A kind of ecological composite material and preparation method thereof

A composite material and ecological technology, applied in papermaking, paper recycling, processing waste paper, etc., can solve the problems of poor impact toughness, poor dimensional stability, and poor creep resistance, etc., to improve compatibility, Reduce material cost and good creep resistance

Inactive Publication Date: 2011-11-30
浙江金磊窗业有限公司
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of material still has the following common problems: poor creep resistance, poor dimensional stability, average static bending strength, especially the impact toughness is far from the excellent performance of wood
At present, it is reported that waste paper is used in the preparation of ecological composite materials in a molding or paper paste method, and because of the limitations of the processing technology, the amount of addition is small and the production efficiency is low; while waste paper and polyethylene are used as There are few reports on the research and development of the main raw materials to prepare ecological composite profiles. The main reason is that the crushing and pretreatment process of recycled waste paper has become the bottleneck of its development. Further research and development will be carried out to prepare a new type of ecological composite profile with excellent performance at a lower cost, which will truly broaden the field of comprehensive utilization of waste paper, a waste resource.

Method used

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  • A kind of ecological composite material and preparation method thereof
  • A kind of ecological composite material and preparation method thereof
  • A kind of ecological composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The preparation method of the modified waste paper fiber powder is as follows: after the waste paper is divided into pieces, it is directly immersed in an impregnation solution (pH=5.0, adjusted by acetic acid) composed of 0.5kg vinyl silane, 94.5kg ethanol and 5kg water for 30 minutes. , filtered and drained, and modified waste paper fragments were obtained after heat treatment at a high temperature of 120°C for 30 minutes, and the modified waste paper fragments were mixed and sheared at high speed (1500rpm) in a counter-rotating double-helix mixer for 5 minutes, filtered and dried Obtain modified waste paper fiber powder with a particle size of 80 mesh to 120 mesh, such as figure 2 .

[0050] 2.0kg of wood powder with a particle size of 60 mesh to 80 mesh, 5.0kg of polyethylene, 0.1kg of EBS, 0.2kg of maleic anhydride grafted polyethylene, 0.01kg of iron oxide yellow, 0.05kg of 2-hydroxy-4-n-octoxy After the benzophenone is mixed evenly, put it in the co-rotating pa...

Embodiment 2

[0052] The preparation method of the modified waste paper fiber powder is as follows: after the waste paper is divided into pieces, it is directly immersed in an impregnation solution consisting of 5 kg of vinyl silane oligomer (SG-Si6490, Nanjing Shuguang Chemical Group Co., Ltd.), 80 kg of propanol and 15 kg of water. (pH = 4.5, adjusted by acetic acid) for 1 minute, filtered and drained, after 10 minutes of heat treatment at a high temperature of 130 ° C to obtain modified waste paper fragments, the modified waste paper fragments were mixed in a counter-rotating double-helix mixer at a high speed ( 1000 rpm) mixed and sheared for 10 minutes, filtered and dried to obtain a modified waste paper fiber powder with a particle size of 80 mesh to 100 mesh.

[0053] 0.8kg of wood powder with a particle size of 80 mesh to 100 mesh, 8kg of polyethylene, 0.02kg of EBO, 0.08kg of maleic anhydride grafted polyethylene, 0.01kg of iron oxide yellow, 0.03kg of 2-hydroxy-4-n-octyloxydi Afte...

Embodiment 3

[0055] The preparation method of the modified waste paper fiber powder is as follows: after the waste paper is divided into pieces, it is directly immersed in 0.03kg vinyl silane, 0.02 kg vinyl silane oligomer (SG-Si6490, Nanjing Shuguang Chemical Group Co., Ltd.), 99 kg Immerse in an impregnation solution (pH=5.5, adjusted by acetic acid) composed of n-butanol and 0.95kg water for 60 minutes, filter and drain, and obtain modified waste paper fragments after heat treatment at 95°C for 120 minutes. Mix and shear at high speed (2500pm) in a counter-rotating twin-screw mixer for 1 minute, filter and dry to obtain modified waste paper fiber powder with a particle size of 40 mesh to 80 mesh.

[0056] 1.0kg of wood powder with a particle size of 100 mesh to 120 mesh, 2.0kg of modified waste paper fiber powder, 7.0kg of polyethylene and 0.15kg of EBL, 0.1kg of maleic anhydride grafted polyethylene, 0.01kg of iron oxide yellow, 0.04 kg2-Hydroxy-4-n-octyloxy benzophenone is mixed evenl...

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Abstract

The invention discloses an ecological composite material, which consists of a basic material and an assistant, wherein the basic material comprises the following raw materials in percentage by weight: 12 to 45 percent of modified waste paper fiber powder, 8 to 30 percent of wood meal and 25 to 80 percent of polyethylene; the preparation method of the modified waste paper fiber powder comprises: cutting waste paper into pieces, directly soaking the waste paper into soaking solution, filtering, draining, performing heat treatment at 95 to 130 DEG C for 10 to 120 DEG C, obtaining modified waste paper pieces, crushing the modified waste paper pieces by high-speed mixing and shearing, filtering and drying to obtain modified waste paper fiber powder; and the soaking solution may be ethanol and water mixed solution of one or two of vinylsilane and vinylsiloxane oligomer. The ecological composite material has high static bending strength and creep resistance. The invention also discloses a method for preparing the material. The method is simple in operation and easy to control.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to an ecological composite material and a preparation method thereof. Background technique [0002] With the strengthening of people's awareness of environmental protection and the development of renewable resource utilization technology, ecological composite materials prepared from waste recycled synthetic polymer materials and natural polymer materials have a strong momentum of development in the world. At present, synthetic polymer materials used in such ecological composite materials (such as profiles) include thermoplastics such as polyethylene, polyvinyl chloride, and polystyrene; while natural polymer materials are mainly some waste plant fibers, including wood powder , bamboo powder, straw, rice husk, peanut shell, etc. The two are in a certain ratio and some processing aids, coupling agents, etc. are added, and the corresponding profiles and products are prepared by melt...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L97/02C08L1/02C08L5/14D21C5/02C08B37/14C08B15/05
CPCY02W30/64
Inventor 郑锋
Owner 浙江金磊窗业有限公司
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