CN107828108A - One kind is applied to sanitary napkin counterdie polyethylene composition and its manufacturing process - Google Patents
One kind is applied to sanitary napkin counterdie polyethylene composition and its manufacturing process Download PDFInfo
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- CN107828108A CN107828108A CN201711051684.8A CN201711051684A CN107828108A CN 107828108 A CN107828108 A CN 107828108A CN 201711051684 A CN201711051684 A CN 201711051684A CN 107828108 A CN107828108 A CN 107828108A
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- Prior art keywords
- sanitary napkin
- polyethylene composition
- mixing
- counterdie
- auxiliary agent
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/06—Polyethene
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/16—Applications used for films
-
- 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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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
- C08L2207/062—HDPE
-
- 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)
Abstract
The invention discloses one kind to be applied to sanitary napkin counterdie polyethylene composition and its manufacturing process, by weight percentage, by being formed with lower part, MLLDPE 4% 6%, LDPE 9% 12%, HDPE 9% 12%, MDPE 24% 28%, auxiliary agent 0.4% 0.7%, calcium carbonate 45% 50%；Above-mentioned material is extruded by mixing and in double screw extruder, is granulated, and must be applied to sanitary napkin counterdie polyethylene composition.Said composition gas permeability, ability resistant to pressure are good, while film grammes per square metre is reduced when said composition is manufactured into sanitary napkin counterdie and also can guarantee that the required performance and deflection of film product production, greatly save production cost.
Description
Technical field
The present invention relates to one kind to be applied to sanitary napkin counterdie polyethylene composition and its manufacturing process.
Background technology
Sanitary napkin counterdie in market is more by polyethylene composition by stretching film forming and film forming being carried out into positioning cutting
Make and form, the counterdie main performance of wherein sanitary napkin is determined by the performance of polyethylene composition, the sanitary napkin counterdie in market
The performance of the following aspects is embodied emphatically：Air penetrability, waterproof, tensile strength, the performance in terms of these determine that use is defended
Comfort level and tidiness during raw towel, the wherein preferable counterdie of air penetrability just prevent vapor from can not exclude and causing
It is sultry, and the difference of water resistance then determines whether sanitary napkin has the phenomenon of leakage, is needed at present in industry thin by reducing
When film grammes per square metre is to reduce production cost, produce film performance and deflection substantially less than production requirement.
The content of the invention
For overcome the deficiencies in the prior art, the present invention provide it is a kind of be applied to sanitary napkin counterdie polyethylene composition and
Its manufacturing process.
The technical solution adopted for the present invention to solve the technical problems is：One kind is applied to sanitary napkin counterdie polyethylene group
Compound, wherein：By weight percentage, by being formed with lower part,
Wherein：The auxiliary agent is antioxidant.
Wherein：The auxiliary agent is PPA.
Wherein：Accounting is MLLDPE 5.5%, LDPE 10%, HDPE 11.5%, MDPE24.5%, helped in the formula
Agent 0.5%, calcium carbonate 48%.
Wherein：Accounting is MLLDPE 5%, LDPE 10%, HDPE 10.5%, MDPE26%, auxiliary agent in the composition
0.5%th, calcium carbonate 48%.
A kind of manufacturing process of sanitary napkin counterdie polyethylene composition, including following methods：First by MLLDPE,
The height that each raw material of LDPE, HDPE, MDPE is poured into batch mixer in proportion is mixed in cylinder, mixes 5min, and mixing temperature is 80 DEG C；Then plus
Enter auxiliary agent into same high mixed cylinder, mixed with above-mentioned raw materials, mixing temperature is 80 DEG C, mixes duration 10min, and mixing finishes
Above material is transferred to low mixing machine afterwards and carries out cooling mixing 10min, mixing temperature is 25 DEG C, is shut down after mixing, on
Raw material is stated as standby material, standby material is transferred in the weight scale of double screw extruder A feed openings, calcium carbonate is respectively placed in
In double screw extruder B feed openings weight scale, in C feed opening weight scales；Start double screw extruder and set automatic formulation and press
Blanking is carried out according to A feed openings 50%-54%, B feed opening 27%-30%, C feed opening 18%-21% ratio, and is squeezed
Go out, cool down, be granulated, sanitary napkin polyethylene composition is made, accounting is MLLDPE4%-6% in the composition；LDPE9%-
12%；HDPE9%-12%；MDPE 24%-28%；Auxiliary agent 0.4%-0.7%；Calcium carbonate 45%-50%.
The beneficial effects of the invention are as follows：Said composition end properties are excellent, solve the saturating of PE counterdies required in industry
The demands such as gas, stretch-proof and preventing water leakage, while said composition can reduce in the case of the deflection, performance of guarantee counterdie
Film grammes per square metre meets the production requirement of client, and cost is reduced for client, and its technological design in addition rationally makes raw material mixing equal
Even, it is reasonable that the parameters of technique are adjusted, and steady production is cost-effective.
Embodiment
1. raw material
1) resin
2) auxiliary agent
Auxiliary agent:Antioxidant, PPA.
2. performance test standard
Melt index MFR (g/10min) GB/T3682-2000
Ultimate strength 3.5-5
3. equipment and instrument
Twin-screw extrusion captain/footpath=72
Mixer
4. embodiment 1:
First by each raw material difference by weight percentage 5%, 10%, 11%, 25.5% of MLLDPE, LDPE, HDPE, MDPE
The height for being poured into batch mixer is mixed in cylinder, mixes 5min, and mixing temperature is 80 DEG C, rotating speed 200rpm；Then formula total amount is added
0.5% auxiliary agent is sufficiently mixed into same high mixed cylinder with above-mentioned raw materials, and mixing temperature is 80 DEG C, a length of during mixing
10min, above material is transferred to low mixing machine after mixing and carries out cooling mixing 10min, rotating speed 200rpm, mixing temperature
25 DEG C, until in low mixing tank temperature of charge be 25 DEG C, shut down after mixing, above-mentioned raw materials are as standby material.By standby material
It is transferred in the weight scale of double screw extruder A feed openings, calcium carbonate is respectively placed in double screw extruder B feed opening weight scales
In interior, C feed opening weight scales；Start double screw extruder, when temperature reaches 200 DEG C and constant temperature 10min, setting automatic formulation is pressed
According to A feed openings 51%, B feed openings 29%, the ratio of C feed openings 19% carries out blanking, and is extruded, cooled down, be granulated, double spiral shells
Set in bar extruder engine speed be each zone temperatures of 600rpm be 200 DEG C, 210 DEG C, 190 DEG C, 185 DEG C, 180 DEG C, 170
DEG C, 160 DEG C, the type of cooling is water cooling, obtained sanitary napkin polyethylene composition.
5. embodiment 2:
First by each raw material of MLLDPE, LDPE, HDPE, MDPE respectively by weight percentage 5.5%, 10%, 11.5%,
24.5% height for being poured into batch mixer is mixed in cylinder, mixes 5min, and mixing temperature is 80 DEG C, rotating speed 200rpm；Then formula is added
The auxiliary agent of total amount 0.5% is sufficiently mixed, mixing temperature is 80 DEG C, mixes duration into same high mixed cylinder with above-mentioned raw materials
10min, above material is transferred to low mixing machine after mixing and carries out cooling mixing 10min, rotating speed 200rpm, mixing temperature
Spend for 25 DEG C, until in low mixing tank temperature of charge be 25 DEG C, shut down after mixing, above-mentioned raw materials are as standby material.Will be standby
Materials are transferred in the weight scale of double screw extruder A feed openings, and it is salty that calcium carbonate is respectively placed in into double screw extruder B blankings
Measure in scale, in C feed opening weight scales；Start double screw extruder, when temperature reaches 200 DEG C and constant temperature 10min, setting is matched somebody with somebody automatically
Side is extruded, cooled down, is granulated according to A feed openings 51%, B feed openings 29%, the ratio progress blanking of C feed openings 19%,
Set in double screw extruder engine speed be each zone temperatures of 600rpm be 200 DEG C, 210 DEG C, 190 DEG C, 185 DEG C, 180 DEG C,
170 DEG C, 160 DEG C, the type of cooling is water cooling, obtained sanitary napkin polyethylene composition.
6. embodiment 3:
First by each raw material difference by weight percentage 5%, 10%, 10.5%, 26% of MLLDPE, LDPE, HDPE, MDPE
The height for being poured into batch mixer is mixed in cylinder, mixes 5min, and mixing temperature is 80 DEG C, rotating speed 200rpm；Then formula total amount is added
0.5% auxiliary agent is sufficiently mixed into same high mixed cylinder with above-mentioned raw materials, and mixing temperature is 80 DEG C, a length of during mixing
10min, above material is transferred to low mixing machine after mixing and carries out cooling mixing 10min, rotating speed 200rpm, mixing temperature
Spend for 25 DEG C, until in low mixing tank temperature of charge be 25 DEG C, shut down after mixing, above-mentioned raw materials are as standby material.Will be standby
Materials are transferred in the weight scale of double screw extruder A feed openings, and it is salty that calcium carbonate is respectively placed in into double screw extruder B blankings
Measure in scale, in C feed opening weight scales；Start double screw extruder, when temperature reaches 200 DEG C and constant temperature 10min, setting is matched somebody with somebody automatically
Side is extruded, cooled down, is granulated according to A feed openings 51%, B feed openings 29%, the ratio progress blanking of C feed openings 19%,
Set in double screw extruder engine speed be each zone temperatures of 600rpm be 200 DEG C, 210 DEG C, 190 DEG C, 185 DEG C, 180 DEG C,
170 DEG C, 160 DEG C, the type of cooling is water cooling, obtained sanitary napkin polyethylene composition.
Implementation result is carried out below by way of specific experiment to the present invention to verify：
7. test (one)：
To above example of the present invention be made suitable for sanitary napkin counterdie polyethylene composition and by extrusion-blown modling into
Carry out positioning at a high speed after film to cut so as to which sanitary napkin counterdie be made, the performance of film forming determines performance and the decision of sanitary napkin counterdie
Made sanitary napkin counterdie effect is cut in positioning, and it is as follows that the performance being measured after counterdie is made in said composition：
| Project | Unit | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Water pressure resistance | mmH2O | 350-450 | 380-450 | 400-500 |
| Gas permeability | CFM | 3.2-3.5 | 4.1-4.5 | 3.3-3.8 |
| Steam penetrating capacity | g/m2·24h | 1500-3300 | 1300-3200 | 1400-3200 |
The correction data being measured after film is made with prior art for this patent formula below:
By above-mentioned correction data this patent formula can be found to be manufactured into after sanitary napkin counterdie reaching to be reached with prior art
To performance and deflection in the case of the sanitary napkin counterdie of low grammes per square metre can be produced than prior art, added in resin a small amount of
Auxiliary agent powder and calcium carbonate, such technique make raw material mixing more uniform.It can be obtained by the above results, counterdie is made in measure composition
Can performance it is excellent, meet a kind of required highly-breathable and leakproof water problems in industry, during said composition manufacture film forming
Ensure that film grammes per square metre can be reduced to meet the production requirement of client in the case of the deflection of counterdie, performance, for client reduce into
This, said composition is applied to manufacture sanitary napkin counterdie.
A kind of sanitary napkin counterdie of the present invention can also use the component of following examples to be made with polyethylene composition：
| Raw material | Embodiment 4 | Embodiment 5 | Embodiment 6 | Embodiment 7 |
| MLLDPE | 5% | 5.5% | 5.5% | 5.5% |
| LDPE | 10% | 11% | 10% | 10% |
| HDPE | 10% | 10.5% | 10.5% | 10% |
| MDPE | 26.4% | 24.5% | 25.5% | 26% |
| Auxiliary agent | 0.6% | 0.5% | 0.5% | 0.5% |
| Calcium carbonate | 48% | 48% | 48% | 48% |
Claims (6)
1. one kind is applied to sanitary napkin counterdie polyethylene composition, it is characterised in that：By weight percentage, by with lower part
Composition,
A kind of 2. sanitary napkin counterdie polyethylene composition according to claim 1, it is characterised in that：
The auxiliary agent is antioxidant.
A kind of 3. sanitary napkin counterdie polyethylene composition according to claim 1, it is characterised in that：
The auxiliary agent is PPA.
A kind of 4. sanitary napkin counterdie polyethylene composition according to claim 1, it is characterised in that：
In the formula accounting be MLLDPE 5.5%, LDPE 10%, HDPE 11.5%, MDPE 24.5%, auxiliary agent 0.5%,
Calcium carbonate 48%.
A kind of 5. sanitary napkin counterdie polyethylene composition according to claim 1, it is characterised in that：
Accounting is MLLDPE 5%, LDPE 10%, HDPE 10.5%, MDPE 26%, auxiliary agent 0.5%, carbonic acid in the composition
Calcium 48%.
A kind of 6. manufacturing process of sanitary napkin counterdie polyethylene composition, including following methods：First by MLLDPE,
The height that each raw material of LDPE, HDPE, MDPE is poured into batch mixer in proportion is mixed in cylinder, mixes 5min, and mixing temperature is 80 DEG C；Then plus
Enter auxiliary agent into same high mixed cylinder, mixed with above-mentioned raw materials, mixing temperature is 80 DEG C, mixes duration 10min, and mixing finishes
Above material is transferred to low mixing machine afterwards and carries out cooling mixing 10min, mixing temperature is 25 DEG C, is shut down after mixing, on
Raw material is stated as standby material, standby material is transferred in the weight scale of double screw extruder A feed openings, calcium carbonate is respectively placed in
In double screw extruder B feed openings weight scale, in C feed opening weight scales；Start double screw extruder and set automatic formulation and press
Blanking is carried out according to A feed openings 50%-54%, B feed opening 27%-30%, C feed opening 18%-21% ratio, and is squeezed
Go out, cool down, be granulated, sanitary napkin polyethylene composition is made, accounting is MLLDPE4%-6% in the composition；LDPE9%-
12%；HDPE9%-12%；MDPE 24%-28%；Auxiliary agent 0.4%-0.7%；Calcium carbonate 45%-50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711051684.8A CN107828108A (en) | 2017-10-31 | 2017-10-31 | One kind is applied to sanitary napkin counterdie polyethylene composition and its manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711051684.8A CN107828108A (en) | 2017-10-31 | 2017-10-31 | One kind is applied to sanitary napkin counterdie polyethylene composition and its manufacturing process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107828108A true CN107828108A (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711051684.8A Pending CN107828108A (en) | 2017-10-31 | 2017-10-31 | One kind is applied to sanitary napkin counterdie polyethylene composition and its manufacturing process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114067A (en) * | 2019-12-13 | 2020-05-08 | 新乐华宝塑料薄膜有限公司 | Ultra-low gram weight polyethylene film and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460058A (en) * | 2001-02-06 | 2003-12-03 | 三井化学株式会社 | Porous film and process for producing same |
| CN101747548A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Compound for preparation of high-strength polyolefin permeable membrane and preparation method thereof |
| CN104558751A (en) * | 2013-10-25 | 2015-04-29 | 中国石油化工股份有限公司 | Composition and method for preparing ultrathin gas-permeable film |
| CN106397918A (en) * | 2016-09-07 | 2017-02-15 | 上海紫华企业有限公司 | Moisture permeable polyolefin micropore breathable film |
-
2017
- 2017-10-31 CN CN201711051684.8A patent/CN107828108A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1460058A (en) * | 2001-02-06 | 2003-12-03 | 三井化学株式会社 | Porous film and process for producing same |
| CN101747548A (en) * | 2008-12-16 | 2010-06-23 | 金发科技股份有限公司 | Compound for preparation of high-strength polyolefin permeable membrane and preparation method thereof |
| CN104558751A (en) * | 2013-10-25 | 2015-04-29 | 中国石油化工股份有限公司 | Composition and method for preparing ultrathin gas-permeable film |
| CN106397918A (en) * | 2016-09-07 | 2017-02-15 | 上海紫华企业有限公司 | Moisture permeable polyolefin micropore breathable film |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111114067A (en) * | 2019-12-13 | 2020-05-08 | 新乐华宝塑料薄膜有限公司 | Ultra-low gram weight polyethylene film and preparation method thereof |
| CN111114067B (en) * | 2019-12-13 | 2022-03-25 | 新乐华宝塑料薄膜有限公司 | Ultra-low gram weight polyethylene film and preparation method thereof |
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Application publication date: 20180323 |