CN106863973B - A kind of compound Yoga mat of the PU/PVC of binder free and preparation method thereof - Google Patents
A kind of compound Yoga mat of the PU/PVC of binder free and preparation method thereof Download PDFInfo
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- CN106863973B CN106863973B CN201710213182.4A CN201710213182A CN106863973B CN 106863973 B CN106863973 B CN 106863973B CN 201710213182 A CN201710213182 A CN 201710213182A CN 106863973 B CN106863973 B CN 106863973B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
- B32B5/20—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material foamed in situ
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
- A63B21/40—Interfaces with the user related to strength training; Details thereof
- A63B21/4027—Specific exercise interfaces
- A63B21/4037—Exercise mats for personal use, with or without hand-grips or foot-grips, e.g. for Yoga or supine floor exercises
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B6/00—Mats or the like for absorbing shocks for jumping, gymnastics or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—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
- C08J9/06—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 chemical blowing agent
- C08J9/10—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 chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B2209/00—Characteristics of used materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0221—Vinyl resin
- B32B2266/0235—Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/51—Elastic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/54—Yield strength; Tensile strength
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/584—Scratch resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/744—Non-slip, anti-slip
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/04—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08J2327/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2409/00—Characterised by the use of homopolymers or copolymers of conjugated diene hydrocarbons
- C08J2409/02—Copolymers with acrylonitrile
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
Abstract
The invention discloses compound Yoga mat of the PU/PVC of a kind of binder free and preparation method thereof, the Yoga mat include layer of PVC and single side covering base fabric PU layer, the layer of PVC, according to the mass fraction, comprising: 100 parts of PVC；80~90 parts of plasticizer；40~60 parts of filler；3~7 parts of modified foaming agent；1.5~3 parts of stabilizer；0.5~1 part of toner；5~10 parts of liquid nitrile rubber.The Yoga mat of this method preparation does not use any binder, PU layers can be combined with each other with what layer of PVC consolidated, simultaneously, layer of PVC ensure that the elasticity of Yoga mat, and PU layers enhance the wear-resisting of Yoga mat, scratch resistance and non-skid property, not only safety and environmental protection, and have excellent performance, be conducive to further genralrlization application.
Description
Technical field
The present invention relates to Yoga mat preparation field more particularly to a kind of compound Yoga mat of PU/PVC of binder free and its systems
Preparation Method.
Background technique
Modern life rhythm is fast, pressure is big, causes physical condition bad.And Yoga is a kind of improvement people physiology, the heart
The ability of reason, emotion and spirit aspect is a kind of motion mode for reaching body, soul and spiritual harmony, by more next
More people's likes, and Yoga mat is practice Yoga necessary article, and therefore, how to produce the Yoga mat haveing excellent performance becomes people
The hot spot of concern.
Existing Yoga mat is usually the materials such as PVC, PE, EVA, though the Yoga mat elasticity of material preparation is preferably,
Wear-resisting, scratch resistance and non-skid property are poor, the process of long-time service be not only easily damaged and the sliding of user's Yi Yin Yoga mat and
It is injured.In addition, in existing Yoga mat production process, it will usually it is added some pairs of poisonous and hazardous additives of human body, and Yoga
Pad is directly contacted with user's body, and the Yoga mat of safety and environmental protection material preparation is just able to satisfy the needs of user.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of compound fine jades of the PU/PVC of binder free
Gal pad and preparation method thereof, it is intended to solve that wear-resisting existing Yoga mat, scratch resistance and non-skid property are poor, inadequate safety and environmental protection is asked
Topic.
Technical scheme is as follows:
A kind of compound Yoga mat of the PU/PVC of binder free, wherein the PU layer including layer of PVC and single side covering base fabric, institute
Layer of PVC is stated, according to the mass fraction, comprising:
The compound Yoga mat of the PU/PVC of the binder free, wherein the plasticizer is dibutyl terephthalate.
The compound Yoga mat of the PU/PVC of the binder free, wherein the filler is calcium carbonate, the modified foaming
Agent is azodicarbonamide, and the stabilizer is potassium zinc stabilizer.
The compound Yoga mat of the PU/PVC of the binder free, wherein the PU thickness degree d1 is 0.2~0.5mm, described
Layer of PVC thickness d 2 is 3.8~7.8mm.
The preparation method of the compound Yoga mat of the PU/PVC of the binder free, wherein comprising steps of
A, the PVC, stabilizer and plasticizer are sequentially added in container, after stirring 20~50s, then into the container
Filler, modified foaming agent and toner are sequentially added, is stirred evenly after mixing, PVC slurry is obtained；
B, the PVC slurry is coated in PU layers of the base fabric, obtains PU/PVC complex layered materials；
C, the PU/PVC complex layered materials are placed in foaming furnace after being foamed and are embossed, the PU/ after being foamed
PVC complex layered materials；
D, the PU/PVC complex layered materials after the foaming are down to by room temperature using air-cooler and chill roll, then are gone
Side is cut out, and the compound Yoga mat of PU/PVC of binder free is obtained.
The preparation method of the compound Yoga mat of the PU/PVC of the binder free, wherein in the step A, the PVC slurry
The viscosity of material is 80000~120000cps.
The preparation method of the compound Yoga mat of the PU/PVC of the binder free, wherein in the step B, be coated in institute
It states in the PVC slurry penetration to PU layers of base fabric in PU layers of base fabric, makes PU layers to be combined into an entirety with layer of PVC.
The preparation method of the compound Yoga mat of the PU/PVC of the binder free, wherein in the step C, the PU/
The speed that PVC complex layered materials move in foaming furnace is 8~12m/min, and the air inlet mode of foaming furnace is to enter the wind up and down.
The preparation method of the compound Yoga mat of the PU/PVC of the binder free, wherein in the step C, in foaming furnace
It is the foaming section of 6m including 4 length, the blowing temperature of 4 foaming sections is followed successively by 180~200 DEG C, and 220~230 DEG C,
180~200 DEG C, 150~160 DEG C.
The preparation method of the compound Yoga mat of the PU/PVC of the binder free, wherein in the step D, air-cooler will
PU/PVC complex layered materials temperature after the foaming is down to 70~90 DEG C, and the number of chill roll is multiple.
The utility model has the advantages that it is raw material that the present invention, which selects the PU layer of single side covering base fabric, and it is coated in the PU layers of base fabric
In PVC slurry penetration to PU layers of base fabric, PU layers are made to be combined into an entirety with layer of PVC, the PU/PVC for obtaining binder free is compound
Yoga mat.The Yoga mat of this method preparation does not use any binder, and PU layers can be combined with each other with what layer of PVC consolidated,
Meanwhile layer of PVC ensure that the elasticity of Yoga mat, and PU layers enhance the wear-resisting of Yoga mat, scratch resistance and non-skid property, it is not only safe
Environmental protection, and have excellent performance, be conducive to further genralrlization application.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the compound Yoga mat preferred embodiment of the PU/PVC of binder free of the present invention.
Specific embodiment
The present invention provides compound Yoga mat of PU/PVC of a kind of binder free and preparation method thereof, to make mesh of the invention
, technical solution and effect it is clearer, clear, the present invention is described in more detail below.It should be appreciated that described herein
Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.
A kind of compound Yoga mat of the PU/PVC of binder free, which is characterized in that the PU including layer of PVC and single side covering base fabric
Layer, the layer of PVC, according to the mass fraction, comprising:
Referring to FIG. 1, Fig. 1 is that a kind of structure of the compound Yoga mat preferred embodiment of the PU/PVC of binder free of the present invention is shown
It is intended to, it can be seen from the figure that the present invention prepares the Yoga mat haveing excellent performance in such a way that layer of PVC and PU layers are compound.?
In use, PVC in Fig. 1 and ground face contact, ensure that Yoga is lined with enough elasticity, and PU layers itself wear-resisting, scratch resistance and
Non-skid property is good, and user is movable on PU layer, is not easy to slip and PU layers are not easy to be worn or scratch, effectively increase the Yoga
The comfort and durability of pad；Further, described PU layers is porous PU layers, is dropped in the liquid such as the sweat on Yoga mat
Body can leave the PU layer surface of Yoga mat by material itself.Meanwhile selecting the PU layer of single side covering base fabric is raw material, is made
Obtaining the PVC slurry being coated in the PU layers of base fabric can penetrate into PU layers of base fabric, make PU layers to pass through physics, change with layer of PVC
It learns active force and is combined into an entirety, which does not use any binder, greatly reduce the use of poisonous and harmful chemicals
Amount, meets the regulation of every laws and regulations and professional standard, and safety and environmental protection is conducive to further genralrlization application.In addition, base cloth layer
It is combined with each other with layer of PVC, is conducive to the stretch-resistance for enhancing the compound Yoga mat of the PU/PVC, is not easy in long-term use process
Deformation occurs.
Further, the plasticizer is dibutyl terephthalate, i.e. DOTP, and plasticizer commonly used in the art is usual
For dioctyl phthalate (DOP), phthalic acid two (2- ethyl hexyl) ester (DEHP) and dibutyl phthalate (DBP)
Deng adjacent benzene-like compounds, and adjacent benzene class plasticizer poisons human body, can generate endocrine, can cause reproduction and development barrier
Hinder, and energy induced hepatocellular carcinoma etc..The dibutyl terephthalate (DOTP) that the present invention uses, toxicity are significantly lower than adjacent benzene class plasticising
Agent, the present invention is by experimental study, and preferably the dosage of dibutyl terephthalate (DOTP) is 80~90 parts, can guarantee and its
His raw material cooperates to obtain preferable plasticization effect, and will not cause harm to the human body.
Further, the filler is calcium carbonate, and preferable amount is 40~60 parts, and the modified foaming agent is azo
Diformamide, preferable amount are 3~7 parts, and the stabilizer is potassium zinc stabilizer, and preferable amount is 1.5~3 parts.It is preferred that
, the dosage of the filler calcium carbonate is 40 parts, be conducive to the promotion of layer of PVC skid resistance using less filler, meanwhile,
Modified foaming agent is azodicarbonamide (AC), potassium zinc stabilizer is matched with filler, effectively improves the anti-skidding resistance to of layer of PVC
Grind performance.Further, the layer of PVC, further includes 5~10 parts of liquid nitrile rubber, liquid nitrile rubber be it is a kind of compared with
Good toughener cooperates with the other components in layer of PVC, effectively increases elastic, the anti-skidding and scratch resistance of layer of PVC
It can, it is preferred that the dosage of the liquid nitrile rubber is 7 parts.
Further, the PU thickness degree d1 is 0.2~0.5mm, and the layer of PVC thickness d 2 is 3.8~7.8mm, from
As can be seen that PU thickness degree d1 is to include the thickness of PU and the thickness of base fabric in Fig. 1.And the thickness (i.e. d1+d2) of Yoga mat is logical
It is often 4~8mm, for the Yoga mat of different-thickness, the layer of PVC thickness d 2 is 3.8~7.8mm, can guarantee different-thickness
Yoga mat all there is preferable elasticity, meanwhile, the PU thickness degree d1 is 0.2~0.5mm, can guarantee the anti-of Yoga mat
Sliding, wear-resisting and scratch resistance performance, prolongs the service life, and will not increase substantially production cost, it is furthermore preferred that the PU thickness degree
D1 is 0.3mm.
The invention also discloses a kind of preparation methods of compound Yoga mat of the PU/PVC based on the binder free, special
Sign is, comprising steps of
A, the PVC, stabilizer and plasticizer are sequentially added in container, after stirring 20~50s, then into the container
Filler, modified foaming agent and toner are sequentially added, is stirred evenly after mixing, PVC slurry is obtained；
B, the PVC slurry is coated in PU layers of the base fabric, obtains PU/PVC complex layered materials；
C, the PU/PVC complex layered materials are placed in foaming furnace after being foamed and are embossed, the PU/ after being foamed
PVC complex layered materials；
D, the PU/PVC complex layered materials after the foaming are down to by room temperature using air-cooler and chill roll, then are gone
Side is cut out, and the compound Yoga mat of PU/PVC of binder free is obtained.
In step, PVC, stabilizer and plasticizer are sequentially added in container first, 20~50s of high-speed stirred makes it
It is uniformly mixed, the churned mechanically revolving speed is 80~120rpm.Later, filler, modified hair are sequentially added in the container
Infusion, and 0.5~1 part of toner is added according to product demand.To the raw mixture from point mixing, mechanical stirring to no particle
And color is uniform, obtains PVC slurry.The viscosity of the PVC slurry is 80000~120000cps.The viscosity of PVC slurry is excessively high,
Not only foaming difficulty is big and the intensity of product is insufficient；The viscosity of PVC slurry is too low, and the elasticity of product is insufficient and easy to crack.And institute
The PVC slurry for stating viscosity can be fully penetrated into the base fabric, so that PU layers are closely compound with layer of PVC, not only elasticity is suitable,
And long-time service will not be layered, crack.Preferably, the viscosity of the slurry is 90000cps.
In stepb, the PVC slurry is coated uniformly in PU layers of the base fabric using knife coating, coating is thick
Degree thickness according to needed for product is adjusted, and obtains PU/PVC complex layered materials.
In step C, the PU/PVC complex layered materials are placed in foaming furnace and are foamed, packet in the foaming furnace
It includes cooling section and 4 length is the foaming section of 6m, and the air inlet mode of the foaming furnace is to enter the wind up and down.PU/PVC composite layer
Shape material with the speed uniform motion of 8~12m/min, successively undergoes 180~200 DEG C in foaming furnace, and 220~230 DEG C, 180
~200 DEG C, 150~160 DEG C of four sections of foaming process, 180~200 DEG C of first segment is prefoam process, is sent out by first low temperature
The process of bubble can make plasticizer play one's part to the full, and bubble of uniform size, more fine and smooth is produced under more mild environment
Hole, to improve the elasticity and comfort level of the compound Yoga mat of PU/PVC；220~230 DEG C of second segment is plasticizing process, passes through raising
Temperature decomposes foaming agent completely, so that the quantity for generating abscess reaches desired extent；180~200 DEG C of third section is sizing
In the stage, during reducing temperature, the bubble structure advantageously formed is become stable, strength enhancing；The 4th of 150~160 DEG C
Section is the precooling stage, and during being somebody's turn to do, appropriate retraction occurs for the abscess of generation, so that bubble size is basicly stable.
Using the multistage foaming of different temperatures, four sections of foaming process can be made to cooperate, obtain preferably foaming effect
Fruit.Meanwhile the PVC slurry in the PU layers of base fabric can be penetrated into further at high temperature in PU layers of base fabric, the PVC in base fabric
Slurry enlarged volume in foaming process, so that the compound action of the two is more stable and firm.
After final stage foaming, the PU/PVC complex layered materials are embossed while hot, the PU/ after being foamed
PVC complex layered materials.The effect of embossing is to increase the layer of PVC frictional force when being contacted with ground of Yoga mat, prevent user because
The whole slide of Yoga mat is injured.
Further, to the PU/PVC complex layered materials after the foaming using different Sheet Metal Forming Technologies and the side of cutting out
Method can produce other cushions for needing wear-resisting, scratch resistance and non-skid property, such as Anti-slip ground cushion, the products such as children's ground cushion.
In step D, the PU/PVC complex layered materials after the foaming are down to by room temperature using air-cooler and chill roll,
Trimming is carried out again, is cut out, and the compound Yoga mat of PU/PVC of binder free is obtained.Wherein, first use air-cooler by the PU/ after foaming
It is near 70~90 DEG C of the temperature of PVC complex layered materials, reusing multiple chill rolls that the PU/PVC after foaming is complex layered
The near room temperature of the temperature of material.The number of the preferred chill roll is 5, and the diameter of the chill roll is 450mm.Using cold
Extension set and chill roll cooperation cooling mode the PU/PVC complex layered materials after foaming can be quickly down to room temperature, convenient for into
The subsequent trimming of row is cut out, and is conducive to improve working efficiency.
Embodiment 1
100 parts of PVC, 2.5 parts of stabilizers and 85 parts of plasticizer are sequentially added in container first, after stirring 30s, then
40 parts of fillers, 3 parts of modified foaming agents and 0.5 part of toner are sequentially added into the container, are stirred evenly, are obtained after mixing
PVC slurry；Later, the PVC slurry is coated in PU layers of the base fabric using knife coating, it is complex layered obtains PU/PVC
Material；The PU/PVC complex layered materials are placed in foaming furnace with the speed of 8m/min afterwards be in 4 length 6m hair
It is moved in bubble section, the temperature of 4 foaming sections is respectively 180 DEG C, 220 DEG C, 180 DEG C, 150 DEG C；It embosses, is sent out after foaming
PU/PVC complex layered materials after bubble；Finally, the temperature of the PU/PVC complex layered materials after foaming is dropped using air-cooler
To 70 DEG C, the PU/PVC complex layered materials after the foaming are being down to room temperature using 5 chill rolls, then carry out trimming, cut
It cuts out, obtains the compound Yoga mat of PU/PVC of binder free.
Embodiment 2
100 parts of PVC, 1.5 parts of stabilizers and 90 parts of plasticizer are sequentially added in container first, after stirring 20s, then
55 parts of fillers, 5 parts of modified foaming agents and 0.8 part of toner are sequentially added into the container, are stirred evenly, are obtained after mixing
PVC slurry；Later, the PVC slurry is coated in PU layers of the base fabric using knife coating, it is complex layered obtains PU/PVC
Material；The PU/PVC complex layered materials are placed in foaming furnace with the speed of 12m/min afterwards be in 4 length 6m hair
It is moved in bubble section, the temperature of 4 foaming sections is respectively 190 DEG C, 225 DEG C, 190 DEG C, 160 DEG C；It embosses, is sent out after foaming
PU/PVC complex layered materials after bubble；Finally, the temperature of the PU/PVC complex layered materials after foaming is dropped using air-cooler
To 80 DEG C, the PU/PVC complex layered materials after the foaming are being down to room temperature using 5 chill rolls, then carry out trimming, cut
It cuts out, obtains the compound Yoga mat of PU/PVC of binder free.
Embodiment 3
100 parts of PVC, 3 parts of stabilizers and 90 parts of plasticizer are sequentially added in container first, after stirring 50s, then to
60 parts of fillers, 7 parts of modified foaming agents and 1.0 parts of toners are sequentially added in the container, are stirred evenly after mixing, are obtained PVC
Slurry；Later, the PVC slurry is coated in PU layers of the base fabric using knife coating, obtains the complex layered material of PU/PVC
Material；The PU/PVC complex layered materials are placed in foaming furnace with the speed of 10m/min afterwards be in 4 length 6m foaming
It is moved in section, the temperature of 4 foaming sections is respectively 200 DEG C, 230 DEG C, 200 DEG C, 160 DEG C；It embosses, is foamed after foaming
PU/PVC complex layered materials afterwards；Finally, the temperature of the PU/PVC complex layered materials after foaming is down to using air-cooler
90 DEG C, the PU/PVC complex layered materials after the foaming are being down to room temperature using 5 chill rolls, then carry out trimming, cut out,
Obtain the compound Yoga mat of PU/PVC of binder free.
Table one is using GB/T 3923.1-2013 method to the PU/ of commercially available Yoga mat and binder free prepared by the present invention
The comparison sheet of the compound Yoga mat tensile property testing result of PVC:
Table one
Table two is the compound Yoga mat wearability of PU/PVC to commercially available Yoga mat and binder free prepared by the present invention
The comparison sheet of (ASTM-D4966 method) and skid resistance (ASTM-F609 method) testing result:
Table two
As can be seen from Table I, the compound Yoga mat of the PU/PVC of binder free prepared by the present invention, tensile strength, tearing
Intensity and the compound national standard of break-draw rate and be better than commercially available Yoga mat；As can be seen from Table II, prepared by the present invention
Binder free the compound Yoga mat of PU/PVC friction 100 times after, it is no abrasion or mild wear, wearability it is good；Meanwhile it quiet rubbing
Coefficient is wiped up to 0.6, skid resistance is good, and skid resistance and wearability are superior to commercially available Yoga mat, and safety and environmental protection, is conducive to just into one
The popularization and application of step.
In conclusion the single side purchased covers base the invention discloses a kind of compound Yoga mat of the PU/PVC of binder free
The PU raw material of cloth, every Testing index is superior to national standard, and the raw material low toxicity that layer of PVC uses is harmless, and the two is compound
Any binder is not used in the process, and Yoga greatly improved under the premise of guaranteeing Yoga mat usage comfort in safety and environmental protection
The wear-resisting of pad, scratch resistance and non-skid property.Meanwhile preparation process is simple, and it is at low cost, be conducive to further explore world market.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (4)
1. a kind of preparation method of the compound Yoga mat of the PU/PVC of binder free, which is characterized in that comprising steps of
A, PVC, stabilizer and plasticizer are sequentially added in container, after stirring 20 ~ 50s, then is sequentially added into the container
Filler, modified foaming agent and toner stir evenly after mixing, obtain PVC slurry；
B, the PVC slurry is coated in PU layers of the base fabric, obtains PU/PVC complex layered materials；
C, the PU/PVC complex layered materials are placed in foaming furnace after being foamed and are embossed, the PU/PVC after being foamed
Complex layered materials；
D, the PU/PVC complex layered materials after the foaming are down to by room temperature using air-cooler and chill roll, then carry out trimming,
It cuts out, obtains the compound Yoga mat of PU/PVC of binder free；
In the step A, the viscosity of the PVC slurry is 80000 ~ 120000cps；
In the step B, coated in the PVC slurry penetration in the PU layers of base fabric to PU layers of base fabric, make PU layers with
PVC layers are combined into an entirety；
It include the foaming section that 4 length are 6m, the blowing temperature of 4 foaming section in the step C, in foaming furnace
It is followed successively by 180 ~ 200 DEG C, 220 ~ 230 DEG C, 180 ~ 200 DEG C, 150 ~ 160 DEG C；
Wherein, the Yoga mat includes the PU layer of PVC layers and single side covering base fabric, PVC layers described, according to the mass fraction, packet
It includes:
100 parts of PVC；
80 ~ 90 parts of plasticizer；
40 ~ 60 parts of filler；
3 ~ 7 parts of modified foaming agent；
1.5 ~ 3 parts of stabilizer；
0.5 ~ 1 part of toner；
5 ~ 10 parts of liquid nitrile rubber；
The plasticizer is dibutyl terephthalate；
The filler is calcium carbonate, and the modified foaming agent is azodicarbonamide, and the stabilizer is potassium zinc stabilizer.
2. the preparation method of the compound Yoga mat of PU/PVC of the binder free according to claim 1, which is characterized in that institute
Stating PU thickness degree d1 is 0.2 ~ 0.5mm, and the PVC thickness degree d2 is 3.8 ~ 7.8mm.
3. the preparation method of the compound Yoga mat of the PU/PVC of binder free according to claim 1, which is characterized in that institute
It states in step C, the speed of movement of the PU/PVC complex layered materials in foaming furnace is 8 ~ 12m/min, foaming furnace
Air inlet mode is to enter the wind up and down.
4. the preparation method of the compound Yoga mat of the PU/PVC of binder free according to claim 1, which is characterized in that institute
It states in step D, the PU/PVC complex layered materials temperature after the foaming is down to 70 ~ 90 DEG C by air-cooler, of chill roll
Number is multiple.
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| CN107501800A (en) * | 2017-09-15 | 2017-12-22 | 江苏攸途健身器材有限公司 | A kind of Novel yoga mat |
| CN108543263A (en) * | 2018-03-20 | 2018-09-18 | 湖州冠美科技有限公司 | A kind of production technology of thermal transfer Yoga mat |
| CN109621283B (en) * | 2019-01-24 | 2020-08-04 | 江苏谦胜合成材料有限公司 | Method for manufacturing yoga mat |
| CN109732937B (en) * | 2019-01-24 | 2020-10-30 | 江苏谦胜合成材料有限公司 | Method for manufacturing anti-fatigue ground mat |
| CN111155326B (en) * | 2020-01-14 | 2023-04-21 | 广东远华新材料股份有限公司 | Suede-nap composite PVC pad and preparation method thereof |
| CN111361080A (en) * | 2020-03-17 | 2020-07-03 | 杭州朗群家居有限公司 | Three-dimensional printing process for yoga mat |
| CN111732857A (en) * | 2020-07-09 | 2020-10-02 | 浙江善力高科新材料有限公司 | SEFoamtex material formula |
| CN112832036A (en) * | 2020-12-09 | 2021-05-25 | 江西伟群塑胶有限公司 | Adhesive-free PUPVC composite yoga mat and preparation method thereof |
| CN113152109A (en) * | 2020-12-09 | 2021-07-23 | 江西伟群塑胶有限公司 | PVC suede nap without adhesive and preparation method thereof |
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| US20100173124A1 (en) * | 2009-01-08 | 2010-07-08 | Kun-Chung Liu | Exercise mat and method for manufacturing the same |
| AU2012201690A1 (en) * | 2011-03-24 | 2012-10-11 | Lululemon Athletica Canada Inc. | Exercise mat |
| EP2797749A4 (en) * | 2011-12-28 | 2015-06-24 | Lululemon Athletica Canada Inc | Exercise mat |
| CN103351489A (en) * | 2013-05-31 | 2013-10-16 | 洛阳哈他网络科技有限公司 | Preparation method of nitrile butadiene rubber yoga mat |
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