CN105524443A - High-strength glass fiber reinforced plastic septic tank and preparation method thereof - Google Patents
High-strength glass fiber reinforced plastic septic tank and preparation method thereof Download PDFInfo
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- CN105524443A CN105524443A CN201610065916.4A CN201610065916A CN105524443A CN 105524443 A CN105524443 A CN 105524443A CN 201610065916 A CN201610065916 A CN 201610065916A CN 105524443 A CN105524443 A CN 105524443A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/06—Unsaturated polyesters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention discloses a high-strength glass fiber reinforced plastic septic tank. The glass fiber reinforced plastic septic tank is made of an unsaturated polyester fiber reinforced bulk molding compound, wherein the polyester fiber reinforced bulk molding compound is prepared from raw materials in parts by weight as follows: 25-45 parts of unsaturated polyester, 15-30 parts of reinforced fibers, 10-15 parts of aldehyde modified crosslinked polystyrene, 0.3-0.5 parts of N,N-dimethylaniline, 0.2-0.4 parts of an initiator, 35-45 parts of calcium carbonate, 0.1-0.3 parts of nano-silica, 0.5-2 parts of zinc stearate, 3-7 parts of styrene, 0.1-0.3 parts of p-benzoquinone and 0.2-0.5 parts of 2,6-butylated hydroxytoluene. The prepared glass fiber reinforced plastic septic tank has good toughness and strength, has the anti-shock strength higher than or equal to 160J/m/<2>, is resistant to corrosion and high temperature and excellent in antioxidation performance, can meet the high-strength requirements for the glass fiber reinforced plastic septic tank and has good application prospect in practice.
Description
Technical field
The present invention relates to field of sewage treatment equipment, be specifically related to a kind of high-strength glass steel septic tank and preparation method thereof.
Background technology
Septic tank is the indispensable drainage treatment equipment of building field, and enter municipal pipeline or enter subordinate's sewage treatment facility again after being used for that sanitary wastewater is carried out primary treatment and carry out advanced treatment, more employing is buried.Early stage manufacture septic tank adopts brick, Steel Concrete or steel plate usually, but all there is obvious defect, and glass toughening manure pit is progressively selected for most of construction unit in recent years.Glass reinforced plastic formal name used at school glass filament reinforced plastics, the septic tank storage tank of glass steel material, has erosion resistance extremely strong, non-leakage, and is easy to construction, and the features such as aging speed is slow, working life can reach more than 50 years.Glass toughening manure pit storage tank is generally embedded in, 0.7 to 3.5 meter, underground, to save ground space, ground can be afforested, square, road, the uses such as parking lot, therefore underground tank body need afford top earthing pressure, wall pressure, the multiple pressures such as landing load (as ground parking or vehicle pass-through pressure) and geology non-uniform settling stress, tank body must have enough intensity to bear external force, so propose very high requirement to the self-strength of glass toughening manure pit, but it is poor all to there is buried storage tank surface hardness in prior art, resistance to compression, the problem of bending resistance deficiency.
Summary of the invention
For the deficiencies in the prior art, the invention provides and a kind of there is glass toughening manure pit of high tenacity and high strength and preparation method thereof.
For realizing above object, the present invention is achieved by the following technical programs:
A kind of high-strength glass steel septic tank, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: unsaturated polyester 25-45 part, fortifying fibre 15-30 part, aldehyde grouping modified crosslinked polystyrene 10-15 part, N, accelerine 0.3-0.5 part, initiator 0.2-0.4 part, calcium carbonate 35-45 part, nano silicon 0.1-0.3 part, coupling agent 0.5-2 part, calcium hydroxide 0.02-0.1 part, polyoxyethylene caster seed oil 1-3 part, Zinc Stearate 0.5-2 part, vinylbenzene 3-7 part, para benzoquinone 0.1-0.3 part, 2, 6-ditertbutylparacresol 0.2-0.5 part.
Preferably, described trevira strengthens BMC and is obtained by the raw material of following weight part: unsaturated polyester 35 parts, fortifying fibre 22 parts, aldehyde grouping modified crosslinked polystyrene 12 parts, N, accelerine 0.4 part, initiator 0.3 part, 40 parts, calcium carbonate, nano silicon 0.2 part, coupling agent 1.0 parts, 0.05 part, calcium hydroxide, polyoxyethylene caster seed oil 2 parts, Zinc Stearate 1 part, vinylbenzene 5 parts, para benzoquinone 0.2 part, 2,6 ditertiary butyl p cresol 0.3 part.
Preferably, described unsaturated polyester is the one in propylene ether type unsaturated polyester, adjacent benzene-type unsaturated polyester and metaphenylene unsaturated polyester.
Preferably, described fortifying fibre is short glass fiber.
Preferably, described initiator is the one in peroxidized t-butyl perbenzoate, peroxidation formyl and methylethyl ketone peroxide.
Preferably, described coupling agent be aminopropyl triethoxysilane, vinyl trimethylsilane one or both.
The preparation method of high-strength glass steel septic tank, comprises the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, initiator, nano silicon, coupling agent, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, molded curing is shaping, and the demoulding obtains product.
Beneficial effect of the present invention: the aldehyde grouping modified crosslinked polystyrene added in the present invention makes shrinking percentage in molded curing process little, the interpolation of polyoxyethylene caster seed oil and Zinic stearas, make good processability, the easy demoulding, not easy to crack, glass fibre finally adds and mediates makes it mix, avoid glass fibre and stir fracture for a long time, thus ensure that its higher strength property, the glass toughening manure pit of preparation has good toughness and intensity, anti-shock strength is high >=160J/ ㎡, corrosion-resistant and high-temperature resistant, antioxidant property is excellent, the requirement of the high strength of glass toughening manure pit can be met, have in practice and good use prospect.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1:
A kind of high-strength glass steel septic tank, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: adjacent benzene-type unsaturated polyester 35 parts, short glass fiber 22 parts, aldehyde grouping modified crosslinked polystyrene 12 parts, N, accelerine 0.4 part, peroxidized t-butyl perbenzoate 0.3 part, 40 parts, calcium carbonate, nano silicon 0.2 part, vinyl trimethylsilane 1.0 parts, 0.05 part, calcium hydroxide, polyoxyethylene caster seed oil 2 parts, Zinc Stearate 1 part, vinylbenzene 5 parts, para benzoquinone 0.2 part, 2, 6-ditertbutylparacresol 0.3 part.
The preparation method of high-strength glass steel septic tank, comprises the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, peroxidized t-butyl perbenzoate, nano silicon, vinyl trimethylsilane, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in adjacent benzene-type unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, molded curing is shaping, and the demoulding obtains product.
Embodiment 2:
A kind of high-strength glass steel septic tank, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: propylene ether type unsaturated polyester 25 parts, chopped reinforcing fibers 15 parts, aldehyde grouping modified crosslinked polystyrene 10 parts, N, accelerine 0.5 part, methylethyl ketone peroxide 0.4 part, carbonic acid Ca45 part, nano silicon 0.1 part, aminopropyl triethoxysilane 2 parts, 0.02 part, calcium hydroxide, polyoxyethylene caster seed oil 3 parts, Zinc Stearate 0.5 part, vinylbenzene 7 parts, para benzoquinone 0.1 part, 2, 6-ditertbutylparacresol 0.5 part.
The preparation method of high-strength glass steel septic tank, comprises the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, methylethyl ketone peroxide, nano silicon, aminopropyl triethoxysilane, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in propylene ether type unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, solid model is cured shaping, and the demoulding obtains product.
Embodiment 3:
A kind of high-strength glass steel septic tank, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: metaphenylene unsaturated polyester 45 parts, chopped reinforcing fibers 30 parts, aldehyde grouping modified crosslinked polystyrene 15 parts, N, accelerine 0.3 part, peroxidation formyl 0.2 part, 35 parts, calcium carbonate, nano silicon 0.3 part, aminopropyl triethoxysilane 0.5 part, 0.1 part, calcium hydroxide, polyoxyethylene caster seed oil 1 part, Zinc Stearate 2 parts, vinylbenzene 3 parts, para benzoquinone 0.3 part, 2, 6-ditertbutylparacresol 0.2 part.
The preparation method of high-strength glass steel septic tank, comprises the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, peroxidation formyl, nano silicon, aminopropyl triethoxysilane, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in metaphenylene unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, molded curing is shaping, and the demoulding obtains product.
Embodiment 4:
A kind of high-strength glass steel septic tank, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: adjacent benzene-type unsaturated polyester 40 parts, chopped reinforcing fibers 25 parts, aldehyde grouping modified crosslinked polystyrene 13 parts, N, accelerine 0.5 part, methylethyl ketone peroxide 0.3 part, 40 parts, calcium carbonate, nano silicon 0.2 part, aminopropyl triethoxysilane 1.0 parts, 0.05 part, calcium hydroxide, polyoxyethylene caster seed oil 1.5 parts, Zinc Stearate 1.5 parts, vinylbenzene 6 parts, para benzoquinone 0.2 part, 2, 6-ditertbutylparacresol 0.4 part.
The preparation method of high-strength glass steel septic tank, comprises the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, methylethyl ketone peroxide, nano silicon, aminopropyl triethoxysilane, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in adjacent benzene-type unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, molded curing is shaping, and the demoulding obtains product.
Embodiment 5:
A kind of high-strength glass steel septic tank, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: propylene ether type unsaturated polyester 38 parts, chopped reinforcing fibers 20 parts, aldehyde grouping modified crosslinked polystyrene 14 parts, N, accelerine 0.5 part, peroxidation formyl 0.2 part, 41 parts, calcium carbonate, nano silicon 0.3 part, aminopropyl triethoxysilane 1 part, vinyl trimethylsilane 0.7 part, 0.07 part, calcium hydroxide, polyoxyethylene caster seed oil 2 parts, Zinc Stearate 1 part, vinylbenzene 4 parts, para benzoquinone 0.2 part, 2, 6-ditertbutylparacresol 0.3 part.
The preparation method of high-strength glass steel septic tank, comprises the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, peroxidation formyl, nano silicon, aminopropyl triethoxysilane, vinyl trimethylsilane, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in propylene ether type unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, molded curing is shaping, and the demoulding obtains product.
Embodiment 6:
A kind of high-strength glass steel septic tank, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: metaphenylene unsaturated polyester 30 parts, chopped reinforcing fibers 18 parts, aldehyde grouping modified crosslinked polystyrene 12 parts, N, accelerine 0.4 part, peroxidized t-butyl perbenzoate 0.2 part, 38 parts, calcium carbonate, nano silicon 0.1 part, vinyl trimethylsilane 2 parts, 0.06 part, calcium hydroxide, polyoxyethylene caster seed oil 2 parts, Zinc Stearate 1 part, vinylbenzene 5 parts, para benzoquinone 0.1 part, 2, 6-ditertbutylparacresol 0.5 part.
The preparation method of high-strength glass steel septic tank, comprises the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, peroxidized t-butyl perbenzoate, nano silicon, vinyl trimethylsilane, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in metaphenylene unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, molded curing is shaping, and the demoulding obtains product.
To sum up, the embodiment of the present invention has following beneficial effect: glass toughening manure pit prepared by the present invention has good toughness and intensity, and anti-shock strength is high >=160J/ ㎡, corrosion-resistant and high-temperature resistant, antioxidant property is excellent, can meet the requirement of the high strength of glass toughening manure pit.
It should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. a high-strength glass steel septic tank, it is characterized in that, described glass toughening manure pit material is unsaturated polyester fiber reinforcement Bulk Molding Compound, described trevira strengthens BMC and is obtained by the raw material of following weight part: unsaturated polyester 25-45 part, fortifying fibre 15-30 part, aldehyde grouping modified crosslinked polystyrene 10-15 part, N, accelerine 0.3-0.5 part, initiator 0.2-0.4 part, calcium carbonate 35-45 part, nano silicon 0.1-0.3 part, coupling agent 0.5-2 part, calcium hydroxide 0.02-0.1 part, polyoxyethylene caster seed oil 1-3 part, Zinc Stearate 0.5-2 part, vinylbenzene 3-7 part, para benzoquinone 0.1-0.3 part, 2, 6-ditertbutylparacresol 0.2-0.5 part.
2. high-strength glass steel septic tank as claimed in claim 1, it is characterized in that, described trevira strengthens BMC and is obtained by the raw material of following weight part: unsaturated polyester 35 parts, fortifying fibre 22 parts, aldehyde grouping modified crosslinked polystyrene 12 parts, N, accelerine 0.4 part, initiator 0.3 part, 40 parts, calcium carbonate, nano silicon 0.2 part, coupling agent 1.0 parts, 0.05 part, calcium hydroxide, polyoxyethylene caster seed oil 2 parts, Zinc Stearate 1 part, vinylbenzene 5 parts, para benzoquinone 0.2 part, 2,6 ditertiary butyl p cresol 0.3 part.
3. high-strength glass steel septic tank as claimed in claim 2, it is characterized in that, described unsaturated polyester is the one in propylene ether type unsaturated polyester, adjacent benzene-type unsaturated polyester and metaphenylene unsaturated polyester.
4. high-strength glass steel septic tank as claimed in claim 2, it is characterized in that, described fortifying fibre is short glass fiber.
5. high-strength glass steel septic tank as claimed in claim 2, it is characterized in that, described initiator is the one in peroxidized t-butyl perbenzoate, peroxidation formyl and methylethyl ketone peroxide.
6. high-strength glass steel septic tank as claimed in claim 2, is characterized in that, described coupling agent be aminopropyl triethoxysilane, vinyl trimethylsilane one or both.
7. a preparation method for the high-strength glass steel septic tank as described in as arbitrary in claim 1-6, is characterized in that, comprise the following steps:
1) 2,6 ditertiary butyl p cresol is joined in vinylbenzene, stir and make it dissolve completely;
2) by aldehyde grouping modified crosslinked polystyrene, N, accelerine, initiator, nano silicon, coupling agent, calcium hydroxide, polyoxyethylene caster seed oil, Zinc Stearate, para benzoquinone join in unsaturated polyester, mix with stirrer, by step 1) in solution add, stir, finally add calcium carbonate again, continue to stir, obtain unsaturated polyester resin compound;
3) the unsaturated polyester resin compound sized reinforcing fibres in kneader will made, mediates and makes it fully mix;
4) extruded by the material group forcing machine having infiltrated fortifying fibre, be poured in mould, molded curing is shaping, and the demoulding obtains product.
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| CN201610065916.4A CN105524443A (en) | 2016-01-27 | 2016-01-27 | High-strength glass fiber reinforced plastic septic tank and preparation method thereof |
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| CN201610065916.4A CN105524443A (en) | 2016-01-27 | 2016-01-27 | High-strength glass fiber reinforced plastic septic tank and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106349671A (en) * | 2016-08-29 | 2017-01-25 | 北海运龙环保材料有限责任公司 | High-strength fiberglass methane tank and preparation method thereof |
| CN109370139A (en) * | 2018-08-24 | 2019-02-22 | 安徽汇创新材料有限公司 | A kind of production technology of high-strength and high ductility glass toughening manure pit |
| CN109370186A (en) * | 2018-11-22 | 2019-02-22 | 安徽汇创新材料有限公司 | A kind of preparation method of the glass toughening manure pit of low temperature resistant environmental protection |
| CN109486145A (en) * | 2018-11-22 | 2019-03-19 | 安徽汇创新材料有限公司 | A kind of glass toughening manure pit and preparation method thereof of shock resistance environmental protection |
| CN109517354A (en) * | 2018-11-22 | 2019-03-26 | 安徽汇创新材料有限公司 | A kind of fire-retardant resistance to compression composite material and preparation method for glass toughening manure pit |
| WO2021132139A1 (en) * | 2019-12-26 | 2021-07-01 | 昭和電工株式会社 | Radical-polymerizable resin composition and cured object obtained therefrom |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106349671A (en) * | 2016-08-29 | 2017-01-25 | 北海运龙环保材料有限责任公司 | High-strength fiberglass methane tank and preparation method thereof |
| CN109370139A (en) * | 2018-08-24 | 2019-02-22 | 安徽汇创新材料有限公司 | A kind of production technology of high-strength and high ductility glass toughening manure pit |
| CN109370186A (en) * | 2018-11-22 | 2019-02-22 | 安徽汇创新材料有限公司 | A kind of preparation method of the glass toughening manure pit of low temperature resistant environmental protection |
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| WO2021132139A1 (en) * | 2019-12-26 | 2021-07-01 | 昭和電工株式会社 | Radical-polymerizable resin composition and cured object obtained therefrom |
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