CN105504446A - Foaming master batch and thickening type plastic film and corresponding preparation methods - Google Patents
Foaming master batch and thickening type plastic film and corresponding preparation methods Download PDFInfo
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- CN105504446A CN105504446A CN201511033643.7A CN201511033643A CN105504446A CN 105504446 A CN105504446 A CN 105504446A CN 201511033643 A CN201511033643 A CN 201511033643A CN 105504446 A CN105504446 A CN 105504446A
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
Abstract
The invention provides a foaming master batch. The foaming master batch is prepared from, by weight, 30%-60% of low-density polyethylene, 20%-30% of EVA, 10%-20% of foaming agent and 10%-20% of dispersing agent. The invention further provides a method for preparing the foaming master batch, thickening type plastic film taking the foaming master batch as the raw material and a preparation method of the thickening type plastic film. The thickening type plastic film takes polyethylene as the main raw material, by means of three-layer co-extrusion film blowing, the foaming agent is added to an interlayer but not added to inner film and outer film, film blowing is conducted at a certain temperature and speed, foaming is conducted on the interlayer of the film but not conducted on the inner film and the outer film, the thicknesses of all the layers are controlled, and therefore the film is thickened without affecting the cost and the performance of the film. The products can be applied directly and can also be applied on multi-layer composite plastic weaved cloth. The preparation process of the products is simple, the cost performance is high, the market prospect is wide, and positive social meaning is achieved.
Description
Technical field
The present invention relates to a kind of foaming master batch, incrassation type plastics film and corresponding manufacture method.
Background technology
Geomembrane at present for waterproof, antiseepage in the engineerings such as reservoir, river course, road, culvert, dykes and dams, destructor plant mainly has crosslinked polyethylene film and nonwoven layer to combine, because non-woven fabrics is originally in carrying out in acupuncture production process, often there is broken needle phenomenon, in construction process, the broken needle in non-woven fabrics often stabs workmen; And in construction and use procedure, also can puncture geomembrane because of stressed, cause seepage.
Chinese patent application 201510554411.X discloses a kind of manufacture method of EVA foamed thin sheet, comprises the preparation of foaming concentrate, and foaming promotes the extrusion-blown modling foaming of master batch processing and film.Its main raw material is EVA, and it is individual layer foaming.
Chinese patent application 201510474749.4, discloses a kind of preparation method of micro polymer foamed thin sheet, comprises following multiple step: 1) by 200-500 μm of thick polymeric film and interval insulant, even harvest coiled material.2) coiled material is placed in supercutical fluid reactor, controls at higher temperature and pressure, supercutical fluid is permeated in polyester coiled material, swelling, reach capacity.3), after reaching capacity, assisting ultrasonic wave technology, polymeric film inner homogeneous nucleation, supercutical fluid in release reaction still, takes out the coiled material of nucleation.4) under coiled material being placed in thermal source, inner gas nucleus growth, abscess sizing, the obtained fretting map film that aperture is homogeneous, abscess is fine and closely woven.
Utility model 201120406203.2, discloses a kind of PP fretting map reflectance coating.Relate to a kind of PP reflective film with uvioresistant layer, described PP fretting map reflectance coating is sandwich structure, is divided into three layers, and the first layer is upper uvioresistant layer, and the second layer is fretting map layer, and third layer is lower uvioresistant layer.The thickness of reflectance coating is 150 ~ 400 μm.
The drawback of technique scheme is, the increase of film buildup thickness and can affect its cost and performance.
Therefore, how to provide a kind of increase of film buildup thickness not affect the incrassation type plastics film of its cost and property, become the problem that industry needs to solve.
Summary of the invention
An object of the present invention is to provide a kind of foaming master batch and manufacture method thereof.
Another object of the present invention is to provide a kind of incrassation type plastics film and manufacture method thereof.
To achieve these goals, on the one hand, the invention provides a kind of foaming master batch, it comprises:
The Low Density Polyethylene of 30-60% weight part;
20-30% parts of EVA;
The whipping agent of 10-20% weight part, such as Cellmic C 121;
The dispersion agent of 10-20% weight part, such as polyethylene wax or stearic acid.
According to another embodiment of the present invention, EVA is ethylene-vinyl acetate copolymer, and its VA is 10-20%.
According to another embodiment of the present invention, foaming master batch comprises the nucleator of 0-10% weight part further, such as superfine talcum powder.
According to another embodiment of the present invention, foaming master batch comprises the blowing control agents of 0-10% weight part further, such as oxalic acid.
On the other hand, the invention provides a kind of method manufacturing above-mentioned foaming master batch, it comprises the steps:
I, in stirrer, add Low Density Polyethylene 30-60% weight part, EVA20-30% weight part, whipping agent 10-20% weight part successively, dispersion agent 10-20% weight part, nucleator 0 ~ 10% weight part, blowing control agents 0-10% weight part;
II, stirring discharging in 10-20 minute;
III, with single screw extrusion machine or Banbury mixer granulation, it is for subsequent use that processing temperature controls to be no more than 120 DEG C of dischargings.
According to another embodiment of the present invention, the MI selected when adding Low Density Polyethylene is 10-20g/min.
Another aspect, the invention provides a kind of incrassation type plastics film, and this incrassation type plastics film comprises inner layer film, outer membrane, intermediate coat; Intermediate coat is between inner layer film and outer membrane; Containing above-mentioned foaming master batch in the raw material of intermediate coat.
According to another embodiment of the present invention, the raw material of inner layer film comprises: the calcium carbonate of LDPE, 0-10% weight part of 90-100% weight part, the opening agent of 0-3% weight part;
The raw material of outer membrane comprises: the calcium carbonate of LDPE, 0-10% weight part of 90-100% weight part, the opening agent of 0-3% weight part;
The raw material of intermediate coat comprises: the calcium carbonate of LDPE, 0-10% weight part of 90-95% weight part, the described foaming concentrate of 1-10% weight part.
According to another embodiment of the present invention, opening agent is inorganic silicon-dioxide or organic erucamid erucyl amide.
Again on the one hand, the invention provides a kind of method manufacturing above-mentioned incrassation type plastics film, it comprises the steps:
A, preparation inner layer film raw material, outer membrane raw material, intermediate coat raw material;
B, three-layer co-extruded inflation film manufacturing machine is utilized to carry out blown film.
Wherein, processing temperature machine barrel 100-180 DEG C, die head 160-180 DEG C, blown film speed 20-100m/min.
The present invention is by three-layer co-extruded blown film, and just middle layer adds the form that foaming agent foam and inner layer film and outer membrane do not add whipping agent, and realizing film buildup thickness increases and substantially do not affect its cost and performance.
Compared with prior art, the present invention possesses following beneficial effect:
The present invention take polyethylene as main raw material, by three-layer co-extruded blown film, whipping agent is added and inner layer film and outer membrane do not add whipping agent at intermediate coat, blowing under certain temperature, speed, the intermediate coat foaming of film, and inner layer film and outer membrane do not foam, control the thickness of each layer, thus make film buildup thickness increase and substantially not affect its cost and performance.Product both can directly be applied, and can use again in multilayer composite plastic woven cloth.Production process is simple, cost performance is high, wide market, has positive social effect.
Accompanying drawing explanation
Fig. 1 is in embodiment 1, prepares the schema of foaming master batch;
Fig. 2 is in embodiment 1, prepares the schema of incrassation type plastics film.
Embodiment
Embodiment 1
As shown in Figure 1, the present embodiment is prepared foaming master batch and is comprised the steps:
Low Density Polyethylene (MI=10-20g/min) 30-60% weight part, EVA (ethylene-vinyl acetate copolymer is added successively in stirrer, VA=10-20%) 20-30% weight part, whipping agent (Cellmic C 121) 10-20% weight part, dispersion agent (such as polyethylene wax or stearic acid) 10-20% weight part, nucleator (such as superfine talcum powder) 0-10% weight part, blowing control agents (such as oxalic acid) 0-10% weight part.Stir discharging in 10-20 minute, then with single screw extrusion machine or Banbury mixer granulation, it is for subsequent use that processing temperature controls to be no more than 120 DEG C of dischargings.
As shown in Figure 2, the present embodiment is prepared incrassation type plastics film and is comprised the steps:
Use three-layer co-extruded inflation film manufacturing machine.Inner layer film, outer membrane for main raw material, add the opening agent (as inorganic silicon-dioxide or organic erucamid erucyl amide) of the calcium carbonate of 0-5% weight part, 0-3% weight part with LDPE (MI=2-5g/min).Middle layer with LDPE (MI=2-5g/min) for main raw material, the above-mentioned foaming concentrate of the calcium carbonate added, 1-10%.Processing temperature machine barrel 100-180 DEG C, die head 160-180 DEG C, blown film speed 20-100m/min.
Although the present invention discloses as above with preferred embodiment, and is not used to limit scope of the invention process.Any those of ordinary skill in the art, not departing from invention scope of the present invention, when doing a little improvement, namely every equal improvement done according to the present invention, should be scope of the present invention and contained.
Claims (10)
1. a foaming master batch, it comprises:
The Low Density Polyethylene of 30-60% weight part;
20-30% parts of EVA;
The whipping agent of 10-20% weight part;
The dispersion agent of 10-20% weight part.
2. foaming master batch as claimed in claim 1, wherein, described EVA is ethylene-vinyl acetate copolymer, and its VA is 10-20%.
3. foaming master batch as claimed in claim 1, wherein, described foaming master batch comprises the nucleator of 0-10% weight part further.
4. foaming master batch as claimed in claim 1, wherein, described foaming master batch comprises the blowing control agents of 0-10% weight part further.
5. a method for the described foaming master batch of one of manufacturing claims 1-4, it comprises the steps:
I, in stirrer, add Low Density Polyethylene 30-60% weight part, EVA20-30% weight part, whipping agent 10-20% weight part successively, dispersion agent 10-20% weight part, nucleator 0 ~ 10% weight part, blowing control agents 0-10% weight part;
II, stirring discharging in 10-20 minute;
III, with single screw extrusion machine or Banbury mixer granulation, it is for subsequent use that processing temperature controls to be no more than 120 DEG C of dischargings.
6. method as claimed in claim 5, wherein, in step I, the MI selected when adding Low Density Polyethylene is 10-20g/min.
7. an incrassation type plastics film, is characterized in that, described incrassation type plastics film comprises inner layer film, outer membrane, intermediate coat; Described intermediate coat is between described inner layer film and described outer membrane; Containing the foaming master batch that one of claim 1-4 is described in the raw material of described intermediate coat.
8. waterproof and breathable composite braided fabric as claimed in claim 7, wherein,
The raw material of described inner layer film comprises: the calcium carbonate of LDPE, 0-10% weight part of 90-100% weight part, the opening agent of 0-3% weight part;
The raw material of described outer membrane comprises: the calcium carbonate of LDPE, 0-10% weight part of 90-100% weight part, the opening agent of 0-3% weight part;
The raw material of described intermediate coat comprises: the calcium carbonate of LDPE, 0-10% weight part of 90-95% weight part, the described foaming concentrate of 1-10% weight part.
9. waterproof and breathable composite braided fabric as claimed in claim 8, wherein, described opening agent is inorganic silicon-dioxide or organic erucamid erucyl amide.
10. a method for waterproof and breathable composite braided fabric described in manufacturing claims 9, it comprises the steps:
A, preparation inner layer film raw material, outer membrane raw material, intermediate coat raw material;
B, three-layer co-extruded inflation film manufacturing machine is utilized to carry out blown film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033643.7A CN105504446B (en) | 2015-12-31 | 2015-12-31 | Foaming master batch, incrassation type plastic film and corresponding manufacturing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033643.7A CN105504446B (en) | 2015-12-31 | 2015-12-31 | Foaming master batch, incrassation type plastic film and corresponding manufacturing method |
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| CN105504446A true CN105504446A (en) | 2016-04-20 |
| CN105504446B CN105504446B (en) | 2019-03-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750846A (en) * | 2016-11-18 | 2017-05-31 | 潍坊仲铂新材料有限公司 | A kind of low melting point packaging film and its application in packaging bag is prepared |
| CN109823693A (en) * | 2018-12-26 | 2019-05-31 | 江阴申隆包装材料有限公司 | A kind of foaming composite sheet and its preparation process |
| CN115122741A (en) * | 2022-08-18 | 2022-09-30 | 山东森博斯特塑胶科技有限公司 | Tear-resistant base material film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628998A (en) * | 2009-07-28 | 2010-01-20 | 上海三承高分子材料科技有限公司 | Environment friendly low calorific value and heat preservation master batch, membrane master batch and composite membrane |
| CN104441870A (en) * | 2014-11-29 | 2015-03-25 | 昆明钢铁控股有限公司 | Low-density stone paper and preparation method thereof |
-
2015
- 2015-12-31 CN CN201511033643.7A patent/CN105504446B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101628998A (en) * | 2009-07-28 | 2010-01-20 | 上海三承高分子材料科技有限公司 | Environment friendly low calorific value and heat preservation master batch, membrane master batch and composite membrane |
| CN104441870A (en) * | 2014-11-29 | 2015-03-25 | 昆明钢铁控股有限公司 | Low-density stone paper and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106750846A (en) * | 2016-11-18 | 2017-05-31 | 潍坊仲铂新材料有限公司 | A kind of low melting point packaging film and its application in packaging bag is prepared |
| CN109823693A (en) * | 2018-12-26 | 2019-05-31 | 江阴申隆包装材料有限公司 | A kind of foaming composite sheet and its preparation process |
| CN115122741A (en) * | 2022-08-18 | 2022-09-30 | 山东森博斯特塑胶科技有限公司 | Tear-resistant base material film |
| CN115122741B (en) * | 2022-08-18 | 2024-02-27 | 山东森博斯特塑胶科技有限公司 | Tear-resistant substrate film |
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| CN105504446B (en) | 2019-03-19 |
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