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Preparation method of mulching film for crisp pear fruiting period

A technology for fruiting and mulching, which is applied in the field of mulching film preparation in the fruiting period of pears, can solve the problems of increased sugar accumulation, reduced yield of pears, poor taste of pears, etc., and achieves enhanced film-forming effect, reduced addition amount, improved soil effect

Active Publication Date: 2019-01-04
山东酷品智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The planting of pears has a special dependence on the soil. Sustained development of pears and stable growth of productivity must first ensure the persistence of good soil. Planting pears should try to choose soil with deep soil, fertile soil, and loose soil. And the use of sandy soil covering cultivation can effectively reduce the evaporation loss of soil water, alleviate the inhibitory effect of poor water on the growth of fruit trees, and promote the healthy growth of fruit trees. Sandy soil covering can also increase the temperature difference, effectively increase the accumulation of sugar in the fruit, and promote fruit growth. The quality is improved, but the sandy soil cover is not only a large project, but also the covered sand is easy to lose due to natural disasters. If it encounters windy, rainy and other harsh environments, the sandy soil will be lost, which will directly lead to a decrease in the yield of crispy pears, and the taste of the crispy pears obtained is also very poor.

Method used

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  • Preparation method of mulching film for crisp pear fruiting period
  • Preparation method of mulching film for crisp pear fruiting period
  • Preparation method of mulching film for crisp pear fruiting period

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for preparing mulch film for pear fruiting stage, including the following steps:

[0031] S1. Degrade 20kg of polylactic acid by irradiation, the irradiation dose is 0.46MGy, exhaust air, add 1kg sepiolite, 2kg silane coupling agent, grind to a particle size of 20-40μm, then add 3kg polyvinyl chloride wax Stir for 16min at a stirring speed of 4200r / min to obtain a preformed material;

[0032] S2. Stir 20kg preformed material and 22kg polyethylene succinate for 16min at a stirring speed of 1200r / min and a stirring temperature of 120℃, then heat to 140℃, and then add 2kg calcium stearate, 1kg zinc diacrylate, 2kg heat The stabilizer was stirred for 10 minutes, and then the temperature was raised to 164°C, 1kg of iron stearate and 20kg of medical stone powder were added, and the stirring was continued for 20 minutes, and then the temperature was lowered to room temperature at a speed of 5°C / min under stirring, and then the film was blown into a film. The temperature o...

Embodiment 2

[0034] A method for preparing mulch film for pear fruiting stage, including the following steps:

[0035] S1. Degrade 40kg of polylactic acid by irradiation, the irradiation dose is 0.40MGy, exhaust air, add 5kg sepiolite, 1kg silane coupling agent, grind to a particle size of 20-40μm, and then add 5kg polyvinyl chloride wax Stir for 10 minutes at a stirring speed of 4500r / min to obtain a preformed material;

[0036] S2. Stir 10kg of preformed material and 35kg polyethylene succinate for 10min at a stirring speed of 1400r / min and a stirring temperature of 100℃, then heat up to 148℃, and then add 1kg magnesium stearate, 2kg zinc diacrylate, 1kg heat The stabilizer was stirred for 20 minutes, and then the temperature was raised to 155°C. 2kg of 2-hydroxy-4-methylacetophenone oxime iron and 8kg of zeolite powder were added and stirred for 40 minutes, and then cooled to room temperature at a rate of 2°C / min under stirring. The film is blown into a film, and the temperature of the film...

Embodiment 3

[0038] A method for preparing mulch film for pear fruiting stage, including the following steps:

[0039] S1. Degrade 25kg of polylactic acid by irradiation, the irradiation dose is 0.44MGy, exhaust air, add 2kg of sepiolite, 1.8kg of silane coupling agent, grind to a particle size of 20-40μm, then add 3.5kg of polychloride Stir the ethylene wax for 14 minutes at a stirring speed of 4300r / min to obtain a preform;

[0040] S2. Stir 18kg of preformed material and 26kg of polyethylene succinate for 14min at a stirring speed of 1250r / min, stirring temperature of 115°C, and then heating to 142°C, then add 1kg magnesium stearate, 0.7kg calcium stearate, 1.2kg zinc diacrylate and 1.7kg heat stabilizer continue to stir for 13min, then heat to 162℃, add 1.4kg iron acetylacetonate, 10kg diatomaceous earth, 8kg medical stone powder and continue to stir for 25min, then at 4℃ / min under stirring The speed is reduced to room temperature, and the film is blown into a film. The temperature of the ...

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Abstract

The invention discloses a preparation method of mulching film for the crisp pear fruiting period. The preparation method comprises the following steps that irradiation degradation is carried out on polylactic acid, air exhaust and degassing are carried out, sepiolite and a silane coupling agent are added, grinding is carried out, then polyvinyl chloride wax is added, and stirring is carried out toobtain a prefabricated material; the prefabricated material and polyethylene succinate are stirred and then warmed up, a plasticizer, a cross-linking agent and a heat stabilizer are added for continuous stirring, then warming is carried out, a photoinitiator and filler are added for continuous stirring, then the stirring state is reduced to the room temperature, and film blowing is carried out toobtain the mulching film for the crisp pear fruiting period. The mulching film has the advantages that the tear resistance, shock resistance and mechanical property are excellent, the cultivation effect of sand field mulching can be simulated, the evaporation loss of soil moisture is effectively reduced, the growth of pear trees is promoted, the accumulation of sugar in crisp pears is effectivelypromoted, the quality of the crisp pears is improved, the mulching film can be fully degraded under the natural condition, the degraded components can serve as manure to return to nature and improvesoil, a loose and porous structure is formed, and the breathability and water permeability of the soil are improved.

Description

Technical field [0001] The invention relates to the technical field of agricultural mulch films, in particular to a method for preparing mulch films for pear fruiting stage. Background technique [0002] The crisp pear is originally produced in Dangshan, Anhui, and is the oldest local pear variety. It is juicy and crisp, rich in nutrition and pollution-free. The crisp pear contains sugar, minerals, organic acids and multiple vitamins and is extremely nutritious. It is a rare good product in fruit. In addition to fresh food, it can also be processed into pear wine, pear paste, pear sugar and canned food. It is an important raw material for the food industry. [0003] Crisp pears are rich in B vitamins, which can protect the heart, reduce fatigue, enhance myocardial vitality, and lower blood pressure. Crisp pears contain glycosides and tannic acid, which can expectorant and relieve cough, and have a protective effect on the throat; Pears also have more sugars and vitamins, which are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/06C08L67/04C08L27/06C08K13/02C08K3/34C08K5/098C08J5/18A01G13/02
CPCA01G9/1438C08J5/18C08J2367/06C08J2427/06C08J2467/04C08K3/346C08K5/098C08K13/02C08K2201/014
Inventor 严春兰翟情情
Owner 山东酷品智能科技有限公司
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