CN106279962A - A kind of low-temperature impact resistance clear PE composite and preparation method thereof - Google Patents
A kind of low-temperature impact resistance clear PE composite and preparation method thereof Download PDFInfo
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- CN106279962A CN106279962A CN201610921503.1A CN201610921503A CN106279962A CN 106279962 A CN106279962 A CN 106279962A CN 201610921503 A CN201610921503 A CN 201610921503A CN 106279962 A CN106279962 A CN 106279962A
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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
- C08L23/08—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
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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
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/02—Heterophasic composition
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Abstract
The present invention relates to a kind of low-temperature impact resistance clear PE composite, be made up of the component of following weight portion: PE is 60 parts 80 parts；Hydrogenated styrene butadiene block copolymer is 6 parts 12 parts；Antioxidant is 0.1 part 0.5 part；Lubricant is 0.1 part 0.3 part.SBES is evenly distributed in the continuous phase that PE is formed as dispersion phase, when by external impacts, the SEBS elastomer particles being dispersed in PE resin is by causing crazing and induction shear band, it is possible to absorb substantial amounts of impact energy, so that the low-temperature flexibility of PE composite increases；Additionally between SBES difference block, the existence of chemical bond limits the Entropy Changes of each block, and block copolymer can produce being separated of microcosmic, and forms the least domain structure, and this domain structure is less than the wavelength of light.When crystalline size is less than visible wavelength, there is not refraction and reflection in light, this can improve the transparency of material.
Description
Technical field
The invention belongs to technical field of polymer materials, particularly relate to a kind of low-temperature impact resistance clear PE composite and
Preparation method.
Background technology
Polyethylene (PE) has light weight, nontoxic, odorless, and chemical stability is good, and electrical insulation capability is good, and the most insoluble
In common solvent, the advantages such as water absorption is little.In recent years the kind that during oneself becomes five big resins for universal use, growth rate is the fastest, extensively should
For fields such as chemical industry, building materials, household electrical appliances, automobiles, become the resins for universal use of yield first, but polyethylene itself also has a lot of deficiency
Under part, mainly cryogenic conditions, impact resistance is poor, and the transparency is poor, and outward appearance lacks aesthetic feeling so that PE is at packaging, Medical treatment device
The application in the field such as tool, household supplies is restricted.
Summary of the invention
It is an object of the invention to provide a kind of low-temperature impact resistance clear PE composite and preparation method thereof, multiple to improve PE
The low-temperature impact property of condensation material and the transparency.
The present invention is achieved by the following technical solutions:
A kind of low-temperature impact resistance clear PE composite, is made up of the component of following weight portion:
Described PE is linear low density polyethylene.
Described PE is LLDPE 7042.
Described antioxidant is three (2,4-di-t-butyl) phenyl-phosphite, four [β-(3,5-di-tert-butyl-hydroxy phenyls)
Propanoic acid] one or many in pentaerythritol ester or 1,3,5-trimethyl-2,4,6-(3,5-di-t-butyl-4-hydroxyphenylmethyl) benzene
Kind.
Described lubricant is one or more in zinc stearate, calcium stearate or potassium stearate.
The preparation method of the low-temperature impact resistance clear PE composite of a kind of any of the above-described, comprises the following steps:
(1) PE of 60 parts-80 parts, the SEBS of 6 parts-12 parts, 0.1 part of-0.5 part of antioxidant, 0.1 part-0.3 part lubrication are weighed
Agent is mixed and stirred for uniformly, obtaining compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite.
Preferably, described step (2) is particularly as follows: put into double screw extruder by the compound obtained in step (1)
Extruding pelletization in hopper, wherein, described double screw extruder includes six humidity provinces sequentially arranged, district's temperature 140～160
DEG C, two district's temperature 170～200 DEG C, three district's temperature 170～200 DEG C, four district's temperature 170～200 DEG C, five district's temperature 170～200
DEG C, six district's temperature 170～200 DEG C, head temperature 170～200 DEG C；Screw speed 200～260r/min.
The invention has the beneficial effects as follows:
1, SEBS is the triblock copolymer of polystyrene, ethylene-butene copolymer, polystyrene, wherein Ethylene/Butylene
Copolymer, as soft section, has close refractive index and the good compatibility with polyethylene.Additionally chemical bond between different blocks
There is the Entropy Changes limiting each block, block copolymer can produce being separated of microcosmic, and forms the least domain structure, this
Domain structure is less than the wavelength of light.When crystalline size is less than visible wavelength, there is not refraction and reflection in light, this can improve material
The transparency of material.
2, SBES is evenly distributed in the continuous phase that PE is formed as dispersion phase, when by external impacts, is dispersed in PE
SEBS elastomer particles in resin is by causing crazing and induction shear band, it is possible to absorb substantial amounts of impact energy, so that
The low-temperature flexibility of PE composite increases.
Detailed description of the invention
Describing technical scheme by the following examples in detail, below example is only exemplary, only
Can be used for explaining and illustrate technical scheme, and be not to be construed as the restriction to technical solution of the present invention.
The application provides a kind of low-temperature impact resistance clear PE composite, is made up of the component of following weight portion:
Described PE is linear low density polyethylene (LLDPE), it is preferable that PE is LLDPE 7042, for smooth containing opening
The linear low density polyethylene of agent.
Described antioxidant is three (2,4-di-t-butyl) phenyl-phosphite (being called for short Irganox168), four [β-(3,5-bis-uncles
Butyl-4-hydroxy phenyl) propanoic acid] pentaerythritol ester (be called for short Irganox1010) and 1,3,5-trimethyl-2,4,6-(3,5-bis-
Tertiary butyl-4-hydroxy benzyl) one or more in benzene (be called for short Irganox1330).
Described lubricant is one or more in zinc stearate, calcium stearate or potassium stearate.
The application also provides for the preparation method of the low-temperature impact resistance clear PE composite of a kind of any of the above-described, including with
Lower step:
(1) PE of 60 parts-80 parts, the SEBS of 6 parts-12 parts, 0.1 part of-0.5 part of antioxidant, 0.1 part-0.3 part lubrication are weighed
Agent is mixed and stirred for uniformly, obtaining compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite.
Preferably, described step (2) is particularly as follows: put into double screw extruder by the compound obtained in step (1)
Extruding pelletization in hopper, i.e. obtains PE composite, and wherein, described double screw extruder includes six temperature sequentially arranged
District, district's temperature 140～160 DEG C, two district's temperature 170～200 DEG C, three district's temperature 170～200 DEG C, four district's temperature 170～200
DEG C, five district's temperature 170～200 DEG C, six district's temperature 170～200 DEG C, head temperature 170～200 DEG C；Screw speed 200～
260r/min。
Raw material used in various embodiments of the present invention is as follows:
LLDPE (model 7042), Sinopec asphalt in Shenli Refinery；SEBS (model MD6945), KRATON company of the U.S.；Firmly
Fat acid calcium, expects chemical industry in Hubei；Stearic acid sodium, Hubei emerging milky way chemical industry；Potassium stearate, Zhengzhou nation promise chemical industry；Antioxidant (model
Irganox168, Irganox1010, Irganox1330), Switzerland's Ciba.
Test instrunment used by the present invention is as follows:
ZSK30 type double screw extruder, W&P company of Germany；JL-1000 type tensile testing machine, Guangzhou the most just experiment instrument
Device company produces；HTL900-T-5B type injection (mo(u)lding) machine, Hai Tai plastics machinery company limited produces；XCJ-500 type shock-testing
Machine, Chengde testing machine factory produces；QT-1196 type tester for elongation, Dongguan City Gao Tai detecting instrument company limited；QD-GJS-
B12K type homogenizer, Beijing perseverance Order instrument and meter company limited.
Embodiment 1
(1) weigh 60 parts of PE, 6 parts of SEBS, 0.1 part of Irganox168,0.1 part of calcium stearate are mixed and stirred for uniformly,
To compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite P1.
Wherein, double screw extruder includes six humidity provinces sequentially arranged, and the temperature of the first humidity province is 140 DEG C, the
The temperature of two humidity provinces is 170 DEG C, and the temperature of the 3rd humidity province is 170 DEG C, and the temperature of the 4th humidity province is 170 DEG C, the 5th temperature
The temperature in degree district is 170 DEG C, and the temperature of the 6th humidity province is 170 DEG C, and the head temperature of double screw extruder is 170 DEG C, screw rod
Rotating speed is 200r/min.
Embodiment 2
(1) weigh 80 parts of PE, 12 parts of SEBS, 0.1 part of Irganox1010,0.2 part of Irganox1330,0.2 part
Irganox168,0.3 part of sodium stearate are mixed and stirred for uniformly, obtaining compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite P2.
Wherein, double screw extruder includes six humidity provinces sequentially arranged, and the temperature of the first humidity province is 160 DEG C, the
The temperature of two humidity provinces is 200 DEG C, and the temperature of the 3rd humidity province is 200 DEG C, and the temperature of the 4th humidity province is 200 DEG C, the 5th temperature
The temperature in degree district is 200 DEG C, and the temperature of the 6th humidity province is 200 DEG C, and the head temperature of double screw extruder is 200 DEG C, screw rod
Rotating speed is 260r/min.
Embodiment 3
(1) weigh 70 parts of PE, 9 parts of SEBS, 0.3 part of Irganox1330,0.2 part of potassium stearate are mixed and stirred for uniformly,
To compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite P3.
Wherein, double screw extruder includes six humidity provinces sequentially arranged, and the temperature of the first humidity province is 150 DEG C, the
The temperature of two humidity provinces is 185 DEG C, and the temperature of the 3rd humidity province is 185 DEG C, and the temperature of the 4th humidity province is 185 DEG C, the 5th temperature
The temperature in degree district is 185 DEG C, and the temperature of the 6th humidity province is 185 DEG C, and the head temperature of double screw extruder is 185 DEG C, screw rod
Rotating speed is 230r/min.
Embodiment 4
(1) 75 parts of PE, 10 parts of SEBS, 0.2 part of Irganox1010,0.2 part of Irganox168,0.1 part of stearic acid are weighed
Potassium, 0.1 part of calcium stearate are mixed and stirred for uniformly, obtaining compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite P4.
Wherein, double screw extruder includes six humidity provinces sequentially arranged, and the temperature of the first humidity province is 160 DEG C, the
The temperature of two humidity provinces is 190 DEG C, and the temperature of the 3rd humidity province is 190 DEG C, and the temperature of the 4th humidity province is 190 DEG C, the 5th temperature
The temperature in degree district is 190 DEG C, and the temperature of the 6th humidity province is 190 DEG C, and the head temperature of double screw extruder is 190 DEG C, screw rod
Rotating speed is 250r/min.
Embodiment 5
(1) PE of 65 parts, the SEBS of 11 parts, 0.2 part of Irganox1330,0.1 part of Irganox168,0.1 part of tristearin are weighed
Acid is received and is mixed and stirred for uniformly, obtaining compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite P5.
Wherein, double screw extruder includes six humidity provinces sequentially arranged, and the temperature of the first humidity province is 155 DEG C, the
The temperature of two humidity provinces is 195 DEG C, and the temperature of the 3rd humidity province is 195 DEG C, and the temperature of the 4th humidity province is 200 DEG C, the 5th temperature
The temperature in degree district is 200 DEG C, and the temperature of the 6th humidity province is 200 DEG C, and the head temperature of double screw extruder is 200 DEG C, screw rod
Rotating speed is 255r/min.
Comparative example 1
(1) PE of 80 parts, 0.1 part of Irganox1010,0.1 part of Irganox168,0.1 part of sodium stearate mixing are weighed also
Stir, obtain compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite D1.
Wherein, double screw extruder includes six humidity provinces sequentially arranged, and the temperature of the first humidity province is 150 DEG C, the
The temperature of two humidity provinces is 190 DEG C, and the temperature of the 3rd humidity province is 190 DEG C, and the temperature of the 4th humidity province is 190 DEG C, the 5th temperature
The temperature in degree district is 190 DEG C, and the temperature of the 6th humidity province is 190 DEG C, and the head temperature of double screw extruder is 190 DEG C, screw rod
Rotating speed is 220r/min.
Performance test:
Batten test made by PE composite injection machine above-described embodiment 1-5 and comparative example 1 prepared, and tests data
Such as following table:
The each embodiment of table 1 and the test of comparative example properties of product
As can be seen from the above table, embodiment 1-5 is compared with comparative example 1, and light transmittance has had the raising of many degree, and mist degree has
The reduction of many degree, the transparency of the PE composite of this explanation present invention has obtained improving significantly, additionally from
It can also be seen that in table that low-temperature impact have also been obtained improvement, this is greatly expanded the application of PE composite, has very
Important meaning.
Below it is only the description of the preferred embodiment of the present invention, it is noted that due to the finiteness of literal expression, and
Objectively there is unlimited concrete structure, for those skilled in the art, without departing from the principle of the invention
On the premise of, it is also possible to making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (7)
1. a low-temperature impact resistance clear PE composite, it is characterised in that be made up of the component of following weight portion:
Low-temperature impact resistance clear PE composite the most according to claim 1, it is characterised in that described PE is linear low close
Degree polyethylene.
Low-temperature impact resistance clear PE composite the most according to claim 2, it is characterised in that described PE is LLDPE
7042。
Low-temperature impact resistance clear PE composite the most according to claim 1, it is characterised in that described antioxidant is three
(2,4-di-t-butyl) phenyl-phosphite, four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester or 1,3,
One or more in 5-trimethyl-2,4,6-(3,5-di-t-butyl-4-hydroxyphenylmethyl) benzene.
Low-temperature impact resistance clear PE composite the most according to claim 1, it is characterised in that described lubricant is stearic
One or more in acid zinc, calcium stearate or potassium stearate.
6. a preparation method for the low-temperature impact resistance clear PE composite any one of claim 1 to 5, its feature exists
In, comprise the following steps:
(1) weigh the PE of 60 parts-80 parts, the SEBS of 6 parts-12 parts, 0.1 part of-0.5 part of antioxidant, 0.1 part of-0.3 part of lubricant mix
Merging stirs, and obtains compound；
(2) the compound extruding pelletization that will obtain in step (1), i.e. obtains PE composite.
The preparation method of low-temperature impact resistance clear PE composite the most according to claim 6, it is characterised in that described step
Suddenly (2) particularly as follows: put into extruding pelletization in the hopper of double screw extruder, wherein, institute by the compound obtained in step (1)
State six humidity provinces that double screw extruder includes sequentially arranging, district's temperature 140～160 DEG C, two district's temperature 170～200 DEG C,
Three district's temperature 170～200 DEG C, four district's temperature 170～200 DEG C, five district's temperature 170～200 DEG C, six district's temperature 170～200 DEG C,
Head temperature 170～200 DEG C；Screw speed 200～260r/min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610921503.1A CN106279962A (en) | 2016-10-21 | 2016-10-21 | A kind of low-temperature impact resistance clear PE composite and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610921503.1A CN106279962A (en) | 2016-10-21 | 2016-10-21 | A kind of low-temperature impact resistance clear PE composite and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385006A (en) * | 2018-11-12 | 2019-02-26 | 金陵科技学院 | A kind of high transparency water-proof sheet material PP Pipe Compound and preparation method thereof |
| CN109942947A (en) * | 2018-11-19 | 2019-06-28 | 任静儿 | A kind of low-temperature resistance PE composite material |
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| CN103131076A (en) * | 2013-01-25 | 2013-06-05 | 福建奥峰科技有限公司 | Material special for breathable film with antiflaming effect and preparation method thereof |
| CN103694542A (en) * | 2013-12-30 | 2014-04-02 | 广州石头造环保科技有限公司 | High-fill high-resilience soft expanded polyethylene material and preparation method thereof |
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2016
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| CN103131076A (en) * | 2013-01-25 | 2013-06-05 | 福建奥峰科技有限公司 | Material special for breathable film with antiflaming effect and preparation method thereof |
| CN103694542A (en) * | 2013-12-30 | 2014-04-02 | 广州石头造环保科技有限公司 | High-fill high-resilience soft expanded polyethylene material and preparation method thereof |
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| 俞喜菊等: "《SEBS/HDPE共混物加工性能及力学性能的研究》", 《塑料工业》 * |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385006A (en) * | 2018-11-12 | 2019-02-26 | 金陵科技学院 | A kind of high transparency water-proof sheet material PP Pipe Compound and preparation method thereof |
| CN109942947A (en) * | 2018-11-19 | 2019-06-28 | 任静儿 | A kind of low-temperature resistance PE composite material |
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