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Waste paper-based mulching film and preparation method thereof

A technology of base film and waste paper, which is applied in the direction of botany equipment and methods, special paper, paper, etc., can solve the problems of high cost and poor performance of paper base film, achieve effective use of waste paper resources, simple preparation process, good The effect of mechanical properties

Active Publication Date: 2018-07-10
YUNNAN YUNJING FORESTRY & PULP MILL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the paper-based film still has problems such as high cost and poor performance, so it is difficult to popularize and use it.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] (1) Mix rosin polyoxyethylene ester surfactant and 15wt% hydrogen peroxide at a mass ratio of 1:20 to form a mixed agent, and then make the mixed agent account for 4wt% of waste paper (relative to dry pulp) The agent is mixed with waste paper (office waste paper and / or waste newspaper, etc.), and then subjected to conventional mechanical disintegration to complete deinking, and then repulped to obtain deinked waste paper pulp;

[0022] (2) Prepare materials according to the following parts by mass:

[0023] 1 part of rosin glyceride, 8 parts of humic acid, 4 parts of distiller's grains, 10 parts of waste paper pulp after deinking (by dry basis);

[0024] (3) Mix rosin ester, humic acid, distiller's grains with 2% deinked waste paper pulp, and then prepare a paper base film with a thickness of 30 μm by papermaking method.

[0025] The weight of the film is 48.2 g·m 2 , with a tear index of 8.40 mN•m 2 • g -1 , the burst index is 3.01mN·m 2 • g -1 , with a transpare...

Embodiment 2

[0027] (1) Mix rosin sulfonate potassium surfactant and 20wt% hydrogen peroxide at a mass ratio of 1:30 to form a mixed agent, and then make the mixed agent account for 6wt% of waste paper (relative to dry pulp) Mix with waste paper (office waste paper and / or waste newspaper, etc.), and then carry out conventional mechanical disintegration to complete deinking, and then repulp to obtain deinked waste paper pulp;

[0028] (2) Prepare materials according to the following parts by mass:

[0029] 1 part of rosin ethanol ester, 6 parts of humic acid, 3 parts of distiller's grains, 12 parts of waste paper pulp after deinking (by dry basis);

[0030] (3) Mix rosin ester, humic acid, distiller's grains with 4% deinked waste paper pulp, and then prepare a paper base film with a thickness of 25 μm by papermaking method.

[0031] The weight of the film is 42.2 g·m 2 , with a tear index of 8.10 mN•m 2 • g -1 , the burst index is 2.79mN·m 2 • g -1 , with a transparency of 59.20%.

Embodiment 3

[0033] (1) Mix rosin glycidyl ethanolamine surfactant and 25wt% hydrogen peroxide at a mass ratio of 1:40 to form a mixed agent, and then make the mixed agent account for 8wt% of waste paper (relative to dry pulp) Mix with waste paper (office waste paper and / or waste newspaper, etc.), and then carry out conventional mechanical disintegration to complete deinking, and then repulp to obtain deinked waste paper pulp;

[0034] (2) Prepare materials according to the following parts by mass:

[0035] 1 part of rosin hexamyl alcohol ester, 6 parts of humic acid, 4 parts of distiller's grains, 10 parts of waste paper pulp after deinking (by dry basis);

[0036] (3) Mix rosin ester, humic acid, distiller's grains with deinked waste paper pulp at a concentration of 5%, and then prepare a paper base film with a thickness of 20 μm by papermaking method.

[0037] The weight of the film is 37.3 g·m 2 , with a tear index of 7.70 mN•m 2 • g -1 , the burst index is 2.70 mN•m 2 • g -1 , w...

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Abstract

The invention discloses a waste paper-based mulching film and a preparation method thereof and belongs to the technical field of agricultural mulching film preparation. The preparation method comprises carrying out one-step de-inking and re-pulping on a rosin-based surfactant and hydrogen peroxide, mixing rosin ester, humic acid, vinasse and waste paper pulp, and preparing waste paper-based mulching films with different thickness values through a paper making method. The preparation method has simple processes, realizes a low cost, effectively utilizes the waste paper resource, and can prepareagricultural mulching films with different biodegradation rates through simple change of a raw material ratio. The degraded components provide nutrients for the growth of the crops and promote the growth of the crops. The waste paper-based mulching film has good mechanical properties, moisture retention performances and light transmission properties and has wide application prospects.

Description

technical field [0001] The invention discloses a degradable mulch film using office waste paper, waste newspaper, etc. as a base material and a preparation method thereof, belonging to the technical field of agricultural mulch film preparation. Background technique [0002] Agricultural mulching technology has remarkable effects in coping with agricultural natural disasters, expanding crop planting areas, and increasing crop yields. However, with the large-scale promotion and application of plastic mulch, the harm of plastic residues to the environment is also increasing. At present, the methods of dealing with plastic waste in the world include landfill, incineration, recycling and degradation, but these methods have some disadvantages, such as landfill, although the operation is simple and economical, but the degradation rate is low; incineration will produce a large amount of carbon dioxide and harmful gases, which is easy to Greenhouse effect and acid rain are formed; i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H27/00A01G13/02D21B1/32D21H17/23D21H17/62
CPCA01G13/0275D21B1/325D21H17/23D21H17/62D21H27/002Y02W30/64
Inventor 韩绍中贾庆明杨亚辉孙廷聪张开赋
Owner YUNNAN YUNJING FORESTRY & PULP MILL
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