Environment-friendly mulch film capable of realizing sowing and preparation method thereof

A kind of mulching film and environmental protection technology, applied in the field of film products, can solve the problems of uncontrollable degradation cycle, increase of manpower and material resources, low reuse rate, etc., achieve the best biological/photocombined degradation function, reduce labor force, and completely degrade the effect

Inactive Publication Date: 2018-04-20
GUANGZHOU MBS COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The recycling of plastic film requires a lot of manpower and material resources, the cost is high, and the recycling rate is low
However, the existing degradable mulch still has problems such as high cost, poor durability, low strength, incomplete degradation, and uncontrollable degradation cycle.
In addition, the traditional mulch needs to be covered after sowing, which increases the manpower and material resources for sowing.

Method used

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  • Environment-friendly mulch film capable of realizing sowing and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A kind of environment-friendly mulch film that can be sown in this embodiment, such as figure 1 As shown, it includes an adhesion-promoting biodegradable film layer 100, a compatible layer 200 and a photodegradable film layer 300;

[0032] Wherein, the thickening biodegradable film layer 100, in parts by weight, includes raw material components: 10 parts of PIB masterbatch, 90 parts of PLA;

[0033] Compatible layer 200, in parts by weight, includes raw material components: 70 parts of LLDPE resin, 30 parts of maleic anhydride grafted LLDPE;

[0034] Photodegradable film layer 300, in parts by weight, includes raw material components: 70 parts of composite resin (LLDPE / LDPE / mPE mass fraction ratio is 3:1:1), 20 parts of 1500 mesh active calcium carbonate, composite photodegradant grease Cerium oxide / TiO 2 1 part, PE wax 1 part.

[0035] The preparation method of above-mentioned sowing environment-friendly mulch film, comprises the steps:

[0036] After mixing the r...

Embodiment 2

[0038] In this embodiment, a seedable environmental protection mulch film includes a thickening biodegradable film layer, a compatible layer and a photodegradable film layer;

[0039] Wherein, the thickening biodegradable film layer includes raw material components in parts by weight: 20 parts of EVA, 80 parts of PBS;

[0040] The compatible layer, in parts by weight, includes raw material components: 90 parts of LLDPE resin, 10 parts of maleic anhydride grafted LLDPE;

[0041] The photodegradable film layer, in parts by weight, includes raw material components: 40 parts of composite resin (LLDPE / LDPE / mPE mass ratio is 4:1:1), 50 parts of 2500 mesh active calcium carbonate, composite photodegradant grease Cerium oxide / TiO 2 0.4 parts, PE wax 3 parts.

[0042] The preparation method of the above-mentioned seedable environment-friendly mulch film is the same as that in Example 1.

Embodiment 3

[0044] In this embodiment, a seedable environmental protection mulch film includes a thickening biodegradable film layer, a compatible layer and a photodegradable film layer;

[0045] Wherein, the thickened biodegradable film layer includes raw material components in parts by weight: 20 parts of PIB thickened masterbatch, 90 parts of PBAT;

[0046] The compatible layer, in parts by weight, includes raw material components: 80 parts of LDPE resin, 20 parts of maleic anhydride grafted LDPE;

[0047] The photodegradable film layer, in parts by weight, includes raw material components: 60 parts of composite resin (LLDPE / LDPE / mPE mass ratio is 3:1:1), 40 parts of 2000 mesh active calcium carbonate, composite photodegradant grease Ferric acid / TiO 2 0.6 parts, 2 parts of stearic acid.

[0048] The preparation method of the above-mentioned seedable environment-friendly mulch film is the same as that in Example 1.

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Abstract

The invention relates to an environment-friendly mulch film capable of realizing sowing and a preparation method thereof. The environment-friendly mulch film capable of realizing sowing comprises a photodegradable film layer, a compatible layer and a tackifying biodegradable film layer which are successively laminated. The tackifying biodegradable film layer comprises the following raw materials by weight: 10 to 20 parts of a tackifier and 80 to 90 parts of aliphatic polyester resin. The compatible layer comprises the following raw materials by weight: 70 to 90 parts of polyethylene resin and10 to 30 parts of a compatilizer. The photodegradable film layer comprises the following raw materials by weight: 40 to 70 parts of composite resin, 20 to 50 parts of a filling material, 0.4 to 1 partof a photodegradation agent and 1 to 3 parts of a lubricant. The environment-friendly mulch film can carry and adhere to plant seeds, and sowing can be realized through covering of the mulch film. Meanwhile, the mulch film has a composite degradation function and can be degraded during the growth of plants, so cost for manual recovery is reduced and no pollution is produced.

Description

technical field [0001] The invention relates to the technical field of film products, in particular to a seedable environmental-friendly mulch film and a preparation method thereof. Background technique [0002] Plastic film mulching is an agricultural cultivation technology, which has the functions of increasing temperature and moisture conservation, preventing diseases and insects, and suppressing weeds, and has a significant effect of increasing production. It has been widely used in my country. According to statistics, in 2015, the national plastic film usage exceeded 1.441 million tons, covering an area of ​​more than 350 million mu. Existing experiments and application results have also shown that plastic film mulching technology can increase the yield of grain crops by 20% to 35%, and the yield of economic crops by 20% to 60%. It brought about changes in agricultural production methods, known as the "White Revolution". Although plastic film mulching technology has h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/18B32B27/08B32B27/32B32B27/06A01G13/02C08L67/06C08L23/20C08L67/02C08L23/08C08L51/06C08L23/06C08K5/098C08K3/22
CPCA01G13/0275B32B27/08B32B27/18B32B27/32B32B27/327B32B27/36B32B2307/304B32B2307/716B32B2307/7163B32B2307/7265B32B2410/00C08K2003/2241C08L23/0815C08L67/02C08L67/04C08L2201/06C08L2203/16C08L2205/025C08L2205/035C08L23/22C08L51/06C08L23/06C08K5/098C08K3/22C08L23/0853Y02A40/28
Inventor 曾聪李彦涛覃宏宇
Owner GUANGZHOU MBS COMPANY
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