Double-degradable environmental protecting mulching film and manufacturing method thereof

A degradable plastic film and double-degradation technology, which is applied in botany equipment and methods, plant protection, plant protection cover, etc., can solve the problem of slow degradation of additive-type degradable plastic film buried in soil, short incubation period of compost-type degradation plastic film, and inability to meet the heat preservation and moisture conservation requirements of crops Requirements and other issues to achieve the effect of reducing environmental pollution

Inactive Publication Date: 2015-11-25
陆海荣 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the compostable degradable mulch film has a short incubation period and cannot meet the requirements of heat preservation and moisture conservation of crops; the additive-type degradable mulch film partially degrades slowly in the buried soil, the present invention proposes a dual-degradable environmentally friendly mulch film and its manufacturing method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The components and dosage (percentage by weight) of the additive-type degradable mulch film are shown in Table 1:

[0029] components Dosage (%) Linear Low Density Polyethylene (LLDPE) Model 1802 90 Low Density Polyethylene (LDPE) Type 18D 9.38 Iron Dimethyl Dithiocarbamate 0.02 triisooctyl phosphite 0.1 talcum powder 0.5

[0030] The components and dosage (percentage by weight) of the compostable degradable plastic film on both sides are shown in Table 2:

[0031] components Dosage (%) Linear Low Density Polyethylene (LLDPE) Model 1802 18 Low Density Polyethylene (LDPE) Type 18D 1.98 Iron Dimethyl Dithiocarbamate 0.01 triisooctyl phosphite 0.01 Polybutylene succinate / adipate (PBSA) 80

[0032] In the formulas of Table 1 and Table 2, iron dimethyl dithiocarbamate and triisooctyl phosphite are powdery.

[0033] Double extruder blow molding equipment is used to mix the additive-ty...

Embodiment 2

[0039] The components and dosage (percentage by weight) of the additive-type degradable mulch film are shown in Table 3:

[0040] components Dosage (%) Linear Low Density Polyethylene (LLDPE) Model 1002KW 90 Low Density Polyethylene (LDPE) Model Q200 9.28 Iron stearate 0.02 4,4'-methylenebis(2,6-di-tert-butylphenol) 0.2 talcum powder 0.5

[0041] The components and dosage (percentage by weight) of the compostable degradable plastic film on both sides are shown in Table 4:

[0042] components Dosage (%) Linear Low Density Polyethylene (LLDPE) Model 1002KW 28 Low Density Polyethylene (LDPE) Model Q200 1.96 Iron stearate 0.02 4,4'-methylenebis(2,6-di-tert-butylphenol) 0.02 Polyadipate / butylene terephthalate (PBAT) 70

[0043] In the formulations of Table 3 and Table 4, iron stearate and 4,4'-methylene bis(2,6-di-tert-butylphenol) are in powder form.

[0044] The preparation method is the ...

Embodiment 3

[0046] The components and dosage (percentage by weight) of the additive-type degradable mulch film are shown in Table 5:

[0047] components Dosage (%) Linear Low Density Polyethylene (LLDPE) Model LL101AA 90 Low Density Polyethylene (LDPE) Model LD155 9.18 Praseodymium octanoate 0.02 1-Hydroxy-3-methyl-4-isopropylbenzene 0.3 diatomite 0.5

[0048] The components and dosage (percentage by weight) of the compostable degradable plastic film on both sides are shown in Table 6:

[0049] components Dosage (%) Linear Low Density Polyethylene (LLDPE) Model 3305 37.92 Low Density Polyethylene (LDPE) Model TN37 2 Lanthanum laurate 0.04 1,1,3-tris(2-methyl-4-hydroxy-5-tert-butylphenyl)butane 0.04 Polylactic acid (PLA) 60

[0050] In the formulations of Table 5 and Table 6, praseodymium octanoate, 1-hydroxy-3-methyl-4-isopropylbenzene, lanthanum laurate and 1,1,3-tris(2-methyl-4-hydroxy-5 - tert-...

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Abstract

The invention relates to a double-degradable mulching film, comprising an additive type degradable mulching film and compostable degradable mulching films arranged on two sides of the additive type degradable mulching film. The invention also relates to a specific recipe and a manufacturing method. The mulching film and the manufacturing method solve problems that the buried part of the additive type degradable mulching film is slow in degradation, and is not environmentally-protecting, and the compostable degradable mulching film is short in incubation and cannot satisfy heat insulation and soil moisture preservation requirements of crops.

Description

technical field [0001] The invention relates to the technical field of agricultural mulch, in particular to a double-degradable environmental-friendly mulch and a preparation method thereof. Background technique [0002] Plastic film has become the most important means of production in China's agricultural production. In 2014, the amount of plastic film used in China exceeded 1.3 million tons, and more than 300 million mu of cultivated land needed to be covered with plastic film. However, the traditional plastic film cannot be degraded, and the residue of the plastic film in the farmland causes white pollution. More and more attention has been paid to the development of degradable mulch films suitable for farmers' farming habits and crop growth laws. [0003] There are two types of degradable mulch technologies commonly used. One is compostable degradable mulch technology (also known as hydrolytic biodegradation technology). According to the requirements of American stand...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/02C08L23/08C08L23/06C08L67/02C08L67/04
CPCA01G13/0262C08J5/18C08J2300/00C08J2303/02C08J2323/08C08J2329/04C08J2367/02C08J2367/04C08L3/02C08L23/0815C08L29/04C08L67/02C08L67/04C08L101/00C08L2201/06C08L2203/16C08L2205/025C08L2205/03C08L2205/035C08L2207/066C08L23/06C08L69/00Y02A40/28
Inventor 陆海荣
Owner 陆海荣
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