CN107540917A - A kind of composite purification packaging bag and preparation method thereof - Google Patents
A kind of composite purification packaging bag and preparation method thereof Download PDFInfo
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- CN107540917A CN107540917A CN201710876985.8A CN201710876985A CN107540917A CN 107540917 A CN107540917 A CN 107540917A CN 201710876985 A CN201710876985 A CN 201710876985A CN 107540917 A CN107540917 A CN 107540917A
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Abstract
The invention provides a kind of composite purification packaging bag, and it is made up of the component of following parts by weight：35 45 parts of 50 60 parts of HDPE, LLDPE, 10 parts of thermoplastic elastomer (TPE), 10 parts of composite calcium carbonate, the preparation process of wherein composite calcium carbonate are：Calcium carbonate superfine powder is added in ultra-pure water, ultrasonic disperse adds zirconium iso-propoxide, tetraethyl orthosilicate, water, ethanol after 30 minutes, magnetic agitation 10 hours after being heated to 75 DEG C, centrifugation obtains mixture after 20 minutes, the mixture is washed with deionized and is placed in afterwards in Muffle furnace twice, it is pyrolyzed 1 hour at 450 DEG C, is cooled to grinding after room temperature and obtains composite calcium carbonate.Present invention also offers the preparation method of the composite purification packaging bag.Composite purification packaging bag provided by the present invention not only has very strong paracentesis resistance energy, also with good toughness, tear resistance, scraping and wiping resistance performance.
Description
Technical field
The present invention relates to one kind to purify packaging bag, more particularly to a kind of composite purification packaging bag and preparation method thereof.
Background technology
At present, semiconductor crystal wafer, mobile phone and computer contact screen, high-purity silicon material, computer hard disc, optics, LCD-
TFT planes are shown and the packaging of various clean cleaning wiping cloths can all use purification packaging bag.The conventional purification packaging bag of in the market
Produced mostly using after low density polyethylene (LDPE) and the blending of normal linear low density polyethylene (LDPE) by curtain coating or film-blowing process.
, it is necessary to be packed with purification packaging bag to article in the transportation of article, due to net in outbound transport and transport process
Change packaging bag can by various impacts and collision, so in order to ensure purify packaging bag in object it is safe and effective, keep away
Exempt from the problem of existing bag body deflection is inadequate, deflection improves by way of increasing bag body thickness in some producers, so increases
Production cost is added, while has improved the heat-sealing temperature of bag body, consumed during encapsulation larger.High density polyethylene (HDPE) (HDPE) is due to it
Excellent tensile strength and barrier property is widely used in packing film, but when packaging bag has the article of pointed projections position, it is thin
Film is easily punctured, ftractureed, and causes packed article to pollute or fail, its reason is：HDPE prepare thin film mechanical performance be
Film unit impact breakage quality, tensile strength, elongation at break are smaller, therefore in order to further widen making for HDPE films
With scope, improving HDPE films paracentesis resistance can have great importance.
Chinese patent application CN201310659578.3 discloses a kind of recyclable food pack of high-barrier puncture resistant, bag
Pack is made up of laminating polyethylene film, and the laminating polyethylene film is multi-layer co-extruded using material based on polyethylene, use
Go out technology to be made, three layers are included in the laminating polyethylene film structure：Outer layer of polyethene containing inorganic filler；Contain
The polyethylene middle level of bulking agent；Polyethylene inner layer containing starch, grease and long branched chain structure polyethylene.Although the invention improves
Puncture resistance, but its toughness, tear resistance, scraping and wiping resistance performance and fire resistance be poor.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of composite purification packaging bag, and it not only has very strong puncture-resistant
Performance, also with good toughness, tear resistance, scraping and wiping resistance performance.
In order to solve the above technical problems, the technical scheme is that：
A kind of composite purification packaging bag, it is made up of the component of following parts by weight：HDPE 50-60 parts, LLDPE 35-45
Part, 10 parts of thermoplastic elastomer (TPE), 10 parts of composite calcium carbonate, the preparation process of wherein composite calcium carbonate are：
By calcium carbonate superfine powder add ultra-pure water in, ultrasonic disperse added after 30 minutes zirconium iso-propoxide, tetraethyl orthosilicate, water,
Ethanol, magnetic agitation 10 hours after being heated to 75 DEG C, centrifugation obtain mixture after 20 minutes, the mixture are washed with deionized water
Wash and be placed in afterwards in Muffle furnace twice, be pyrolyzed 1 hour at 450 DEG C, be cooled to grinding after room temperature and obtain composite calcium carbonate.
Further, thermoplastic elastomer (TPE) of the present invention is POE.
Further, in the preparation process of composite calcium carbonate of the present invention, calcium carbonate superfine powder, ultra-pure water, zirconium iso-propoxide,
Tetraethyl orthosilicate, water, the mass ratio of ethanol are 10:100:1:0.42:2:5.
Further, in the preparation process of composite calcium carbonate of the present invention, rotating speed during centrifugation is 8000rpm.
Another technical problem to be solved by the present invention is that provide the preparation method of above-mentioned composite purification packaging bag.
In order to solve the above technical problems, technical scheme is：
A kind of preparation method of composite purification packaging bag, comprises the following steps：
(1) each component is weighed by weight, and composite calcium carbonate and the HDPE and thermoplastic elastomer (TPE) of 1/5 weight are added
In extruder, masterbatch is obtained after melt blending at 160-170 DEG C；
(2) masterbatch for obtaining step (1) is added in extruder with LLDPE and remaining HDPE, thermoplastic elastomer (TPE),
At 160-170 DEG C extruded stock is obtained after melt blending；
(3) vane cools down after extruded stock inflation is drawn, and is drawn after herringbone clamping plate with carry-over pinch rolls, thin after sided corona treatment
Film winds to obtain HDPE laminated films；
(4) the HDPE laminated films for obtaining step (3) carry out the clean processing of dedirt, are then cut out according to size requirement
Sealing is cut, composite purification packaging bag is obtained after double-layer seal encapsulation.
Further, in the step (3), blow-up ratio when inflation is drawn is 2.5-3.
Further, in the step (3), draw ratio when inflation is drawn is 4-6.
Compared with prior art, the invention has the advantages that：
1) present invention with the addition of composite calcium carbonate, thermoplastic elastomer (TPE), LLDPE in HDPE matrix resins, effectively improve
HDPE tensile strength and elongation at break, so as to substantially improve HDPE paracentesis resistance energy, thoroughly solves electronics production
During product component transports due to packaging bag itself paracentesis resistance can etc. physical property problems and caused by pollution, eliminate repetition
The process for cleaning dedusting, product is greatly reduced while saving cost, resource and has repeated machine and personnel behaviour during cleaning dedusting
Make and caused additional injuries and defect rate, and greatly increase product safety in utilization and validity.
2) composite calcium carbonate has harmful effect to HDPE toughness, therefore the present invention with the addition of the thermoplasticity of suitable parts by weight
Elastomer, effectively increase the toughness of purification packaging bag.
3) mechanical performance of calcium carbonate in itself is stronger, but it has certain photoextinction, can reduce the light of packaging bag
Pool property and transparency, thus the present invention by sol-gal process by silica and zirconia-coated in calcium carbonate surface, two
Silica and zirconium dioxide can effectively improve the glossiness and transparency of packaging bag.
4) silica in composite calcium carbonate and zirconium dioxide also has preferable mechanical performance, wear-resisting scratch-resistant
Property, therefore the tear resistance of packaging bag, scraping and wiping resistance performance can also be effectively improved, and zirconium iso-propoxide when preparing composite calcium carbonate,
The mass ratio of tetraethyl orthosilicate is 1:When 0.42, the properties of composite calcium carbonate and packaging bag reach optimum balance.
5) composite calcium carbonate belongs to inorganic particulate, and it is dispersed bad in HDPE if directly adding, therefore this hair
It is bright that masterbatch first is made in itself and part HDPE, thermoplastic elastomer (TPE), masterbatch is then subjected to second melting with other components again and is total to
It is mixed, so that composite calcium carbonate can disperse well, further give play to its premium properties.
6) extrusion temperature general control when prepared by the present invention ensures that head temperature is uniform at 160-170 DEG C, extrusion temperature
High then resin is spent easily to decompose, and film embrittlement, especially it is remarkably decreased longitudinal tensile strength, and the too low then resin plastic of temperature
Change bad, it is impossible to sleekly carry out expansion stretching, the tensile strength of film is relatively low, and the glossiness and poor transparency on surface.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment, herein schematic description and description of the invention
For explaining the present invention, but it is not as a limitation of the invention.
Embodiment 1-4
Composite purification packaging bag is prepared (in terms of parts by weight) according to the ratio of table 1：
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | |
| HDPE | 50 | 60 | 52 | 55 |
| LLDPE | 45 | 35 | 39 | 40 |
| POE | 10 | 10 | 10 | 10 |
| Composite calcium carbonate | 10 | 10 | 10 | 10 |
Table 1
Embodiment 1-4 preparation method comprises the following steps：
(1) by calcium carbonate superfine powder add ultra-pure water in, ultrasonic disperse added after 30 minutes zirconium iso-propoxide, tetraethyl orthosilicate,
Water, ethanol, magnetic agitation 10 hours after being heated to 75 DEG C, mixture is obtained after centrifuging 20 minutes under 8000rpm rotating speeds, this is mixed
Compound is washed with deionized to be placed in Muffle furnace afterwards twice, is pyrolyzed 1 hour at 450 DEG C, is cooled to after room temperature to grind and is answered
Calcium carbonate is closed, wherein, calcium carbonate superfine powder, ultra-pure water, zirconium iso-propoxide, tetraethyl orthosilicate, water, the mass ratio of ethanol are 10:100:
1:0.42:2:5；
(2) each component is weighed by weight, and composite calcium carbonate and the HDPE and POE of 1/5 weight are added in extruder,
At 160-170 DEG C masterbatch is obtained after melt blending；
(3) masterbatch for obtaining step (1) is added in extruder with LLDPE and remaining HDPE, POE, 160-170 DEG C
Extruded stock is obtained after lower melt blending；
(4) vane cools down after extruded stock inflation is drawn, and is drawn after herringbone clamping plate with carry-over pinch rolls, thin after sided corona treatment
Film winds to obtain HDPE laminated films, wherein, blow-up ratio when inflation is drawn is 2.5-3, draw ratio 4-6；
(5) the HDPE laminated films for obtaining step (3) carry out the clean processing of dedirt, are then cut out according to size requirement
Sealing is cut, composite purification packaging bag is obtained after double-layer seal encapsulation.
Comparative example 1
Do not include POE in component, other components and preparation method are same as Example 4.
Comparative example 2
Composite calcium carbonate in component replaces with common calcium carbonate superfine powder, other components and preparation method and embodiment 4
It is identical.
Comparative example 3
Comparative example 3 is the packaging bag made of common HDPE.
Puncture-resistant performance test
After tested, embodiment 1-4 and comparative example 1-3 paracentesis resistance can be as shown in table 2：
Table 2
As seen from Table 2,1-4 of embodiment of the present invention transverse tensile strength, endwise tensile strength, transverse breakage elongation
Rate, longitudinal elongation at break rate and puncture-resistant power are all higher than comparative example 3 a lot, show that the present invention has very strong paracentesis resistance
Can, wherein the paracentesis resistance of embodiment 4 can be most strong.Transverse tensile strength, endwise tensile strength, the transverse breakage of comparative example 1 are stretched
Long rate, longitudinal elongation at break rate and puncture-resistant power have to be declined by a small margin, illustrates that POE can have certain shadow to paracentesis resistance
Ring；The transverse tensile strength of comparative example 2, endwise tensile strength, transverse breakage elongation, longitudinal elongation at break rate and endurable
Thorn power then maintains an equal level with embodiment 1-4, illustrates that influence of the type of calcium carbonate to paracentesis resistance energy is very small.
Tear resistance is tested
It is as shown in table 3 with reference to GB/T 529-1999 test tearing strengths, test result：
| Tearing strength (N/mm) | |
| Embodiment 1 | 44.2 |
| Embodiment 2 | 43.7 |
| Embodiment 3 | 44.0 |
| Embodiment 4 | 44.6 |
| Comparative example 1 | 44.2 |
| Comparative example 2 | 36.3 |
| Comparative example 3 | 32.5 |
Table 3
As seen from Table 3,1-4 of embodiment of the present invention tearing strength is above comparative example 3 a lot, shows that the present invention has
Good tear resistance, the tear resistance of wherein embodiment 4 are best.The tearing strength of comparative example 1 and embodiment 1-4 phases
When illustrating that influences of the POE to tear resistance is very small；The tearing strength of comparative example 2 has declined, and illustrates in composite calcium carbonate
Silica and zirconium dioxide be improve tear resistance principal element.
Scraping and wiping resistance performance is tested
Abrasion are tested out with reference to ASTM D1894, test result is as shown in table 4：
| Abrasion | |
| Embodiment 1 | 14.8 |
| Embodiment 2 | 15.1 |
| Embodiment 3 | 14.5 |
| Embodiment 4 | 14.2 |
| Comparative example 1 | 14.6 |
| Comparative example 2 | 18.8 |
| Comparative example 3 | 23.7 |
Table 4
As seen from Table 4,1-4 of embodiment of the present invention abrasion are respectively less than comparative example 3 a lot, and it is fine to show that the present invention has
Scraping and wiping resistance performance, the scraping and wiping resistance performance of wherein embodiment 4 is best.The tearing strength of comparative example 1 is suitable with embodiment 1-4, says
Influences of the bright POE to scraping and wiping resistance performance is very small；The abrasion of comparative example 2 have increased, and illustrate the titanium dioxide in composite calcium carbonate
Silicon and zirconium dioxide are the principal elements for improving scraping and wiping resistance performance.
Toughness test
Notch impact strength is tested out with reference to GB/T 1043-93, test result is as shown in table 5：
| Notch impact strength (kJm-2) | |
| Embodiment 1 | 26.3 |
| Embodiment 2 | 25.7 |
| Embodiment 3 | 26.4 |
| Embodiment 4 | 26.8 |
| Comparative example 1 | 18.5 |
| Comparative example 2 | 26.2 |
| Comparative example 3 | 13.4 |
Table 5
As seen from Table 5,1-4 of embodiment of the present invention notch impact strength is all higher than comparative example 3 a lot, shows the present invention
It is best with good toughness, the toughness of wherein embodiment 4.The notch impact strength of comparative example 1 declines much, illustrates that POE is
Improve the key factor of toughness；The notch impact strength of comparative example 2 is suitable with embodiment 1-4, illustrates the type of calcium carbonate to tough
The influence of property is very small.
The above-described embodiments merely illustrate the principles and effects of the present invention, not for the limitation present invention.It is any ripe
Know the personage of this technology all can carry out modifications and changes under the spirit and scope without prejudice to the present invention to above-described embodiment.Cause
This, those of ordinary skill in the art is complete without departing from disclosed spirit and institute under technological thought such as
Into all equivalent modifications or change, should by the present invention claim be covered.
Claims (7)
- A kind of 1. composite purification packaging bag, it is characterised in that：It is made up of the component of following parts by weight：HDPE 50-60 parts, LLDPE35-45 parts, 10 parts of thermoplastic elastomer (TPE), 10 parts of composite calcium carbonate, the preparation process of wherein composite calcium carbonate are：Calcium carbonate superfine powder is added in ultra-pure water, ultrasonic disperse adds zirconium iso-propoxide, tetraethyl orthosilicate, water, ethanol after 30 minutes, Magnetic agitation 10 hours after being heated to 75 DEG C, centrifugation obtain mixture after 20 minutes, the mixture are washed with deionized into two It is placed in Muffle furnace after secondary, is pyrolyzed 1 hour at 450 DEG C, is cooled to grinding after room temperature and obtains composite calcium carbonate.
- A kind of 2. composite purification packaging bag according to claim 1, it is characterised in that：The thermoplastic elastomer (TPE) is POE.
- A kind of 3. composite purification packaging bag according to claim 2, it is characterised in that：The preparation step of the composite calcium carbonate In rapid, calcium carbonate superfine powder, ultra-pure water, zirconium iso-propoxide, tetraethyl orthosilicate, water, the mass ratio of ethanol are 10:100:1:0.42:2: 5。
- A kind of 4. composite purification packaging bag according to claim 3, it is characterised in that：The preparation step of the composite calcium carbonate In rapid, rotating speed during centrifugation is 8000rpm.
- A kind of 5. preparation method of composite purification packaging bag according to Claims 1 to 4 any one, it is characterised in that： Comprise the following steps：(1) each component is weighed by weight, and composite calcium carbonate and the HDPE and thermoplastic elastomer (TPE) of 1/5 weight are added and extruded In machine, masterbatch is obtained after melt blending at 160-170 DEG C；(2) masterbatch for obtaining step (1) is added in extruder with LLDPE and remaining HDPE, thermoplastic elastomer (TPE), 160- At 170 DEG C extruded stock is obtained after melt blending；(3) vane is cooled down after extruded stock inflation is drawn, and is drawn after herringbone clamping plate with carry-over pinch rolls, and sided corona treatment rear film is received Volume obtains HDPE laminated films；(4) the HDPE laminated films for obtaining step (3) carry out the clean processing of dedirt, then carry out cutting envelope according to size requirement Mouthful, obtain composite purification packaging bag after double-layer seal encapsulation.
- A kind of 6. preparation method of composite purification packaging bag according to claim 5, it is characterised in that：The step (3) In, blow-up ratio when inflation is drawn is 2.5-3.
- A kind of 7. preparation method of composite purification packaging bag according to claim 6, it is characterised in that：The step (3) In, draw ratio when inflation is drawn is 4-6.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108752687A (en) * | 2018-05-03 | 2018-11-06 | 江阴市长泾新达塑料薄膜有限公司 | A kind of buffering package film and preparation method thereof |
| CN110466225A (en) * | 2019-09-16 | 2019-11-19 | 福建立邦包装有限公司 | A kind of CPE heat-sealing composite membrane and preparation method thereof |
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| WO2017106565A1 (en) * | 2015-12-15 | 2017-06-22 | Steve Kohn | Product and method for a plastic bag or plastic composition comprising inorganic minerals |
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| CN101397137A (en) * | 2007-09-27 | 2009-04-01 | 刘文红 | Globular inorganic oxide material, synthetic method, modification method and use thereof |
| KR20130102806A (en) * | 2012-03-08 | 2013-09-23 | 조순덕 | Composition for making garbage bag and method for making garbage bag using the same |
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| WO2017106565A1 (en) * | 2015-12-15 | 2017-06-22 | Steve Kohn | Product and method for a plastic bag or plastic composition comprising inorganic minerals |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108752687A (en) * | 2018-05-03 | 2018-11-06 | 江阴市长泾新达塑料薄膜有限公司 | A kind of buffering package film and preparation method thereof |
| CN110466225A (en) * | 2019-09-16 | 2019-11-19 | 福建立邦包装有限公司 | A kind of CPE heat-sealing composite membrane and preparation method thereof |
| CN110466225B (en) * | 2019-09-16 | 2021-07-23 | 福建立邦包装有限公司 | CPE (chlorinated polyethylene) heat-sealing composite film and preparation method thereof |
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| CN107540917B (en) | 2019-09-24 |
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