Production method for composite material of cotton lever and plastics

A technology of composite materials and cotton stalks, which is applied in the field of preparation of cotton stalks and plastic composite materials, to achieve the effects of increasing added value, high dimensional stability, and solving utilization problems

Inactive Publication Date: 2008-07-16
GUANGZHOU SCUT BESTRY TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses cotton stalks and pla

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The first step is to use the HT-300 German wood flour machine to crush the cotton stalks into 30-60 mesh cotton stalk powders, and then dry them under hot air at 90°C for 8 hours to make the water content ≤ 3% to obtain dry cotton rod powder. At the same time, the thermoplastic resin HDPE and the compatibilizer maleic anhydride grafted polyethylene were dried at 70° C. for 2 hours.

[0024] In the second step, the dry cotton stalk powder is mixed with the coupling agent solution (the weight ratio of silane coupling agent KH-550: absolute ethanol = 1: 2 is prepared by dilution) in a high-temperature mixer, and sprayed while mixing The silane coupling agent KH-550 that has been diluted with absolute ethanol, the dosage of the coupling agent solution is 2% of the weight of the cotton stalk powder, the temperature is 100°C, and the mixing time is 10 minutes, so that the coupling agent evenly covers the cotton stalk powder, The modified cotton stalk powder is obtained to im...

Embodiment 2

[0029] The first step is to use HT-300 German wood flour machine to crush the cotton stalk into 80 mesh cotton stalk powder, and then dry it under hot air at 90°C for 10 hours to make the water content ≤ 3% to obtain dry cotton stalk powder . Simultaneously, the thermoplastic resin PVC was dried at 100° C. for 1 hour.

[0030] In the second step, the dry cotton stalk powder is mixed with the coupling agent solution (diluted and prepared at a weight ratio of titanate coupling agent NDZ311: absolute ethanol = 1: 3) in a high-temperature mixer, and mixed while mixing Spray titanate coupling agent NDZ311 diluted with absolute ethanol, the amount of coupling agent solution is 1% of the weight of cotton stalk powder, the temperature is 100°C, and the mixing time is 15 minutes, so that the coupling agent evenly covers the cotton stalk powder , to obtain modified cotton stalk powder.

[0031] The third step, in parts by weight, with 35 parts of modified cotton stalk powder and 65 pa...

Embodiment 3

[0035] The first step is to use HT-700 German wood flour machine to crush the cotton stalk into 80 mesh cotton stalk powder, and then dry it under hot air at 90°C for 6 hours to make the water content ≤ 3% to obtain dry cotton stalk powder . Simultaneously, the thermoplastic resin PVC was dried at 80° C. for 2 hours.

[0036] In the second step, the dry cotton stalk powder is mixed with the coupling agent solution (aluminum zirconate coupling agent: dehydrated alcohol=1:3 weight ratio is prepared by diluting) in a high-temperature mixer, and the mixture is mixed. Spray aluminum zirconate coupling agent diluted with absolute ethanol, the amount of coupling agent solution is 1.5% of the weight of cotton stalk powder, the temperature is 100°C, and the mixing time is 15 minutes, so that the coupling agent evenly covers the cotton stalk powder , to obtain modified cotton stalk powder.

[0037] In the third step, in parts by weight, 50 parts of modified cotton stalk powder and 50 ...

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Abstract

The invention discloses a preparation method of a cotton stalk and plastic composite material. The steps of the method is that: the cotton stalk is grinded into cotton stalk powders with 40 to 160 meshes, then the cotton stalk powders are dried until the moisture content is less than or equal to 3 percent, and the dried cotton stalk powders are stirred and sprayed with coupling agent solution simultaneously, and the modified cotton stalk powders are prepared; the modified cotton stalk powders are then mixed evenly with plastic resin, compatilizer, lubricant, stabilizer, antioxidant, filling materials and flame retardant, then mixed material is prepared; after the mixed material is extruded from an extruding machine, the cotton stalk and plastic composite material is obtained. The invention properly solves the problems of compatibility between the cotton stalk and the plastic and treatment technology of surface of raw materials, realizes comprehensive utilization of cotton stalk waste which can be used for replacing lumbers which are at the state of shortage, increases the added value of the cotton planted by a cotton grower, and solves the problem of utilization of the cotton stalk wastes.

Description

technical field [0001] The invention belongs to the technical field of natural plant fiber composite materials and wood-plastic composite materials, and specifically refers to a preparation method of cotton stalks and plastic composite materials. Background technique [0002] my country is a big cotton producing country in the world. According to statistics, in 2007, my country's cotton planting area reached 82.65 million mu, and the lint output reached 7.1 million tons. The production area is widely distributed, and it is planted in 14 provinces and municipalities from Xinjiang to the south. Xinjiang is the largest cotton-producing area in my country, and its output accounts for 1 / 4 of the country's total. [0003] Cotton has great application value, and cotton fiber is an important raw material for the textile industry; cottonseed kernel is an important oil source for oil industry and food industry, and is also a rich protein bank for food and feed; cottonseed hull is an i...

Claims

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Application Information

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IPC IPC(8): C08L97/02C08L27/06C08L23/02C08K5/56C08J5/00B29C47/40C08L51/06C08K5/09C08K3/36
Inventor 蒋迪清马铁军
Owner GUANGZHOU SCUT BESTRY TECHNOLOGY CO LTD
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