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Method for preparing cellulose filled composite material

A composite material and cellulose technology, which is applied in the field of preparing cellulose-filled composite materials, can solve the problems of limiting the use of cellulose in large quantities, increasing the hybrid performance between plastic matrix and cellulose, and different, achieving low prices and reducing production costs. , The effect of improving impact resistance

Inactive Publication Date: 2012-09-26
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since cellulose has significantly different physical and chemical properties from lignin, adding a large amount of cellulose will increase the hybrid performance of the plastic matrix and cellulose, and there will be processing difficulties in subsequent processing such as extrusion and injection molding.
Therefore, the large-scale use of cellulose in polyolefin matrix is ​​greatly limited

Method used

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  • Method for preparing cellulose filled composite material
  • Method for preparing cellulose filled composite material
  • Method for preparing cellulose filled composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh 1000 grams of granulated waste newspaper scraps recycled by Creafloc Pellitized. It is recycled waste newspaper, the main component is cellulose, TGA analysis shows that it contains 6.7% water by mass and 20.1% inorganic residues by mass, which may be calcium carbonate, kaolin, clay, etc. It was added in a drying oven for 3 hours, and its moisture mass ratio was measured to be less than 1%. Then weigh 700 grams of Flexirene MT 40A linear low-density polyethylene, 100 grams of Licocene PE MA 4351 polyethylene coupling agent, 100 grams of Licolub H12 internal lubricant, and 100 grams of Bondyram 7103 impact modifier. After fully mixing, add them into a twin-screw extruder for processing, and the processing temperature is controlled at 180°C. After extrusion molding, it is cooled with a cooling tank, and then mechanically cut into granules. After the granules are dried, they can be used for injection molding. figure 1 It is the spline section picture under SEM ...

Embodiment 2

[0039] Weigh 1000 grams of F2 raw material, the source is a mixture of waste newspapers and sawn wood through deinking and bleaching. The water content mass ratio measured by TGA is 8.3%, and the inorganic matter content mass ratio is 17.3%. It was put into a vacuum drier and dried for 3 hours, and its moisture content mass ratio measured was less than 1%. Then weigh 700 grams of PP FPC 100 polypropylene particles, 100 grams of Licocene PP MA 6452 TP polypropylene wax coupling agent, and 100 grams of polypropylene wax lubricant Licocene PP 1302. Except for F2, all other raw materials are fed into the twin-screw extruder, and the extrusion temperature is controlled at about 200°C. Put the F2 into the side feed system of the twin-screw extruder. When the extruder is normally extruded, the product is cooled and cut into granules, and then injected after drying. The actual measured specification is 170mm×10mm×4mm, the tensile elongation rate of the sample bar is 5.7%, and the i...

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Abstract

The invention relates to a method for preparing a cellulose filled composite material and belongs to the technical field of composite material preparation. The method comprises the following steps: weighing 1,000-1,100 weight parts of raw material, namely cellulose; drying for 3 hours until the mass percentage of water is less than 1 percent; weighing 60 to 80 weight parts of polyolefin, 5 to 15 weight parts of coupling agent, 5 to 15 weight parts of lubricating agent, 5 to 15 weight parts of impact resistant modifier and 5 to 15 weight parts of dispersing agent; fully mixing raw materials, and processing by using an extruder; and cooling by using a cooling tank, cutting the material to have the required shape, and drying. The prepared composite material has high mechanical properties and thermoplastic property. The composite material can be used for manufacturing various structural products; and the products have different shapes, such as office supplies, living goods (such as plastic basins, doors and windows and rail fences), crossbeams, bearing building materials, electronic product insulating shells, parts in the automobile industry, and interior decoration parts in the aviation industry.

Description

technical field [0001] The invention relates to a method for preparing a cellulose-filled composite material, and belongs to the technical field of composite material preparation. Background technique [0002] Traditional structural products such as benches, doors, windows, partitions, fences, etc. are generally made of steel, wood or traditional plastics, such as polyethylene, polypropylene, various other polyolefins, and blended polyolefins. Generally speaking, steel and wood materials have high structural strength, are widely used, and can be used to manufacture many household products. But the disadvantage is that steel is easy to rust and corrode, and has poor plasticity; while plastic is a product that is easy to age, the cost is relatively high, the resource consumption is large, and the environment is relatively polluted. [0003] The invention is a thermoplastic polyolefin composite material containing plant cellulose filler. Can be used in compression molding, r...

Claims

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Application Information

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IPC IPC(8): C08L1/02C08L23/00C08L23/06C08L23/08C08L23/12
Inventor 施利毅杨恒张剑平张大卫
Owner SHANGHAI UNIV
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