CN107674428A - A kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable - Google Patents
A kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable Download PDFInfo
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- CN107674428A CN107674428A CN201710833422.0A CN201710833422A CN107674428A CN 107674428 A CN107674428 A CN 107674428A CN 201710833422 A CN201710833422 A CN 201710833422A CN 107674428 A CN107674428 A CN 107674428A
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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
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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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
- C08L2201/02—Flame or fire retardant/resistant
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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
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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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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- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
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Abstract
The invention discloses the restrictive coating on the outside of a kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable, including cable core and cladding cable core, the raw material of restrictive coating includes by weight：80 100 parts of methyl vinyl phenyl silicon rubber, 30 40 parts of butadiene-styrene rubber, 23 parts of crosslinking agent, 40 50 parts of nano-beta molecular sieve compound, 30 40 parts of medical stone powder, 10 16 parts of carbon nano-fiber, 6 12 parts of flyash, 6 10 parts of sepiolite powder, meteorological 48 parts of white carbon, 46 parts of zinc oxide, 35 parts of ferroso-ferric oxide, 48 parts of PLA, 35 parts of monoalkoxy unrighted acid titanate esters, 24 parts of tetraethoxysilane, 48 parts of plasticizer, 24 parts of age resistor.The present invention is environmentally friendly, nontoxic, and has excellent heat endurance and anti-flammability.
Description
Technical field
The present invention relates to solar photovoltaic cable technical field, more particularly to a kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic
Cable.
Background technology
Abundant solar radiant energy is the important energy, is inexhaustible, nexhaustible, pollution-free, cheap, the mankind can
The energy freely utilized.Based on the whole world and Europe to the situation of solar energy demand, the sun is being greatly developed in countries in the world
Can electricity generation system.Solar photovoltaic cable requires cable as insulation and sheath double-decker, to heat endurance and flame-retardancy requirements compared with
Height, therefore material is environmentally friendly, nontoxic, and there is excellent heat endurance just to become extremely important with fire resistance.
The content of the invention
Based on technical problem existing for background technology, the present invention proposes a kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic
Cable, the present invention is environmentally friendly, nontoxic, and has excellent heat endurance and anti-flammability.
Shield on the outside of the environment-protecting and non-poisonous fire-retardant solar photovoltaic cable of one kind proposed by the present invention, including cable core and cladding cable core
Jacket layer, the raw material of restrictive coating include by weight：Methyl vinyl phenyl silicon rubber 80-100 parts, butadiene-styrene rubber 30-40 parts, hand over
Join agent 2-3 parts, nano-beta molecular sieve compound 40-50 parts, medical stone powder 30-40 parts, carbon nano-fiber 10-16 parts, flyash 6-
12 parts, sepiolite powder 6-10 parts, meteorological white carbon 4-8 parts, zinc oxide 4-6 parts, ferroso-ferric oxide 3-5 parts, PLA 4-8 parts,
Monoalkoxy unrighted acid titanate esters 3-5 parts, tetraethoxysilane 2-4 parts, plasticizer 4-8 parts, age resistor 2-4 parts.
Preferably, nano-beta molecular sieve compound is prepared using following technique：Polyethylene glycol is dissolved in tetrahydrofuran,
Ethyl acrylate, Novi's letter lipase 435 are added, heating stirring, adds nano-beta molecular sieve, ultrasonic vibration, temperature rising reflux, mistake
Filter, urea, phosphoric acid solution are added, heating stirring, is cooled down, washing, crushing obtains nano-beta molecular sieve compound.
Preferably, nano-beta molecular sieve compound is prepared using following technique：It is by weight that 15-20 part polyethylene glycol is molten
Solution adds 10-16 parts ethyl acrylate, 0.04-0.08 parts Novi letter lipase 435, heating in 100-140 part tetrahydrofurans
Stirring, 50-55 part nano-beta molecular sieves are added, ultrasonic vibration, temperature rising reflux, filtering, add 10-18 parts urea, 120-160 parts
Concentration is 75-80wt% phosphoric acid solutions, heating stirring, is cooled down, washing, crushing obtains nano-beta molecular sieve compound.
Preferably, nano-beta molecular sieve compound is prepared using following technique：It is by weight that 15-20 part polyethylene glycol is molten
Solution adds 10-16 parts ethyl acrylate, 0.04-0.08 parts Novi letter lipase 435, heating in 100-140 part tetrahydrofurans
To 60-66 DEG C of stirring 6-10h, 50-55 part nano-beta molecular sieves are added, ultrasonic vibration 35-45min, 128-135 DEG C is warming up to and returns
10-20min is flowed, filtering, addition 10-18 parts urea, 120-160 parts concentration are 75-80wt% phosphoric acid solutions, are warming up to 190-
200 DEG C of stirring 10-20min, are cooled down, washing, crushing obtains nano-beta molecular sieve compound.
Preferably, crosslinking agent includes by weight：1,1- double-(t-butyl peroxy) hexamethylene 1.5-2.5 parts, calper calcium peroxide
0.4-0.8 parts.
Preferably, plasticizer includes by weight：BBP(Butyl Benzyl Phthalate 1-2 parts, triphenyl phosphate 1-2 parts, epoxy
Tall oil acid butyl ester 2-4 parts.
The present invention is compounded using methyl vinyl phenyl silicon rubber, butadiene-styrene rubber, through 1,1- pairs-(t-butyl peroxy) hexamethylene
Alkane, calper calcium peroxide effect, heat endurance is good after solidification crosslinking；And nano-beta molecular sieve compound and methyl vinyl phenyl silicon rubber
Glue, the compatibility of butadiene-styrene rubber are high, good dispersion, it is crosslinked after not only fillibility it is good, and thermal stability is excellent, anti-flammability
Can be excellent；In nano-beta molecular sieve compound, cooperation lower surface grafted propylene acid of the polyethylene glycol in Novi's letter lipase 435
Ethyl ester, formed dendroid, its intramolecule has larger cavity, and a large amount of functional groups are contained on surface, further with nanometer β
Molecular sieve is combined under certain condition, and products therefrom has a large amount of cavitys and a duct, and thermal insulation layer is formed after filling air, not only every
Thermal effect is fabulous, and has excellent flame retardant effect, and with the scattered and phase of methyl vinyl phenyl silicon rubber, butadiene-styrene rubber
Capacitive is good, pollution-free, energy consumption is low；And nano-beta molecular sieve compound and meteorological white carbon, zinc oxide, the scattered effect of ferroso-ferric oxide
Fruit is fabulous, synergy, further enhances heat endurance of the present invention, and coordinates the medical stone powder added, carbon nano-fiber, powder
Coal ash, sepiolite powder, on the basis of mechanical property of the present invention is strengthened, cost can be effectively reduced, coordinates phthalic acid fourth benzyl
Ester, triphenyl phosphate, the effect of epoxidized tall oil acid butyl ester, the balance of rigidity and toughness is effectively maintained, the present invention is even in strong curved
Embrittlement will not also occur under folding effect.
Embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of restrictive coating on the outside of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable, including cable core and cladding cable core, restrictive coating
Raw material include by weight：80 parts of methyl vinyl phenyl silicon rubber, 40 parts of butadiene-styrene rubber, 2 parts of crosslinking agent, nanometer beta molecule
Sieve 50 parts of compound, 30 parts of medical stone powder, 16 parts of carbon nano-fiber, 6 parts of flyash, 10 parts of sepiolite powder, meteorological white carbon 4
Part, 6 parts of zinc oxide, 3 parts of ferroso-ferric oxide, 8 parts of PLA, 3 parts of monoalkoxy unrighted acid titanate esters, tetraethoxy-silicane
4 parts of alkane, 4 parts of plasticizer, 4 parts of age resistor.
Embodiment 2
A kind of restrictive coating on the outside of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable, including cable core and cladding cable core, restrictive coating
Raw material include by weight：100 parts of methyl vinyl phenyl silicon rubber, 30 parts of butadiene-styrene rubber, 3 parts of crosslinking agent, nanometer beta molecule
Sieve 40 parts of compound, 40 parts of medical stone powder, 10 parts of carbon nano-fiber, 12 parts of flyash, 6 parts of sepiolite powder, meteorological white carbon 8
Part, 4 parts of zinc oxide, 5 parts of ferroso-ferric oxide, 4 parts of PLA, 5 parts of monoalkoxy unrighted acid titanate esters, tetraethoxy-silicane
2 parts of alkane, 8 parts of plasticizer, 2 parts of age resistor.
Nano-beta molecular sieve compound is prepared using following technique：Polyethylene glycol is dissolved in tetrahydrofuran, adds propylene
Acetoacetic ester, Novi's letter lipase 435, heating stirring, add nano-beta molecular sieve, ultrasonic vibration, temperature rising reflux, filtering, add urine
Element, phosphoric acid solution, heating stirring, are cooled down, and washing, crushing obtains nano-beta molecular sieve compound.
Embodiment 3
A kind of restrictive coating on the outside of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable, including cable core and cladding cable core, restrictive coating
Raw material include by weight：95 parts of methyl vinyl phenyl silicon rubber, 32 parts of butadiene-styrene rubber, 2.8 parts of crosslinking agent, β points of nanometer
Son 42 parts of compound of sieve, 38 parts of medical stone powder, 12 parts of carbon nano-fiber, 10 parts of flyash, 7 parts of sepiolite powder, meteorological white carbon 7
Part, 4.5 parts of zinc oxide, 4.5 parts of ferroso-ferric oxide, 5 parts of PLA, 4.5 parts of monoalkoxy unrighted acid titanate esters, tetrem
2.5 parts of TMOS, 7 parts of plasticizer, 2.5 parts of age resistor.
Crosslinking agent includes by weight：1,1- double -1.5 parts of (t-butyl peroxy) hexamethylene, 0.8 part of calper calcium peroxide.Plasticising
Agent includes by weight：1 part of BBP(Butyl Benzyl Phthalate, 2 parts of triphenyl phosphate, 2 parts of epoxidized tall oil acid butyl ester.
Nano-beta molecular sieve compound is prepared using following technique：18 parts of polyethylene glycol are dissolved in 120 part four by weight
In hydrogen furans, 13 parts of ethyl acrylates, 0.06 part of Novi's letter lipase 435 are added, heating stirring, adds 52 parts of nanometer beta molecules
Sieve, ultrasonic vibration, temperature rising reflux, filtering, 14 parts of urea of addition, 140 parts of concentration are 78wt% phosphoric acid solutions, heating stirring, cold
But, wash, crushing obtains nano-beta molecular sieve compound.
Embodiment 4
A kind of restrictive coating on the outside of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable, including cable core and cladding cable core, restrictive coating
Raw material include by weight：85 parts of methyl vinyl phenyl silicon rubber, 38 parts of butadiene-styrene rubber, 2.2 parts of crosslinking agent, β points of nanometer
Son 48 parts of compound of sieve, 32 parts of medical stone powder, 14 parts of carbon nano-fiber, 8 parts of flyash, 9 parts of sepiolite powder, meteorological white carbon 5
Part, 5.5 parts of zinc oxide, 3.5 parts of ferroso-ferric oxide, 7 parts of PLA, 3.5 parts of monoalkoxy unrighted acid titanate esters, tetrem
3.5 parts of TMOS, 5 parts of plasticizer, 3.5 parts of age resistor.
Crosslinking agent includes by weight：1,1- double -2.5 parts of (t-butyl peroxy) hexamethylene, 0.4 part of calper calcium peroxide.Plasticising
Agent includes by weight：2 parts of BBP(Butyl Benzyl Phthalate, 1 part of triphenyl phosphate, 4 parts of epoxidized tall oil acid butyl ester.
Nano-beta molecular sieve compound is prepared using following technique：20 parts of polyethylene glycol are dissolved in 100 part four by weight
In hydrogen furans, 16 parts of ethyl acrylates, 0.04 part of Novi's letter lipase 435 are added, 66 DEG C of stirring 6h is warming up to, adds 55 parts and receive
Rice beta-molecular sieve, ultrasonic vibration 35min, 135 DEG C of backflow 10min are warming up to, filtering, add 18 parts of urea, 120 parts of concentration are
80wt% phosphoric acid solutions, 190 DEG C of stirring 20min are warming up to, are cooled down, washing, crushing obtains nano-beta molecular sieve compound.
Embodiment 5
A kind of restrictive coating on the outside of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable, including cable core and cladding cable core, restrictive coating
Raw material include by weight：90 parts of methyl vinyl phenyl silicon rubber, 35 parts of butadiene-styrene rubber, 2.5 parts of crosslinking agent, β points of nanometer
Son 45 parts of compound of sieve, 35 parts of medical stone powder, 13 parts of carbon nano-fiber, 9 parts of flyash, 8 parts of sepiolite powder, meteorological white carbon 6
Part, 5 parts of zinc oxide, 4 parts of ferroso-ferric oxide, 6 parts of PLA, 4 parts of monoalkoxy unrighted acid titanate esters, tetraethoxy-silicane
3 parts of alkane, 6 parts of plasticizer, 3 parts of age resistor.
Crosslinking agent includes by weight：1,1- double -2 parts of (t-butyl peroxy) hexamethylene, 0.6 part of calper calcium peroxide.Plasticizer
Include by weight：1.5 parts of BBP(Butyl Benzyl Phthalate, 1.5 parts of triphenyl phosphate, 3 parts of epoxidized tall oil acid butyl ester.
Nano-beta molecular sieve compound is prepared using following technique：15 parts of polyethylene glycol are dissolved in 140 part four by weight
In hydrogen furans, 10 parts of ethyl acrylates, 0.08 part of Novi's letter lipase 435 are added, 60 DEG C of stirring 10h is warming up to, adds 50 parts
Nano-beta molecular sieve, ultrasonic vibration 45min, 128 DEG C of backflow 20min are warming up to, filtering, add 10 parts of urea, 160 parts of concentration are
75wt% phosphoric acid solutions, 200 DEG C of stirring 10min are warming up to, are cooled down, washing, crushing obtains nano-beta molecular sieve compound.
The environment-protecting and non-poisonous fire-retardant solar photovoltaic cable of the gained of embodiment 5 is tested, test result is as follows：Tensile strength
70.2MPa, elongation at break 406%, Shao Er hardness are 81；Keep circuit complete in 750 DEG C of fire resistance tests of temperature, 30min,
Thermal life assessment is carried out to the cable of production, compared with the cable for being used for half a year, the life-span is more than 5 years.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (6)
1. a kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable, it is characterised in that including the sheath on the outside of cable core and cladding cable core
Layer, the raw material of restrictive coating include by weight：Methyl vinyl phenyl silicon rubber 80-100 parts, butadiene-styrene rubber 30-40 parts, crosslinking
Agent 2-3 parts, nano-beta molecular sieve compound 40-50 parts, medical stone powder 30-40 parts, carbon nano-fiber 10-16 parts, flyash 6-12
Part, sepiolite powder 6-10 parts, meteorological white carbon 4-8 parts, zinc oxide 4-6 parts, ferroso-ferric oxide 3-5 parts, PLA 4-8 parts, list
Alkoxy unrighted acid titanate esters 3-5 parts, tetraethoxysilane 2-4 parts, plasticizer 4-8 parts, age resistor 2-4 parts.
2. environment-protecting and non-poisonous fire-retardant solar photovoltaic cable according to claim 1, it is characterised in that nano-beta molecular sieve is compound
Thing is prepared using following technique：Polyethylene glycol is dissolved in tetrahydrofuran, adds ethyl acrylate, Novi's letter lipase 435,
Heating stirring, nano-beta molecular sieve is added, ultrasonic vibration, temperature rising reflux, is filtered, add urea, phosphoric acid solution, heating stirring is cold
But, wash, crushing obtains nano-beta molecular sieve compound.
3. environment-protecting and non-poisonous fire-retardant solar photovoltaic cable according to claim 1 or claim 2, it is characterised in that nano-beta molecular sieve is multiple
Compound is prepared using following technique：15-20 part polyethylene glycol is dissolved in 100-140 part tetrahydrofurans by weight, added
10-16 parts ethyl acrylate, 0.04-0.08 parts Novi letter lipase 435, heating stirring, add 50-55 part nano-beta molecular sieves,
Ultrasonic vibration, temperature rising reflux, filtering, add 10-18 parts urea, 120-160 parts concentration is 75-80wt% phosphoric acid solutions, heating
Stirring, cool down, washing, crushing obtains nano-beta molecular sieve compound.
4. according to any one of the claim 1-3 environment-protecting and non-poisonous fire-retardant solar photovoltaic cables, it is characterised in that β points of nanometer
Son sieve compound is prepared using following technique：15-20 part polyethylene glycol is dissolved in 100-140 part tetrahydrofurans by weight
In, 10-16 parts ethyl acrylate, 0.04-0.08 parts Novi letter lipase 435 are added, 60-66 DEG C of stirring 6-10h is warming up to, adds
Enter 50-55 part nano-beta molecular sieves, ultrasonic vibration 35-45min, be warming up to 128-135 DEG C of backflow 10-20min, filter, add
10-18 parts urea, 120-160 parts concentration are 75-80wt% phosphoric acid solutions, are warming up to 190-200 DEG C and stir 10-20min, cold
But, wash, crushing obtains nano-beta molecular sieve compound.
5. according to any one of the claim 1-4 environment-protecting and non-poisonous fire-retardant solar photovoltaic cables, it is characterised in that crosslinking agent is pressed
Parts by weight include：1,1- double-(t-butyl peroxy) hexamethylene 1.5-2.5 parts, calper calcium peroxide 0.4-0.8 parts.
6. according to any one of the claim 1-5 environment-protecting and non-poisonous fire-retardant solar photovoltaic cables, it is characterised in that plasticizer is pressed
Parts by weight include：BBP(Butyl Benzyl Phthalate 1-2 parts, triphenyl phosphate 1-2 parts, epoxidized tall oil acid butyl ester 2-4 parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710833422.0A CN107674428A (en) | 2017-09-15 | 2017-09-15 | A kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable |
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| CN201710833422.0A CN107674428A (en) | 2017-09-15 | 2017-09-15 | A kind of environment-protecting and non-poisonous fire-retardant solar photovoltaic cable |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021523A (en) * | 2018-07-17 | 2018-12-18 | 全椒祥瑞塑胶有限公司 | A kind of low water absorption polylactic acid plastic automobile interior decoration |
| CN109494672A (en) * | 2018-11-26 | 2019-03-19 | 国网河南省电力公司新野县供电公司 | A kind of buried cable safety guard |
| CN117430874A (en) * | 2023-12-20 | 2024-01-23 | 亚都医疗科技(河南)有限公司 | High-barrier rubber slurry, rubber glove and preparation method thereof |
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| CN106317522A (en) * | 2016-08-30 | 2017-01-11 | 安徽蓝德集团股份有限公司 | Cable sheath material having cracking resistance and good thermal stability and used for wind power generation |
| CN107033470A (en) * | 2017-04-07 | 2017-08-11 | 安徽省无为县经纬电缆附件有限公司 | A kind of control cable for nuclear power station |
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2017
- 2017-09-15 CN CN201710833422.0A patent/CN107674428A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106317522A (en) * | 2016-08-30 | 2017-01-11 | 安徽蓝德集团股份有限公司 | Cable sheath material having cracking resistance and good thermal stability and used for wind power generation |
| CN107033470A (en) * | 2017-04-07 | 2017-08-11 | 安徽省无为县经纬电缆附件有限公司 | A kind of control cable for nuclear power station |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109021523A (en) * | 2018-07-17 | 2018-12-18 | 全椒祥瑞塑胶有限公司 | A kind of low water absorption polylactic acid plastic automobile interior decoration |
| CN109494672A (en) * | 2018-11-26 | 2019-03-19 | 国网河南省电力公司新野县供电公司 | A kind of buried cable safety guard |
| CN117430874A (en) * | 2023-12-20 | 2024-01-23 | 亚都医疗科技(河南)有限公司 | High-barrier rubber slurry, rubber glove and preparation method thereof |
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