Preparation method of heat-resistant degradable material

A degradable material and heat-resistant technology, applied in the direction of layered products, etc., can solve problems such as damage, waste of resources, soil structure and composition hazards, and achieve the effect of improving heat resistance and reducing thermoplastic deformation

Inactive Publication Date: 2018-11-16
FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem mainly solved by the present invention is that when degradable materials are used in the field of agriculture, for example, agricultural film materials are disposable products made of petroleum synthetic resins, such as polyvinyl chloride, polypropylene, polyethylene, etc. Poor heat resistance, deformed or even damaged in heat-gathering parts in summer, and discarded as garbage after use, which greatly wastes resources. These plastic products take about 200 years to be decomposed, and the harmful substances produced during their processing Directly pollute the air and water sources, these agricultural film plastics have caused great harm to the soil structure and composition of the land, directly leading to a series of adverse consequences such as land production reduction, and provide a preparation method for heat-resistant and degradable materials

Method used

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  • Preparation method of heat-resistant degradable material

Examples

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Effect test

example 1

[0025] In parts by weight, add 2 parts of sodium lauryl sulfate, 3 parts of polyethylene glycol octyl phenyl ether, 8 parts of sodium bicarbonate and 80 parts of deionized water into a reflux condenser, agitator, drip Place the four-necked flask in a liquid funnel and place the four-necked flask in a water bath, heat to 80°C, start the stirrer, and stir at 500r / min until the solid content in the four-necked flask is completely dissolved to obtain a dispersion solvent ; Mix the masses of methyl methacrylate and butyl acrylate to obtain a mixed monomer, configure a 40% mass fraction of ammonium persulfate aqueous solution as an initiator, in parts by weight, drop 3mL / min through a dropping funnel Addition rate First add 14 parts of mixed monomers to the above four-necked flask, stir for 2 minutes, add 2 parts of initiator to the four-necked flask, react for 10 minutes, mix 30 parts of mixed monomers and 4 parts of initiator, Obtain the mixed solution; add the mixed solution dropw...

example 2

[0027] In parts by weight, add 3 parts of sodium lauryl sulfate, 4 parts of polyethylene glycol octyl phenyl ether, 9 parts of sodium bicarbonate and 85 parts of deionized water into a reflux condenser, agitator, drip Place the four-necked flask in a water bath, heat to 82°C, start the stirrer, and stir at 520r / min until the solid content in the four-necked flask is completely dissolved and the dispersion solvent is obtained. ; Mix the mass of methyl methacrylate and butyl acrylate to obtain a mixed monomer, configure a 40% mass fraction of ammonium persulfate aqueous solution as the initiator, in parts by weight, drop 4mL / min through the dropping funnel Addition rate First add 15 parts of mixed monomers to the above four-necked flask, stir for 3 minutes, add 2 parts of initiator to the four-necked flask, and after reacting for 11 minutes, mix 32 parts of mixed monomers and 5 parts of initiator. Obtain the mixed solution; add the mixed solution dropwise to the four-necked flask...

example 3

[0029] In parts by weight, add 4 parts of sodium lauryl sulfate, 5 parts of polyethylene glycol octyl phenyl ether, 10 parts of sodium bicarbonate and 90 parts of deionized water into a reflux condenser, agitator, and Place the four-necked flask in the water-bath, heat to 85°C, start the stirrer, and stir at 550r / min until the solid content in the four-necked flask is completely dissolved to obtain a dispersion solvent ; Mix the mass of methyl methacrylate and butyl acrylate to obtain a mixed monomer, configure a 40% mass fraction of ammonium persulfate aqueous solution as an initiator, in parts by weight, through a dropping funnel with a drop of 5mL / min Addition rate: First add 16 parts of mixed monomer to the above four-necked flask, stir for 4 minutes, add 3 parts of initiator to the four-necked flask, and after reacting for 12 minutes, mix 33 parts of mixed monomer and 6 parts of initiator. Obtain the mixed solution; add the mixed solution dropwise to the four-necked flask ...

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Abstract

The invention discloses a preparation method of a heat-resistant degradable material and belongs to the technical field of preparation of environment-friendly materials. When aluminum powder and PVC (polyvinyl chloride) resin are mixed in a double-roll warming machine, aluminum powder fills the inside of a resin body and can enhance the strength of a PVC film; the melting point of aluminum powderparticles is higher, firstly, starch in a modified glue film is easily decomposed into monosaccharide in the long-time exposure process, and the crosslinking point of acrylic ester can be damaged after decomposition. A mixed film solution contains chitosan and polyvinyl alcohol, a main chain of chitosan contains easily hydrolytic ester bonds which easily absorb water to be hydrolyzed in soil, absorbed micromolecular water moves to the surface of a film coating material and enters the periphery of a hydrophilic group or ester bonds in a dispersion manner. After the degradable material is degraded in soil, the adsorption capability of the soil for nutritional elements is improved, held inorganic nutrients are released, inorganic salt particles are preserved in a net-shaped structure of a water-absorbing high polymer and have moisture and fertilizer retention functions on the oil, and the application prospects are broad.

Description

Technical field [0001] The invention discloses a preparation method of a heat-resistant degradable material, which belongs to the technical field of environmental protection material preparation. Background technique [0002] The degradable material chamber is a material that can be degraded in the sense of thermodynamics and kinetics within a period of time. According to the external factors of degradation, it can be divided into: photodegradable materials, biodegradable materials, etc. The influencing factors mainly include temperature, molecular weight, and material structure. According to the external factors of degradation, it can be divided into: photodegradable materials: degraded due to the action of sunlight; biodegradable materials: degraded due to the action of natural microorganisms such as fungi and bacteria, and finally decomposed into carbon dioxide and water; environmentally degradable materials : Degradation under natural environmental conditions such as light, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B33/00C08F220/14C08F220/18
CPCB32B27/304B32B27/308B32B33/00B32B2250/03B32B2250/24B32B2250/40B32B2307/716C08F220/14C08F220/1804
Inventor 刘茂龙邓博朱彩娣
Owner FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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