CN114196136B - PVC yoga mat and preparation method thereof - Google Patents
PVC yoga mat and preparation method thereof Download PDFInfo
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- CN114196136B CN114196136B CN202111610004.8A CN202111610004A CN114196136B CN 114196136 B CN114196136 B CN 114196136B CN 202111610004 A CN202111610004 A CN 202111610004A CN 114196136 B CN114196136 B CN 114196136B
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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
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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
- A63B6/00—Mats or the like for absorbing shocks for jumping, gymnastics or the like
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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
- C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
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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
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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
- 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
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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
- C08J2427/00—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
- C08J2427/02—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
- C08J2427/04—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
- C08J2427/06—Homopolymers or copolymers of vinyl chloride
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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
- C08J2451/00—Characterised by the use of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
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- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses a PVC yoga mat and a preparation method thereof, wherein the PVC yoga mat is prepared from the following raw materials in parts by weight: 30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 30-70 parts of filler, 10-50 parts of vinyl chloride-acrylate graft copolymer, 2-15 parts of porous PVC, 80-120 parts of plasticizer, 2-8 parts of foaming agent and 1-4 parts of stabilizer. The PVC yoga mat adopts the recyclable PVC paste resin material, has good environmental protection performance, can increase the resilience elasticity by adding the high-polymerization degree paste resin and the vinyl chloride-acrylate graft copolymer, and can reduce the precipitation of the plasticizer by adopting the porous PVC, thereby further enhancing the flexibility and the resilience of the PVC yoga mat. The PVC yoga mat provided by the invention has high resilience, high wear resistance, high flexibility, and lasting resilience and flexibility, meets EN71-3 and CA65 environmental protection standards, and meets national green development requirements.
Description
Technical Field
The invention relates to the field of fitness equipment, in particular to a PVC yoga mat and a preparation method thereof.
Background
In the modern society, yoga exercise becomes one of fashion exercises, and the yoga exercise for a long time can prevent diseases, effectively regulate the nervous system and the endocrine system and improve the health of human bodies. What is essential when doing yoga motion is the yoga mat, and the yoga mat can effectively reduce the pain sense of human and ground contact, and the yoga mat still should possess better non-skid property, toughness and mechanical properties except should having characteristics such as softness and good resilience. At present, yoga mat's material generally divide into rubber foaming, TPE foaming, PVC foaming, EVA, latex pad, NBR mat etc. but rubber is unrecoverable and the feature of environmental protection is not strong, and people just throw the eyesight to the PVC material, and the yoga mat who is formed by PVC material processing now mainly mixes by fillers such as PVC, plasticizer, foamer and calcium carbonate, through the net of hanging and the shaping of heating foaming. However, the PVC material has large brittleness and poor mechanical properties, particularly, the resilience is not good, in order to improve the brittleness of the PVC material, the brittleness can be improved by adding a plasticizer such as DOP, but the resilience of the yoga mat is still poor, and the plasticizer is precipitated as the service time is prolonged, so that the properties such as the flexibility and the resilience of the yoga mat are reduced, and the mechanical properties are deteriorated.
Accordingly, the prior art is yet to be improved and developed.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide a PVC yoga mat and a preparation method thereof, and aims to solve the problems that the plasticizer of the conventional yoga mat is easy to separate out and has poor resilience.
The technical scheme of the invention is as follows:
the invention provides a PVC yoga mat, wherein the PVC yoga mat is prepared from the following raw materials in parts by weight:
30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 30-70 parts of filler, 10-50 parts of vinyl chloride-acrylate graft copolymer, 2-15 parts of porous PVC, 80-120 parts of plasticizer, 2-8 parts of foaming agent and 1-4 parts of stabilizer.
Optionally, the PVC yoga mat is made of raw materials including the following components:
40-60 parts of PVC paste resin, 10-30 parts of high-polymerization-degree PVC paste resin, 30-50 parts of filler, 10-30 parts of vinyl chloride-acrylate graft copolymer, 5-10 parts of porous PVC, 80-100 parts of plasticizer, 3-6 parts of foaming agent and 2-3 parts of stabilizer.
Optionally, the PVC paste resin has an average degree of polymerization of 850-1000.
Optionally, the high polymerization degree PVC paste resin has an average polymerization degree of 1800 to 2000.
Optionally, the filler is selected from at least one of heavy calcium carbonate, talc, magnesium sulfate.
Optionally, the plasticizer is selected from at least one of dioctyl terephthalate, dibutyl phthalate, diisobutyl phthalate, butyl benzyl phthalate, cresyl diphenyl phosphate, butyl epoxy fatty acid ester, and octyl epoxy fatty acid ester.
Optionally, the blowing agent is selected from azodicarbonamide.
Optionally, the stabilizer is selected from potassium zinc stabilizers.
The invention provides a preparation method of a PVC yoga mat, which comprises the following steps in parts by weight:
mixing 30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 10-50 parts of vinyl chloride-acrylate copolymer, 2-15 parts of porous PVC and 30-70 parts of filler to obtain mixed powder;
adding 2-8 parts of foaming agent into an equivalent amount of plasticizer, and stirring to obtain a mixed solution;
taking 72-118 parts of plasticizer, mixing the plasticizer with 1-4 parts of stabilizer, adding the mixed powder, stirring, adding the mixed solution, and continuously stirring to obtain mixed slurry;
coating the mixed slurry on cotton-like flannelette, and then foaming and molding to obtain a first foaming pad;
embossing the first foaming pad to obtain a second foaming pad;
and printing the required pattern on the second foaming mat, then coating waterborne polyurethane, and drying to obtain the PVC yoga mat.
Optionally, the temperature of the foaming is 210-230 ℃.
Has the beneficial effects that: the invention provides a PVC yoga mat and a preparation method thereof, wherein the PVC paste resin material is recyclable and has good environmental protection property, the resilience can be increased by adding high-polymerization-degree PVC paste resin and vinyl chloride-acrylate graft copolymer, and meanwhile, the porous PVC is adopted to reduce the precipitation of plasticizer and further enhance the flexibility and resilience of the PVC yoga mat. The PVC yoga mat provided by the invention has high resilience, high wear resistance, high flexibility, and lasting resilience and flexibility, meets EN71-3 and CA65 environmental protection standards, and meets national green development requirements.
Drawings
Fig. 1 is a flow chart illustrating the preparation of the PVC yoga mat according to embodiment 1 of the present invention.
Detailed Description
The invention provides a PVC yoga mat and a preparation method thereof, and the invention is further described in detail below in order to make the purpose, technical scheme and effect of the invention clearer and more clear. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention provides a PVC yoga mat, wherein the PVC yoga mat is prepared from the following raw materials in parts by weight:
30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 30-70 parts of filler, 10-50 parts of vinyl chloride-acrylate graft copolymer, 2-15 parts of porous PVC, 80-120 parts of plasticizer, 2-8 parts of foaming agent and 1-4 parts of stabilizer.
In the embodiment, the high-polymerization-degree PVC paste resin has the advantages of high strength, good resilience, small compression permanent deformation, weather resistance, aging resistance, fatigue resistance, wear resistance, small creep property and the like, and is matched with the high-polymerization-degree PVC paste resin and the vinyl chloride-acrylate copolymer for use, because the molecular chain of the high-polymerization-degree PVC paste resin is relatively long, the intermolecular winding is more in the forming process, the high-polymerization-degree PVC paste resin can form a whole on a remote structure, the elastic deformation is easier to recover when the external force is applied, and the elasticity is increased in macroscopic representation, the high-polymerization-degree PVC paste resin can enhance the resilience of the PVC yoga mat; due to the fact that hydrogen bonds are formed among PVC molecules, intermolecular force is large, the PVC decomposition temperature is lower than the melting temperature, the rigidity is large, a stabilizer needs to be added in the PVC production process, and after vinyl chloride grafted acrylate forms a copolymer, the intermolecular force of PVC can be reduced, the rigidity of PVC molecules is further reduced, and the elasticity is increased, so that the resilience of the PVC yoga mat can be further enhanced by adding the vinyl chloride-acrylate grafted copolymer in parts by weight; in ordinary yoga mat, the plasticizer is easily appeared, mainly include two steps, the first step is that the plasticizer migrates to the outermost molecular chain of material by in the system, the second step is that the plasticizer migrates outside the molecule by outermost molecular chain (the macroscopic surface has oil for the surface), because porous PVC absorbs the plasticizer easily, stabilize the plasticizer in inside, reduce the outward migration of plasticizer, remote structure is last, porous PVC molecular gap is great, the plasticizer gets into easily, consequently, the reducible plasticizer of the porous PVC of adding above-mentioned weight outwards migrates, effective control is appeared of plasticizer, further strengthen the resilience of PVC yoga mat, avoid along with the increase of live time, the problem that the plasticizer appeared from the yoga mat. Utilize the foaming agent to foam, reduction in production cost increases the pliability of PVC yoga mat, makes it difficult fracture. The stuffing can increase the volume of the PVC yoga mat, reduce the production cost and improve the processing performance of the PVC paste resin. The plasticizer is added in parts by weight, so that the flexibility and the elongation at break of the PVC yoga mat can be increased.
The PVC yoga mat prepared from the raw material components and the mixture ratio has high resilience, high wear resistance, high flexibility and durable resilience and flexibility, passes EN71-3 and CA65 environmental tests, and meets the national green development requirements.
In one embodiment, the PVC yoga mat is made from raw materials comprising:
40-60 parts of PVC paste resin, 10-30 parts of high-polymerization-degree PVC paste resin, 30-50 parts of filler, 10-30 parts of vinyl chloride-acrylate graft copolymer, 5-10 parts of porous PVC, 80-100 parts of plasticizer, 3-6 parts of foaming agent and 2-3 parts of stabilizer.
In one embodiment, the PVC paste resin has an average degree of polymerization of 850 to 1000.
In practice, the PVC paste resin may be selected from 1311, but is not limited thereto.
In one embodiment, the high polymerization degree PVC paste resin has an average polymerization degree of 1800 to 2000. So as to ensure longer molecular chain of the PVC paste resin with high polymerization degree and form more entwining among molecules in the forming process.
In practice, the high polymerization degree PVC paste resin may be selected from P-80, but is not limited thereto.
In one embodiment, the mass ratio of vinyl chloride to acrylate used to prepare the vinyl chloride-acrylate copolymer is 1:1.
In practice, the vinyl chloride-acrylate copolymer may be selected from VK-710, but is not limited thereto.
In practice, the porous PVC may be selected from S100, but is not limited thereto.
In one embodiment, the filler is selected from at least one of heavy calcium carbonate, talc, magnesium sulfate. The filler plays a role in filling the PVC yoga mat, increases the volume of the PVC yoga mat, and plays a great role in the size stability of the PVC yoga mat. Preferably, the filler is heavy calcium carbonate, and the heavy calcium carbonate has the characteristics of high whiteness, good purity, soft color, stable chemical components and the like. More preferably, the heavy calcium is 1250 mesh heavy calcium.
In one embodiment, the plasticizer is selected from at least one of dioctyl terephthalate, dibutyl phthalate, diisobutyl phthalate, butyl benzyl phthalate, cresyl diphenyl phosphate, epoxy fatty acid butyl ester, epoxy fatty acid octyl ester, but is not limited thereto. Preferably, the plasticizer is dioctyl terephthalate, which is less toxic. According to the invention, the research shows that the using amount of the dioctyl terephthalate is 80-120 parts, so that the dioctyl terephthalate can be matched with other components to obtain a good plasticizing effect, the flexibility and the elongation at break of the PVC yoga mat can be increased, and the influence on the human health can be avoided.
In one embodiment, the blowing agent is selected from azodicarbonamide, but is not limited thereto.
The azodicarbonamide is white or faint yellow powder, is nontoxic, is not easy to burn, has self-extinguishing property, and can improve the elasticity, strength and cell uniformity of the PVC yoga mat.
In one embodiment, the stabilizer is selected from potassium zinc stabilizers, and in the case of specific examples, the potassium zinc stabilizer may be selected from 3031 stabilizers, but is not limited thereto. The potassium-zinc stabilizer is an efficient, nontoxic and pollution-free PVC heat stabilizer, has good compatibility with PVC, can effectively avoid the decomposition of PVC, further ensures that the PVC yoga mat is not easy to degrade, and has stable properties.
The embodiment of the invention also provides a preparation method of the PVC yoga mat, which comprises the following steps in parts by weight as shown in figure 1:
s1, mixing 30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 10-50 parts of vinyl chloride-acrylate copolymer, 2-15 parts of porous PVC and 30-70 parts of filler to obtain mixed powder;
s2, adding 2-8 parts of foaming agent into an equivalent amount of plasticizer, and stirring to obtain a mixed solution;
s3, additionally taking 72-118 parts of plasticizer, mixing the plasticizer with 1-4 parts of stabilizer, adding the mixed powder, stirring, adding the mixed solution, and continuously stirring to obtain mixed slurry;
s4, coating the mixed slurry on cotton-like flannelette, and then foaming and molding to obtain a first foaming pad;
s5, embossing the first foaming pad to obtain a second foaming pad;
and S6, printing the required pattern on the second foam mat, then coating the second foam mat with waterborne polyurethane, and drying to obtain the PVC yoga mat.
The preparation method of the PVC yoga mat provided by the embodiment of the invention is relatively simple, the process can uniformly mix all the components, the mixed slurry is free of agglomeration and stable in property, and the PVC yoga mat with high resilience, high wear resistance and high flexibility can be prepared.
In step S1, uniformly mixing powder materials such as PVC paste resin, high-polymerization-degree PVC paste resin, vinyl chloride-acrylate copolymer, porous PVC, filler and the like to obtain mixed powder materials.
In one embodiment, the PVC paste resin has an average degree of polymerization of 850 to 1000.
In one embodiment, the high polymerization degree PVC paste resin has an average polymerization degree of 1800 to 2000.
In one embodiment, the filler is selected from at least one of heavy calcium carbonate, talc, magnesium sulfate, but is not limited thereto.
In step S2, a foaming agent is added to an equal amount of a plasticizer to prepare a mixed solution.
In one embodiment, the blowing agent is selected from azodicarbonamide, but is not limited thereto.
In one embodiment, the plasticizer is selected from at least one of dioctyl terephthalate, dibutyl phthalate, diisobutyl phthalate, butyl benzyl phthalate, cresyl diphenyl phosphate, epoxy fatty acid butyl ester, epoxy fatty acid octyl ester, but is not limited thereto.
In step S3, the mixed powder prepared in step S1 is added to the mixed solution of the plasticizer and the stabilizer, and then the mixed solution prepared in step S2 is added to mix uniformly, so that a mixed slurry with uniform and stable properties can be obtained, but the method is not limited thereto.
In one embodiment, the stabilizer is selected from the group consisting of potassium zinc stabilizers, but is not limited thereto.
In step S4, in one embodiment, the foaming temperature is 210-230 ℃, at which temperature the foaming agent decomposes to produce gas, the gas concentration in the mixed resin rapidly increases, and finally the required supersaturated state is achieved, and the gas phase precipitates to form bubbles, and the bubbles are uniformly distributed in the mixed resin to form the first foam pad.
In the step S5, the embossing has the effect of increasing the friction force when the PVC yoga mat is contacted with the ground, and preventing the user from being injured due to the sliding of the PVC yoga mat.
In step S6, the texture and the rubbing color fastness of the surface effect of the pattern meet the requirements.
The detailed steps of the preparation method of the PVC yoga mat are introduced below.
S11, mixing 30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 10-50 parts of vinyl chloride-acrylate copolymer, 2-15 parts of porous PVC and 30-70 parts of filler, and stirring in a stirrer for 3-5min to obtain mixed powder;
s21, adding 2-8 parts of foaming agent into an equivalent amount of plasticizer, and stirring in a stirrer for 1-3 hours to obtain a mixed solution;
s31, mixing 72-118 parts of plasticizer with 1-4 parts of stabilizer, stirring in a stirrer, slowly adding the mixed powder under stirring, continuously stirring until the temperature reaches 60-70 ℃, adding the mixed solution, and continuously stirring for 3-5min to obtain mixed slurry;
s41, at 1500g/m 2 The mixed slurry is coated on the surface with wool of the cotton flannelette, and enters a furnace body at the speed of 6-8m/min for foaming at the temperature of 210-230 ℃, and a first foaming pad with the thickness of 6mm is obtained after forming;
s51, embossing the rubber surface of the first foaming pad into round dots through an embossing roller to obtain a second foaming pad;
and S61, printing patterns on the second foam mat by an automatic inkjet printer, then coating waterborne polyurethane, and drying at 110-130 ℃ to obtain the PVC yoga mat.
The invention is further illustrated by the following specific examples.
In the following examples, 1311 is the grade of PVC paste resin, P-80 is the grade of high polymerization degree PVC paste resin, VK-710 is the grade of vinyl chloride-acrylate copolymer, S100 is the grade of porous PVC, and 3031 is the grade of potassium zinc stabilizer.
Example 1
Mixing 80 parts of 1311 (PVC paste resin), 50 parts of P-80 (high-polymerization-degree PVC paste resin), 50 parts of VK-710 (vinyl chloride-acrylate copolymer), 15 parts of S100 (porous PVC) and 70 parts of 1250-mesh heavy calcium, and stirring in a stirrer for 3min to obtain mixed powder;
adding 8 parts of azodicarbonamide into the same amount of dioctyl terephthalate, and stirring for 3 hours in a stirrer to obtain a mixed solution;
taking 112 parts of dioctyl terephthalate, mixing the dioctyl terephthalate with 4 parts of 3031 (a potassium zinc stabilizer), stirring in a stirrer, slowly adding the mixed powder under the stirring state, continuing stirring, adding the mixed solution after reaching 64 ℃, and continuing stirring for 3min to obtain mixed slurry;
at 1500g/m 2 The mixed slurry is coated on the surface with wool of the cotton flannelette, and enters a furnace body at the speed of 6m/min for foaming at the temperature of 230 ℃, and a first foaming pad with the thickness of 6mm is obtained after forming;
the first foaming pad is embossed into round dot patterns on the rubber surface through an embossing roller to obtain a second foaming pad;
and printing patterns on the second foam mat by using an automatic inkjet printer, then coating waterborne polyurethane, and drying at 120 ℃ to obtain the PVC yoga mat.
Example 2
Mixing 1311 (PVC paste resin) 30 parts, P-80 (high-polymerization-degree PVC paste resin) 10 parts, VK-710 (vinyl chloride-acrylate copolymer) 10 parts, S100 (porous PVC) 2 parts and 1250-mesh calcium bicarbonate 30 parts, and stirring in a stirrer for 3min to obtain mixed powder;
adding 2 parts of azodicarbonamide into the same amount of dioctyl terephthalate, and stirring in a stirrer for 1h to obtain a mixed solution;
taking 78 parts of dioctyl terephthalate, mixing the dioctyl terephthalate with 1 part of 3031 (a potassium zinc stabilizer), stirring in a stirrer, slowly adding the mixed powder under the stirring state, continuing stirring, adding the mixed solution after reaching 64 ℃, and continuing stirring for 3min to obtain mixed slurry;
at 1500g/m 2 Coating the mixed slurry on a wool-like surface of cotton flannelette, foaming in a furnace body at the speed of 8m/min at the temperature of 210 ℃, and forming to obtain a first foaming pad with the thickness of 6 mm;
the first foaming pad is embossed into round dot patterns on the rubber surface through an embossing roller to obtain a second foaming pad;
and printing patterns on the second foaming mat by using an automatic inkjet printer, then coating the second foaming mat with waterborne polyurethane, and drying at 120 ℃ to obtain the PVC yoga mat.
Example 3
Mixing 1311 (PVC paste resin) 50 parts, P-80 (high-polymerization-degree PVC paste resin) 30 parts, VK-710 (vinyl chloride-acrylate copolymer) 30 parts, S100 (porous PVC) 18 parts and 1250-mesh heavy calcium 50 parts, and stirring in a stirrer for 3min to obtain mixed powder;
adding 5 parts of foaming agent into the same amount of dioctyl terephthalate, and stirring for 1h in a stirrer to obtain a mixed solution;
taking another 110 parts of dioctyl terephthalate, mixing the dioctyl terephthalate with 3 parts of 3031 (a potassium zinc stabilizer), stirring in a stirrer, slowly adding the mixed powder under the stirring state, continuing stirring, adding the mixed solution after reaching 64 ℃, and continuing stirring for 3min to obtain mixed slurry;
at 1500g/m 2 The mixed slurry is coated on the imitation leatherAllowing the cotton flannel with wool to enter a furnace body at a speed of 7m/min for foaming at 220 ℃, and forming to obtain a first foaming pad with the thickness of 6 mm;
the first foaming pad is embossed into round dot patterns on the rubber surface through an embossing roller to obtain a second foaming pad;
and printing patterns on the second foaming mat by using an automatic inkjet printer, then coating the second foaming mat with waterborne polyurethane, and drying at 120 ℃ to obtain the PVC yoga mat.
Example 4
Mixing 1311 (PVC paste resin) 60 parts, P-80 (high-polymerization-degree PVC paste resin) 30 parts, VK-710 (vinyl chloride-acrylate copolymer) 30 parts, S100 (porous PVC) 20 parts and 1250-mesh calcium bicarbonate 40 parts, and stirring in a stirrer for 3min to obtain mixed powder;
adding 6 parts of foaming agent into the same amount of dioctyl terephthalate, and stirring in a stirrer for 1h to obtain a mixed solution;
taking 94 parts of dioctyl terephthalate, mixing the dioctyl terephthalate with 3 parts of 3031 (a potassium zinc stabilizer), stirring in a stirrer, slowly adding the mixed powder under the stirring state, continuing stirring, adding the mixed solution after reaching 64 ℃, and continuing stirring for 3min to obtain mixed slurry;
at 1500g/m 2 Coating the mixed slurry on a fluffy surface of the cotton-like flannelette, foaming the mixture in a furnace body at the speed of 7m/min at the temperature of 220 ℃, and forming to obtain a first foaming pad with the thickness of 6 mm;
the first foaming pad is embossed into round dot patterns on the rubber surface through an embossing roller to obtain a second foaming pad;
and printing patterns on the second foam mat by using an automatic inkjet printer, then coating waterborne polyurethane, and drying at 120 ℃ to obtain the PVC yoga mat.
The PVC yoga mat of example 1 was subjected to a tensile load test, an elongation at break test, a tear load test, a peel load test, a surface color fastness test, and an environmental test, and the test results are shown in table 1.
TABLE 1 test results of PVC yoga mat
The PVC yoga mat prepared by the embodiment has excellent performance, can pass EN71-3 and CA65 environmental protection tests, and meets the national green development requirements.
The resilience test was performed on the PVC yoga mats of examples 1-4:
the PVC yoga mat is pressed by a weight of 5Kg for 2 seconds and then taken away, the PVC yoga mat can be restored to the original state within 2 seconds, and the PVC yoga mat prepared by the embodiment has good resilience.
The PVC yoga mat of the embodiments 1 to 4 used for one year can be kept to recover within 2 to 5 seconds after the rebound resilience test, which shows that the PVC yoga mat prepared by the embodiment can still keep the rebound resilience and reduce the pain of the contact between the body and the ground along with the lengthening of the use time.
In conclusion, the PVC yoga mat and the preparation method thereof provided by the invention have the advantages that the PVC paste resin material is recyclable, the environmental protection property is good, the resilience elasticity can be increased by adding the high-polymerization-degree PVC paste resin and the vinyl chloride-acrylate copolymer, and meanwhile, the porous PVC is adopted, so that the precipitation of the plasticizer can be reduced, and the flexibility and resilience of the PVC yoga mat are further enhanced. The PVC yoga mat provided by the invention has high resilience, high wear resistance, high flexibility, and lasting resilience and flexibility, meets EN71-3 and CA65 environmental protection standards, and meets national green development requirements.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.
Claims (4)
1. The PVC yoga mat is characterized in that the PVC yoga mat is made of the following raw materials in parts by weight:
30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 30-70 parts of filler, 10-50 parts of vinyl chloride-acrylate graft copolymer, 2-15 parts of porous PVC, 80-120 parts of plasticizer, 2-8 parts of foaming agent and 1-4 parts of stabilizer; the average polymerization degree of the PVC paste resin is 850-1000; the average polymerization degree of the high polymerization degree PVC paste resin is 1800-2000; the plasticizer is selected from dioctyl terephthalate; the foaming agent is selected from azodicarbonamide;
the preparation method of the PVC yoga mat comprises the following steps:
mixing 30-80 parts of PVC paste resin, 10-50 parts of high-polymerization-degree PVC paste resin, 10-50 parts of vinyl chloride-acrylate copolymer, 2-15 parts of porous PVC and 30-70 parts of filler to obtain mixed powder;
adding 2-8 parts of foaming agent into an equivalent amount of plasticizer, and stirring to obtain a mixed solution;
taking 72-118 parts of plasticizer, mixing the plasticizer with 1-4 parts of stabilizer, adding the mixed powder, stirring, adding the mixed solution, and continuously stirring to obtain mixed slurry;
coating the mixed slurry on cotton-like flannelette, and then foaming and molding to obtain a first foaming pad;
embossing the first foaming pad to obtain a second foaming pad;
printing a required pattern on the second foaming mat, then coating waterborne polyurethane, and drying to obtain the PVC yoga mat; the foaming temperature is 210-230 ℃.
2. The PVC yoga mat of claim 1, wherein the PVC yoga mat is made from raw materials comprising:
40-60 parts of PVC paste resin, 10-30 parts of high-polymerization-degree PVC paste resin, 30-50 parts of filler, 10-30 parts of vinyl chloride-acrylate graft copolymer, 5-10 parts of porous PVC, 80-100 parts of plasticizer, 3-6 parts of foaming agent and 2-3 parts of stabilizer.
3. The PVC yoga mat of claim 1 or 2, wherein the filler is selected from at least one of heavy calcium, talc and magnesium sulfate.
4. The PVC yoga mat of claim 1 or 2, wherein the stabilizer is selected from potassium zinc stabilizers.
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| CN202111610004.8A CN114196136B (en) | 2021-12-27 | 2021-12-27 | PVC yoga mat and preparation method thereof |
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| BR112015019105B1 (en) * | 2013-02-11 | 2021-05-11 | Vestolit Gmbh | method for producing a vinyl chloride graft copolymer, vinyl chloride graft copolymer, blend containing various vinyl chloride graft copolymers, article, and use of a vinyl chloride graft copolymer and a blend |
| CN106046627A (en) * | 2016-08-15 | 2016-10-26 | 东莞市悠悠美居家居制造有限公司 | Polyvinyl chloride massage pad and preparation method thereof |
| CN111155330B (en) * | 2020-01-14 | 2022-12-09 | 广东远华新材料股份有限公司 | Waterproof antiskid anti-fatigue pad and manufacturing process thereof |
| 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 |
| CN112140678A (en) * | 2020-09-30 | 2020-12-29 | 广东远华新材料股份有限公司 | Composite yoga mat and preparation method thereof |
| CN112552621B (en) * | 2020-12-28 | 2022-09-16 | 宜宾海丰和锐有限公司 | Wear-resistant and impact-resistant cable material and preparation method thereof |
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