CN107828170A - A kind of production method of PE plastics - Google Patents
A kind of production method of PE plastics Download PDFInfo
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- CN107828170A CN107828170A CN201710979673.XA CN201710979673A CN107828170A CN 107828170 A CN107828170 A CN 107828170A CN 201710979673 A CN201710979673 A CN 201710979673A CN 107828170 A CN107828170 A CN 107828170A
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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
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
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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
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a kind of production method of PE plastics, method includes：1) each raw material is weighed, wherein, the parts by weight of polyvinyl resin 100, the parts by weight of polyisobutene 10~18, the parts by weight of talcum powder 3~6, the parts by weight of the parts by weight of phenoxy group polyphosphazene 10~13, silica 1~3, the parts by weight of glycerine 5~10, the parts by weight of sorbierite 7~12, the parts by weight of trimethylolpropane 0.6~1；2) first calcium carbonate, silica, talcum powder are well mixed and obtain inorganic mixture；3) coupling agent is weighed, wherein, the ratio of the weight of coupling agent and inorganic mixture is 5:1~2:1；4) mixed inorganic mixture is immersed in coupling agent；5) poured into after being well mixed the inorganic mixture after stirring and each raw material in the hopper of extruder, by extruder extruded product.Using a kind of production method of PE plastics provided by the invention, the ageing resistace of the PE plastics of preparation is improved.
Description
Technical field
The present invention relates to technical field of plastic production, more particularly to a kind of production method of PE plastics.
Background technology
With the raising of Levels of Social Economic Development, plastic products have obtained more and more extensive application, wherein, PE
(polyethylene, polyethylene) plastic applications are the most extensive.PE refers to the polymer formed by vinyl monomer radical polymerization,
One of maximum general-purpose plastics of yield, be it is a kind of it is light, nontoxic, have preferable mechanical strength, excellent electrical insulating property and
The thermoplastic of resistance to chemical corrosion, it is widely used in all trades and professions of national economy, such as food, medicine, daily necessities.
Polyethylene is typical thermoplastic, is odorless, tasteless, nontoxic flammable white powder.The PE resins of processing and forming are equal
It is the wax-like particulate material of extruded granulation, outward appearance is creamy white.Polyethylene fusing point is 100~130 degrees Celsius of its resistance to low temperatures
It is excellent.Good mechanical property can be still kept at -60 DEG C, but temperature in use is at 80~110 DEG C.Polyethylene chemical stability compared with
It is good, the solution such as dust technology, the hydrochloric acid of dilute sulfuric acid and any concentration, hydrofluoric acid are resistant at room temperature.
However, inventor realize the present invention during find, using prior art prepare PE plastics it is anti-aging
Performance is bad.
The content of the invention
It is an object of the invention to provide a kind of production method of PE plastics, and the anti-of the PE plastics prepared is improved to realize
The purpose of ageing properties.Concrete technical scheme is as follows：
The invention provides a kind of production method of PE plastics, methods described includes：
1) each raw material is weighed, wherein, the parts by weight of polyvinyl resin 100, the parts by weight of polyisobutene 10~18, talcum powder 3~6
Parts by weight, the parts by weight of the parts by weight of phenoxy group polyphosphazene 10~13, silica 1~3, the parts by weight of glycerine 5~10, sorbierite 7
~12 parts by weight, the parts by weight of trimethylolpropane 0.6~1, the parts by weight of calcium carbonate 15~25, the weight of pentaerythritol stearate 2~5
Measure part, the parts by weight of antioxidant 3~7；
2) first the calcium carbonate, the silica, the talcum powder are crushed, is crushed to diameter 0.01~10
Micron, and be well mixed and obtain inorganic mixture；
3) coupling agent is weighed, wherein, the ratio of the coupling agent and the weight of the inorganic mixture is 5:1~2:1；
4) the mixed inorganic mixture is immersed in the coupling agent, and stirred with 100~200rpm rotating speed
Mix 15~35 minutes；
5) pour into the hopper of extruder after being well mixed the inorganic mixture after stirring and each raw material, squeezed by extruder
Go out product.
Optionally, it is described to soak the mixed inorganic mixture in a kind of embodiment of the present invention
Stirred 15~35 minutes in the coupling agent, and with 100~200rpm rotating speed, including：Will be mixed described inorganic mixed
In compound and coupling agent injection stainless steel, the stainless steel is heated to 45~65 degrees Celsius, and with 130~150rpm
Rotating speed stir 20~25 minutes.
Optionally, in a kind of embodiment of the present invention, each raw material by after stirring pours into extruder and squeezed
Go out, including：
Extruder fusion zone temperature is 115~160 degrees Celsius, and extrusion screw rod rotating speed is 150~200rpm.
Optionally, in a kind of embodiment of the present invention, the calcium carbonate granule a diameter of 0.01 after crushing
~0.1 micron, a diameter of 0.01~0.1 micron of the silica dioxide granule after crushing, the talcum particles after crushing
A diameter of 0.01~0.1 micron.
Optionally, in a kind of embodiment of the present invention, the polyvinyl resin is low density polyethylene (LDPE).
Optionally, in a kind of embodiment of the present invention, the polyvinyl resin connects for alkenyl alkoxy silane
The polyvinyl resin of branch.
Optionally, in a kind of embodiment of the present invention, the raw material is also fire-retardant including 9~17 parts by weight
Agent.
Optionally, in a kind of embodiment of the present invention, the fire retardant is that weight ratio is 1:1~1:3 halogen
The composite flame-retardant agent that flame retardant mixes with magnesium hydroxide, or be that weight ratio is 1:1.2~1:3.4 halogen system it is fire-retardant
The composite flame-retardant agent that agent mixes with aluminium hydroxide.
Optionally, in a kind of embodiment of the present invention, the raw material also includes the crosslinking of 0.1~5 parts by weight
Catalyst.
Optionally, in a kind of embodiment of the present invention, the raw material is also anti-aging including 3~7 parts by weight
Agent.
Using a kind of production method of PE plastics provided by the invention, the ageing resistance of the PE plastics of preparation can be improved
Energy.
Embodiment
The invention provides a kind of production method of PE plastics, methods described includes：
1) each raw material is weighed, wherein, the parts by weight of polyvinyl resin 100, the parts by weight of polyisobutene 10~18, talcum powder 3~6
Parts by weight, the parts by weight of the parts by weight of phenoxy group polyphosphazene 10~13, silica 1~3, the parts by weight of glycerine 5~10, sorbierite 7
~12 parts by weight, the parts by weight of trimethylolpropane 0.6~1, the parts by weight of calcium carbonate 15~25, the weight of pentaerythritol stearate 2~5
Measure part, the parts by weight of antioxidant 3~7；
Specifically, antioxidant can be 3,5- di-tert-butyl-hydroxy phenyls pentaerythritol ester, 4- di-tert-butyl-phenyls
One or two or more kinds of mixtures in phosphite ester or the positive octadecanol ester of 3,5- di-tert-butyl-hydroxy phenyl propionic acid.
2) first the calcium carbonate, the silica, the talcum powder are crushed, is crushed to diameter 0.01~10
Micron, and be well mixed and obtain inorganic mixture；
3) coupling agent is weighed, wherein, the ratio of the coupling agent and the weight of the inorganic mixture is 5:1~2:1；
4) the mixed inorganic mixture is immersed in the coupling agent, and stirred with 100~200rpm rotating speed
Mix 15~35 minutes；
5) pour into the hopper of extruder after being well mixed the inorganic mixture after stirring and each raw material, squeezed by extruder
Go out product.
In a kind of embodiment of the present invention, in order to improve the bond strength of inorganic material and polyvinyl resin,
Can will in the mixed inorganic mixture and coupling agent injection stainless steel, heat the stainless steel to 45~
65 degrees Celsius, and stirred 20~25 minutes with 130~150rpm rotating speed.
In a kind of embodiment of the present invention, for stable extruded product, extruder fusion zone temperature can be with
For 115~160 degrees Celsius, extrusion screw rod rotating speed can be 150~200rpm.
In a kind of embodiment of the present invention, in order to further improve the combination of inorganic material and polyvinyl resin
Intensity, the calcium carbonate granule diameter after crushing can be 0.01~0.1 micron, and the silica dioxide granule after crushing is straight
Footpath can be 0.01~0.1 micron, and the talcum particles diameter after crushing can be 0.01~0.1 micron.
In a kind of embodiment of the present invention, in order to improve the yields of product, the polyvinyl resin is low
Density polyethylene.
In a kind of embodiment of the present invention, in order to improve the bond strength between polyvinyl resin, the poly- second
Olefine resin can be the polyvinyl resin of alkenyl alkoxy silane grafting.
In a kind of embodiment of the present invention, in order to improve the noninflammability of product, the raw material also includes 9~17
The fire retardant of parts by weight.
In a kind of embodiment of the present invention, in order to further improve the noninflammability of product, the fire retardant is
Weight ratio is 1:1~1:The composite flame-retardant agent that 3 halogenated flame retardant mixes with magnesium hydroxide, or be that weight ratio is 1:
1.2~1:The composite flame-retardant agent that 3.4 halogenated flame retardant mixes with aluminium hydroxide.
Specifically, halogenated flame retardant can be chlorinated paraffin, haloflex, tetrachlorophthalic acid matches somebody with somebody, tetrachlorobisphenol
A, hexacholorocyclopentadiene and its derivative；Can also be aromatic series, aliphatic, alicyclic and four kinds of mixed type.From compound knot
Bromo-diphenyl ether, tetrabromobisphenol A class, brominated polyol class, bromophthalic acid anhydride etc. can be classified as on structure.
In a kind of embodiment of the present invention, in order to further improve the bond strength between polyvinyl resin, institute
Stating raw material also includes the crosslinking catalyst of 0.1~5 parts by weight.
Specifically, crosslinking catalyst can be dibutyl tin laurate, dibutyitin maleate, laurate maleic acid two
One or two or more kinds of mixture in butyl tin, Bis(lauroyloxy)dioctyltin.
In a kind of embodiment of the present invention, in order to improve the ageing resistace of product, the raw material also includes 3
The age resister of~7 parts by weight.
Technical scheme is described below in conjunction with specific embodiment, described embodiment is only this
Invention part of the embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art exist
The every other embodiment obtained on the premise of not making creative work, belongs to the scope of protection of the invention.
Embodiment 1
1) each raw material is weighed, wherein, the parts by weight of ldpe resin 100 of alkenyl alkoxy silane grafting, gather different
The parts by weight of butylene 10, the parts by weight of talcum powder 3, the parts by weight of phenoxy group polyphosphazene 10, silica 1 parts by weight, the weight of glycerine 5
Part, the parts by weight of sorbierite 7, the parts by weight of trimethylolpropane 0.6, the parts by weight of calcium carbonate 15, the weight of pentaerythritol stearate 2
Part, the parts by weight of antioxidant 3, the parts by weight of fire retardant 9, the parts by weight of crosslinking catalyst 0.1, the parts by weight of age resister 3；And fire retardant is
Weight ratio is 1:The composite flame-retardant agent that 1 halogenated flame retardant mixes with magnesium hydroxide.
2) first the calcium carbonate, the silica, the talcum powder are crushed, are crushed to 0.01 micron of diameter,
And it is well mixed and obtains inorganic mixture.
Specifically, the ratio of the weight of calcium carbonate, silica, talcum powder can be adjusted according to actual conditions, invention
People has found that the ratio of three is 1 in actual applications:1:Best results when 1.
3) coupling agent is weighed, wherein, the ratio of the coupling agent and the weight of the inorganic mixture is 5:1.
Specifically, the coupling agent that can be used includes but are not limited to gamma-methyl allyl acyloxypropyl trimethoxysilane
KH-570, gamma-mercaptopropyltriethoxysilane KH-580, γ-aminopropyltrimethoxysilane JH-A111 etc..
4) by the mixed inorganic mixture and coupling agent injection stainless steel, the stainless steel is heated
Stirred 15 minutes to 45 degrees Celsius, and with 100rpm rotating speed.
5) pour into the hopper of extruder after being well mixed the inorganic mixture after stirring and each raw material, squeezed by extruder
Go out product, wherein, extruder fusion zone temperature is 115 degrees Celsius, and extrusion screw rod rotating speed is 150 rpm, and the product of extrusion is
500mm is wide, sheet material thick 30mm.
Embodiment 2
1) each raw material is weighed, wherein, the parts by weight of ldpe resin 100 of alkenyl alkoxy silane grafting, gather different
The parts by weight of butylene 13, the parts by weight of talcum powder 4, the parts by weight of phenoxy group polyphosphazene 11, silica 1 .8 parts by weight, the weight of glycerine 6
Measure part, the parts by weight of sorbierite 8, the parts by weight of trimethylolpropane 0.7, the parts by weight of calcium carbonate 18, the weight of pentaerythritol stearate 3
Part, the parts by weight of antioxidant 4, the parts by weight of fire retardant 12, the parts by weight of crosslinking catalyst 1.5, the parts by weight of age resister 4；And fire retardant
It is 1 for weight ratio:The composite flame-retardant agent that 3 halogenated flame retardant mixes with magnesium hydroxide.
2) first the calcium carbonate, the silica, the talcum powder are crushed, are crushed to 0.04 micron of diameter,
And it is well mixed and obtains inorganic mixture.
3) coupling agent is weighed, wherein, the ratio of the coupling agent and the weight of the inorganic mixture is 4:1.
4) by the mixed inorganic mixture and coupling agent injection stainless steel, the stainless steel is heated
Stirred 20 minutes to 50 degrees Celsius, and with 130rpm rotating speed.
5) pour into the hopper of extruder after being well mixed the inorganic mixture after stirring and each raw material, squeezed by extruder
Go out product, wherein, extruder fusion zone temperature is 115 degrees Celsius, and extrusion screw rod rotating speed is 150 rpm, and the product of extrusion is
500mm is wide, sheet material thick 30mm.
Embodiment 3
1) each raw material is weighed, wherein, the parts by weight of ldpe resin 100 of alkenyl alkoxy silane grafting, gather different
The parts by weight of butylene 15, the parts by weight of talcum powder 5, the parts by weight of phenoxy group polyphosphazene 12, the parts by weight of silica 2.4, the weight of glycerine 8
Measure part, the parts by weight of sorbierite 10, the parts by weight of trimethylolpropane 0.8, the parts by weight of calcium carbonate 21, the weight of pentaerythritol stearate 4
Measure part, the parts by weight of antioxidant 5, the parts by weight of fire retardant 14, the parts by weight of crosslinking catalyst 3, the parts by weight of age resister 6；And fire retardant
It is 1 for weight ratio:The composite flame-retardant agent that 1 halogenated flame retardant mixes with magnesium hydroxide.
2) first the calcium carbonate, the silica, the talcum powder are crushed, are crushed to 0.08 micron of diameter,
And it is well mixed and obtains inorganic mixture.
3) coupling agent is weighed, wherein, the ratio of the coupling agent and the weight of the inorganic mixture is 3:1.
4) by the mixed inorganic mixture and coupling agent injection stainless steel, the stainless steel is heated
Stirred 25 minutes to 55 degrees Celsius, and with 150rpm rotating speed.
5) pour into the hopper of extruder after being well mixed the inorganic mixture after stirring and each raw material, squeezed by extruder
Go out product, wherein, extruder fusion zone temperature is 115 degrees Celsius, and extrusion screw rod rotating speed is 150 rpm, and the product of extrusion is
500mm is wide, sheet material thick 30mm.
Embodiment 4
1) each raw material is weighed, wherein, the parts by weight of ldpe resin 100 of alkenyl alkoxy silane grafting, gather different
The parts by weight of butylene 18, the parts by weight of talcum powder 6, the parts by weight of phenoxy group polyphosphazene 13, the parts by weight of silica 3, the weight of glycerine 10
Part, the parts by weight of sorbierite 12, the parts by weight of trimethylolpropane 1, the parts by weight of calcium carbonate 25, the weight of pentaerythritol stearate 5
Part, the parts by weight of antioxidant 7, the parts by weight of fire retardant 17, the parts by weight of crosslinking catalyst 4, the parts by weight of age resister 7；And fire retardant is
Weight ratio is 1:The composite flame-retardant agent that 3 halogenated flame retardant mixes with magnesium hydroxide.
2) first the calcium carbonate, the silica, the talcum powder are crushed, are crushed to 0.1 micron of diameter,
And it is well mixed and obtains inorganic mixture.
3) coupling agent is weighed, wherein, the ratio of the coupling agent and the weight of the inorganic mixture is 2:1.
4) by the mixed inorganic mixture and coupling agent injection stainless steel, the stainless steel is heated
Stirred 35 minutes to 65 degrees Celsius, and with 200rpm rotating speed.
5) pour into the hopper of extruder after being well mixed the inorganic mixture after stirring and each raw material, squeezed by extruder
Go out product, wherein, extruder fusion zone temperature is 115 degrees Celsius, and extrusion screw rod rotating speed is 150 rpm, and the product of extrusion is
500mm is wide, sheet material thick 30mm.
According to thermo-oxidative ageing experimental standard GB/T7141-2008, artificially roughening (90 is carried out to obtained plastics
DEG C, 500h), and respectively obtain the stretching strength retentivity and impact strength conservation rate of polyethylene board.
As a result it is as shown in table 1.Table 1 is stretching strength retentivity and the impact of polyethylene board prepared by embodiment 1-4
The test result of strength retention.
Table 1
As it can be seen from table 1 the application present invention is implemented, relative to prior art, the stretching of the polyethylene board of preparation is strong
Degree conservation rate has brought up to more than 84.9% from 81.8%；The impact strength conservation rate of the polyethylene board of preparation carries from 81.6%
It is high to more than 85.6%.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the scope of the present invention.It is all
Any modification, equivalent substitution and improvements made within the spirit and principles in the present invention etc., are all contained in protection scope of the present invention
It is interior.
Claims (10)
1. a kind of production method of PE plastics, it is characterised in that methods described includes：
1) each raw material is weighed, wherein, the parts by weight of polyvinyl resin 100, the parts by weight of polyisobutene 10~18, the weight of talcum powder 3~6
Part, the parts by weight of the parts by weight of phenoxy group polyphosphazene 10~13, silica 1~3, the parts by weight of glycerine 5~10, sorbierite 7~12
Parts by weight, the parts by weight of trimethylolpropane 0.6~1, the parts by weight of calcium carbonate 15~25, the weight of pentaerythritol stearate 2~5
Part, the parts by weight of antioxidant 3~7；
2) first the calcium carbonate, the silica, the talcum powder are crushed, are crushed to 0.01~10 micron of diameter,
And it is well mixed and obtains inorganic mixture；
3) coupling agent is weighed, wherein, the ratio of the coupling agent and the weight of the inorganic mixture is 5:1~2:1；
4) the mixed inorganic mixture is immersed in the coupling agent, and 15 is stirred with 100~200rpm rotating speed
~35 minutes；
5) poured into after being well mixed the inorganic mixture after stirring and each raw material in the hopper of extruder, extruded and produced by extruder
Product.
2. the production method of PE plastics according to claim 1, it is characterised in that it is described will be mixed described inorganic mixed
Compound is immersed in the coupling agent, and is stirred 15~35 minutes with 100~200rpm rotating speed, including：
Will in the mixed inorganic mixture and coupling agent injection stainless steel, heat the stainless steel to 45~
65 degrees Celsius, and stirred 20~25 minutes with 130~150rpm rotating speed.
3. the production method of PE plastics according to claim 2, it is characterised in that each raw material by after stirring pours into
Extruder is extruded, including：
Extruder fusion zone temperature is 115~160 degrees Celsius, and extrusion screw rod rotating speed is 150~200rpm.
4. the production method of PE plastics according to claim 3, it is characterised in that the calcium carbonate granule after broken is straight
Footpath is 0.01~0.1 micron, a diameter of 0.01~0.1 micron of the silica dioxide granule after crushing, the cunning after crushing
A diameter of 0.01~0.1 micron of talc particles.
5. the production method of PE plastics according to claim 4, it is characterised in that the polyvinyl resin gathers for low-density
Ethene.
6. the production method of PE plastics according to claim 5, it is characterised in that the polyvinyl resin is alkenyl alcoxyl
The polyvinyl resin of base silane grafting.
7. the production method of PE plastics according to claim 6, it is characterised in that the raw material also includes 9~17 weight
The fire retardant of part.
8. the production method of PE plastics according to claim 7, it is characterised in that the fire retardant is that weight ratio is 1:1
~1:The composite flame-retardant agent that 3 halogenated flame retardant mixes with magnesium hydroxide, or be that weight ratio is 1:1.2~1:3.4
The composite flame-retardant agent that halogenated flame retardant mixes with aluminium hydroxide.
9. the production method of PE plastics according to claim 8, it is characterised in that the raw material also includes 0.1~5 weight
The crosslinking catalyst of part.
10. the production method of PE plastics according to claim 9, it is characterised in that the raw material also includes 3~7 weight
The age resister of part.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979673.XA CN107828170A (en) | 2017-10-19 | 2017-10-19 | A kind of production method of PE plastics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710979673.XA CN107828170A (en) | 2017-10-19 | 2017-10-19 | A kind of production method of PE plastics |
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Family
ID=61648476
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086345A (en) * | 2015-08-13 | 2015-11-25 | 中国科学院长春应用化学研究所 | Static ring material for ship propeller shaft seal lubricating and preparation method thereof |
| CN105330947A (en) * | 2015-12-04 | 2016-02-17 | 苏州知瑞光电材料科技有限公司 | LDPE electromagnetic shielding material and preparation method thereof |
| CN105885188A (en) * | 2016-05-03 | 2016-08-24 | 山东泰开高分子材料有限公司 | Preparation and using method of chemical crosslinking low-smoke halogen-free flame-retardant polyolefin composite material |
-
2017
- 2017-10-19 CN CN201710979673.XA patent/CN107828170A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105086345A (en) * | 2015-08-13 | 2015-11-25 | 中国科学院长春应用化学研究所 | Static ring material for ship propeller shaft seal lubricating and preparation method thereof |
| CN105330947A (en) * | 2015-12-04 | 2016-02-17 | 苏州知瑞光电材料科技有限公司 | LDPE electromagnetic shielding material and preparation method thereof |
| CN105885188A (en) * | 2016-05-03 | 2016-08-24 | 山东泰开高分子材料有限公司 | Preparation and using method of chemical crosslinking low-smoke halogen-free flame-retardant polyolefin composite material |
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