CN108976574A - A kind of breathable polyethylene film - Google Patents
A kind of breathable polyethylene film Download PDFInfo
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- CN108976574A CN108976574A CN201810516049.0A CN201810516049A CN108976574A CN 108976574 A CN108976574 A CN 108976574A CN 201810516049 A CN201810516049 A CN 201810516049A CN 108976574 A CN108976574 A CN 108976574A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2007/00—Flat articles, e.g. films or sheets
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- 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
- C08J2323/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/346—Clay
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
Abstract
The invention discloses a kind of breathable polyethylene films, belong to technical field of polymer materials.The breathable polyethylene film that the present invention develops includes linear low density polyethylene, modified meerschaum, plasticizer, antioxidant and stabilizer, during the preparation process, first by linear low density polyethylene, modified meerschaum, plasticizer, antioxidant and stabilizer mixing granulation, masterbatch is obtained；It after masterbatch drying, is successively cast, stretches stable through squeezing out, up to breathable polyethylene film, wherein, modified meerschaum then is acidified with hydrochloric acid by after sepiolite and water mixing hydro-thermal reaction, then filtering, washing, dry and roasting, then cooperate silane coupler modified, modified meerschaum is obtained, and low density polyethylene (LDPE) then uses melt flow rate (MFR) for the linear low density polyethylene of 3.2~4.0g/10min.Gained breathable polyethylene film of the invention has good mobility in process, while having good permeability.
Description
Technical field
The invention discloses a kind of breathable polyethylene films, belong to technical field of polymer materials.
Background technique
Polyethylene is a kind of aggregated thermoplastic resin obtained of ethylene.Polyethylene is odorless, nontoxic, and feel ceraceous has
Excellent resistance to low temperature, chemical stability is good, is resistant to the erosion of most of soda acids (intolerant to the acid with oxidizing property).Room temperature
Common solvent is not dissolved in down, and water imbibition is small, and electrical insulating property is excellent.
Polyethylene breathable film is to allow water vapor diffusion to penetrate but obstruct a kind of microporous barrier of liquid water leakage, main at present
For manufacturing the products such as hygiene protective furnishings and gas permeability waterproof cloth, in health care, personal nursing, building, agricultural and sideline product
The fields such as packaging are widely used.The production technology of polyethylene breathable film comparative maturity, technical process is first will be with carbon
Special breathable membrane material is made in Inorganic Fillers Filled polyethylene based on sour calcium；Then by PP Pipe Compound by being cast or being blow molded mode
Film is made；Apply uniaxial or biaxial stretching effect finally by film, polymeric matrix and filler particles surface occurs
It separates and develops interconnected microchannel between filler particles, to form microporous breathable film.In above-mentioned technical process
In, the preparation of special breathable membrane material is very crucial, because the performance of PP Pipe Compound determines that the speed of production of ventilated membrane and technique are steady
It is qualitative, also the pore structure of ventilated membrane, permeability and mechanical property are had a major impact.
At present researcher from base polyethylene resin structure, filler particles form and surface treatment, filling hybrid technology,
It stretches hole creating technology etc. and correlative study has been carried out to PP Pipe Compound preparation process and film drawing process.There is prior art use
The calcium carbonate of dispersion resin and different-grain diameter size and distribution with different mobility, by adjusting special breathable membrane material
Composition, studies its influence to the processing fluidity and micro-porous permeable film properties of PP Pipe Compound.Polyethylene film traditional at present is also
There is a problem of that permeability is bad, therefore also needs to study it.
Summary of the invention
The present invention solves the technical problem of: for the bad problem of conventional polyethylene film permeability, provide
A kind of breathable polyethylene film.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the invention is that:
A kind of breathable polyethylene film, the raw material including following parts by weight:
100~150 parts of linear low density polyethylene
40~60 parts of modified meerschaum
2~4 parts of plasticizer
2~4 parts of antioxidant
3~5 parts of stabilizer
The preparation process of the breathable polyethylene film are as follows:
(1) each component is weighed by raw material composition；
(2) linear low density polyethylene, modified meerschaum, plasticizer, antioxidant and stabilizer mixing granulation are first obtained into masterbatch；
(3) it by after masterbatch drying, is successively cast, stretches stable to get breathable polyethylene film through squeezing out.
The linear low density polyethylene is the linear low density polyethylene that melt flow rate (MFR) is 3.2~4.0g/10min
Alkene.
The modifying process of the modified meerschaum are as follows: by sepiolite and water be in mass ratio 1:1~1:2 be added water heating kettle
In, it after heating stirred under pressure reacts 45~60min, filters, obtains filter cake, then the hydrochloric acid of filter cake and mass fraction 8~15% is pressed into matter
After amount ratio is 1:8~1:15 mixing, thermostatic ultrasonic reacts 2~4h, filters, and washs, and drying and roasting obtain pretreatment sepiolite,
Again according to parts by weight, 60~80 parts of pretreatment sepiolites, 80~100 parts of water, 20~30 parts of silane coupling agent KH- are successively taken
560,60~80 parts of dehydrated alcohols first mix silane coupling agent KH-560 and dehydrated alcohol, then with pretreatment sepiolite and water
Mixing, and pH to 4.0~4.2 is adjusted, after constant temperature is stirred to react 2~4h, filtering washs and dry, obtains modified meerschaum.
The plasticizer is in dioctyl terephthalate, acetyl tri-n-butyl citrate or dioctyl phthalate
Any one.
The antioxidant is antioxidant 1010, any one in irgasfos 168 or antioxidant BHT.
The stabilizer is any in calcium stearate, zinc stearate, magnesium stearate, zinc ricinate or epoxidized soybean oil
It is a kind of.
The beneficial effects of the present invention are:
It is prepared in breathable polyethylene membrane process using calcium carbonate as filler due to conventional, by filler particles and polymeric matrix
It separates, and forms interconnected microchannel, and the addition of calcium carbonate, it is easy to cause matrix resin viscosity to increase, is adding
Rheological characteristic is bad during work, and it is evenly dispersed in the base that filler is difficult to, and is unfavorable for microchannel under stretching action
It is formed, and the application uses modified meerschaum as raw material, firstly, sepiolite is chain layer silicate mineral, at modified
After reason, interlayer structure is effectively widened, and interlaminar action power weakens, and under silane coupling agent effect, during preparing masterbatch
Can in masterbatch fine dispersion, and silicone hydroxyl and sepiolite surface silanol group are dehydrated each other in silane coupling agent, are formed
Silicon oxygen bond, during drawing high, the organic segment of silane coupling agent and polymer are mutually wound, in the case where drawing high power effect, sepiolite
The interlayer structure widened is stripped, to make to form microchannel between interlayer and interlayer, and the sepiolite of monolithic layer still with it is poly-
Ethylene matrix good combination, while so that product mechanical property is effectively kept, permeability is also able to outstanding performance；Again
Person, sepiolite inherently have good rheological characteristic and highly viscous suspension stability, after improving its hydrophilic surface by coupling agent,
The suspension system of stable dispersion can be formed in resin system, and plays good rheological property in process, make filler
Can in process, the well stable dispersion in resin system is uniformly distributed in resin to be conducive to microcellular structure,
Promote the permeability of product further.
Specific embodiment
Sepiolite and water are added in water heating kettle for 1:1~1:2 in mass ratio, then water heating kettle is closed, then in temperature
It is 150~180 DEG C, pressure is 1.6~2.0MPa, and under the conditions of speed of agitator is 300~500r/min, heat-insulation pressure keeping is stirred to react
After 45~60min, water heating kettle is opened, and material in water heating kettle is filtered, obtain filter cake, and is 8 by gained filter cake and mass fraction
~10% hydrochloric acid be in mass ratio 1:8~1:15 be added three-necked flask in, in temperature be 55~65 DEG C, supersonic frequency be 45~
Under the conditions of 50kHz, after thermostatic ultrasonic reacts 2~4h, filtering obtains No. 1 filter residue, and No. 1 filter residue is washed with deionized 4~6 times,
No. 1 filter residue after washing is transferred in baking oven again, is dried under the conditions of being 105~110 DEG C in temperature to constant weight, then will be after drying
No. 1 filter residue moves into tube furnace, under the conditions of temperature is 200~220 DEG C, after 2~4h of heat preservation roasting, cools to room temperature with the furnace,
Discharging, obtains pretreatment sepiolite, then according to parts by weight, successively takes 60~80 parts of pretreatment sepiolites, 80~100 parts of water, and 20
~30 parts of silane coupling agent KH-560,60~80 parts of dehydrated alcohols first pour into pretreatment sepiolite and water in No. 1 beaker, use
Glass bar is dispersed with stirring 20~30min, must pre-process sepiolite dispersion liquid, then silane coupling agent KH-560 and dehydrated alcohol are fallen
Enter in No. 2 beakers, be stirred 10~15min with glass bar, obtain coupling agent dilution, under stirring, by coupling agent
Dilution is added in No. 1 beaker with the rate of 8~10mL/min, after being added to coupling agent dilution, adjusts No. 1 beaker
Middle material pH to 4.0~4.2, then beaker immigration digital display is tested the speed in constant temperature blender with magnetic force, in temperature be 55~60 DEG C, revolving speed
Under the conditions of 400~600r/min, constant temperature is stirred to react 2~4h, and filtering obtains No. 2 filter residues, and by No. 2 filter residues of gained spend from
Sub- water washing 3~5 times, then No. 2 filter residues after washing are moved into baking oven, it dries under the conditions of being 105~110 DEG C in temperature to perseverance
Weight, obtains modified meerschaum；According to parts by weight, 100~150 parts of linear low density polyethylene, 40~60 parts of modified seas are successively taken
Afrodite, 2~4 parts of plasticizer, 2~4 parts of antioxidant, 3~5 parts of stabilizers, mixing are poured into high-speed mixer, and mixing 10~
After 20min, material in high-speed mixer is transferred to double screw extruder, extruding pelletization obtains masterbatch；By masterbatch in 80 DEG C of conditions
Under, dry 4~6h obtains dry masterbatch, then gained drying master batch is added casting machine hopper, and control curtain coating mouth temperature is 210~
220 DEG C, curtain coating roll temperature is 90~92 DEG C, after casting film-forming, stretch stable, control cross directional stretch multiplying power is 1300~
1350 ‰, longitudinal stretching multiplying power is 1250~1,300 ‰, then is cut, and is wound to get breathable polyethylene film.It is described linear low close
Degree polyethylene is the linear low density polyethylene that melt flow rate (MFR) is 3.2~4.0g/10min.The plasticizer is to benzene two
Any one in formic acid dioctyl ester, acetyl tri-n-butyl citrate or dioctyl phthalate.The antioxidant is antioxygen
Any one in agent 1010, irgasfos 168 or antioxidant BHT.The stabilizer be calcium stearate, zinc stearate, magnesium stearate,
Any one in zinc ricinate or epoxidized soybean oil.
Example 1
Sepiolite and water are added in water heating kettle for 1:2 in mass ratio, then water heating kettle is closed, are then 180 DEG C in temperature, press
Power is 2.0MPa, under the conditions of speed of agitator is 500r/min, after heat-insulation pressure keeping is stirred to react 60min, opens water heating kettle, and by water
Material filters in hot kettle, obtains filter cake, and is in mass ratio that 1:15 is added three mouthfuls by the hydrochloric acid that gained filter cake and mass fraction are 10%
It is 65 DEG C in temperature in flask, under the conditions of supersonic frequency is 50kHz, after thermostatic ultrasonic reacts 4h, filtering obtains No. 1 filter residue, and
No. 1 filter residue is washed with deionized 6 times, then No. 1 filter residue after washing is transferred in baking oven, is done under the conditions of being 110 DEG C in temperature
It is dry to be moved into tube furnace to constant weight, then by No. 1 filter residue after drying, under the conditions of temperature is 220 DEG C, after heat preservation roasting 4h, with
Furnace is cooled to room temperature, and discharging obtains pretreatment sepiolite, then according to parts by weight, successively takes 80 parts of pretreatment sepiolites, and 100 parts
Pretreatment sepiolite and water are first poured into No. 1 beaker, use glass by water, 30 parts of silane coupling agent KH-560,80 parts of dehydrated alcohols
Stick is dispersed with stirring 30min, must pre-process sepiolite dispersion liquid, then silane coupling agent KH-560 and dehydrated alcohol are poured into No. 2 burnings
Cup in, be stirred 15min with glass bar, obtain coupling agent dilution, under stirring, by coupling agent dilution with
The rate of 10mL/min is added in No. 1 beaker, after being added to coupling agent dilution, adjust in No. 1 beaker material pH to
4.2, then beaker immigration digital display is tested the speed in constant temperature blender with magnetic force, in temperature be 60 DEG C, it is permanent under the conditions of revolving speed is 600r/min
Temperature is stirred to react 4h, and filtering obtains No. 2 filter residues, and No. 2 filter residues of gained are washed with deionized 5 times, then by No. 2 after washing
Filter residue moves into baking oven, dries under the conditions of being 110 DEG C in temperature to constant weight, obtains modified meerschaum；According to parts by weight, it successively takes
Height is poured into 150 parts of linear low density polyethylene, 60 parts of modified meerschaums, 4 parts of plasticizer, 4 parts of antioxidant, 5 parts of stabilizers, mixing
In fast mixing machine, after mixing 20min, material in high-speed mixer is transferred to double screw extruder, extruding pelletization obtains masterbatch；It will
Masterbatch is under the conditions of 80 DEG C, dry 6h, obtains dry masterbatch, then casting machine hopper, control curtain coating mouth is added in gained drying master batch
Temperature is 220 DEG C, and curtain coating roll temperature is 92 DEG C, after casting film-forming, stretch and stabilizes, and control cross directional stretch multiplying power is
1350 ‰, longitudinal stretching multiplying power is 1,300 ‰, then is cut, and is wound to get breathable polyethylene film.The linear low density polyethylene
Alkene is the linear low density polyethylene that melt flow rate (MFR) is 4.0g/10min.The plasticizer is dioctyl terephthalate.
The antioxidant is antioxidant 1010.The stabilizer is calcium stearate.
Example 2
Lime stone and water are added in water heating kettle for 1:2 in mass ratio, then water heating kettle is closed, are then 180 DEG C in temperature, press
Power is 2.0MPa, under the conditions of speed of agitator is 500r/min, after heat-insulation pressure keeping is stirred to react 60min, opens water heating kettle, and by water
Material filters in hot kettle, obtains filter cake, and is in mass ratio that 1:15 is added three mouthfuls by the hydrochloric acid that gained filter cake and mass fraction are 10%
It is 65 DEG C in temperature in flask, under the conditions of supersonic frequency is 50kHz, after thermostatic ultrasonic reacts 4h, filtering obtains No. 1 filter residue, and
No. 1 filter residue is washed with deionized 6 times, then No. 1 filter residue after washing is transferred in baking oven, is done under the conditions of being 110 DEG C in temperature
It is dry to be moved into tube furnace to constant weight, then by No. 1 filter residue after drying, under the conditions of temperature is 220 DEG C, after heat preservation roasting 4h, with
Furnace is cooled to room temperature, and discharging obtains pretreatment lime stone, then according to parts by weight, successively takes 80 parts of pretreatment lime stones, and 100 parts
Pretreatment lime stone and water are first poured into No. 1 beaker, use glass by water, 30 parts of silane coupling agent KH-560,80 parts of dehydrated alcohols
Stick is dispersed with stirring 30min, must pre-process lime stone dispersion liquid, then silane coupling agent KH-560 and dehydrated alcohol are poured into No. 2 burnings
Cup in, be stirred 15min with glass bar, obtain coupling agent dilution, under stirring, by coupling agent dilution with
The rate of 10mL/min is added in No. 1 beaker, after being added to coupling agent dilution, adjust in No. 1 beaker material pH to
4.2, then beaker immigration digital display is tested the speed in constant temperature blender with magnetic force, in temperature be 60 DEG C, it is permanent under the conditions of revolving speed is 600r/min
Temperature is stirred to react 4h, and filtering obtains No. 2 filter residues, and No. 2 filter residues of gained are washed with deionized 5 times, then by No. 2 after washing
Filter residue moves into baking oven, dries under the conditions of being 110 DEG C in temperature to constant weight, obtains modified lime stone；According to parts by weight, it successively takes
Height is poured into 150 parts of linear low density polyethylene, 60 parts of modified lime stones, 4 parts of plasticizer, 4 parts of antioxidant, 5 parts of stabilizers, mixing
In fast mixing machine, after mixing 20min, material in high-speed mixer is transferred to double screw extruder, extruding pelletization obtains masterbatch；It will
Masterbatch is under the conditions of 80 DEG C, dry 6h, obtains dry masterbatch, then casting machine hopper, control curtain coating mouth is added in gained drying master batch
Temperature is 220 DEG C, and curtain coating roll temperature is 92 DEG C, after casting film-forming, stretch and stabilizes, and control cross directional stretch multiplying power is
1350 ‰, longitudinal stretching multiplying power is 1,300 ‰, then is cut, and is wound to get breathable polyethylene film.The linear low density polyethylene
Alkene is the linear low density polyethylene that melt flow rate (MFR) is 4.0g/10min.The plasticizer is dioctyl terephthalate.
The antioxidant is antioxidant 1010.The stabilizer is calcium stearate.
Example 3
According to parts by weight, 150 parts of linear low density polyethylene are successively taken, 60 parts of sepiolites, 4 parts of plasticizer, 4 parts of antioxidant, 5
Part stabilizer, mixing are poured into high-speed mixer, and after mixing 20min, material in high-speed mixer is transferred to double screw extruder,
Extruding pelletization obtains masterbatch；By masterbatch under the conditions of 80 DEG C, dry 6h obtains dry masterbatch, then gained drying master batch is added and is cast
Machine hopper, control curtain coating mouth temperature is 220 DEG C, and being cast roll temperature is 92 DEG C, after casting film-forming, stretch stable, control cross
It is 1,350 ‰ to stretching ratio, longitudinal stretching multiplying power is 1,300 ‰, then is cut, and is wound to get breathable polyethylene film.The line
Property low density polyethylene (LDPE) is the linear low density polyethylene that melt flow rate (MFR) is 4.0g/10min.The plasticizer is to benzene two
Formic acid dioctyl ester.The antioxidant is antioxidant 1010.The stabilizer is calcium stearate.
Comparative example: the polyethylene film of Shanghai Genie et Environnement production.
1 to 3 gained polyethylene film of example and comparative example product are subjected to performance detection, the specific detection method is as follows:
Use the Gurley value of permeability apparatus measurement film.Gurley value refers to that the air of specific quantity passes through at a particular pressure
Time required for the ventilated membrane of particular area, Gurley value is smaller, and air penetrability is higher.Ventilated membrane sample is fixed on sample stage
On, cylinder is put down, measurement cylinder is read from 0~100 required time, as Gurley value.Measurement pressure is 8.5kPa, test surfaces
Product is 645.2mm2.Specific testing result is as shown in table 1:
Table 1: performance detection table
| Detection content | Example 1 | Example 2 | Example 3 | Comparative example |
| Gurley value | 355 | 435 | 452 | 558 |
By 1 testing result of table it is found that present invention gained breathable polyethylene film has excellent permeability.
Claims (6)
1. a kind of breathable polyethylene film, which is characterized in that the raw material including following parts by weight:
100~150 parts of linear low density polyethylene
40~60 parts of modified meerschaum
2~4 parts of plasticizer
2~4 parts of antioxidant
3~5 parts of stabilizer
The preparation process of the breathable polyethylene film are as follows:
(1) each component is weighed by raw material composition；
(2) linear low density polyethylene, modified meerschaum, plasticizer, antioxidant and stabilizer mixing granulation are first obtained into masterbatch；
(3) it by after masterbatch drying, is successively cast, stretches stable to get breathable polyethylene film through squeezing out.
2. a kind of breathable polyethylene film according to claim 1, which is characterized in that the linear low density polyethylene is molten
Body flow rate is the linear low density polyethylene of 3.2~4.0g/10min.
3. a kind of breathable polyethylene film according to claim 1, which is characterized in that the modifying process of the modified meerschaum
Are as follows: by sepiolite and water be in mass ratio 1:1~1:2 be added water heating kettle in, heating stirred under pressure react 45~60min after, take out
Filter, obtains filter cake, then after by the hydrochloric acid of filter cake and mass fraction 8~15% being in mass ratio 1:8~1:15 mixing, thermostatic ultrasonic is anti-
2~4h is answered, is filtered, washing, dry and roasting obtains pretreatment sepiolite, then according to parts by weight, successively takes 60~80 parts of pre- places
Manage sepiolite, 80~100 parts of water, 20~30 parts of silane coupling agent KH-560,60~80 parts of dehydrated alcohols, first by silane coupling agent
KH-560 and dehydrated alcohol mixing, then mixed with pretreatment sepiolite and water, and adjust pH to 4.0~4.2, constant temperature is stirred to react
After 2~4h, filtering washs and dry, obtains modified meerschaum.
4. a kind of breathable polyethylene film according to claim 1, which is characterized in that the plasticizer is terephthalic acid (TPA) two
Any one in monooctyl ester, acetyl tri-n-butyl citrate or dioctyl phthalate.
5. a kind of breathable polyethylene film according to claim 1, which is characterized in that the antioxidant is antioxidant 1010,
Any one in irgasfos 168 or antioxidant BHT.
6. a kind of breathable polyethylene film according to claim 1, which is characterized in that the stabilizer is calcium stearate, firmly
Any one in resin acid zinc, magnesium stearate, zinc ricinate or epoxidized soybean oil.
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Cited By (7)
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| CN111041586A (en) * | 2019-12-28 | 2020-04-21 | 宜禾股份有限公司 | Preparation process of bulletproof high-strength polyethylene fiber applied to special clothing |
| CN112521676A (en) * | 2020-12-15 | 2021-03-19 | 上大新材料(泰州)研究院有限公司 | Reflective breathable mulching film and preparation method thereof |
| CN112679840A (en) * | 2020-12-28 | 2021-04-20 | 会通新材料股份有限公司 | Flame-retardant PE (polyethylene) breathable film composite material and preparation method thereof |
| CN112961434A (en) * | 2021-02-19 | 2021-06-15 | 厦门竣众升新材料有限公司 | Preparation process of high polymer plastic |
| CN113831624A (en) * | 2021-09-09 | 2021-12-24 | 常州纳美生物科技有限公司 | Modified polyethylene breathable master batch and preparation method thereof |
| CN114163841A (en) * | 2021-11-18 | 2022-03-11 | 横店集团得邦工程塑料有限公司 | Preparation method and application of polyethylene-coated inorganic particle wear-resistant agent |
| CN115838507A (en) * | 2023-02-20 | 2023-03-24 | 天津市中泰创展科技有限公司 | High-strength degradable polyethylene cast film and preparation method thereof |
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| CN111041586A (en) * | 2019-12-28 | 2020-04-21 | 宜禾股份有限公司 | Preparation process of bulletproof high-strength polyethylene fiber applied to special clothing |
| CN112521676A (en) * | 2020-12-15 | 2021-03-19 | 上大新材料(泰州)研究院有限公司 | Reflective breathable mulching film and preparation method thereof |
| CN112679840A (en) * | 2020-12-28 | 2021-04-20 | 会通新材料股份有限公司 | Flame-retardant PE (polyethylene) breathable film composite material and preparation method thereof |
| CN112961434A (en) * | 2021-02-19 | 2021-06-15 | 厦门竣众升新材料有限公司 | Preparation process of high polymer plastic |
| CN113831624A (en) * | 2021-09-09 | 2021-12-24 | 常州纳美生物科技有限公司 | Modified polyethylene breathable master batch and preparation method thereof |
| CN114163841A (en) * | 2021-11-18 | 2022-03-11 | 横店集团得邦工程塑料有限公司 | Preparation method and application of polyethylene-coated inorganic particle wear-resistant agent |
| CN115838507A (en) * | 2023-02-20 | 2023-03-24 | 天津市中泰创展科技有限公司 | High-strength degradable polyethylene cast film and preparation method thereof |
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