CN104558751A - Composition and method for preparing ultrathin gas-permeable film - Google Patents
Composition and method for preparing ultrathin gas-permeable film Download PDFInfo
- Publication number
- CN104558751A CN104558751A CN201310512388.9A CN201310512388A CN104558751A CN 104558751 A CN104558751 A CN 104558751A CN 201310512388 A CN201310512388 A CN 201310512388A CN 104558751 A CN104558751 A CN 104558751A
- Authority
- CN
- China
- Prior art keywords
- weight
- parts
- density polyethylene
- polyethylene
- ultra
- Prior art date
- 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.)
- Granted
Links
Classifications
-
- 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
- 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
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- 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
-
- 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
-
- 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
- C08L2207/066—LDPE (radical process)
Abstract
The invention provides a composition and a method for preparing an ultrathin gas-permeable film. The gas-permeable film composition comprises a polyethylene blend, inorganic filler, a dispersant, an antioxidant and processing additives, wherein the polyethylene blend comprises medium-density polyethylene and linear low-density polyethylene, and can also comprise low-density polyethylene; the inorganic filler is micron or nano-scale calcium carbonate; and the dispersant is superfine fully-vulcanized powder rubber. The composition has better processing performance and mechanical properties, the casting and elongation rate are increased and meanwhile the gram weight can be further decreased to reduce the costs; the superfine fully-vulcanized powder rubber can assist the uniform dispersion of the inorganic filler in the resin so that the uniformity of the gas-permeable film is ensured.
Description
Technical field
The present invention relates to processing modified plastics field, be specifically related to a kind of polyethylene composition possessing high working property for ultra-thin breathable film, and the preparation method of ultra-thin breathable film.
Background technology
Air-permeable envelope also claims " waterproof and breathable microporous membrane ", has the feature of permeable watertight, and gas can be allowed to pass through, and can intercept again the liquid as water simultaneously; It not only breathes freely but also soft as fabric, moisture content can be isolated again as plastics bag, therefore be called as " film that can breathe ", be widely used in as the sanitary product such as baby paper diaper and women sanitary articles, with fields such as medical treatment, food product pack, agricultural, weaving, buildings, it is the novel material developed rapidly in the world.
Air-permeable envelope is succeeded in developing by Japan the earliest, and is greatly developed in Korea S, and product is exported to all over the world in a large number, and wherein China is maximum product demand ground.Gordian technique---the air-permeable envelope resin that current air-permeable envelope is produced, rests in several overseas enterprise's hands.
Air-permeable envelope utilizes thermoplastic, polymeric materials for raw material, by filling inorganic mineral filler, such as nano-calcium carbonate etc., preparation becomes air-permeable envelope master batch, then, after curtain coating or blown film make film, be prepared from through unidirectional or stretch processes between the softening temperature and melt temperature of polymkeric substance.Under stretching action, around inorganic particulate, form the space of certain size, become the Waterproof Breathable microporous membrane with intercommunication network shape structure.Air-permeable envelope can allow the gas such as water vapour, air to pass through, but does not allow liquid to pass through.
The most frequently used thermoplastic polymer preparing air-permeable envelope is polyolefine material, can cause difficulty to fast filming and stretching owing to adding high amount of inorganic filler, therefore air-permeable envelope has higher requirement to a series of links such as raw material, weighting material, process for treating surface, curtain coating, stretchings; And along with the improving constantly of product quality, being growing more intense of market competition, and the enhancing of people's environmental consciousness, market proposes light-weighted requirement to air-permeable envelope; Lightweight can reduce product cost, improve the comfort of human body, but has higher requirement to the various aspects of performance of air-permeable envelope resin.
Patent WO-A-01/79343 discloses a kind ofly has stronger resistance to impact shock and the higher water vapor microporous thermoplastic's film through filter, by the calcium carbonate of 40 ~ 60%, 30 ~ 40% linear low density polyethylene (LLDPE) and 1 ~ 10% Low Density Polyethylene (LDPE) blended after progressively stretching make.
Chinese patent 03812642.7 discloses a kind of air-permeable envelope with higher water vapour permeability, good mechanical properties and processing characteristics, adopts bimodal LLDPE as matrix resin, add a certain amount of ion filler blended after be filmed.Bimodal LLDPE can the physical strength of Balanced films and processing characteristics, thus can reduce grammes per square metre or the thickness of air-permeable envelope to a certain extent, but due to the existence of low molecular weight polyethylene a part of in system, the physical strength of air-permeable envelope will be affected.
Chinese patent 200810220057.7 discloses a kind of mixture for the preparation of high-strength polyolefin permeable membrane and method thereof, and component comprises: polyolefin resin, micron order and nano sized inorganic fillers, oxidation inhibitor, processing aid, coupling agent.Wherein nanometer inorganic filler can improve the mechanical property of polyolefin permeable membrane, reduce the thickness of air-permeable envelope, and can be prepared the air-permeable envelope of high strength highly air-permeable by adjusting process condition; But because the consistency of nanometer inorganic filler and polyolefin resin is poor, the ventilative ununiformity of material can be caused and affect the use of air-permeable envelope.
Chinese patent 200810110060.3 discloses a kind of composition of melt-processable, comprises particle fillers, LDPE, LLDPE, dispersion agent and fluoropolymer.After surface modification is carried out to weighting material, while guaranteeing its high dispersing, effectively can reduce metal defects in the course of processing, avoid in extrusion, at high temperature there is charing and accumulate in die head aperture place in dispersion agent, causes instability, the product extruded to occur the phenomenon such as uneven.But operation is more complicated, tooling cost is higher.
Summary of the invention
In order to overcome the deficiency that prior art exists, the invention provides a kind of composition for high working property, ultra-thin breathable film, and the preparation method of ultra-thin breathable film; While the permeability ensureing air-permeable envelope, improve its mechanical property, obtain thinner air-permeable envelope, and there is good processing characteristics.
A kind of composition preparing ultra-thin breathable film of the present invention is achieved in that
A kind of composition preparing ultra-thin breathable film, contain in described composition: polyethylene blend, mineral filler, oxidation inhibitor and processing aid: be 100 parts in the gross weight of described polyethylene blend and described mineral filler, the weight of described polyethylene blend is 40 ~ 60 parts, the weight of described mineral filler is 40 ~ 60 parts, the weight of described oxidation inhibitor is 0.5 ~ 3 part, and the weight of described processing aid is 0.2 ~ 1.0 part;
Medium-density polyethylene (MDPE) containing wide distribution in described polyethylene blend and linear low density polyethylene (LLDPE);
The medium-density polyethylene of described wide distribution, its density is 0.935g/cm
3~ 0.945g/cm
3, melt flow rate (MFR) (MFR) is 0.1g/10min ~ 8g/10min(190 DEG C, 2.16kg), molecular weight distribution is 8 ~ 20; Be 100 parts in the gross weight of described polyethylene blend, the weight of the medium-density polyethylene of described wide distribution is 30 ~ 70 parts;
Described linear low density polyethylene, its comonomer is butylene, hexene or octene, and catalyzer is Zieglor-Natta catalyzer or metallocene catalyst; Its density is 0.890g/cm
3~ 0.925g/cm
3, melt flow rate (MFR) (MFR) is 1g/10min ~ 10g/10min(2.16kg, 190 DEG C); Be 100 parts in the gross weight of described polyethylene blend, the weight of described linear low density polyethylene is 70 ~ 30 parts;
Described mineral filler is selected from: one or more in calcium carbonate, barium sulfate, talcum powder or silicon-dioxide, and its particle diameter is 0.1 μm ~ 50 μm.
In the specific implementation, the medium-density polyethylene of described wide distribution, its melt flow rate (MFR) (MFR) is 2g/10min ~ 5g/10min(190 DEG C, 2.16kg), molecular weight distribution is 8 ~ 12; Be 100 parts in the gross weight of described polyethylene blend, the weight of the medium-density polyethylene of described wide distribution is 45 ~ 55 parts; Described linear low density polyethylene, its melt flow rate (MFR) (MFR) is 2g/10min ~ 5g/10min(2.16kg, 190 DEG C); Be 100 parts in the gross weight of described polyethylene blend, the weight of described linear low density polyethylene is 45 ~ 55 parts.
In the specific implementation, also Low Density Polyethylene (LDPE) is contained in described polyethylene blend; Described Low Density Polyethylene, its melt flow rate (MFR) (MFR) is 2g/cm
3~ 20g/cm
3(190 DEG C, 2.16kg), preferably 4g/cm
3~ 7g/cm
3; Be 100 parts in the gross weight of described polyethylene blend, the weight of described Low Density Polyethylene is 1 ~ 20 part, and the weight of the medium-density polyethylene of described wide distribution is 40 ~ 55 parts, and the weight of described linear low density polyethylene is 40 ~ 55 parts.
In the specific implementation, described mineral filler is calcium carbonate, and its particle diameter is 0.1 μm ~ 3 μm; Be 100 parts in the gross weight of described polyethylene blend and described mineral filler, the weight of described mineral filler is 45 ~ 55 parts, and the weight of described polyethylene blend is 45 ~ 55 parts; Described mineral filler uses silane coupling agent or stearic acid to carry out surface modification; Described oxidation inhibitor is selected from: pentaerythritol tetrathioglycollate, four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester (antioxidant 1010), three (2,4-di-t-butyl) phenyl-phosphite (irgasfos 168), propionic acid octadecyl, 1, one or more in 3 three (2-methyl-4-hydroxyl-5-tert-butyl-phenyl) butane or alkylation polyphenol; Preferred described oxidation inhibitor is antioxidant 1010 and irgasfos 168, and the amount ratio of antioxidant 1010 and irgasfos 168 is 2:1 ~ 1:2(weight).Described processing aid is white oil or polyethylene wax.
In the specific implementation, also containing dispersion agent in described composition, for the patented product of the Sinopec Beijing Chemical Research Institute that patent US6423760 and CN00816450 etc. introduce, be 100 parts in the gross weight of described polyethylene blend and described mineral filler, the weight of described dispersion agent is 0.5 ~ 3.0 part;
Described dispersion agent is ultra-fine fully vulcanized powder rubber, be selected from: one or more in full sulfuration styrene-butadiene rubber(SBR), full sulfuration carboxylic styrene-butadiene rubber, full vulcanized acrylate rubber, full-sulfurized nitrile rubber, full sulfuration carboxy nitrile rubber, full sulphurated siliastic or full sulfuration vinylpyridiene-styrene-butadiene rubber, preferred described dispersion agent is that full sulfuration styrene-butadiene rubber(SBR) is or/and full sulfuration carboxylic styrene-butadiene rubber; The gel content of described ultra-fine fully vulcanized powder rubber is greater than 60wt%, particle diameter is 50 ~ 2000nm, preferred particle diameter is 100 ~ 1000nm, preferred particle diameter is 150 ~ 500nm.
Another subject matter of the present invention: a kind of preparation method of ultra-thin breathable film is achieved in that
Use the described composition of one of claim 1 ~ 8 to prepare a method for ultra-thin breathable film, the method comprises the following steps:
(1) by described polyethylene blend, described mineral filler, described oxidation inhibitor and described processing aid, or by described polyethylene blend, described mineral filler, described oxidation inhibitor, described processing aid and described dispersion agent, mix through high speed mixer;
(2) material mixed is added twin screw extruder, extrudes, pelletizing drying, obtain the ultra-thin breathable film composition of high working property;
(3) the ultra-thin breathable film composition curtain coating of described high working property is become film, then longitudinally stretch, stretch ratio is 1.5 ~ 5, preferred stretch ratio is 1.5 ~ 2.5, obtain ultra-thin breathable film.
High working property provided by the invention, ultra-thin breathable film composition have the following advantages: the matrix resin selected is the blend of wide distribution medium-density polyethylene and linear low density polyethylene, the polyethylene of wide distribution has higher mechanical property and preferably processibility simultaneously, low molecular weight part can provide good processing characteristics, high molecular weight moieties can provide good mechanical property, therefore, it is possible to obtain good processibility in the production process of air-permeable envelope, improve curtain coating and draw speed, and can grammes per square metre be reduced further reduce costs.In addition, ultra-fine fully vulcanized powder rubber can be used as dispersed in resin of dispersion agent microwaveassisted inorganic filler, ensures the homogeneity of air-permeable envelope product.
Embodiment
Be described in further detail technical scheme of the present invention below in conjunction with embodiment, protection scope of the present invention is not limited to following embodiment.
Embodiment 1
Be 0.937g/cm by wide distribution MDPE(density
3, MFR is 4.5g/10min, molecular weight distribution is 15) be 2.0g/10min with LLDPE(MFR), calcium carbonate (particle diameter 0.1 μm ~ 3 μm, surface is through coupling agent treatment), oxidation inhibitor and processing aid carry out blended, the composition (mass ratio 1:1) of what wherein oxidation inhibitor was selected is antioxidant 1010 and irgasfos 168, what processing aid was selected is white oil.The parts by weight of each component are as shown in table 1.
Twin screw extruder is added after each component being mixed in homogenizer, extrusion temperature is 230 DEG C, extrude, pelletizing, obtain the composition of high working property, ultra-thin breathable film after drying, be 1.5 times of initial length after also longitudinally being stretched by casting machine curtain coating, obtain air-permeable envelope product, the performance of gained film is as shown in table 2.
Embodiment 2
Metallocene LLDPE(MFR is selected to be 3.0g/10min) LLDPE in alternate embodiment 1, other blend components are identical with embodiment 1, and the parts by weight of each component are as shown in table 1; Film-forming method is identical with embodiment 1, and the performance of gained film is as shown in table 2.
Result shows, and the LLDPE adopting metallocene LLDPE to substitute Zieglor-Natta catalysis can improve the mechanical property of air-permeable envelope further, thus reduces grammes per square metre further.
Embodiment 3
Blend components is identical with embodiment 1, and the parts by weight of each component are as shown in table 1; Twin screw extruder is added after each component being mixed in homogenizer, extrusion temperature is 230 DEG C, extrude, pelletizing, obtain the composition of high working property, ultra-thin breathable film after drying, be 2.0 times of initial length after also longitudinally being stretched by casting machine curtain coating, obtain air-permeable envelope product, the performance of gained film is as shown in table 2.
Embodiment 4
In blend components, also contain LDPE(MFR is 7.0g/10min), other blend components are identical with embodiment 1, and the parts by weight of each component are as shown in table 1; Film-forming method is identical with embodiment 1, and the performance of gained film is as shown in table 2.
Embodiment 5
Also containing ultra-fine form of finely divided powder, mehtod styrene-butadiene rubber(SBR) (patented product for the Sinopec Beijing Chemical Research Institute that patent US6423760 and CN00816450 etc. introduce) in blend components, other blend components are identical with embodiment 1, and the parts by weight of each component are as shown in table 1; Film-forming method is identical with embodiment 1, and the performance of gained film is as shown in table 2.
Rubber latex is obtained by spray drying process sulfuration by described form of finely divided powder, mehtod styrene-butadiene rubber(SBR), and product grade is VP101, and Beijing Chemical Research Institute produces, and its gel content is greater than 60wt%, swelling index is not more than 15.Form of finely divided powder, mehtod styrene-butadiene rubber(SBR) is nano level, can unrestricted flow and without the need to by separant, therefore there is good dispersiveness, join in high air-permeable envelope of filling, better can isolate mineral filler, thus obtain better dispersion effect, also there is certain lubrication simultaneously, the friction between melt and screw rod can be alleviated in the course of processing, improve the stability of processing and the efficiency of production.
Embodiment 6
Also containing LDPE(trade mark 1C7A in blend components, density is g/cm
3mFR is 7.0g/10min) and ultra-fine form of finely divided powder, mehtod styrene-butadiene rubber(SBR) (patented product for the Sinopec Beijing Chemical Research Institute that patent US6423760 and CN00816450 etc. introduce), other blend components are identical with embodiment 1, and the parts by weight of each component are as shown in table 1; Film-forming method is identical with embodiment 1, and the performance of gained film is as shown in table 2.
Table 1
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 |
| Wide distribution MDPE | 25 | 25 | 25 | 20 | 26 | 18 |
| LLDPE | 25 | 25 | 25 | 20 | 29 | 22 |
| LDPE | 0 | 0 | 0 | 10 | 0 | 5 |
| Mineral filler | 50 | 50 | 50 | 50 | 45 | 55 |
| Dispersion agent | 0 | 0 | 0 | 0 | 1 | 1 |
| Oxidation inhibitor | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Processing aid | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
Table 2
| Embodiment | 1 | 2 | 3 | 4 | 5 | 6 |
| Stretch ratio | 1.5 | 1.5 | 2.0 | 1.5 | 1.5 | 1.5 |
| Longitudinal tensile strength, MPa | 16.5 | 22.3 | 15.9 | 15.5 | 16.2 | 16.0 |
| Longitudinal tensile strain rate, % | 310 | 490 | 290 | 320 | 380 | 370 |
| Transverse tensile strength, MPa | 9.5 | 12.1 | 9.2 | 8.9 | 9.3 | 9.2 |
| Cross direction elongation, % | 440 | 580 | 300 | 450 | 460 | 450 |
| Grammes per square metre, g/m 2 | 23 | 18 | 17 | 20 | 24 | 20 |
| Water vapour permeability, g/m 2/24h | 2800 | 3850 | 4000 | 3100 | 2500 | 3550 |
Claims (10)
1. prepare the composition of ultra-thin breathable film for one kind, contain in described composition: polyethylene blend, mineral filler, oxidation inhibitor and processing aid: be 100 parts in the gross weight of described polyethylene blend and described mineral filler, the weight of described polyethylene blend is 40 ~ 60 parts, the weight of described mineral filler is 40 ~ 60 parts, the weight of described oxidation inhibitor is 0.5 ~ 3 part, and the weight of described processing aid is 0.2 ~ 1.0 part;
Medium-density polyethylene containing wide distribution in described polyethylene blend and linear low density polyethylene;
The medium-density polyethylene of described wide distribution, its density is 0.935g/cm
3~ 0.945g/cm
3, melt flow rate (MFR) is 0.1g/10min ~ 8g/10min(190 DEG C, 2.16kg), molecular weight distribution is 8 ~ 20; Be 100 parts in the gross weight of described polyethylene blend, the weight of the medium-density polyethylene of described wide distribution is 30 ~ 70 parts;
Described linear low density polyethylene, its comonomer is butylene, hexene or octene, and catalyzer is Zieglor-Natta catalyzer or metallocene catalyst; Its density is 0.890g/cm
3~ 0.925g/cm
3, melt flow rate (MFR) is 1g/10min ~ 10g/10min(2.16kg, 190 DEG C); Be 100 parts in the gross weight of described polyethylene blend, the weight of described linear low density polyethylene is 30 ~ 70 parts;
Described mineral filler is selected from: one or more in calcium carbonate, barium sulfate, talcum powder or silicon-dioxide, and its particle diameter is 0.1 μm ~ 50 μm.
2. composition according to claim 1, is characterized in that:
The medium-density polyethylene of described wide distribution, its melt flow rate (MFR) is 2g/10min ~ 5g/10min(190 DEG C, 2.16kg), molecular weight distribution is 8 ~ 12; Be 100 parts in the gross weight of described polyethylene blend, the weight of the medium-density polyethylene of described wide distribution is 45 ~ 55 parts;
Described linear low density polyethylene, its melt flow rate (MFR) is 2g/10min ~ 5g/10min(2.16kg, 190 DEG C); Be 100 parts in the gross weight of described polyethylene blend, the weight of described linear low density polyethylene is 45 ~ 55 parts.
3. composition according to claim 1, is characterized in that:
Also containing Low Density Polyethylene in described polyethylene blend; Described Low Density Polyethylene, its melt flow rate (MFR) is 2g/cm
3~ 20g/cm
3(190 DEG C, 2.16kg);
Be 100 parts in the gross weight of described polyethylene blend, the weight of described Low Density Polyethylene is 1 ~ 20 part, and the weight of the medium-density polyethylene of described wide distribution is 40 ~ 55 parts, and the weight of described linear low density polyethylene is 40 ~ 55 parts.
4. composition according to claim 3, is characterized in that:
Described Low Density Polyethylene, its melt flow rate (MFR) is 4g/cm
3~ 7g/cm
3(190 DEG C, 2.16kg).
5. composition according to claim 1, is characterized in that:
Described mineral filler uses silane coupling agent or stearic acid to carry out surface modification; Be 100 parts in the gross weight of described polyethylene blend and described mineral filler, the weight of described mineral filler is 45 ~ 55 parts, and the weight of described polyethylene blend is 45 ~ 55 parts;
Described oxidation inhibitor is selected from: pentaerythritol tetrathioglycollate, four [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester, three (2,4-di-t-butyl) phenyl-phosphite, propionic acid octadecyl, 1, one or more in 3 three (2-methyl-4-hydroxyl-5-tert-butyl-phenyl) butane or alkylation polyphenol.
6. composition according to claim 5, is characterized in that:
Described oxidation inhibitor is [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester and three (2,4-di-t-butyl) phenyl-phosphite, [methyl-β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] weight ratio of pentaerythritol ester and three (2,4-di-t-butyl) phenyl-phosphite is 2:1 ~ 1:2.
Described mineral filler is calcium carbonate, and its particle diameter is 0.1 μm ~ 3 μm;
Described processing aid is white oil or polyethylene wax.
7. composition according to claim 1, is characterized in that:
Also containing dispersion agent in described composition, be 100 parts in the gross weight of described polyethylene blend and described mineral filler, the weight of described dispersion agent is 0.5 ~ 3.0 part;
Described dispersion agent is ultra-fine fully vulcanized powder rubber, is selected from: one or more in full sulfuration styrene-butadiene rubber(SBR), full sulfuration carboxylic styrene-butadiene rubber, full vulcanized acrylate rubber, full-sulfurized nitrile rubber, full sulfuration carboxy nitrile rubber, full sulphurated siliastic or full sulfuration vinylpyridiene-styrene-butadiene rubber; The gel content of described ultra-fine fully vulcanized powder rubber is greater than 60wt%, particle diameter is 50 ~ 2000nm.
8. composition according to claim 7, is characterized in that:
Described ultra-fine fully vulcanized powder rubber is that full sulfuration styrene-butadiene rubber(SBR) is or/and full sulfuration carboxylic styrene-butadiene rubber; The particle diameter of described ultra-fine fully vulcanized powder rubber is 150 ~ 500nm.
9. adopt the described composition of one of claim 1 ~ 8 to prepare a method for ultra-thin breathable film, the method comprises the following steps:
1) by described polyethylene blend, described mineral filler, described oxidation inhibitor and described processing aid, or by described polyethylene blend, described mineral filler, described oxidation inhibitor, described processing aid and described dispersion agent, mix through high speed mixer;
2) material mixed is added twin screw extruder, extrudes, pelletizing drying, obtain the ultra-thin breathable film composition of high working property;
3) the ultra-thin breathable film composition curtain coating of described high working property is become film, then longitudinally stretch, stretch ratio is 1.5 ~ 5, obtains ultra-thin breathable film.
10. the method preparing ultra-thin breathable film according to claim 9, is characterized in that:
Described stretch ratio is 1.5 ~ 2.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512388.9A CN104558751B (en) | 2013-10-25 | 2013-10-25 | A kind of composition and its method for preparing ultra-thin breathable film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310512388.9A CN104558751B (en) | 2013-10-25 | 2013-10-25 | A kind of composition and its method for preparing ultra-thin breathable film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104558751A true CN104558751A (en) | 2015-04-29 |
| CN104558751B CN104558751B (en) | 2017-06-30 |
Family
ID=53075876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310512388.9A Active CN104558751B (en) | 2013-10-25 | 2013-10-25 | A kind of composition and its method for preparing ultra-thin breathable film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104558751B (en) |
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279937A (en) * | 2015-06-12 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of electromagnetic shielding polyethylene thin film and preparation method thereof |
| CN106633319A (en) * | 2015-10-28 | 2017-05-10 | 中国石油化工股份有限公司 | Polyethylene composition and anti-fog-drop film |
| CN106832531A (en) * | 2017-03-10 | 2017-06-13 | 温州银润包装有限公司 | A kind of preparation technology of high-low temperature resistant PE heat sealable lid films |
| CN106832557A (en) * | 2017-03-10 | 2017-06-13 | 温州银润包装有限公司 | A kind of preparation technology of the high-low temperature resistant PE heat sealable lid films of improvement |
| CN107325386A (en) * | 2017-09-06 | 2017-11-07 | 安徽天大环保新材料股份有限公司 | A kind of high-strength corrosion-resisting polyethylene film |
| CN107353485A (en) * | 2016-05-10 | 2017-11-17 | 合肥杰事杰新材料股份有限公司 | A kind of antibacterial, ventilating film master batch and preparation method thereof |
| CN107513197A (en) * | 2016-06-18 | 2017-12-26 | 合肥杰事杰新材料股份有限公司 | A kind of waterproof and breathable curtain coating film composite material and preparation method thereof |
| CN107828108A (en) * | 2017-10-31 | 2018-03-23 | 尹斓 | One kind is applied to sanitary napkin counterdie polyethylene composition and its manufacturing process |
| CN108623875A (en) * | 2017-03-26 | 2018-10-09 | 合肥杰事杰新材料股份有限公司 | A kind of High-strength air-permeable film composite material and preparation method |
| CN108715656A (en) * | 2018-05-28 | 2018-10-30 | 池州市锐强新材料有限公司 | A kind of PE/CaCO3Ventilative film master batch and preparation method thereof |
| CN109135030A (en) * | 2018-05-31 | 2019-01-04 | 成都云端智联科技有限公司 | A kind of polyolefin light quantum ventilated membrane and preparation method thereof |
| CN110669282A (en) * | 2019-10-11 | 2020-01-10 | 广州市合诚化学有限公司 | Adhesive resin for multilayer co-extrusion barrier packaging and preparation method and application thereof |
| CN111548515A (en) * | 2020-04-15 | 2020-08-18 | 哈尔滨理工大学 | Post-treatment process of non-oxide ceramic/polyvinylidene fluoride composite film |
| CN112537109A (en) * | 2020-10-30 | 2021-03-23 | 永新股份（黄山）包装有限公司 | High-breathability antistatic film for medical protective clothing and preparation method thereof |
| CN112852048A (en) * | 2021-01-12 | 2021-05-28 | 中广核俊尔(浙江)新材料有限公司 | PE (polyethylene) breathable film material as well as preparation method and application thereof |
| CN113603957A (en) * | 2021-08-06 | 2021-11-05 | 上海紫华薄膜科技有限公司 | Waterproof breathable film and preparation method thereof |
| WO2023056213A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aids |
| WO2023056250A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Fluoropolymer-free processing aids for ethylene-based polymers |
| CN116063770A (en) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | Polyethylene composition, preparation method and application thereof, and polyolefin microporous breathable film |
| CN116144093A (en) * | 2023-03-01 | 2023-05-23 | 福建冠中科技有限公司 | High-filling tensile umbrella cover composite material and manufacturing method thereof |
| WO2023149984A1 (en) | 2022-02-07 | 2023-08-10 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aids |
| WO2023154744A1 (en) | 2022-02-14 | 2023-08-17 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aids |
| CN116790123A (en) * | 2023-05-26 | 2023-09-22 | 东莞市欣荣天丽科技实业有限公司 | Food deoxidizer and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469899A (en) * | 2000-10-13 | 2004-01-21 | 伊奎斯塔化学有限公司 | Polyethylene blends and films |
| CN1152082C (en) * | 1999-12-03 | 2004-06-02 | 中国石油化工集团公司 | Full vulcanized powdered rubber with controllable particle diameter, preparing method thereof |
| CN1668689A (en) * | 2002-06-20 | 2005-09-14 | 博里利斯技术公司 | Breathable films |
| CN101643559A (en) * | 2009-09-15 | 2010-02-10 | 浙江越韩科技透气材料有限公司 | Ultrathin high porosity film and preparation method thereof |
| CN101942136A (en) * | 2010-09-15 | 2011-01-12 | 镇国广 | Polyethylene cable material with energy conservation, environmental protection and environmental stress cracking resistance |
| CN102372895A (en) * | 2010-08-22 | 2012-03-14 | 龙口市道恩工程塑料有限公司 | High-temperature-resistant TPE (thermoplastic elastomer) material used for extrusion blow molding |
| CN102977445A (en) * | 2012-11-23 | 2013-03-20 | 重庆锦利塑业有限公司 | High-density polyethylene material |
| CN103073769A (en) * | 2011-10-26 | 2013-05-01 | 中国石油化工股份有限公司 | Antibacterial polyethylene composition and preparation method thereof |
-
2013
- 2013-10-25 CN CN201310512388.9A patent/CN104558751B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1152082C (en) * | 1999-12-03 | 2004-06-02 | 中国石油化工集团公司 | Full vulcanized powdered rubber with controllable particle diameter, preparing method thereof |
| CN1469899A (en) * | 2000-10-13 | 2004-01-21 | 伊奎斯塔化学有限公司 | Polyethylene blends and films |
| CN1668689A (en) * | 2002-06-20 | 2005-09-14 | 博里利斯技术公司 | Breathable films |
| CN101643559A (en) * | 2009-09-15 | 2010-02-10 | 浙江越韩科技透气材料有限公司 | Ultrathin high porosity film and preparation method thereof |
| CN102372895A (en) * | 2010-08-22 | 2012-03-14 | 龙口市道恩工程塑料有限公司 | High-temperature-resistant TPE (thermoplastic elastomer) material used for extrusion blow molding |
| CN101942136A (en) * | 2010-09-15 | 2011-01-12 | 镇国广 | Polyethylene cable material with energy conservation, environmental protection and environmental stress cracking resistance |
| CN103073769A (en) * | 2011-10-26 | 2013-05-01 | 中国石油化工股份有限公司 | Antibacterial polyethylene composition and preparation method thereof |
| CN102977445A (en) * | 2012-11-23 | 2013-03-20 | 重庆锦利塑业有限公司 | High-density polyethylene material |
Cited By (34)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106279937B (en) * | 2015-06-12 | 2019-04-19 | 中国石油化工股份有限公司 | A kind of electromagnetic shielding polyethylene film and preparation method thereof |
| CN106279937A (en) * | 2015-06-12 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of electromagnetic shielding polyethylene thin film and preparation method thereof |
| CN106633319A (en) * | 2015-10-28 | 2017-05-10 | 中国石油化工股份有限公司 | Polyethylene composition and anti-fog-drop film |
| CN107353485A (en) * | 2016-05-10 | 2017-11-17 | 合肥杰事杰新材料股份有限公司 | A kind of antibacterial, ventilating film master batch and preparation method thereof |
| CN107353485B (en) * | 2016-05-10 | 2020-11-20 | 合肥杰事杰新材料股份有限公司 | Antibacterial breathable film master batch and preparation method thereof |
| CN107513197B (en) * | 2016-06-18 | 2021-04-09 | 合肥杰事杰新材料股份有限公司 | Waterproof breathable cast film composite material and preparation method thereof |
| CN107513197A (en) * | 2016-06-18 | 2017-12-26 | 合肥杰事杰新材料股份有限公司 | A kind of waterproof and breathable curtain coating film composite material and preparation method thereof |
| CN106832531A (en) * | 2017-03-10 | 2017-06-13 | 温州银润包装有限公司 | A kind of preparation technology of high-low temperature resistant PE heat sealable lid films |
| CN106832557A (en) * | 2017-03-10 | 2017-06-13 | 温州银润包装有限公司 | A kind of preparation technology of the high-low temperature resistant PE heat sealable lid films of improvement |
| CN108623875A (en) * | 2017-03-26 | 2018-10-09 | 合肥杰事杰新材料股份有限公司 | A kind of High-strength air-permeable film composite material and preparation method |
| CN107325386A (en) * | 2017-09-06 | 2017-11-07 | 安徽天大环保新材料股份有限公司 | A kind of high-strength corrosion-resisting polyethylene film |
| CN107828108A (en) * | 2017-10-31 | 2018-03-23 | 尹斓 | One kind is applied to sanitary napkin counterdie polyethylene composition and its manufacturing process |
| CN108715656A (en) * | 2018-05-28 | 2018-10-30 | 池州市锐强新材料有限公司 | A kind of PE/CaCO3Ventilative film master batch and preparation method thereof |
| CN109135030A (en) * | 2018-05-31 | 2019-01-04 | 成都云端智联科技有限公司 | A kind of polyolefin light quantum ventilated membrane and preparation method thereof |
| CN110669282A (en) * | 2019-10-11 | 2020-01-10 | 广州市合诚化学有限公司 | Adhesive resin for multilayer co-extrusion barrier packaging and preparation method and application thereof |
| CN111548515A (en) * | 2020-04-15 | 2020-08-18 | 哈尔滨理工大学 | Post-treatment process of non-oxide ceramic/polyvinylidene fluoride composite film |
| CN112537109A (en) * | 2020-10-30 | 2021-03-23 | 永新股份（黄山）包装有限公司 | High-breathability antistatic film for medical protective clothing and preparation method thereof |
| CN112852048A (en) * | 2021-01-12 | 2021-05-28 | 中广核俊尔(浙江)新材料有限公司 | PE (polyethylene) breathable film material as well as preparation method and application thereof |
| CN113603957A (en) * | 2021-08-06 | 2021-11-05 | 上海紫华薄膜科技有限公司 | Waterproof breathable film and preparation method thereof |
| WO2023056210A2 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Fluorine-free polymer processing aid blends |
| US11702535B2 (en) | 2021-09-30 | 2023-07-18 | Exxonmobil Chemical Patents Inc. | Fluorine-free polymer processing aid blends |
| WO2023056214A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aid masterbatches |
| WO2023056213A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aids |
| WO2023056250A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Fluoropolymer-free processing aids for ethylene-based polymers |
| WO2023056212A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Fluorine-free polymer processing aid blends |
| WO2023056208A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Fluorine-free polymer processing aids including polyethylene glycols |
| WO2023056207A1 (en) | 2021-09-30 | 2023-04-06 | Exxonmobil Chemical Patents Inc. | Fluorine-free polymer processing aids |
| US11643534B2 (en) | 2021-09-30 | 2023-05-09 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aid masterbatches |
| CN116063770A (en) * | 2021-10-29 | 2023-05-05 | 中国石油化工股份有限公司 | Polyethylene composition, preparation method and application thereof, and polyolefin microporous breathable film |
| WO2023149984A1 (en) | 2022-02-07 | 2023-08-10 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aids |
| WO2023149985A1 (en) | 2022-02-07 | 2023-08-10 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aids |
| WO2023154744A1 (en) | 2022-02-14 | 2023-08-17 | Exxonmobil Chemical Patents Inc. | Polyethylene glycol-based polymer processing aids |
| CN116144093A (en) * | 2023-03-01 | 2023-05-23 | 福建冠中科技有限公司 | High-filling tensile umbrella cover composite material and manufacturing method thereof |
| CN116790123A (en) * | 2023-05-26 | 2023-09-22 | 东莞市欣荣天丽科技实业有限公司 | Food deoxidizer and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104558751B (en) | 2017-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104558751A (en) | Composition and method for preparing ultrathin gas-permeable film | |
| CN104558792B (en) | A kind of polyethylene composition and preparation method thereof | |
| CN107746499A (en) | A kind of biaxial tension ventilated membrane and preparation method thereof | |
| CN102336940A (en) | Composition of air-permeable film with low permeation volume and preparation method thereof | |
| CN104448514B (en) | Permeable resin and preparation method thereof with highly-breathable | |
| CN101747548A (en) | Compound for preparation of high-strength polyolefin permeable membrane and preparation method thereof | |
| CN112029173B (en) | Polyethylene breathable film and preparation method thereof | |
| CN102060564B (en) | Light-weight environmental-friendly stone paper and preparation method thereof | |
| CN108623875A (en) | A kind of High-strength air-permeable film composite material and preparation method | |
| CN109912878B (en) | Raw material composition for preparing film-blowing breathable film, film-blowing breathable film and preparation of film-blowing breathable film | |
| CN108715656A (en) | A kind of PE/CaCO3Ventilative film master batch and preparation method thereof | |
| CN111978644B (en) | Polypropylene breathable film and preparation method thereof | |
| CN112778600A (en) | Special material for polyolefin breathable film and preparation method and application thereof | |
| CN106633305A (en) | High permeability rate composite gas-permeable membrane and preparation method thereof | |
| CN107236167A (en) | A kind of preparation method of high-performance polyethylene ventilated membrane | |
| CN106750992A (en) | A kind of low gloss, low-odor polypropylene ene compositions and preparation method thereof | |
| CN104845410A (en) | Preparation and application of plastic modifier | |
| CN1552757A (en) | Microporous membrane, preparing method and use | |
| CN107513197B (en) | Waterproof breathable cast film composite material and preparation method thereof | |
| CN105086095A (en) | Polyethylene composition and preparation method thereof, and gas permeable film prepared from polyethylene composition | |
| CN110684279A (en) | Pearlescent master batch for biaxially oriented film and preparation method and application thereof | |
| CN107501923A (en) | A kind of solvent resistant expanded material and its forming method | |
| CN110712350A (en) | Breathable film with moisture permeability, air permeability and high hydrostatic pressure and preparation method thereof | |
| CN111890767A (en) | Ultrathin polyethylene microporous breathable film and preparation method thereof | |
| CN102922839A (en) | High-performance EVA multifunctional composite shed plastic film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |