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Production method of crop straw-based degradable polymer sheet

A technology of crop straw and polymer, applied in the field of straw recycling, can solve the problems of environmental pollution, insufficient recycling rate of straw resources, poor strength and quality, etc. The effect of using performance, avoiding pollution and waste of resources

Inactive Publication Date: 2018-09-18
河南省现代农业研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Straw is one of the largest wastes produced in agricultural production, and it is also one of the resources with great recycling value. At present, when recycling straw, using straw as building materials such as boards is the current straw recycling and utilization strategy. One of the main methods to increase the added value of straw, but it is currently found in the preparation of straw boards that the current boards made of straw are often of traditional plywood structure. Although they can meet the needs of use, the structural strength and quality of the boards are relatively poor. In addition, it is often necessary to add highly toxic additives during production, which severely limits the development and product promotion of straw preparation board technology. In view of this problem, although the current development uses straw as a raw material for the production of polymer boards, the current On the one hand, this kind of polymer sheet generally has a low straw content, and the recycling rate of straw resources is insufficient; At present, no matter plywood or polymer board made of straw, there are defects of poor antibacterial and antibacterial properties to varying degrees, which further limits the promotion and application of straw-made board technology and products. To solve this problem, there is an urgent need Develop a new straw preparation technology to meet the needs of practical use

Method used

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  • Production method of crop straw-based degradable polymer sheet

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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a method for preparing a degradable polymer sheet based on crop straw includes the following steps:

[0023] In the first step, straw pretreatment, the straw to be treated is soaked in deionized water at 30°C for 12 hours, then the soaked straw is freeze-dried, and the freeze-dried straw is crushed into 160 mesh powder for later use;

[0024] The second step is to mix materials. After the first step is completed, the prepared straw powder and waste plastic particles, 20-100 mesh calcium carbonate powder, silver oxide powder, polyvinyl chloride, kumquat powder, graphene fiber, carboxylate Methyl cellulose, polyethylene-propionic acid copolymer and antioxidant are mixed and stirred evenly. Among them, straw powder and waste plastic particles, 20-100 mesh calcium carbonate powder, silver oxide powder, polyvinyl chloride, kumquat powder, graphite The mass percentages of olefin fiber, carboxymethyl cellulose, polyethylene-propionic acid copolymer and a...

Embodiment 2

[0029] Such as figure 1 As shown, a method for preparing a degradable polymer sheet based on crop straw includes the following steps:

[0030] In the first step, straw pretreatment, the straw to be treated is soaked in deionized water at 50°C for 24 hours, then the soaked straw is freeze-dried, and the freeze-dried straw is crushed into 200 mesh powder for later use;

[0031] The second step is to mix the materials. After the first step is completed, the prepared straw powder and waste plastic particles, phenolic resin, titanium dioxide powder, vinyl acetate resin, lemon powder, organic fiber, carboxymethyl cellulose, and poly β— Hydroxybutyrate and antioxidant are mixed and stirred evenly, including straw powder and waste plastic particles, phenolic resin, titanium dioxide powder, vinyl acetate resin, lemon powder, organic fiber, carboxymethyl cellulose, poly β-hydroxybutyrate And the mass percentage of antioxidants: straw powder 10%-30%, phenolic resin 6%, titanium dioxide powde...

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Abstract

The invention relates to a production method of a crop straw-based degradable polymer sheet. The method comprises the following steps: straw preprocessing, mixing, milling, and molding processing. Themethod has the advantages of simplicity in production operation, good technology standardability and versatility, low labor intensity, low production cost, safe and environmentally-friendly production raw materials, effectiveness in the improvement of the recycling rate of straws and waste plastics, effectiveness in the improvement of the degradability and the antibacterial and bacteriostatic ability of the sheet on the premise of meeting the structural strength and the toughness of the sheet, effectiveness in improvement of the application range and the use performances of the straw producedsheet, and avoiding of pollution to the circumferential environment and resource wastes.

Description

Technical field [0001] The invention relates to a method for preparing a degradable polymer sheet based on crop straw, and belongs to the technical field of straw recovery. Background technique [0002] Straw is one of the largest wastes produced in agricultural production, and it is also one of the resources with great recycling value. At present, when straw is recycled, using straw as a building material such as plates is the current straw recycling and utilization. One of the main methods to increase the added value of straw, but currently found in the preparation of straw panels, the current panels prepared by straw are often traditional plywood structures. Although they can meet the needs of use, the structural strength and quality of the panels are relatively poor. Moreover, it is often necessary to add more toxic additives in production, which severely limits the development and product promotion of straw preparation technology. In response to this problem, although the cu...

Claims

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Application Information

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IPC IPC(8): C08L101/00C08L97/02C08L27/06C08L1/28C08L23/08C08L61/06C08L31/04C08K13/04C08K3/26C08K3/22C08K7/06
CPCC08K2003/2241C08K2003/2286C08K2003/265C08L101/00C08L2201/06C08L2205/035C08L2205/16C08L2207/20C08L97/02C08L27/06C08L1/286C08L23/0869C08K13/04C08K3/26C08K3/22C08K7/06C08L61/06C08L67/04C08L31/04
Inventor 王红英李明雄高强张淑钰
Owner 河南省现代农业研究院
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