CN108399993A - A kind of soft door seal magnetic stripe of high hardness high toughness - Google Patents
A kind of soft door seal magnetic stripe of high hardness high toughness Download PDFInfo
- Publication number
- CN108399993A CN108399993A CN201810286032.0A CN201810286032A CN108399993A CN 108399993 A CN108399993 A CN 108399993A CN 201810286032 A CN201810286032 A CN 201810286032A CN 108399993 A CN108399993 A CN 108399993A
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- Prior art keywords
- magnetic stripe
- mixture
- door seal
- polyethylene
- high hardness
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Refrigerator Housings (AREA)
Abstract
The invention discloses a kind of soft door seal magnetic stripes of high hardness high toughness, it is characterized in that high hardness high toughness soft magnetic stripe material includes according to mass parts, 100 parts of ferromagnetic oxide powder, 5~10 parts of haloflex, 1~5 part of polyethylene, 0.5~1 part of stabilizer, 0.5~1 part of lubricant.Refrigerator door seal magnetic stripe of the present invention has both high rigidity and high tenacity, and product stability is good, safe and reliable, it is environment-protecting and non-poisonous, keep higher hardness, doubling not broken under high temperature environment, Unit Weight is smaller, at low cost, tensile resistance is good, the more uniform stabilization of elongation percentage, dimensional homogeneity is good, it is avoided that occur shrinking serious problem, material technology of the present invention is not only limited the use of in making refrigerator door seal magnetic stripe, can also make the other rubber magnet modeling class products of the round-shaped square of sheet.
Description
Technical field
The present invention relates to rubber magnet Material Fields, and in particular to a kind of soft door seal magnetic stripe of high hardness high toughness.
Background technology
In actual use, inside refrigerator door needs to install door seal refrigerator, and door seal has to be equipped with inside door seal gum cover
Soft magnetic stripe is made.Common refrigerator door seal soft magnetic stripe, for general hardness range at 42-50D (shore hardness), hardness is higher,
The requirement of formula and making soft magnetic stripe product facility to soft magnetic stripe material is higher.If only modification soft magnetic stripe material
Formula reduces the number of binder in soft magnetic stripe material prescription, can improve the hardness of soft magnetic stripe material, but soft magnetic
The toughness of strip material can be very poor, and elongation percentage can decline, when carrying out 180 degree doubling test to soft magnetic stripe material, soft magnetic stripe meeting
Fracture.If in order to ensure that refrigerator door seal soft magnetic stripe has preferable toughness and elongation percentage, need to match in soft magnetic stripe material
Increase the additive amount of binder in side, the hardness of soft magnetic stripe can be reduced very big at this time, and the entirety for seriously affecting soft magnetic stripe can
Performance.In short, common refrigerator door seal soft magnetic stripe is in the allocation process of material prescription, the hardness of soft magnetic stripe material
It can not get both with toughness, it is necessary to be accepted or rejected according to demand.But when people's actual use refrigerator, it is desirable that refrigerator door seal soft magnetic
Item has both high hardness high toughness, and stability is good, safe and reliable environment-protecting and non-poisonous, is not easy to soften at high temperature, doubling will not
Fracture, Unit Weight is smaller at low cost, and tensile resistance is good, and the more uniform stabilization of elongation percentage, dimensional homogeneity is good, is not in receive
Contract serious problem.For this purpose, our company has independently researched and developed a kind of soft door seal magnetic stripe of high hardness high toughness.
Invention content
The present invention provides a kind of soft door seal magnetic stripes of high hardness high toughness, solve the problems, such as to mention in background technology,
When disclosure satisfy that the people actually use refrigerator simultaneously, the requirement to refrigerator door seal soft magnetic stripe.
The technical solution adopted by the present invention is as follows：
A kind of soft door seal magnetic stripe of high hardness high toughness, it is characterised in that high hardness high toughness soft magnetic stripe new material according to
Mass parts include 100 parts of ferromagnetic oxide powder, 5~10 parts of haloflex, 1~5 part of polyethylene, 0.5~1 part of stabilizer, lubrication
0.5~1 part of agent.
Preferably, the ferromagnetic oxide powder is that strontium ferrite magnetic powder, barium ferrite magnetic powder, iron based nano crystal ferrite are compound
The particle size range of the mixture of one or both of magnetic powder or three kinds of mixture, ferromagnetic oxide powder is 0.5um~10um.
Preferably, the haloflex be resin type haloflex, one kind in elastomeric-type haloflex or
Two kinds of mixture.
Preferably, the polyethylene is linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), line style are gathered
One or both of ethylene, polyvinyl resin, low molecular weight polyethylene, low pressure low density polyethylene (LDPE), high pressure polyethylene mix
Close object or three kinds of mixture or four kinds of mixture.
Preferably, the stabilizer is in hydrotalcite system solid calcium zinc stabilizer, system of zeolites solid calcium zinc stabilizer
One or two kinds of mixtures or one or both of liquid calcium zinc stabilizer, calcium-zinc composite stabilizing agent mixture, water
Talcum system solid calcium zinc stabilizer and system of zeolites solid calcium zinc stabilizer outer shape are white powder or sheet or paste.
Preferably, the lubricant be polyethylene wax, stearic acid lubricant, ultra-low molecular weight northylen, oligomer wax,
The mixture or three kinds of mixture of one or both of cracking wax, polymer-wax, reconciliation wax or four kinds of mixture.
Compared with the prior art, beneficial effects of the present invention are as follows：
The present invention proposes a kind of soft door seal magnetic stripe of high hardness high toughness, and the refrigerator door seal made of material of the present invention is soft
Matter magnetic stripe solves common refrigerator door seal soft magnetic stripe in material prescription design process, cannot have both high rigidity and high-ductility
Property two kinds of indexs, 180 degree doubling test when will not be broken, the performance requirement that fracture elongation will not decline.Meanwhile using this hair
The refrigerator door seal soft magnetic stripe that bright material makes has both high hardness high toughness, and stability is good, safe and reliable environment-protecting and non-poisonous,
Higher hardness, 180 degree doubling is kept not to be broken when testing under hot environment, Unit Weight is smaller, at low cost, tensile resistance
Good, the more uniform stabilization of elongation percentage, dimensional homogeneity is good, is avoided that occur shrinking serious problem.Material of the present invention not only limits the use of
In making refrigerator door seal magnetic stripe, the other rubber magnet modeling class products of the round-shaped square of sheet can also be made.
Specific implementation mode
It is clearly and completely described below in conjunction with the technical solution in the embodiment of the present invention, it is clear that described reality
It is only a part of the embodiment of the present invention to apply example, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
The every other embodiment that logical technical staff is obtained without creative efforts belongs to the model of invention protection
It encloses.
With reference to embodiment and specific implementation mode, the present invention is described in further detail.
Embodiment
A kind of soft door seal magnetic stripe of high hardness high toughness, it is characterised in that high hardness high toughness soft magnetic stripe new material according to
Mass parts include 100 parts of ferromagnetic oxide powder, 5~10 parts of haloflex, 1~5 part of polyethylene, 0.5~1 part of stabilizer, lubrication
0.5~1 part of agent.The ferromagnetic oxide powder is strontium ferrite magnetic powder, barium ferrite magnetic powder, iron based nano crystal ferrite composite magnetic powder
One or both of mixture or three kinds of mixture, the particle size range of ferromagnetic oxide powder be 0.5um~10um.The chlorine
Change polyethylene is the mixture of one or both of resin type haloflex, elastomeric-type haloflex.The poly- second
Alkene is linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), Hi-fax, polyvinyl resin, low molecular weight
The mixture or three kinds of mixture of one or both of polyethylene, low pressure low density polyethylene (LDPE), high pressure polyethylene or four kinds
Mixture.The stabilizer is one kind in hydrotalcite system solid calcium zinc stabilizer, system of zeolites solid calcium zinc stabilizer
Or two kinds of mixture or the mixture of one or both of liquid calcium zinc stabilizer, calcium-zinc composite stabilizing agent, hydrotalcite body
Be solid calcium zinc stabilizer and system of zeolites solid calcium zinc stabilizer outer shape it is white powder or sheet or paste.The profit
Lubrication prescription is polyethylene wax, stearic acid lubricant, ultra-low molecular weight northylen, oligomer wax, cracking wax, polymer-wax, reconciliation
The mixture of one or both of wax or three kinds of mixture or four kinds of mixture.
The refrigerator door seal soft magnetic stripe (referred to as new formula in table) made of material of the present invention, in relevant physical property
On more common refrigerator door seal soft magnetic stripe (referred to as old formula in table), have huge advantage.Specifically it see the table below：
1, hardness (unit：D)
Table (1) the old and new are formulated magnetic stripe hardness balance
| Number | 1# | 2# | 3# | 4# | 5# | It is average |
| New formula | 57 | 56 | 56 | 56 | 55 | 56 |
| Old formula | 46 | 45 | 47 | 46 | 46 | 46 |
From upper table (1) as can be seen that the refrigerator door seal soft magnetic stripe that material of the present invention makes improves much in hardness,
The promotion of hardness solves the problems, such as that soft magnetic stripe softens under high temperature environment, while having both high hardness high toughness, 180 degree pair
It will not be broken when folding test, function admirable.
2, density (unit：g/cm3)
Table (2) the old and new are formulated the comparison of magnetic stripe density
| Number | 1# | 2# | 3# | 4# | 5# | It is average |
| New formula | 3.4251 | 3.5471 | 3.5741 | 3.5300 | 3.5488 | 3.5251 |
| Old formula | 3.6528 | 3.6713 | 3.6329 | 3.6453 | 3.6533 | 3.6511 |
From the point of view of upper table (2), the density smaller for the refrigerator door seal soft magnetic stripe that material of the present invention makes.And actually measure list
Consumption also illustrates same problem, and the same sections 2.5mm × 9mm are new to be formulated unit consumption 75g/m, are formulated 76g/m always.From entirety
On see the cost reductions of the new older formula materials of formula.
3, tensile strength (unit：MPa)
Table (3) the old and new are formulated the comparison of magnetic stripe tensile property
| Number | 1# | 2# | 3# | 4# | 5# | It is average |
| New formula | 6.19 | 7.30 | 7.15 | 7.01 | 7.44 | 7.02 |
| Old formula | 3.93 | 3.73 | 4.13 | 4.34 | 3.67 | 3.96 |
Upper table (3) statistics indicate that, there is the new magnetic stripe that is formulated higher intensity, high intensity to mean to be not easy to be stretched.
4, elongation percentage (unit：%)
Table (4) the old and new are formulated the comparison of magnetic stripe elongation percentage
| Number | 1# | 2# | 3# | 4# | 5# | It is average |
| New formula | 59.54 | 43.93 | 50.57 | 44.47 | 53.66 | 50.43 |
| Old formula | 155.69 | 184.25 | 154.31 | 176.25 | 182.34 | 170.57 |
The elongation percentage data more stable homogeneous that can be seen that new formula magnetic stripe from the data of upper table (4), substantially remains in
50% or so, and old magnetic stripe elongation percentage jumping characteristic is very big, it is very unstable, and elongation percentage is excessively high, causes in use often
Occur pullled it is very long, and then lead to problems such as size differ, shrink it is serious.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (6)
1. a kind of soft door seal magnetic stripe of high hardness high toughness, it is characterised in that high hardness high toughness soft magnetic stripe material is according to quality
Part includes 100 parts of ferromagnetic oxide powder, 5~10 parts of haloflex, 1~5 part of polyethylene, 0.5~1 part of stabilizer, lubricant
0.5~1 part.
2. the soft door seal magnetic stripe of a kind of high hardness high toughness according to claim 1, it is characterised in that the ferrite magnetic
Powder is the mixture of one or both of strontium ferrite magnetic powder, barium ferrite magnetic powder, iron based nano crystal ferrite composite magnetic powder
Or three kinds of mixture, the particle size range of ferromagnetic oxide powder is 0.5um~10um.
3. the soft door seal magnetic stripe of a kind of high hardness high toughness according to claim 1, it is characterised in that the chlorinated polyethylene
Alkene is the mixture of one or both of resin type haloflex, elastomeric-type haloflex.
4. the soft door seal magnetic stripe of a kind of high hardness high toughness according to claim 1, it is characterised in that the polyethylene is
The poly- second of linear low density polyethylene (LLDPE), low density polyethylene (LDPE), high density polyethylene (HDPE), Hi-fax, polyvinyl resin, low molecular weight
The mixture or three kinds of mixture of one or both of alkene, low pressure low density polyethylene (LDPE), high pressure polyethylene or four kinds it is mixed
Close object.
5. the soft door seal magnetic stripe of a kind of high hardness high toughness according to claim 1, it is characterised in that the stabilizer is
The mixture or liquid calcium of one or both of hydrotalcite system solid calcium zinc stabilizer, system of zeolites solid calcium zinc stabilizer
The mixture of one or both of zinc stabilizer, calcium-zinc composite stabilizing agent, hydrotalcite system solid calcium zinc stabilizer and zeolite
System solid calcium zinc stabilizer outer shape is white powder or sheet or paste.
6. the soft door seal magnetic stripe of a kind of high hardness high toughness according to claim 1, it is characterised in that the lubricant is
In polyethylene wax, stearic acid lubricant, ultra-low molecular weight northylen, oligomer wax, cracking wax, polymer-wax, reconciliation wax
One or two kinds of mixture or three kinds of mixture or four kinds of mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286032.0A CN108399993A (en) | 2018-04-03 | 2018-04-03 | A kind of soft door seal magnetic stripe of high hardness high toughness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810286032.0A CN108399993A (en) | 2018-04-03 | 2018-04-03 | A kind of soft door seal magnetic stripe of high hardness high toughness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108399993A true CN108399993A (en) | 2018-08-14 |
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ID=63099467
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810286032.0A Pending CN108399993A (en) | 2018-04-03 | 2018-04-03 | A kind of soft door seal magnetic stripe of high hardness high toughness |
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| CN (1) | CN108399993A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908602A (en) * | 2021-01-27 | 2021-06-04 | 江门江益磁材有限公司 | High-hardness and high-toughness rubber magnet and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465552A (en) * | 2013-09-18 | 2013-12-25 | 柴立民 | Magnetic adhesive tape and production method thereof |
| CN104945754A (en) * | 2015-07-20 | 2015-09-30 | 广州新莱福磁电有限公司 | Manufacturing method for improving attraction of rubber extrusion magnetic strip |
-
2018
- 2018-04-03 CN CN201810286032.0A patent/CN108399993A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465552A (en) * | 2013-09-18 | 2013-12-25 | 柴立民 | Magnetic adhesive tape and production method thereof |
| CN104945754A (en) * | 2015-07-20 | 2015-09-30 | 广州新莱福磁电有限公司 | Manufacturing method for improving attraction of rubber extrusion magnetic strip |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112908602A (en) * | 2021-01-27 | 2021-06-04 | 江门江益磁材有限公司 | High-hardness and high-toughness rubber magnet and preparation method thereof |
| CN112908602B (en) * | 2021-01-27 | 2023-01-24 | 江门江益磁材有限公司 | High-hardness and high-toughness rubber magnet and preparation method thereof |
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Application publication date: 20180814 |
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