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Preparation method of waste tobacco stem fiber reinforced resin-based composite material

A fiber-reinforced resin and composite material technology, which is applied in the field of preparation of waste tobacco stalk fiber-reinforced resin-based composite materials, can solve the problems of difficult large-scale promotion, long-term cost, poor interface bonding, etc., and achieve low cost and meet performance requirements , good mechanical properties

Pending Publication Date: 2020-12-04
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with the problems of long-term cost, multi-process, high cost, and difficulty in large-scale promotion when recycling waste tobacco stalks by using tobacco to extract chemical raw materials, prepare activated carbon, make fiberboard and paper, etc., using waste tobacco stalk fiber The preparation of wood-plastic composites based on reinforced resin has the advantages of simple preparation process, safety and environmental protection. In addition, there is no relevant research on the use of waste tobacco stalk fibers to prepare wood-plastic composites.
[0006] The content of the present invention is to provide a preparation method of waste tobacco stalk fiber reinforced resin-based composite material, and provide a method for surface treatment of waste tobacco stalk fiber, which solves the problem of the composite material caused by the difference in polarity between the tobacco stalk fiber and the resin base. The problem of poor interface

Method used

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  • Preparation method of waste tobacco stem fiber reinforced resin-based composite material
  • Preparation method of waste tobacco stem fiber reinforced resin-based composite material
  • Preparation method of waste tobacco stem fiber reinforced resin-based composite material

Examples

Experimental program
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Effect test

Embodiment 1

[0057] A method for preparing waste tobacco stalk fiber-reinforced resin-based composite materials, specifically implemented according to the following steps:

[0058] Step 1. Weigh 18g of tobacco stalk fibers and 162g of high-density polyethylene and place them in an oven for drying. The drying time is 8 hours and the drying temperature is 80°C;

[0059] Step 2. Put the weighed high-density polyethylene into a mixer for melting for 1 minute. After the polyethylene changes from granular to sticky, gradually put in the weighed tobacco stalk fiber for mixing. The mixing time is 5 minutes; the mixing temperature is 165°C, and the blend is scraped off for use after mixing evenly; the mass of tobacco stalk fiber in the blend is 10%, and the mass of high-density polyethylene is 90%;

[0060] Step 3, placing the scraped blend in a multifunctional pulverizer for crushing to obtain a granular composite material, and the crushing time is 1 min;

[0061] Step 4, put the granular composi...

Embodiment 2

[0065] A method for preparing waste tobacco stalk fiber-reinforced resin-based composite materials, specifically implemented according to the following steps:

[0066] Step 1. Weigh 36g of tobacco stalk fibers and 144g of high-density polyethylene and place them in an oven for drying. The drying time is 8 hours and the drying temperature is 80°C;

[0067] Step 2. Put the weighed high-density polyethylene into a mixer for melting for 1 minute. After the polyethylene changes from granular to sticky, gradually put in the weighed tobacco stalk fiber for mixing. The mixing time is 5 minutes; the mixing temperature is 165° C., and the blend is scraped off for use after mixing evenly; the mass of tobacco stalk fiber in the blend is 20%, and the mass of high-density polyethylene is 80%;

[0068] Step 3, placing the scraped blend in a multifunctional pulverizer for crushing to obtain a granular composite material, and the crushing time is 1 min;

[0069] Step 4, put the granular compo...

Embodiment 3

[0073] A method for preparing waste tobacco stalk fiber-reinforced resin-based composite materials, specifically implemented according to the following steps:

[0074] Step 1. Weigh 54g of tobacco stalk fibers and 126g of high-density polyethylene and place them in an oven for drying. The drying time is 8 hours and the drying temperature is 80°C;

[0075] Step 2. Put the weighed high-density polyethylene into a mixer for melting for 1 minute. After the polyethylene changes from granular to sticky, gradually put in the weighed tobacco stalk fiber for mixing. The mixing time is 5 minutes; the mixing temperature is 165° C., and the blend is scraped off for use after mixing evenly; the mass of tobacco stalk fiber in the blend is 30%, and the mass of high-density polyethylene is 70%;

[0076] Step 3, placing the scraped blend in a multifunctional pulverizer for crushing to obtain a granular composite material, and the crushing time is 1 min;

[0077] Step 4, put the granular compo...

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Abstract

The invention discloses a preparation method of a waste tobacco stem fiber reinforced resin-based composite material. The preparation method specifically comprises the following steps: 1, preparing modified tobacco stem fibers, 2, respectively weighing the modified tobacco stalk fibers or tobacco stalk fibers and high-density polyethylene, and drying in a drying oven, 3, putting the dried modifiedtobacco stalk fibers or tobacco stalk fibers and high-density polyethylene into a mixing mill according to a certain mass ratio for melting and mixing to obtain a blend, 4, crushing the blend to obtain a granular composite material, and drying the granular composite material in a drying oven, and 5, taking out the dried composite material from the oven, pouring the dried composite material into avertical injection molding machine for injection molding, and taking out the standard sample after cooling to obtain the tobacco stem fiber / high-density polyethylene or modified tobacco stem fiber / high-density polyethylene composite material. The tobacco stalk fiber / high-density polyethylene composite material is prepared by adopting an injection molding method, the preparation process is safe and environment-friendly, and the preparation process is simple.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation methods, and relates to a preparation method of waste tobacco stalk fiber-reinforced resin-based composite materials. Background technique [0002] Plant fiber reinforced thermoplastic composite material is a green and environmentally friendly composite material, which is prepared by hot pressing, extrusion or injection of plant fiber and thermoplastic. With the advantages of high strength, low water absorption, easy processing and molding, low cost and good mechanical properties, it is widely used in furniture, construction, transportation, automobiles and other fields. [0003] As a large agricultural country in my country, crop straw fibers such as wheat straw, sorghum straw, and corn straw are also used to prepare wood-plastic composite materials. In addition, the researchers also used agricultural residual solid waste such as barley straw, sesame straw, and cassava str...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L97/02C08J5/04C08J5/06
CPCC08J5/045C08J5/06C08J2323/06C08J2497/02C08J2397/02
Inventor 张效林李少歌
Owner XIAN UNIV OF TECH