CN109233095A - Modified polypropylene material for refrigerator ice milk layer drawer - Google Patents
Modified polypropylene material for refrigerator ice milk layer drawer Download PDFInfo
- Publication number
- CN109233095A CN109233095A CN201810892541.8A CN201810892541A CN109233095A CN 109233095 A CN109233095 A CN 109233095A CN 201810892541 A CN201810892541 A CN 201810892541A CN 109233095 A CN109233095 A CN 109233095A
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- CN
- China
- Prior art keywords
- modified polypropylene
- polypropylene material
- ice milk
- layer drawer
- refrigerator ice
- Prior art date
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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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention relates to a kind of polypropylene materials, and in particular to the modified polypropylene material for refrigerator ice milk layer drawer.The present invention by using relative low price polyolefine material, inorganic mineral and function additive etc., pass through physical modification, obtain a kind of modified polypropylene material that can substitute traditional material polyolefin, this modified polypropylene material asepsis environment-protecting, processing fluidity is good, good mechanical performance, low-temperature impact resistance is high, molding shrinkage is suitable with ABS or HIPS, ABS or HIPS can be replaced to be molded into the product for meeting main engine plants' requirement in the case where not changing existing injection mold dimensional conditions, due to not containing unsaturated double-bond in material, the ageing-resistant performance of material is higher than both the above material；It is filled due to using low-cost polyolefine material and a large amount of inorganic mineral, overall cost of the invention has dropped 10-15% compared to traditional ABS and HIPS, can generate great economic benefit.
Description
Technical field
The present invention relates to a kind of polypropylene materials, and in particular to the modified polypropylene material for refrigerator ice milk layer drawer.
Background technique
Polypropylene (PP) is small with its density, cost performance is high, and the characteristics such as excellent heat resistance, corrosion resistance and easy processing exist
Automobile, household electric appliances are widely used, and become that automobile, dosage is maximum in household electrical appliances plastics, kind with the fastest developing speed.
But since that there are shrinking percentages is big, product size stability is poor, easy buckling deformation by general PP；Low-temperature flexibility is poor, easy brittle failure；Heat-resisting,
The disadvantages of photooxidation aging property is poor is unable to satisfy the particular/special requirement of refrigerator drawer, it is therefore necessary to processing is modified to PP material, it is special
It is higher to the rigidity and toughness reguirements of material not when the materials'use for refrigerator drawer.
It is currently applied to the mineral filler that the modified polypropylene material of refrigerator uses and mainly uses common talcum powder.Due to cunning
The chemical structure and polarity and PP matrix of mountain flour have biggish difference, the effect between talcum powder and acrylic resin
Power is weaker, under the external force for being stretched or impacting, is easy to produce interface unbound and cavitation, leads to underbead crack
Generation and crackle continuous expansion, make its tensile strength, elongation at break and impact strength are all declined, while rigidity increase
Add amplitude relatively low.And the material requirements of refrigerator has enough rigidity and certain toughness, relatively low rigidity and toughness are difficult to meet
Requirement of the refrigerator for material higher performance.By further modified technique, the performance of modified polypropylene material is improved to reach
The requirement of refrigerator seems very necessary popularization and use of the modified polypropylene material in refrigerator.
China Patent No. 95110591.4 publication date on February 05th, 1997, discloses a entitled a kind of for electricity
The patent document of the special polypropene plate of refrigerator lining, the thermoforming special polypropene plate, contains impact polypropylene
100 parts (by weight), 0-60 parts of filler material of inert inorganic mineral salt, 0-30 parts of high molecular polymer toughener, coupling agent
0.1-3 parts, there is preferable impact strength at low temperature and good sag characteristic, the thermoforming suitable for refrigerator lining.But
Its rigidity is relatively low, it is impossible to be used in the material at the position high to rigidity requirement such as refrigerator drawer.
In addition, refrigerator ice milk layer drawer carries out injection molding using ABS or HIPS material, material price is high, processing performance
It is contradicted with the mechanical property (especially low-temperature impact performance) of its material, the processing performance of even two kinds materials is good, product
Mechanical property it is relatively poor, and contain unsaturated double-bond in material, be easy aging, influence the service life of material.
Summary of the invention
The technical problem to be solved in the present invention is that overcome the deficiencies in the prior art, by using the poly- of relative low price
Olefin material, inorganic mineral and function additive etc. obtain product of the invention by physical modification, this modified polypropene
Material non-toxic environmental protection, processing fluidity is good, good mechanical performance, and low-temperature impact resistance is high.
The technical solution that this patent solves above-mentioned technical problem is as follows: the modified polypropene material for refrigerator ice milk layer drawer
Material, the percentage of raw and auxiliary material are as follows: PP (polypropylene): 30-40%；HDPE (high density polyethylene (HDPE)): 5-10%；LDPE is (low
Density polyethylene): 5-10%；Toughener: 3-8%；It is mineral-filled: 40-50%；Function additive 1-5%.
Further, the toughener is polyolefins toughener.
Further, the polyolefins toughener is POE (polyolefin elastomer), EPDM (ethylene propylene diene rubber), POP
One of (polyolefin plastomers).
Further, the mineral-filled one or more for calcium carbonate, talcum powder, wollastonite.
Further, the function additive be zinc stearate, polyethylene wax, EBS dispersing agent, antioxidant, compatilizer one
Kind is several.
The beneficial effect of this patent is: polyolefine material, inorganic mineral of the present invention by using relative low price
And function additive etc. obtains a kind of modified polypropylene material that can substitute traditional material polyolefin by physical modification,
This modified polypropylene material asepsis environment-protecting, processing fluidity is good, good mechanical performance, and low-temperature impact resistance is high, molding shrinkage
It is suitable with ABS or HIPS, ABS or HIPS can be replaced to be molded into the case where not changing existing injection mold dimensional conditions and meet host
The product that factory requires, due to not containing unsaturated double-bond in material, the ageing-resistant performance of material is higher than both the above material；By
In using low-cost polyolefine material and the filling of a large amount of inorganic mineral, overall cost of the invention is compared to traditional
ABS and HIPS have dropped 10-15%, can generate great economic benefit.
Embodiment
For the modified polypropylene material of refrigerator ice milk layer drawer, the percentage of raw and auxiliary material are as follows: PP:30-40%；
HDPE:5-10%；LDPE:5-10%；Toughener: 3-8%；It is mineral-filled: 40-50%；Function additive 1-5%.
Further, the toughener is polyolefins toughener.
Further, the polyolefins toughener is one of POE, EPDM, POP.
Wherein, POE is made of octene and polyolefin resin, continuous phase with lax the polymer for two-phase mutually occur and taking leave of
Blend.Its main feature is that: (1) ethylene chain of flexible chain bending and the crystallization of octene as physical crosslinking point keep it existing excellent
Patience have outstanding processability again；(2) there is no unsaturated bond in POE molecular structure, there is outstanding ageing-resistant function；(3)
The distribution of POE molecular weight is narrow, has preferable mobility, good with compatible polyolefin；(4) outstanding mobility can improve filler
The effect of laxing, the weld mark strength for the finished product that can also improve together.
EPDM ethylene propylene diene rubber is the terpolymer of ethylene, propylene and non-conjugated diene hydrocarbon, beginning quotient in 1963
Industry metaplasia produces.Annual global consumption figure is 800,000 tons.The most important characteristic of EPDM is exactly its superior resistance to oxidation, ozone-resistant
With erosion-resistant ability.Since ethylene propylene diene rubber belongs to polyene (PA66) hydrocarbon family, it has fabulous vulcanization characteristics.Institute
Have in rubber, EPDM has minimum specific gravity.It can absorb a large amount of filler and oil and influencing characterisitic is little.Therefore it can make
Make low-cost rubber compound.Its molecular structure and characteristic are as follows: alkadienes has special structure, only one of two keys
Could be copolymerized, unsaturated double bond primarily as interlinkage at.Another is unsaturated will not to become main polymer chain, only can be at
For avris chain.The principal polymeric chain of EPDM is fully saturated.This characteristic allows EPDM to resist heat,
Light, oxygen, especially ozone.EPDM is substantially non-polar, water absorption rate resistant to polar solvent and chemicals
It is low, there is good insulation characterisitic.
EPDM and POE is two kinds of common toughener, all preferable with polyacrylic compatibility, and the toughness of blend can be made aobvious
It writes and improves, notch impact strength obviously increases, while also declines the mobility of blend, and tensile strength decreases.But two
Influence of the kind toughener to mobility, rigidity and glossiness is different.When the dosage of toughener is identical, the stream of POE toughened system
Dynamic property, rigidity and glossiness are superior to EPDM system.
POP is polyolefin plastomers, and for comonomer less than 20%, density is higher than POE, and therefore, POP is more suitable work
For blown film, extrusion, curtain coating hot sealing layer；Toughness and durability are strong, are blended as basic polymer or with other polymers, with
Improve the flexibility of the mobility either manufactured goods in process；Adhesive strength is excellent, is suitable in the formula of hot melt adhesive,
So that melt viscosity resultant force is higher, construction is clean.
Further, the mineral-filled one or more for calcium carbonate, talcum powder, wollastonite.
Further, the function additive be zinc stearate, polyethylene wax, EBS dispersing agent, antioxidant, compatilizer one
Kind is several.
The characteristic for the modified polypropylene material for refrigerator ice milk layer drawer that above-mentioned raw and auxiliary material obtains are as follows: cantilever beam lacks
Mouth impact strength: >=15KJ/M2；Tensile strength: >=14MPa；Melt mass flow rate: >=10g/10min；Molding shrinkage
0.6-0.8%；Relative density: 1.3-1.4g/cm3.
The different embodiment of three raw and auxiliary material percentage is given below:
Table 1 is the percentage of the raw and auxiliary material of three embodiments
| PP | HDPE | LDPE | Toughener | It is mineral-filled | Function additive | |
| Embodiment 1 | 35 | 9 | 5 | 5 | 42 | 4 |
| Embodiment 2 | 38 | 7 | 6 | 6 | 40 | 3 |
| Embodiment 3 | 30 | 5 | 5 | 7 | 48 | 5 |
Table 2 is the properties variation of three embodiments
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (5)
1. being used for the modified polypropylene material of refrigerator ice milk layer drawer, it is characterised in that: the percentage of its raw and auxiliary material are as follows: PP
(polypropylene): 30-40%；HDPE (high density polyethylene (HDPE)): 5-10%；LDPE (low density polyethylene (LDPE)): 5-10%；Toughener:
3-8%；It is mineral-filled: 40-50%；Function additive 1-5%.
2. the modified polypropylene material according to claim 1 for refrigerator ice milk layer drawer, it is characterised in that: the increasing
Tough dose is polyolefins toughener.
3. the modified polypropylene material according to claim 2 for refrigerator ice milk layer drawer, it is characterised in that: described poly-
Olefines toughener is one of POE, EPDM, POP.
4. the modified polypropylene material according to claim 1 for refrigerator ice milk layer drawer, it is characterised in that: the mine
Object is filled with the one or more of calcium carbonate, talcum powder, wollastonite.
5. the modified polypropylene material according to claim 1 for refrigerator ice milk layer drawer, it is characterised in that: the function
Energy auxiliary agent is the one or more of zinc stearate, polyethylene wax, EBS dispersing agent, antioxidant, compatilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892541.8A CN109233095A (en) | 2018-08-07 | 2018-08-07 | Modified polypropylene material for refrigerator ice milk layer drawer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892541.8A CN109233095A (en) | 2018-08-07 | 2018-08-07 | Modified polypropylene material for refrigerator ice milk layer drawer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109233095A true CN109233095A (en) | 2019-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810892541.8A Pending CN109233095A (en) | 2018-08-07 | 2018-08-07 | Modified polypropylene material for refrigerator ice milk layer drawer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621950A (en) * | 2017-05-22 | 2019-12-27 | 伊莱克斯家用电器股份公司 | Refrigerator with at least one inner plastic lining and method for producing the lining |
| CN110791022A (en) * | 2019-09-24 | 2020-02-14 | 宁波一彬电子科技股份有限公司 | High melt strength polypropylene for micro-foaming injection molding and preparation method thereof |
| CN115926310A (en) * | 2022-03-09 | 2023-04-07 | 江苏永顺新材料科技有限公司 | Low-temperature-resistant polyethylene composite material and application thereof in refrigerator drawer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1131165A (en) * | 1995-11-17 | 1996-09-18 | 南京化工大学 | Supertough master-pellets for polypropylene plastics and making method thereof |
| CN1141932A (en) * | 1995-08-03 | 1997-02-05 | 中国石化齐鲁石油化工公司 | Special polypropylene material for refrigerator lining |
| CN1986627A (en) * | 2005-12-22 | 2007-06-27 | 吴永刚 | Composite polypropylene material and its preparing method |
| CN102108156A (en) * | 2009-12-28 | 2011-06-29 | 上海日之升新技术发展有限公司 | Compound polypropylene material for refrigerator drawers and preparation method thereof |
| US20130295364A1 (en) * | 2012-05-01 | 2013-11-07 | Dow Global Technologies Llc | Polyolefin based films with improved water vapor transmission rates |
| CN104109330A (en) * | 2014-07-04 | 2014-10-22 | 浙江俊尔新材料股份有限公司 | Polypropylene composite material as well as preparation method and application thereof |
| CN107573587A (en) * | 2017-08-29 | 2018-01-12 | 东莞市亨嘉橡塑科技有限公司 | One kind is used for polypropylene dedicated composite of safety cap and preparation method thereof |
-
2018
- 2018-08-07 CN CN201810892541.8A patent/CN109233095A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141932A (en) * | 1995-08-03 | 1997-02-05 | 中国石化齐鲁石油化工公司 | Special polypropylene material for refrigerator lining |
| CN1131165A (en) * | 1995-11-17 | 1996-09-18 | 南京化工大学 | Supertough master-pellets for polypropylene plastics and making method thereof |
| CN1986627A (en) * | 2005-12-22 | 2007-06-27 | 吴永刚 | Composite polypropylene material and its preparing method |
| CN102108156A (en) * | 2009-12-28 | 2011-06-29 | 上海日之升新技术发展有限公司 | Compound polypropylene material for refrigerator drawers and preparation method thereof |
| US20130295364A1 (en) * | 2012-05-01 | 2013-11-07 | Dow Global Technologies Llc | Polyolefin based films with improved water vapor transmission rates |
| CN104109330A (en) * | 2014-07-04 | 2014-10-22 | 浙江俊尔新材料股份有限公司 | Polypropylene composite material as well as preparation method and application thereof |
| CN107573587A (en) * | 2017-08-29 | 2018-01-12 | 东莞市亨嘉橡塑科技有限公司 | One kind is used for polypropylene dedicated composite of safety cap and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110621950A (en) * | 2017-05-22 | 2019-12-27 | 伊莱克斯家用电器股份公司 | Refrigerator with at least one inner plastic lining and method for producing the lining |
| CN110791022A (en) * | 2019-09-24 | 2020-02-14 | 宁波一彬电子科技股份有限公司 | High melt strength polypropylene for micro-foaming injection molding and preparation method thereof |
| CN115926310A (en) * | 2022-03-09 | 2023-04-07 | 江苏永顺新材料科技有限公司 | Low-temperature-resistant polyethylene composite material and application thereof in refrigerator drawer |
| CN115926310B (en) * | 2022-03-09 | 2024-02-20 | 江苏永顺新材料科技有限公司 | Low-temperature-resistant polyethylene composite material and application thereof in refrigerator drawer |
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Application publication date: 20190118 |
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