Bar section synthesized by using depleted stalk of plant, and prepartion method

A technology of plant waste and straw, which is applied in the field of synthetic profiles and its preparation, can solve the problems of technological quality, environmental pollution, poor mechanical properties, economic losses, etc., and achieve good appearance, good compactness, and increased contact area. Effect

Inactive Publication Date: 2006-12-06
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process of the reported patent is to crush the straw, cut it into small pieces or weave it into a sheet with a rope, all of which are blended and stirred with an adhesive, and then hot-pressed and solidified in a mold of different specifications. Adhesives contain toxic and harmful solvent substances (such as formaldehyde, toluene and phenol), which are harmful to the human bod

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] The preparation method of Example 1, the steps are as follows:

[0022] 1) The straw waste material is sun-dried and cracked, and the moisture content is controlled at 6%, and then put into a crusher and crushed to 50 mesh;

[0023] 2) Take the ingredients according to the proportion, stir and mix the ingredients evenly, and use a double screw extruder to extrude and cool to form at 150°C.

Example Embodiment

[0024] The preparation method of Example 2, the steps are as follows:

[0025] 1) Sun-dried and fracturing the straw waste material, the moisture content is controlled at 8%, and then put into a crusher to crush to 150 mesh;

[0026] 2) Take the ingredients according to the proportion, stir and mix the ingredients evenly, and extrude and cool them with a double screw extruder at 170°C.

Example Embodiment

[0027] The preparation method of Example 3, the steps are as follows:

[0028] 1) Sun-dried and fracturing the straw waste material, the moisture content is controlled at 8%, and then put into a pulverizer to crush to 200 mesh;

[0029] 2) Take the ingredients according to the proportion, stir and mix the ingredients evenly, and extrude and cool them with a double screw extruder at 180°C.

[0030] Example

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PUM

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Abstract

This invention discloses a method for manufacturing profile from waste plant straws. The profile is composed of: powder of waste plant straws 30-50 wt.%, plastic resin 20-40 wt.%, calcium carbonate 15-25 wt.%, flame retardant 3-7 wt.%, anti-aging agent 2-5 wt.%, and silicone oil 1-3 wt.%. The method comprises: (1) fracturing waste plant straws, drying to a water content of 6-10%, and pulverizing to 50-200 mesh; (2) homogeneously mixing the raw materials, extruding in a twin-screw extruder at 150-180 deg.C, and cooling. The profile has such advantages as low cost, abundant raw materials, simple manufacturing process, high compactness, good mechanical properties, good noise absorption, good heat resistance, good flame retardance, good corrosion resistance, high anti-aging capacity and good processability.

Description

technical field [0001] The invention relates to a composite profile and a preparation method thereof, in particular to a profile synthesized by using waste plant straws and a preparation method thereof. Background technique [0002] Castor stalks, sunflower stalks, hemp stalks, sorghum stalks, and corn stalks are a large number of crop products planted in my country. Straw, as a by-product of agricultural production, has a very large harvest and is widely distributed. It is also an important agricultural regeneration resource. Crop straw utilization technology is to process excess waste straw into another usable product through various processing channels. There are existing patent reports on the method of utilizing crop stalks to process boards, for example: castor stalk artificial wood products, plant straw artificial board new technology, sunflower stalk artificial wood products. The production process of the reported patent is to crush the straw, cut it into small piece...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08K3/26B29C47/40C08L83/04C08L101/00B29C48/40
CPCB29C48/40
Inventor 傅俊杰陈怡赵小俊沈伟桥
Owner ZHEJIANG UNIV
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