CN102558713B - Nanometer bi-layer film biogas digester material and preparation method thereof - Google Patents
Nanometer bi-layer film biogas digester material and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a nanometer bi-layer film biogas digester material, which is composed of the following components: PVC (polyvinyl chloride) resin, DOP (Dioctyl-Phthalate), DBP (dibutyl phthalate), a stabilizing agent, an antioxidant, an anti-UV (ultraviolet) agent, nano calcium carbonate, modified red mud and other accessory ingredients, wherein the components are subjected to the calendering technology, the fitting technology and the surface treatment technology, and two groups of single-surface surface-treated single-layer biogas digester materials are combined to obtain the bi-layer biogas digester material. The nanometer bi-layer film biogas digester material has the advantages that nano calcium carbonate and the modified red mud are adopted to serve as filling agents, thus the weather resistance, the aging resistance and the like of a PVC film are improved and the service life of the bi-layer film biogas digester material is prolonged; the acrylate coating is used for surface treatment, thus the weather resistance and the aging resistance of the bi-layer film biogas digester material are improved; and because of adopting the bi-layer film structure, the inner-layer film has excellent air impermeability and chemical corrosion resistance, and the outer-layer film has good physical and mechanical property and aging resistance so as to prevent the inner-layer film from being damaged by the external environment.
Description
Technical field
The present invention relates to methane-generating pit material, relate in particular to a kind of nanometer bi-layer film biogas digester material and preparation method thereof.
Background technology
It is main raw material that current methane-generating pit material generally adopts PVC polyvinyl chloride (PVC) RESINS, then adds the fillers such as various stablizers, antioxidant and be prepared from.Affect the performance such as tensile strength, elongation at break, weathering resistance of PVC polyvinyl chloride (PVC) RESINS product adding of the fillers such as various stablizers, antioxidant, thereby affected the work-ing life of methane-generating pit material.Meanwhile, current methane-generating pit material is generally single layer structure, and outside surface, with atmosphere contact, requires methane-generating pit material to have good physical and mechanical properties and resistance to deterioration; And internal surface is with strong gas Long Term Contacts of corrodibility such as the methane in biogas, hydrogen sulfide, require methane-generating pit material resistance to air loss good, and corrosion-resistant, this has just proposed very high requirement to methane-generating pit material, and current individual layer methane-generating pit material is difficult to reach above requirement.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide a kind of physical and mechanical properties, resistance to deterioration and resistance to air loss good, and corrosion resistant nanometer bi-layer film biogas digester material and preparation method thereof.
Technical scheme of the present invention is: the preparation method of nanometer bi-layer film biogas digester material of the present invention, and the component of described methane-generating pit material and parts by weight thereof are:
100 parts of PVC polyvinyl chloride (PVC) RESINS;
DOP dioctyl phthalate (DOP) 15-25 part;
20 parts of DBP dibutyl phthalates;
Stablizer 3-4 part;
Oxidation inhibitor 0.1-0.2 part;
Anti-UV agent 0.4-0.6 part;
Nano-calcium carbonate 10-20 part;
Modification red soil 20-30 part;
Other auxiliary agents 1-2 part;
Described preparation method comprises the following steps:
Step 1, calendering technology: first PVC polyvinyl chloride (PVC) RESINS, DOP dioctyl phthalate (DOP), DBP dibutyl phthalate, stablizer, oxidation inhibitor, anti-UV agent, nano-calcium carbonate, modification red soil and other auxiliary agents are added to calendering formation in calendering formation machine, obtain laminating film;
Step 2, attaching process: take polyester screen cloth as middle layer, respectively establish up and down the laminating film that one deck is prepared by step 1, middle layer trevira screen cloth is through dipping, dry, after plasticizing, synchronous and levels laminating film sends frame by film and is sent in rigging machine, at 130-140 ℃ fully after preheating, by upper strata laminating film, polyester screen cloth, the order of lower floor's laminating film is combined three laminatings, upper strata laminating film contacts with grain roller, lower floor's laminating film contacts with rubber rollers, during laminating, between two rollers, pressurize, under the binding temperature of 160-170 ℃, nearly the levels laminating film of molten state and polyester screen cloth fit together, laminate pressure is 35-45Kgf, doubling roller speed 4-6m/min,
Step 3, process of surface treatment: after the cooling trimming of trilamellar membrane that step 2 is obtained, carry out monoplanar surface processing, heating, drying at 80 ℃ then, obtains the methane-generating pit material of the individual layer that monoplanar surface processes;
Step 4, the individual layer methane-generating pit combination of materials that two groups of monoplanar surface are processed are used and obtain double-layer methane tank material.
Described stablizer is a kind of in following: barium, zinc composite stabilizer or methyl mercaptan tin heat stabilizer.Wherein, barium, zinc composite stabilizer are commercially available prod, purchase in Changzhou Jia Ren standing grain Chemical Co., Ltd., and the trade mark is CRV-301.
Described oxidation inhibitor is a kind of in following: four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (antioxidant 1010) or tri-grades of butyl-4-methylphenols of 2,6-.
Described anti-UV agent is a kind of in following: Octabenzone (UV-531) or single phenylformic acid resorcinol (RMB).
Described other auxiliary agents are colorant.
[0010]calendering formation temperature in described step 1 is 170-180 ℃, and pulling speed is 28-35m/min.
In described step 2, the concrete operations of middle layer trevira screen cloth dipping, oven dry, plasticizing are: by after middle layer trevira screen cloth dipping E-PVC paste solution, at 140 ℃, dry plastics processing 2-3min, paste viscosity is 2500-3500 mPas.
Surface treatment operations in described step 3 is: adopt esters of acrylic acid surface treatment agent, coating adopts roller coat to scrape method technique, the trilamellar membrane list surface coated layer protective layer obtaining in step 2.
The individual layer methane-generating pit material that in described step 4, two groups of monoplanar surface are processed is when being used in combination, and all outwardly, and two groups of methane-generating pit storerooms have air pressure and form cavity the surface treatment face of two groups of methane-generating pit materials.
Advantage of the present invention is:
(1) select nano-calcium carbonate and modification red soil as weighting agent, overcome filler methane-generating pit tensile strength of material, elongation at break have been affected to large shortcoming, guarantee that methane-generating pit material has good physical and mechanical properties, improve the performance such as weathering resistance, resistance to deterioration of PVC film simultaneously, and then extended the work-ing life of duplicature methane-generating pit material.
(2) select esters of acrylic acid coating to carry out surface treatment to duplicature methane-generating pit material, overcome plasticizer migration volatilization in duplicature methane-generating pit material, the shortcoming that causes duplicature methane-generating pit material to harden and become fragile has improved the weather-proof ageing resistance of duplicature methane-generating pit material simultaneously.
(3) methane-generating pit material of the present invention adopts double membrane structure; theca interna has the advantages such as excellent resistance to air loss, chemical resistance; can meet the performance requriements of biogas fermentation, storage; and adventitia has good physical and mechanical properties and resistance to deterioration; protection inner membrance is not destroyed by external environment, has extended the work-ing life of biogas material.
(4) preparation method's technique of the present invention is simple; easy to operate; select the polyester screen cloth of dip treating as middle strongthener; given duplicature methane-generating pit material of the present invention good over-all properties; inner membrance in duplicature methane-generating pit material and outer intermembranous formation cavity; guarantee certain pressure, make adventitia keep definite shape protection inner membrance.
Embodiment
Below in conjunction with embodiment, the present invention is further detailed explanation.
The preparation method of nanometer bi-layer film biogas digester material of the present invention, the component of described methane-generating pit material and parts by weight thereof are:
100 parts of PVC polyvinyl chloride (PVC) RESINS;
DOP dioctyl phthalate (DOP) 15-25 part;
20 parts of DBP dibutyl phthalates;
Stablizer 3-4 part;
Oxidation inhibitor 0.1-0.2 part;
Anti-UV agent 0.4-0.6 part;
Nano-calcium carbonate 10-20 part;
Modification red soil 20-30 part;
Other auxiliary agents 1-2 part.
The preparation method of described nanometer bi-layer film biogas digester material comprises the following steps:
Step 1, calendering technology: first PVC polyvinyl chloride (PVC) RESINS, DOP dioctyl phthalate (DOP), DBP dibutyl phthalate, stablizer, oxidation inhibitor, anti-UV agent, nano-calcium carbonate, modification red soil and other auxiliary agents are added to calendering formation in calendering formation machine, obtain laminating film;
Step 2, attaching process: take polyester screen cloth as middle layer, respectively establish up and down the laminating film that one deck is prepared by step 1, middle layer trevira screen cloth is through dipping, dry, after plasticizing, synchronous and levels laminating film sends frame by film and is sent in rigging machine, at 130-140 ℃ fully after preheating, by upper strata laminating film, polyester screen cloth, the order of lower floor's laminating film is combined three laminatings, upper strata laminating film contacts with grain roller, lower floor's laminating film contacts with rubber rollers, during laminating, between two rollers, pressurize, under the binding temperature of 160-170 ℃, nearly the levels laminating film of molten state and polyester screen cloth fit together, laminate pressure is 35-45Kgf, doubling roller speed 4-6m/min,
Step 3, process of surface treatment: after the cooling trimming of trilamellar membrane that step 2 is obtained, carry out monoplanar surface processing, heating, drying at 80 ℃ then, obtains the methane-generating pit material of the individual layer that monoplanar surface processes;
Step 4, the individual layer methane-generating pit combination of materials that two groups of monoplanar surface are processed are used and obtain double-layer methane tank material.
Embodiment 1
Component and the weight of individual layer methane-generating pit material are:
PVC polyvinyl chloride (PVC) RESINS 100 kg;
DOP dioctyl phthalate (DOP) 15 kg;
DBP dibutyl phthalate 20 kg;
Barium, zinc composite stabilizer 3 kg;
Oxidation inhibitor four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester 0.1 kg;
Anti-UV agent Octabenzone 0.4 kg;
Nano-calcium carbonate 10 kg;
Modification red soil 20 kg;
Colorant 1 kg.
The preparation method of described nanometer bi-layer film biogas digester material comprises the following steps:
Step 1, calendering technology: first PVC polyvinyl chloride (PVC) RESINS, DOP dioctyl phthalate (DOP), DBP dibutyl phthalate, stablizer, oxidation inhibitor, anti-UV agent, nano-calcium carbonate, modification red soil and other auxiliary agents are added to calendering formation in calendering formation machine, obtain laminating film; Calendering formation temperature is 170 ℃, and pulling speed is 28m/min.
Step 2, attaching process: take polyester screen cloth as middle layer, respectively establish up and down the laminating film that one deck is prepared by step 1, middle layer trevira screen cloth first floods after E-PVC paste solution 2-3s, at 140 ℃, dry plastics processing 2-3min, paste viscosity is 2500mPas, pretreated trevira screen cloth is synchronous and levels laminating film is sent in rigging machine by film transmission frame again, at 130 ℃ fully after preheating, by upper strata laminating film, polyester screen cloth, the order of lower floor's laminating film is combined three laminatings, upper strata laminating film contacts with grain roller, lower floor's laminating film contacts with rubber rollers, during laminating, between two rollers, pressurize, under the binding temperature of 170 ℃, nearly the levels laminating film of molten state and polyester screen cloth fit together, laminate pressure is 40Kgf, doubling roller speed 5m/min,
Step 3, process of surface treatment: after the cooling trimming of trilamellar membrane that step 2 is obtained, carry out monoplanar surface processing; adopt esters of acrylic acid surface treatment agent; coating adopts roller coat to scrape method technique; the trilamellar membrane list surface coated layer protective layer obtaining in step 2; then heating, drying at 80 ℃, obtains the methane-generating pit material of the individual layer that monoplanar surface processes.
Step 4, the individual layer methane-generating pit combination of materials that two groups of monoplanar surface are processed are used, and all outwardly, and two groups of methane-generating pit storerooms have air pressure and form cavity the surface treatment face of two groups of methane-generating pit materials, obtain nanometer double-layer methane tank material.
Embodiment 2
Component and the weight of individual layer methane-generating pit material are:
PVC polyvinyl chloride (PVC) RESINS 100 kg;
DOP dioctyl phthalate (DOP) 25 kg;
DBP dibutyl phthalate 20 kg;
Barium, zinc composite stabilizer 4 kg;
Oxidation inhibitor 2, tri-grades of butyl-4-methylphenol 0.2 kg of 6-;
Anti-UV agent list phenylformic acid resorcinol 0.6 kg;
Nano-calcium carbonate 20 kg;
Modification red soil 30 kg;
Colorant 2 kg.
The preparation method of described nanometer bi-layer film biogas digester material comprises the following steps:
Step 1, calendering technology: first PVC polyvinyl chloride (PVC) RESINS, DOP dioctyl phthalate (DOP), DBP dibutyl phthalate, stablizer, oxidation inhibitor, anti-UV agent, nano-calcium carbonate, modification red soil and other auxiliary agents are added to calendering formation in calendering formation machine, obtain laminating film; Calendering formation temperature is 180 ℃, and pulling speed is 35m/min.
Step 2, attaching process: take polyester screen cloth as middle layer, respectively establish up and down the laminating film that one deck is prepared by step 1, middle layer trevira screen cloth first floods after E-PVC paste solution 2-3s, at 140 ℃, dry plastics processing 2-3min, paste viscosity is 3500 mPas, pretreated trevira screen cloth is synchronous and levels laminating film is sent in rigging machine by film transmission frame again, at 140 ℃ fully after preheating, by upper strata laminating film, polyester screen cloth, the order of lower floor's laminating film is combined three laminatings, upper strata laminating film contacts with grain roller, lower floor's laminating film contacts with rubber rollers, during laminating, between two rollers, pressurize, under the binding temperature of 160 ℃, nearly the levels laminating film of molten state and polyester screen cloth fit together, laminate pressure is 35Kgf, doubling roller speed 4m/min,
Step 3, process of surface treatment: after the cooling trimming of trilamellar membrane that step 2 is obtained, carry out monoplanar surface processing; adopt esters of acrylic acid surface treatment agent; coating adopts roller coat to scrape method technique; the trilamellar membrane list surface coated layer protective layer obtaining in step 2; then heating, drying at 80 ℃, obtains the methane-generating pit material of the individual layer that monoplanar surface processes.
Step 4, the individual layer methane-generating pit combination of materials that two groups of monoplanar surface are processed are used, and all outwardly, and two groups of methane-generating pit storerooms have air pressure and form cavity the surface treatment face of two groups of methane-generating pit materials, obtain nanometer double-layer methane tank material.
Embodiment 3
Component and the weight of individual layer methane-generating pit material are:
PVC polyvinyl chloride (PVC) RESINS 100 kg;
DOP dioctyl phthalate (DOP) 20 kg;
DBP dibutyl phthalate 20 kg;
Methyl mercaptan tin heat stabilizer 3.5 kg;
Oxidation inhibitor four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester 0.15 kg;
Anti-UV agent Octabenzone 0.5 kg;
Nano-calcium carbonate 15 kg;
Modification red soil 25 kg;
Colorant 1.5 kg.
The preparation method of described nanometer bi-layer film biogas digester material comprises the following steps:
Step 1, calendering technology: first PVC polyvinyl chloride (PVC) RESINS, DOP dioctyl phthalate (DOP), DBP dibutyl phthalate, stablizer, oxidation inhibitor, anti-UV agent, nano-calcium carbonate, modification red soil and other auxiliary agents are added to calendering formation in calendering formation machine, obtain laminating film; Calendering formation temperature is 175 ℃, and pulling speed is 32m/min.
Step 2, attaching process: take polyester screen cloth as middle layer, respectively establish up and down the laminating film that one deck is prepared by step 1, middle layer trevira screen cloth first floods after E-PVC paste solution 2-3s, at 140 ℃, dry plastics processing 2-3min, paste viscosity is 3000 mPas, pretreated trevira screen cloth is synchronous and levels laminating film is sent in rigging machine by film transmission frame again, at 135 ℃ fully after preheating, by upper strata laminating film, polyester screen cloth, the order of lower floor's laminating film is combined three laminatings, upper strata laminating film contacts with grain roller, lower floor's laminating film contacts with rubber rollers, during laminating, between two rollers, pressurize, under the binding temperature of 165 ℃, nearly the levels laminating film of molten state and polyester screen cloth fit together, laminate pressure is 45Kgf, doubling roller speed 6m/min,
Step 3, process of surface treatment: after the cooling trimming of trilamellar membrane that step 2 is obtained, carry out monoplanar surface processing; adopt esters of acrylic acid surface treatment agent; coating adopts roller coat to scrape method technique; the trilamellar membrane list surface coated layer protective layer obtaining in step 2; then heating, drying at 80 ℃, obtains the methane-generating pit material of the individual layer that monoplanar surface processes.
Step 4, the individual layer methane-generating pit combination of materials that two groups of monoplanar surface are processed are used, and all outwardly, and two groups of methane-generating pit storerooms have air pressure and form cavity the surface treatment face of two groups of methane-generating pit materials, obtain nanometer double-layer methane tank material.
Claims (8)
1. the preparation method of nanometer bi-layer film biogas digester material, the component of described methane-generating pit material and parts by weight thereof are:
100 parts of PVC polyvinyl chloride (PVC) RESINS;
DOP dioctyl phthalate (DOP) 15-25 part;
20 parts of DBP dibutyl phthalates;
Stablizer 3-4 part;
Oxidation inhibitor 0.1-0.2 part;
Anti-UV agent 0.4-0.6 part;
Nano-calcium carbonate 10-20 part;
Modification red soil 20-30 part;
Other auxiliary agents 1-2 part;
It is characterized in that: described preparation method comprises the following steps:
Step 1, calendering technology: first PVC polyvinyl chloride (PVC) RESINS, DOP dioctyl phthalate (DOP), DBP dibutyl phthalate, stablizer, oxidation inhibitor, anti-UV agent, nano-calcium carbonate, modification red soil and other auxiliary agents are added to calendering formation in calendering formation machine, obtain laminating film;
Step 2, attaching process: take polyester screen cloth as middle layer, respectively establish up and down the laminating film that one deck is prepared by step 1, middle layer trevira screen cloth is through dipping, dry, after plasticizing, synchronous and levels laminating film sends frame by film and is sent in rigging machine, at 130-140 ℃ fully after preheating, by upper strata laminating film, polyester screen cloth, the order of lower floor's laminating film is combined three laminatings, upper strata laminating film contacts with grain roller, lower floor's laminating film contacts with rubber rollers, during laminating, between two rollers, pressurize, under the binding temperature of 160-170 ℃, nearly the levels laminating film of molten state and polyester screen cloth fit together, laminate pressure is 35-45Kgf, doubling roller speed 4-6m/min,
Step 3, process of surface treatment: after the cooling trimming of trilamellar membrane that step 2 is obtained, carry out monoplanar surface processing, heating, drying at 80 ℃ then, obtains the methane-generating pit material of the individual layer that monoplanar surface processes;
Step 4, the individual layer methane-generating pit combination of materials that two groups of monoplanar surface are processed are used, and all outwardly, and two groups of methane-generating pit storerooms have air pressure and form cavity the surface treatment face of two groups of methane-generating pit materials, obtain double-layer methane tank material.
2. the preparation method of nanometer bi-layer film biogas digester material according to claim 1, is characterized in that: described stablizer is a kind of in following: barium, zinc composite stabilizer or methyl mercaptan tin heat stabilizer.
3. the preparation method of nanometer bi-layer film biogas digester material according to claim 1, it is characterized in that: described oxidation inhibitor is a kind of in following: four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) tri-grades of butyl-4-methylphenols of pentaerythritol ester or 2,6-.
4. the preparation method of nanometer bi-layer film biogas digester material according to claim 1, is characterized in that: described anti-UV agent is a kind of in following: Octabenzone or single phenylformic acid resorcinol.
5. the preparation method of nanometer bi-layer film biogas digester material according to claim 1, is characterized in that: described other auxiliary agents are colorant.
6. the preparation method of nanometer bi-layer film biogas digester material according to claim 1, is characterized in that: the calendering formation temperature in described step 1 is 170-180 ℃, and pulling speed is 28-35m/min.
7. the preparation method of nanometer bi-layer film biogas digester material according to claim 1, it is characterized in that: in described step 2, the concrete operations of middle layer trevira screen cloth dipping, oven dry, plasticizing are: by after middle layer trevira screen cloth dipping E-PVC paste solution, at 140 ℃, dry plastics processing 2-3min, paste viscosity is 2500-3500 mPas.
8. the preparation method of nanometer bi-layer film biogas digester material according to claim 1; it is characterized in that: the surface treatment operations in described step 3 is: adopt esters of acrylic acid surface treatment agent; coating adopts roller coat to scrape method technique, the trilamellar membrane list surface coated layer protective layer obtaining in step 2.
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| CN112048134A (en) * | 2020-09-02 | 2020-12-08 | 南京鸿瑞塑料制品有限公司 | Preparation method of reinforced PVC paste resin |
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