High-barrier full-biodegrade mulching film and preparation method thereof

A biodegradable mulch film, all-biological technology, applied in the field of biodegradable mulch film, can solve the problems of poor barrier property and low tear strength of fully biodegradable mulch film, and achieve the effects of increased burden, good barrier property, and easy opening of mucous membranes.

Active Publication Date: 2016-12-14
SHENZHEN HONGCAI NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, to provide a fully biodegradable agricultural mulch film with high barrier and tear resistance, so as to improve the shortcomings of poor barrier property and low tear strength of the fully biodegradable mulch film in the prior art, While endowing the film with high barrier properties and biodegradation controllability, it also has good mechanical and mechanical properties

Method used

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  • High-barrier full-biodegrade mulching film and preparation method thereof
  • High-barrier full-biodegrade mulching film and preparation method thereof
  • High-barrier full-biodegrade mulching film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] In this embodiment, a high-barrier fully biodegradable mulch film consists of the following components by weight:

[0063] PHBH 20 parts

[0064] 65 copies of PBAT

[0065] PPC 15 copies

[0066] 3 TECs

[0067] Talcum powder 6 parts

[0068] UV 531 1 part

[0069] ADR-4380 0.8 parts

[0070] Polyethylene wax 0.3 parts

[0071] Antioxidant 1010 1 part

[0072] EBS 0.2 copies

[0073] 0.042 parts of coupling agent.

[0074] Wherein, the number-average molecular weight of the PHBH is 600,000, and the ratio of 3-hydroxybutyric acid to 3-hydroxyhexanoic acid in PHBH is 89 / 9; the viscosity-average molecular weight of the PPC is 110,000; the viscosity-average molecular weight of the PBAT is The molecular weight is 80,000; the particle size of talcum powder is ≥2000 mesh.

[0075] The thickness of the high-barrier fully biodegradable mulch film in this example is 10 μm.

[0076] A method for preparing a high-barrier fully biodegradable mulch film of this embodiment ...

Embodiment 2

[0088] In this embodiment, a high-barrier fully biodegradable mulch film consists of the following components by weight:

[0089] PHBH 30 parts

[0090] 45 copies of PBAT

[0091] PPC 25 copies

[0092] Talc powder 5 parts

[0093] ATBC 3 copies

[0094] UV 531 0.8 parts

[0095] ADR-4300 0.5 parts

[0096] 1 part oleic acid amide

[0097] Antioxidant 1076 0.1 parts

[0098] Antioxidant 168 0.1 parts

[0099] 0.5 parts of ethylene bis stearic acid amide,

[0100] 0.02 parts of coupling agent.

[0101] Wherein, the number-average molecular weight of the PHBH is 760,000, and the ratio of 3-hydroxybutyric acid and 3-hydroxyhexanoic acid is 89 / 11; the viscosity-average molecular weight of the PPC is 90,000; the viscosity-average molecular weight of the PBAT is 55,000; talcum powder particle size ≥ 2000 mesh.

[0102] The thickness of the high-barrier fully biodegradable mulch film in this example is 12 μm.

[0103] A method for preparing a high-barrier fully biodegrada...

Embodiment 3

[0114] In this embodiment, a high-barrier fully biodegradable mulch film consists of the following components by weight:

[0115] PHBH 25 parts

[0116] 50 copies of PBAT

[0117] PPC 25 copies

[0118] ATBC 4 copies

[0119] Talcum powder 8 parts

[0120] UV 531 1.2 parts

[0121] ADR-4370 0.3 parts

[0122] Oleic acid amide 0.5 parts

[0123] Antioxidant 1010 0.2 parts

[0124] Antioxidant 126 0.2 parts

[0125] Polyethylene wax 0.3 parts

[0126] Zinc stearate 0.3 parts

[0127] 0.08 parts of coupling agent.

[0128] Wherein, the number-average molecular weight of the PHBH is 900,000, and the ratio of 3-hydroxybutyric acid and 3-hydroxyhexanoic acid is 94 / 6; the viscosity-average molecular weight of the PPC is 140,000; the viscosity-average molecular weight of the PBAT is 120,000; the particle size of talcum powder is ≥2000 mesh.

[0129] The thickness of the high-barrier fully biodegradable mulch film in this embodiment is 12 μm.

[0130] A method for preparing ...

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Abstract

The invention relates to the technical field of biodegrade mulching films, in particular to a high-barrier full-biodegrade mulching film and a preparation method thereof. The mulching film is prepared from, by weight, 15-40 parts of PPC, 25-65 parts of PBAT, 10-47 parts of PHBH, 3-10 parts of plasticizer, 3-8 parts of inorganic filler, 0.2-1 part of crosslinking agent, 0.1-1.2 parts of light stabilizer, 0.1-1.2 parts of antioxidant, 0.3-2 parts of lubricant and 0.015-0.08 part of coupling agent, wherein the coupling agent is 0.5-1% of the inorganic filler in weight. The preparation method comprises the steps of filler surface treatment, material drying, mixing, melt extruding for granulation and blow inflation for molding. The PHBH, the PPC and the PBAT in the mulching film are compounded and blended, the components complement each other's advantages, the barrier property is good, the mechanical mechanics performance, use effect and heat preservation and moisturizing properties can meet the requirements of general mulching films, the high-barrier full-biodegrade mulching film can be decomposed completely within 1 year and is simple in preparation process.

Description

technical field [0001] The invention relates to the technical field of biodegradable mulch, in particular to a high-barrier fully biodegradable mulch and a preparation method thereof. Background technique [0002] In the early 1950s, Japan was the first to promote the cultivation technology of plastic film mulching. Since 1978, my country has introduced the cultivation technology of plastic film covering from Japan, which has greatly improved the yield of crops. Especially in recent years, the successful promotion and application of drip irrigation technology under plastic film has made further progress. It has promoted the rapid development of mulching technology. [0003] Because the mulch film has the function of heat preservation and moisturizing, while increasing production and income, it also brings flooding white pollution. After agricultural mulch is discarded, it is generally picked up and incinerated or turned over to the ground to cover it. The accumulation of non...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L69/00C08L67/02C08K13/06C08K9/06C08K3/34C08K3/36C08K3/26
CPCC08J5/18C08J2367/02C08J2367/04C08J2467/02C08J2467/04C08K2201/014C08L67/02C08L67/04C08L2201/06C08L2203/16C08L2205/02C08L2205/035C08L69/00C08K13/06C08K9/06C08K3/34C08K2003/265C08K3/36
Inventor 吴丽珍杨宏李积迁郭建李建平
Owner SHENZHEN HONGCAI NEW MATERIAL TECH
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