 5 parts of polyvinyl alcohol with 80 parts of water, then add Step 4) In the obtained mixed slurry, stir evenly; 5) Mix 5 parts of foaming agent with 50 parts of water evenly; then add to the mixed slurry obtained in step 5) and stir evenly; 6) Mix the obtained Put the cement slurry into the mold, then place it in a pre-curing room at a temperature of 70°C for foaming and molding for 4 hours; 7) Cut the semi-dry product of lightweight cement / bamboo composite material prepared from papermaking white mud obtained in step 6) 8) Place the lightweight cement / bamboo composite material obtained in step 7) in an autoclave for 13...

Embodiment 2

[0037] 1) Mix 260 parts of paper-making white mud and 120 parts of bamboo scraps evenly, then add 5 parts of glutinous rice starch, and mix evenly; 2) Mix 280 parts of cement marked 42.5 with the mixture obtained in step 1), and then add 600 parts of water are stirred evenly; 3) 5 parts of calcium chloride are mixed with 100 parts of water, and then added to the mixed slurry obtained in step 2) and stirred evenly; 4) 5 parts of polyvinyl alcohol are mixed with 50 parts of water, Then add to the mixed slurry obtained in step 4) and stir evenly; 5) Mix 5 parts of foaming agent and 50 parts of water evenly; then add to the mixed slurry obtained in step 5) and stir evenly; 6) Mix the obtained Put the cement slurry into the mold, and then place it in a pre-curing room at a temperature of 70°C for foaming and molding for 4 hours; 7) The semi-dry product of lightweight cement / bamboo composite material prepared by using papermaking white mud obtained in step 6) Cut into blocks with a ...

Embodiment 3

[0039]1) Mix 260 parts of papermaking white mud and 130 parts of bamboo scraps evenly, then add 7 parts of glutinous rice starch, and mix evenly; 2) Mix 280 parts of cement marked 42.5 with the mixture obtained in step 1), and then add 750 parts of water are stirred evenly; 3) 7.5 parts of calcium chloride and 1 part of sodium silicate are mixed with 100 parts of water, and then added to the mixed slurry obtained in step 2) and stirred evenly; 4) 5 parts of dodecyl Mix dimethylamine oxide with 50 parts of water evenly, then add to the mixed slurry obtained in step 4) and stir evenly; 5) Mix 5 parts of foaming agent with 60 parts of water evenly; then add the mixed slurry obtained in step 5) 6) Put the cement slurry obtained in step 5) into the mold, and then place it in a pre-curing room at a temperature of 70°C for foaming and molding for 4 hours; 7) Prepare the obtained cement slurry in step 6) with paper-making white mud The semi-dry product of the formed lightweight cement...

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Abstract

The invention discloses a method for preparing light cement / bamboo composite material by adopting papermaking white sludge. The composite material obtained through the method comprises the following raw materials in parts by weight: 250 to 300 parts of silicate cement, 250 to 300 parts of papermaking white sludge, 120 to 200 parts of pulverized bamboo materials, 5 to 10 parts of coagulant aid, 10 to 20 parts of a foaming agent, 3 to 8 parts of a bubble stabilizing agent, 5 to 10 parts of a thickening agent and 700 to 1000 parts of water. The manufacturing process comprises the following steps: uniformly mixing the pulverized bamboo materials and papermaking white sludge, sequentially adding the cement, water, foaming agent and the like, uniformly stirring to obtain mixed slurry, finally die-filling, foaming, molding, evaporating and standing the mixed slurry to obtain the light cement / bamboo composite material prepared by utilizing the papermaking white sludge. According to the light cement / bamboo composite material prepared by utilizing the papermaking white sludge, not only can the bamboo processing waste and the waste papermaking white sludge be reasonably utilized, but also the environmental pollution caused by the papermaking white sludge can be solved, the recycling of the resource is realized, the industrial chain of the bamboo industry is completed, and the resource integrated sustainable development strategy can be satisfied.

Description

technical field [0001] The invention belongs to the field of composite materials, and more specifically relates to a method for preparing lightweight cement / bamboo composite materials by using papermaking white mud. Background technique [0002] With the requirements of my country's resource-saving society construction and the national energy-saving and consumption-reducing policies, environmental protection and energy-saving building materials are bound to become the development direction of new building materials. The strength of the wall material is urgent. [0003] At present, the global forest resources are declining sharply and the resource structure is unbalanced. At present, the wood-based panel industry is generally developed by making full use of resources such as artificial fast-growing wood, sub-small fuel wood, processing residues, and crop straws, thereby changing the situation of excessive use of forest resources. Further ease the contradiction between the sup...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B38/02C04B18/24C04B18/26
CPCY02W30/91
Inventor 饶久平谢拥群韩益杰陈汀杰林巧佳曾钦志
Owner FUJIAN AGRI & FORESTRY UNIV
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