CN104558751B - A kind of composition and its method for preparing ultra-thin breathable film - Google Patents

A kind of composition and its method for preparing ultra-thin breathable film Download PDF

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CN104558751B
CN104558751B CN201310512388.9A CN201310512388A CN104558751B CN 104558751 B CN104558751 B CN 104558751B CN 201310512388 A CN201310512388 A CN 201310512388A CN 104558751 B CN104558751 B CN 104558751B
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ultra
inorganic filler
polyethylene
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CN104558751A (en
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权慧
张师军
李�杰
初立秋
高达利
吕芸
刘建叶
徐萌
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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Sinopec Beijing Research Institute of Chemical Industry
China Petroleum and Chemical Corp
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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
    • 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)

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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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention provides a kind of composition and its method for preparing ultra-thin breathable film.The ventilative film composition contains polyethylene blend, inorganic filler, dispersant, antioxidant and processing aid；Polyethylene blend includes medium density polyethylene and LLDPE, can also contain low density polyethylene (LDPE)；Inorganic filler is micron order or nanometer grade calcium carbonate；Dispersant is ultra-fine fully vulcanized powder rubber.Said composition has preferable processability and mechanical property, while curtain coating and rate of extension is improve, grammes per square metre can further be reduced and carry out reduces cost, and ultra-fine fully vulcanized powder rubber can microwaveassisted inorganic filler it is dispersed in resin, it is ensured that the uniformity of ventilated membrane.

Description

A kind of composition and its method for preparing ultra-thin breathable film
Technical field
The present invention relates to processing modified plastics field, and in particular to a kind of high working property that possesses for ultra-thin breathable film Polyethylene composition, and ultra-thin breathable film preparation method.
Background technology
Ventilated membrane is also referred to as " waterproof and breathable microporous barrier ", the characteristics of with permeable watertight, gas can be allowed to pass through, while again The liquid as water can be intercepted；It not only breathes freely but also soft as fabric, and can isolate moisture content as polybag, because This is referred to as " film that can be breathed ", is widely used in such as baby paper diaper and women sanitary articles amenities, and medical treatment, The fields such as packaging for foodstuff, agricultural, weaving, building, are the new materials for developing rapidly in the world.
Ventilated membrane is succeeded in developing, and greatly developed in South Korea earliest by Japan, and product is largely exported to all over the world, Wherein China is maximum product demand ground.The key technology of current ventilated membrane production --- ventilative film resin, rests in minority In Ji Jia overseas enterprises hand.
Ventilated membrane is to utilize thermoplastic, polymeric materials for raw material, by filling inorganic mineral filler, such as nano-calcium carbonate Calcium etc., preparing turns into ventilated membrane master batch, then after curtain coating or blown film are made film, softening temperature and melting in polymer It is prepared from through uniaxial or biaxial stretching technique between temperature.Under stretching action, the sky of certain size is formed around inorganic particulate Gap, as the Waterproof Breathable microporous barrier with intercommunication network shape structure.Ventilated membrane can allow the gases such as vapor, air to lead to Cross, but do not allow liquid to pass through.
The most frequently used thermoplastic polymer for preparing ventilated membrane is polyolefine material, because addition high amount of inorganic filler can be right Fast filming and stretching cause difficulty, therefore ventilated membrane is a series of to raw material, filler, process for treating surface, curtain coating, stretching etc. Link has requirement higher；And continuous improvement, market competition with product quality is growing more intense, and people's environmental protection The enhancing of consciousness, in the market proposes light-weighted requirement to ventilated membrane；Lightweight can reduce product cost, improve human body Comfort, but requirement higher is proposed to the various aspects of performance of film resin of breathing freely.
Patent WO-A-01/79343 discloses a kind of micropore that filter is passed through with stronger impact strength and water vapour higher Thermoplastic film, by 40~60% calcium carbonate, 30~40% LLDPE (LLDPE) and 1~10% it is low close Progressively stretching is made after degree polyethylene (LDPE) blending.
Chinese patent 03812642.7 discloses a kind of with water vapour permeability higher, good mechanical properties and processability The ventilated membrane of energy, using bimodal LLDPE as matrix resin, is filmed after adding a certain amount of ion filler blending.It is bimodal LLDPE can Balanced films mechanical strength and processing characteristics such that it is able to a certain extent reduce ventilated membrane grammes per square metre or thickness Degree, but due to the presence of a part of low molecular weight polyethylene in system, the mechanical strength of ventilated membrane will be affected.
Chinese patent 200810220057.7 disclose a kind of compound for preparing high-strength polyolefin permeable membrane and Its method, component includes：Vistanex, micron order and nano sized inorganic fillers, antioxidant, processing aid, coupling agent.Wherein Nanometer inorganic filler can improve the mechanical performance of polyolefin permeable membrane, reduce the thickness of ventilated membrane, and can be by adjustment Process conditions prepare the ventilated membrane of high intensity highly-breathable；But due to nanometer inorganic filler and the compatibility of vistanex It is poor, the ventilative inhomogeneities of material can be caused and the use of ventilated membrane is influenceed.
Chinese patent 200810110060.3 discloses a kind of composition of melt-processable, comprising particle fillers, LDPE, LLDPE, dispersant and fluoropolymer.Surface is carried out to filler modified, while its high degree of dispersion is ensured, Metal defects is effectively reduced in process, it is to avoid in extrusion, dispersant occurs to carbonize and gather at high temperature At die head aperture, the unstable of extrusion, product is caused the phenomenon such as uneven occur.But operation is more complicated, processing cost is higher.
The content of the invention
In order to overcome the shortcomings of that prior art is present, the invention provides a kind of for high working property, ultra-thin breathable film Composition, and ultra-thin breathable film preparation method；While the permeability of ventilated membrane is ensured, improve its mechanical property, Thinner ventilated membrane is obtained, and with good processing characteristics.
What a kind of composition for preparing ultra-thin breathable film of the invention was realized in：
A kind of composition for preparing ultra-thin breathable film, contains in the composition：It is polyethylene blend, inorganic filler, anti- Oxygen agent and processing aid：Counted as 100 parts with the polyethylene blend and the gross weight of the inorganic filler, the polyethylene is total to The weight of mixed thing is 40~60 parts, and the weight of the inorganic filler is 40~60 parts, and the weight of the antioxidant is 0.5~3 part, The weight of the processing aid is 0.2~1.0 part；
Contain the medium density polyethylene (MDPE) and LLDPE of distribution wide in the polyethylene blend (LLDPE)；
The medium density polyethylene of the distribution wide, its density is 0.935g/cm3~0.945g/cm3, melt flow rate (MFR) (MFR) for 0.1g/10min~8g/10min (190 DEG C, 2.16kg), molecular weight distribution be 8~20；With the polyethylene blend The gross weight of thing is 100 parts of meters, and the weight of the medium density polyethylene of the distribution wide is 30~70 parts；
The LLDPE, its comonomer is butylene, hexene or octene, and catalyst is Ziegler- Natta catalyst or metallocene catalyst；Its density is 0.890g/cm3~0.925g/cm3, melt flow rate (MFR) (MFR) be 1g/10min~10g/10min (2.16kg, 190 DEG C)；Counted with the gross weight of the polyethylene blend as 100 parts, the line Property low density polyethylene (LDPE) weight be 70~30 parts；
The inorganic filler is selected from：One or more in calcium carbonate, barium sulfate, talcum powder and silica, its particle diameter It is 0.1 μm~50 μm.
In the specific implementation, the medium density polyethylene of the distribution wide, its melt flow rate (MFR) (MFR) be 2g/10min~ 5g/10min (190 DEG C, 2.16kg), molecular weight distribution are 8~12；Counted with the gross weight of the polyethylene blend as 100 parts, The weight of the medium density polyethylene of the distribution wide is 45~55 parts；The LLDPE, its melt flow rate (MFR) (MFR) it is 2g/10min~5g/10min (2.16kg, 190 DEG C)；Counted with the gross weight of the polyethylene blend as 100 parts, The weight of the LLDPE is 45~55 parts.
In the specific implementation, low density polyethylene (LDPE) (LDPE) is also contained in the polyethylene blend；The low-density is gathered Ethene, its melt flow rate (MFR) (MFR) is 2g/cm3~20g/cm3(190 DEG C, 2.16kg), preferably 4g/cm3~7g/cm3；With The gross weight of the polyethylene blend is 100 parts of meters, and the weight of the low density polyethylene (LDPE) is 1~20 part, the distribution wide The weight of medium density polyethylene be 40~55 parts, the weight of the LLDPE is 40~55 parts.
In the specific implementation, the inorganic filler is calcium carbonate, and its particle diameter is 0.1 μm~3 μm；With the polyethylene blend Thing and the gross weight of the inorganic filler are 100 parts of meters, and the weight of the inorganic filler is 45~55 parts, the polyethylene blend The weight of thing is 45~55 parts；The inorganic filler carries out surface and is modified using silane coupler or stearic acid；The antioxidant It is selected from：Tetrapentaerythritol ester, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters (antioxidant 1010), Three (2,4- di-t-butyls) phenyl-phosphites (irgasfos 168), propionic acid octadecyl and alkylation polyphenol in one or more； The preferred antioxidant is antioxidant 1010 and irgasfos 168, and antioxidant 1010 is 2 with the amount ratio of irgasfos 168:1~ 1:2 (weight).The processing aid is white oil or Tissuemat E.
In the specific implementation, also contain dispersant in the composition, be patent US 6423760 and CN00816450 etc. The patented product of the Sinopec Beijing Chemical Research Institute of introduction, with the polyethylene blend and the gross weight of the inorganic filler It is 100 parts of meters to measure, and the weight of the dispersant is 0.5~3.0 part；
The dispersant is ultra-fine fully vulcanized powder rubber, is selected from：Full vulcanization butadiene-styrene rubber, full vulcanization Carboxy rubber Glue, full vulcanized acrylate rubber, full full-sulfurized nitrile rubber, vulcanization XNBR, full sulphurated siliastic and full vulcanization One or more in butadiene-styrene-vinyl pyridine rubber, the preferred dispersant is for full vulcanization butadiene-styrene rubber or/and vulcanizes Carboxy entirely Rubber；The gel content of the ultra-fine fully vulcanized powder rubber is 50~2000nm more than 60wt%, particle diameter, preferred particle diameter is 100~1000nm, preferred particle diameter are 150~500nm.
Another subject matter of the invention：What a kind of preparation method of ultra-thin breathable film was realized in：
A kind of method for preparing ultra-thin breathable film using described composition, the method is comprised the following steps：
(1) by the polyethylene blend, the inorganic filler, the antioxidant and the processing aid, or by institute Polyethylene blend, the inorganic filler, the antioxidant, the processing aid and the dispersant are stated, through high speed mixer It is well mixed；
(2) well mixed material is added into double screw extruder, extrusion, pelletizing are simultaneously dried, and obtain the super of high working property Thin ventilative film composition；
(3) the ultra-thin breathable film composition of the high working property is cast into film, is then stretched along longitudinal direction, stretched Than being 1.5~2.5 for 1.5~5, preferred draw ratio, ultra-thin breathable film is obtained.
The high working property of present invention offer, ultra-thin breathable film composition have advantages below：The matrix resin of selection is width The blend of distribution medium density polyethylene and LLDPE, the polyethylene of distribution wide has mechanical property higher simultaneously Preferable processing characteristics can be provided with preferably processability, low molecular weight part, high molecular weight moieties can provide preferable power Performance is learned, therefore, it is possible to obtain preferable processability in the production process of ventilated membrane, curtain coating and draw speed is improved, it is possible to Further reduce grammes per square metre and carry out reduces cost.Additionally, ultra-fine fully vulcanized powder rubber can be as dispersant microwaveassisted inorganic filler in tree It is dispersed in fat, it is ensured that the uniformity of ventilated membrane product.
Specific embodiment
Technical scheme is described in further detail with reference to embodiment, protection scope of the present invention is not limited to following Specific embodiment.
Embodiment 1
By width distribution MDPE, (density is 0.937g/cm3, MFR 15) and LLDPE be 4.5g/10min, molecular weight distribution for (MFR is 2.0g/10min), calcium carbonate (0.1 μm~3 μm of particle diameter, surface is through coupling agent treatment), antioxidant and processing aid enter Row blending, wherein what antioxidant was selected is the composition (mass ratio 1 of antioxidant 1010 and irgasfos 168:1), processing aid choosing It is white oil.The parts by weight of each component are as shown in table 1.
Double screw extruder is added after each component is well mixed in homogenizer, extrusion temperature is 230 DEG C, is squeezed Go out, pelletizing, obtain high working property, the composition of ultra-thin breathable film after drying, be cast by casting machine and be after being longitudinally stretched 1.5 times of initial length, obtain ventilated membrane product, and the performance of gained film is as shown in table 2.
Embodiment 2
From the LLDPE in metallocene LLDPE (MFR is 3.0g/10min) alternate embodiment 1, other blend components and reality Apply that example 1 is identical, the parts by weight of each component are as shown in table 1；Film-forming method is same as Example 1, the performance such as table 2 of gained film It is shown.
Result shows that the LLDPE for substituting Ziegler-Natta catalysis using metallocene LLDPE can be improved further The mechanical property of air film, so as to further reduce grammes per square metre.
Embodiment 3
Blend components are same as Example 1, and the parts by weight of each component are as shown in table 1；By each component in homogenizer It is interior it is well mixed after add double screw extruder, extrusion temperature is 230 DEG C, high working property is obtained after extrusion, pelletizing, drying, is surpassed The composition of thin ventilated membrane, is cast by casting machine and is 2.0 times of initial length after being longitudinally stretched, and obtains ventilated membrane product Product, the performance of gained film is as shown in table 2.
Embodiment 4
Also contain LDPE (MFR is 7.0g/10min) in blend components, other blend components are same as Example 1, respectively The parts by weight of component are as shown in table 1；Film-forming method is same as Example 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 butadiene-styrene rubber (for patent US 6423760 and CN00816450 in blend components Deng the patented product of the Sinopec Beijing Chemical Research Institute of introduction), other blend components are same as Example 1, each component Parts by weight are as shown in table 1；Film-forming method is same as Example 1, and the performance of gained film is as shown in table 2.
The form of finely divided powder, mehtod butadiene-styrene rubber obtains rubber latex by spray drying process vulcanization, product grade It is VP101, Beijing Chemical Research Institute's production, its gel content is not more than 15 more than 60wt%, swelling index.Form of finely divided powder, mehtod fourth Benzene rubber is nanoscale, can flow freely and without interleaving agent, therefore with preferable dispersiveness, be added to filling high In ventilated membrane, can more preferably isolate inorganic filler, so that more preferable dispersion effect is obtained, while also having certain lubrication to make With, the friction between melt and screw rod can be mitigated in process, improve the stability of processing and the efficiency of production.
Embodiment 6
Also containing LDPE, (trade mark 1C7A, density is g/cm in blend components3, MFR is 7.0g/10min) and it is ultra-fine complete Sulfide powder butadiene-styrene rubber (is the Sinopec Beijing Chemical Research Institute of introduction such as patent US 6423760 and CN00816450 Patented product), other blend components are same as Example 1, and the parts by weight of each component are as shown in table 1；Film-forming method and implementation Example 1 is identical, and the performance of gained film is as shown in table 2.
Table 1
Embodiment 1 2 3 4 5 6
Width distribution MDPE 25 25 25 20 26 18
LLDPE 25 25 25 20 29 22
LDPE 0 0 0 10 0 5
Inorganic filler 50 50 50 50 45 55
Dispersant 0 0 0 0 1 1
Antioxidant 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
Draw 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
23 18 17 20 24 20
2800 3850 4000 3100 2500 3550

Claims (10)

1. a kind of composition for preparing ultra-thin breathable film, contains in the composition：Polyethylene blend, inorganic filler, antioxygen Agent and processing aid：Counted as 100 parts with the polyethylene blend and the gross weight of the inorganic filler, the polyethylene blend The weight of thing is 40~60 parts, and the weight of the inorganic filler is 40~60 parts, and the weight of the antioxidant is 0.5~3 part, institute The weight for stating processing aid is 0.2~1.0 part；
Contain the medium density polyethylene and LLDPE of distribution wide in the polyethylene blend；
The medium density polyethylene of the distribution wide, its density is 0.935g/cm3~0.945g/cm3, in 190 DEG C, 2.16kg load Under melt flow rate (MFR) be 0.1g/10min~8g/10min, molecular weight distribution be 8~20；With the polyethylene blend Gross weight is 100 parts of meters, and the weight of the medium density polyethylene of the distribution wide is 30~70 parts；
The LLDPE, its comonomer is butylene, hexene or octene, and catalyst is metallocene catalyst；Its Density is 0.890g/cm3~0.925g/cm3, melt flow rate (MFR) under 190 DEG C, 2.16kg load for 1g/10min~ 10g/10min；Counted with the gross weight of the polyethylene blend as 100 parts, the weight of the LLDPE is 30 ~70 parts；
The inorganic filler is selected from：One or more in calcium carbonate, barium sulfate, talcum powder and silica, its particle diameter is 0.1 μm~50 μm.
2. composition according to claim 1, it is characterised in that：
The medium density polyethylene of the distribution wide, its melt flow rate (MFR) under 190 DEG C, 2.16kg load be 2g/10min~ 5g/10min, molecular weight distribution is 8~12；Counted with the gross weight of the polyethylene blend as 100 parts, in the distribution wide The weight of density polyethylene is 45~55 parts；
The LLDPE, its melt flow rate (MFR) under 190 DEG C, 2.16kg load is 2g/10min~5g/ 10min；Counted with the gross weight of the polyethylene blend as 100 parts, the weight of the LLDPE is 45~55 Part.
3. composition according to claim 1, it is characterised in that：
Also contain low density polyethylene (LDPE) in the polyethylene blend；The low density polyethylene (LDPE), it is carried in 190 DEG C, 2.16kg Melt flow rate (MFR) under lotus is 2g/cm3~20g/cm3；
Counted with the gross weight of the polyethylene blend as 100 parts, the weight of the low density polyethylene (LDPE) is 1~20 part, described The weight of the medium density polyethylene of distribution wide is 40~55 parts, and the weight of the LLDPE is 40~55 parts.
4. composition according to claim 3, it is characterised in that：
The low density polyethylene (LDPE), its melt flow rate (MFR) under 190 DEG C, 2.16kg load is 4g/cm3~7g/cm3。
5. composition according to claim 1, it is characterised in that：
The inorganic filler carries out surface and is modified using silane coupler or stearic acid；With the polyethylene blend and the nothing The gross weight of machine filler is 100 parts of meters, and the weight of the inorganic filler is 45~55 parts, and the weight of the polyethylene blend is 45~55 parts；
The antioxidant is selected from：Four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters, three (2,4- bis- uncles Butyl) phenyl-phosphite, propionic acid octadecyl and alkylation polyphenol in one or more.
6. composition according to claim 5, it is characterised in that：
The antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three (2,4- bis- tertiary fourths Base) phenyl-phosphite, four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters and three (2,4- di-t-butyls) The weight ratio of phenyl-phosphite is 2:1~1:2；
The inorganic filler is calcium carbonate, and its particle diameter is 0.1 μm~3 μm；
The processing aid is white oil or Tissuemat E.
7. composition according to claim 1, it is characterised in that：
Also contain dispersant in the composition, be 100 parts with the polyethylene blend and the gross weight of the inorganic filler Meter, the weight of the dispersant is 0.5~3.0 part；
The dispersant is ultra-fine fully vulcanized powder rubber, is selected from：It is full vulcanization butadiene-styrene rubber, full vulcanization carboxylic styrene-butadiene rubber, complete Vulcanized acrylate rubber, full full-sulfurized nitrile rubber, vulcanization XNBR, full sulphurated siliastic and full vulcanization butylbenzene pyrrole One or more in rubber；The gel content of the ultra-fine fully vulcanized powder rubber more than 60wt%, particle diameter be 50~ 2000nm。
8. composition according to claim 7, it is characterised in that：
The ultra-fine fully vulcanized powder rubber is for full vulcanization butadiene-styrene rubber or/and vulcanizes carboxylic styrene-butadiene rubber entirely；It is described ultra-fine complete The particle diameter of sulfide powder rubber is 150~500nm.
9. the method that a kind of described composition of one of use claim 1~8 prepares ultra-thin breathable film, the method includes following Step：
1) by the polyethylene blend, the inorganic filler, the antioxidant and the processing aid, or by the poly- second Alkene blend, the inorganic filler, the antioxidant, the processing aid and the dispersant, it is equal through high speed mixer mixing It is even；
2) well mixed material is added into double screw extruder, extrusion, pelletizing are simultaneously dried, and obtain the ultra-thin breathable of high working property Film composition；
3) the ultra-thin breathable film composition of the high working property is cast into film, is then stretched along longitudinal direction, draw ratio is 1.5~5, obtain ultra-thin breathable film.
10. the method for preparing ultra-thin breathable film according to claim 9, it is characterised in that：
The draw ratio is 1.5~2.5.
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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
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
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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
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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)

* Cited by examiner, † Cited by third party
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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

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