CN110256750A - A kind of low density polyethylene (LDPE) foaming Yoga mat and preparation method thereof - Google Patents
A kind of low density polyethylene (LDPE) foaming Yoga mat and preparation method thereof Download PDFInfo
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- C08J9/12—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 physical blowing agent
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Abstract
The present invention relates to foamed material technical fields, more particularly to a kind of low density polyethylene (LDPE) foaming Yoga mat and preparation method thereof, it is made of the substance of following parts by weight: low density polyethylene (LDPE) 30-65%, composite elastic material 30-60%, auxiliary agent 5-10%, foaming agent 0.1-1%, the present invention is based on low density polyethylene (LDPE), it is equipped with composite elastic material and auxiliary agent, it is foamed in a manner of carbon dioxide physically foamed, so that product uniform in foaming, foaming is stablized, and finally obtained low density polyethylene (LDPE) foaming Yoga mat has that skin feel, resilience is good, impact strength is high.
Description
Technical field
The present invention relates to foamed material technical fields, and in particular to a kind of low density polyethylene (LDPE) foaming Yoga mat and its preparation
Method.
Background technique
Yoga, it is excellent with cultivating one's moral character, nourishing one's nature and improving body flexibility etc. as a kind of exercise method originating from India
Point has become increasingly popular in China, becomes a kind of higher sports of people's participation.Naturally, Yoga mat
Just become the indispensable tool that people carry out yoga exercise.Yoga mat can effectively reduce the feeling of pain of human body and ground face contact, the fine jade
Gal pad should also have preferable non-skid property, toughness and mechanical property in addition to should have the characteristics such as soft and good resilience.
Major part Yoga mat is process by PVC material at present, it is mainly by PVC, plasticizer, foaming agent and calcium carbonate
Equal fillers mixing, forms by linked network and foamable.But PVC material brittleness is big, poor mechanical property, and skid resistance and resilience are not
It is good.There are also part Yoga mats to use EVA, EPE crosslinked foaming material, but all not environmentally.
Low density polyethylene (LDPE) (LDPE) foamed material is since its density is small, light weight, specific area is big, specific strength is high, energy
Absorbability is strong, damping, the features such as sound insulation and heat-proof quality are good, so being used widely.But low density polyethylene (LDPE) foams
The disadvantages of material is poor there is also resilience limits low density polyethylene (LDPE) foamed material in the further application of Yoga mat, spy
It is not application of even more no low density polyethylene (LDPE) in terms of Yoga mat in carbon dioxide physically foamed system.
Summary of the invention
The purpose of the present invention is aiming at the shortcomings in the prior art, provide a kind of low density polyethylene (LDPE) that resilience is good foaming
Yoga mat and preparation method thereof.
The purpose of the present invention is achieved through the following technical solutions: a kind of low density polyethylene (LDPE) foaming Yoga mat, feature exist
In: the low density polyethylene (LDPE) foams Yoga mat using carbon dioxide as foaming agent, is the low density polyethylene (LDPE) of 1:1-2:1 with weight ratio
It is primary raw material with composite elastic material.
Preferably, it is made of the substance of following parts by weight:
Low density polyethylene (LDPE) 30-65%
Composite elastic material 30-60%
Auxiliary agent 5-10%
Foaming agent 0.1-1%
The foaming agent is carbon dioxide.
Preferably, the density of the low density polyethylene (LDPE) is 0.910-0.925g/cm3, and MFI is 0.1g/10min to 5g/
10min。
Preferably, the composite elastic material is ethylene-vinyl acetate copolymer EVA, ethylene-octene copolymer POE, SEBS
In elastomer, thermoplastic sulfurized rubber TPV it is any two or more.
More preferably, it is total to be equipped with ethene-vinyl acetate based on thermoplastic sulfurized rubber TPV for the composite elastic material
One or more of polymers EVA, ethylene-octene copolymer POE, SEBS elastomer.
Preferably, the auxiliary agent is one or more of montmorillonite, paraffin, nanometer calcium carbonate.
Preferably, the auxiliary agent is organo montmorillonite.
Preferably, the TPV is the modified TPV of butadiene-styrene rubber.The addition of the modified TPV of butadiene-styrene rubber, not only increases product
Mechanical property, and increase Yoga mat when in use to the frictional force on ground, play the role of anti-skidding.
Preferably, the MFI of the EVA is 5-8g/10min.
Preferably, the POE is polyethylene octene elastomer of the MFI in 2-2.5g/10min.
Preferably, the modified TPV of the butadiene-styrene rubber by 10 parts of TPV, 2-6 parts of butadiene-styrene rubber, 0.5-1 parts of graphene oxides,
1-2 parts of calcium carbonate, 0.5-1 parts of stearic acid, 0.5-1 parts of nano silicas, 0.5-1 parts of maleic anhydride grafted linear low-densities are poly-
It is granulated and obtains after ethylene modified, the above number is parts by weight.
A kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat, it includes the following steps:
Step 1: low density polyethylene (LDPE), composite elastic material, auxiliary agent are uniformly mixed, mixed material is obtained；
Step 2: mixed material is added in extruder, injects foaming agent, through extrusion foaming, obtains low density polyethylene (LDPE) hair
Steep Yoga mat.
Beneficial effects of the present invention: the present invention is equipped with composite elastic material and auxiliary agent, based on low density polyethylene (LDPE) with two
Carbonoxide physical blowing mode foams, so that product uniform in foaming, foaming is stablized, finally obtained low density polyethylene (LDPE) hair
Steep Yoga mat have skin feel, resilience is good, impact strength is high.
Specific embodiment
The invention will be further described with the following Examples.
Embodiment 1.
A kind of low density polyethylene (LDPE) foaming Yoga mat, is made of the substance of following parts by weight:
Low density polyethylene (LDPE) 30%
Composite elastic material 60%
Auxiliary agent 9%
Foaming agent 1%
The foaming agent is carbon dioxide.
The density of the low density polyethylene (LDPE) is 0.910g/cm3, MFI 0.1g/10min.
The composite elastic material is the ethylene-vinyl acetate copolymer EVA and thermoplastic sulfurized rubber TPV that mass ratio is 1:1.
The auxiliary agent is the montmorillonite and paraffin that mass ratio is 1:1.
The auxiliary agent is organo montmorillonite.
The TPV is the modified TPV of butadiene-styrene rubber.
The modified TPV of the butadiene-styrene rubber by 10 parts of TPV, 2 parts of butadiene-styrene rubber, 0.5 part of graphene oxide, 1 part of calcium carbonate,
0.5 part of stearic acid, 0.5 part of nano silica, 0.5 part of maleic anhydride grafted linear low density polyethylene it is modified granulation and
?.
A kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat, it includes the following steps:
Step 1: low density polyethylene (LDPE), composite elastic material, auxiliary agent are uniformly mixed, mixed material is obtained；
Step 2: mixed material is added in extruder, injects foaming agent, through extrusion foaming, obtains low density polyethylene (LDPE) hair
Steep Yoga mat.
Embodiment 2.
A kind of low density polyethylene (LDPE) foaming Yoga mat, is made of the substance of following parts by weight:
Low density polyethylene (LDPE) 40%
Composite elastic material 54%
Auxiliary agent 5.5%
Foaming agent 0.5%
The foaming agent is carbon dioxide.
The density of the low density polyethylene (LDPE) is 0.915g/cm3, MFI 2g/10min.
The composite elastic material be mass ratio be 1:1:1 ethylene-vinyl acetate copolymer EVA, SEBS elastomer, thermoplastic
Property vulcanizate TPV.
The auxiliary agent be mass ratio be 1:1 paraffin, nanometer calcium carbonate.
The TPV is the modified TPV of butadiene-styrene rubber.
The modified TPV of the butadiene-styrene rubber by 10 parts of TPV, 5 parts of butadiene-styrene rubber, 0.6 part of graphene oxide, 1 part of calcium carbonate,
0.8 part of stearic acid, 0.8 part of nano silica, 0.8 part of maleic anhydride grafted linear low density polyethylene it is modified granulation and
?.
A kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat, it includes the following steps:
Step 1: low density polyethylene (LDPE), composite elastic material, auxiliary agent are uniformly mixed, mixed material is obtained；
Step 2: mixed material is added in extruder, injects foaming agent, through extrusion foaming, obtains low density polyethylene (LDPE) hair
Steep Yoga mat.
Embodiment 3.
A kind of low density polyethylene (LDPE) foaming Yoga mat, is made of the substance of following parts by weight:
Low density polyethylene (LDPE) 60%
Composite elastic material 34%
Auxiliary agent 5%
Foaming agent 1%
The foaming agent is carbon dioxide.
The density of the low density polyethylene (LDPE) is 0.925g/cm3, MFI 5g/10min.
The composite elastic material be mass ratio be 1:1 SEBS elastomer, thermoplastic sulfurized rubber TPV.
The auxiliary agent be mass ratio be 1:1 paraffin, nanometer calcium carbonate.
The TPV is the modified TPV of butadiene-styrene rubber.
The modified TPV of the butadiene-styrene rubber is by 10 parts of TPV, 5 parts of butadiene-styrene rubber, 1 part of graphene oxide, 2 parts of calcium carbonate, 1 part
Stearic acid, 1 part of nano silica, 1 part of maleic anhydride grafted linear low density polyethylene it is modified granulation and obtain.
A kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat, it includes the following steps:
Step 1: low density polyethylene (LDPE), composite elastic material, auxiliary agent are uniformly mixed, mixed material is obtained；
Step 2: mixed material is added in extruder, injects foaming agent, through extrusion foaming, obtains low density polyethylene (LDPE) hair
Steep Yoga mat.
Embodiment 4.
A kind of low density polyethylene (LDPE) foaming Yoga mat, is made of the substance of following parts by weight:
Low density polyethylene (LDPE) 60%
Composite elastic material 34%
Auxiliary agent 5%
Foaming agent 1%
The foaming agent is carbon dioxide.
The density of the low density polyethylene (LDPE) is 0.925g/cm3, MFI 5g/10min.
The composite elastic material be mass ratio be 1:1:1 ethylene-vinyl acetate copolymer EVA, ethylene-octene copolymer
POE, SEBS elastomer.
The auxiliary agent be mass ratio be 1:1 montmorillonite, paraffin.
The auxiliary agent is organo montmorillonite.
A kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat, it includes the following steps:
Step 1: low density polyethylene (LDPE), composite elastic material, auxiliary agent are uniformly mixed, mixed material is obtained；
Step 2: mixed material is added in extruder, injects foaming agent, through extrusion foaming, obtains low density polyethylene (LDPE) hair
Steep Yoga mat.
Embodiment 5.
A kind of low density polyethylene (LDPE) foaming Yoga mat, is made of the substance of following parts by weight:
Low density polyethylene (LDPE) 60%
Composite elastic material 34%
Auxiliary agent 5%
Foaming agent 1%
The foaming agent is carbon dioxide.
The density of the low density polyethylene (LDPE) is 0.925g/cm3, MFI 3g/10min.
The composite elastic material be mass ratio be 1:1:1 ethylene-octene copolymer POE, SEBS elastomer, thermoplasticity sulphur
Change glue TPV.
The auxiliary agent be mass ratio be 1:1 paraffin, nanometer calcium carbonate.
The TPV is the modified TPV of butadiene-styrene rubber.
The modified TPV of the butadiene-styrene rubber is by 10 parts of TPV, 6 parts of butadiene-styrene rubber, 1 part of graphene oxide, 2 parts of calcium carbonate, 0.5
The modified granulation of part stearic acid, 1 part of nano silica, 0.5 part of maleic anhydride grafted linear low density polyethylene and obtain.
A kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat, it includes the following steps:
Step 1: low density polyethylene (LDPE), composite elastic material, auxiliary agent are uniformly mixed, mixed material is obtained；
Step 2: mixed material is added in extruder, injects foaming agent, through extrusion foaming, obtains low density polyethylene (LDPE) hair
Steep Yoga mat.
Embodiment 6.
A kind of low density polyethylene (LDPE) foaming Yoga mat, is made of the substance of following parts by weight:
Low density polyethylene (LDPE) 64%
Composite elastic material 34%
Auxiliary agent 5%
Foaming agent 1%
The foaming agent is carbon dioxide.
The density of the low density polyethylene (LDPE) is 0.915g/cm3, MFI 3g/10min.
The composite elastic material be mass ratio be 1:1:1:1 ethylene-vinyl acetate copolymer EVA, ethylene-octene copolymerization
Object POE, SEBS elastomer, thermoplastic sulfurized rubber TPV.
The auxiliary agent be mass ratio be 1:1:1 montmorillonite, paraffin, nanometer calcium carbonate.
The auxiliary agent is organo montmorillonite.
The TPV is the modified TPV of butadiene-styrene rubber.
The modified TPV of the butadiene-styrene rubber is by 10 parts of TPV, 4 parts of butadiene-styrene rubber, 1 part of graphene oxide, 2 parts of calcium carbonate, 1 part
Stearic acid, 1 part of nano silica, 0.5 part of maleic anhydride grafted linear low density polyethylene it is modified granulation and obtain.
A kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat, it includes the following steps:
Step 1: by POE, EVA, TPV, montmorillonite mixing granulation, modified particles are obtained；
Step 2: low density polyethylene (LDPE), modified particles are added in extruder, and injection foaming agent obtains low through extrusion foaming
Density polyethylene foaming Yoga mat.
。
Wherein, resilience is to take away after pushing down product 2 seconds with 5kg mass weight, and the time required for product restores to the original state comments
Estimate resilience.Other than the embodiment of the present invention 4, the time required for remaining embodiment product restores to the original state at 2 seconds or so, is said
Bright product of the present invention resilience is good.In the embodiment of the present invention 4, thermoplastic sulfurized rubber TPV is not used, it can be seen that it springs back
Property be deteriorated, illustrate that TPV has played important function.In addition, in the embodiment of the present invention 6, since preferably elastic material combines, and with most
Good auxiliary combination is cooperated, so the elastic effect of the embodiment of the present invention 6 is considerably beyond other embodiments.From upper table
It can also be seen that impact strength, tensile strength, bending strength of low density polyethylene (LDPE) foaming Yoga mat prepared by the present invention etc. are comprehensive
Mechanical property is closed to have excellent performance.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (9)
- The Yoga mat 1. a kind of low density polyethylene (LDPE) foams, it is characterised in that: the low density polyethylene (LDPE) foams Yoga mat with titanium dioxide Carbon is foaming agent, using weight ratio for 1:1-2:1 low density polyethylene (LDPE) and composite elastic material as primary raw material.
- The Yoga mat 2. a kind of low density polyethylene (LDPE) according to claim 1 foams, it is characterised in that: the composite elastic material For appointing in ethylene-vinyl acetate copolymer EVA, ethylene-octene copolymer POE, SEBS elastomer, thermoplastic sulfurized rubber TPV Anticipate two or more.
- The Yoga mat 3. a kind of low density polyethylene (LDPE) according to claim 1 foams, it is characterised in that: it is by following parts by weight Substance be made:Low density polyethylene (LDPE) 30-65%Composite elastic material 30-60%Auxiliary agent 5-10%Foaming agent 0.1-1%.
- The Yoga mat 4. a kind of low density polyethylene (LDPE) according to claim 1-3 foams, it is characterised in that: described low The density of density polyethylene is 0.910-0.925g/cm3, and MFI is 0.1g/10min to 5g/10min.
- The Yoga mat 5. a kind of low density polyethylene (LDPE) according to claim 3 foams, it is characterised in that: the auxiliary agent is to cover to take off One or more of soil, paraffin, nanometer calcium carbonate.
- The Yoga mat 6. a kind of low density polyethylene (LDPE) according to claim 3 foams, it is characterised in that: the auxiliary agent is organic Montmorillonite.
- The Yoga mat 7. a kind of low density polyethylene (LDPE) according to claim 3 foams, it is characterised in that: the thermoplastic vulcanizates Glue TPV is the modified TPV of butadiene-styrene rubber.
- The Yoga mat 8. a kind of low density polyethylene (LDPE) according to claim 7 foams, it is characterised in that: the butadiene-styrene rubber changes TPV is by 10 parts of TPV, 2-6 parts of butadiene-styrene rubber, 0.5-1 parts of graphene oxides, 1-2 parts of calcium carbonate, 0.5-1 parts of stearic acid, 0.5- for property 1 part of nano silica, 0.5-1 parts of maleic anhydride grafted linear low density polyethylenes it is modified granulation and obtain.
- 9. a kind of preparation method of low density polyethylene (LDPE) foaming Yoga mat as claimed in claim 3, it is characterised in that: under it includes State step:Step 1: low density polyethylene (LDPE), composite elastic material, auxiliary agent are uniformly mixed, mixed material is obtained；Step 2: mixed material is added in extruder, injects foaming agent, through extrusion foaming, obtains low density polyethylene (LDPE) hair Steep Yoga mat.
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