CN108410080A - A kind of environment-friendly PVC edge sealing strip material and preparation method thereof of low VOC, low smell - Google Patents
A kind of environment-friendly PVC edge sealing strip material and preparation method thereof of low VOC, low smell Download PDFInfo
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- CN108410080A CN108410080A CN201810084221.XA CN201810084221A CN108410080A CN 108410080 A CN108410080 A CN 108410080A CN 201810084221 A CN201810084221 A CN 201810084221A CN 108410080 A CN108410080 A CN 108410080A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The present invention relates to PVC material technical fields,More particularly to a kind of low VOC,Environment-friendly PVC edge sealing strip material of low smell and preparation method thereof,First weigh 80~120 parts of polyvinyl chloride resin,3~6 parts of stabilizer inorganic carrier,0.5~1 part of main stabilizer,0.1~0.4 part of auxiliary stabilizer,7~12 parts of solid plasticizer,40~55 parts of filler,0.5~1.5 part of processing aid,0.2~0.7 part of in-lubricant,0.5~1.5 part of external lubricant,Then it is mixed granulation,This hair invention preparation method can guarantee PVC it is homogenous plasticized under the premise of,It is processed as possible with minimum temperature,Reduce the probability of PVC degradations,Small molecule generation is easily decomposed to reduce,And the issuable small-molecule substance of process is excluded clean,Obtained PVC edge sealing strip materials have low VOC,Low smell,The good advantage of intensity.
Description
Technical field
The present invention relates to PVC material technical fields, and in particular to a kind of low VOC, low smell environment-friendly PVC edge sealing strip material
And preparation method thereof.
Background technology
PVC is named as igelite entirely, has the characteristics that bright in colour, corrosion-resistant, firm and durable, PVC material are used as
When edge band, it is easy the processing of the surface modifications such as gluing, embossing, printing, and cheap, these advantages are that other plastics can not
Analogy, therefore, PVC edge bands are the maximum edge band kinds of dosage in furniture decoration, have a vast market foreground.
But PVC is a kind of fragile material, also more sensitive to heat, and plasticizer, steady is often increased during actual processing
Some auxiliary materials such as agent, lubricant are determined to enhance its heat resistance, toughness and ductility, these auxiliary materials are all much by low
The volatile material composition of fusing point is easy migration, extraction and volatilization, so that existing PVC edge sealing strip material smell is larger, and
VOC content is high, has bigger harmfulness to environment and health.And with the development of society, the environmental consciousness and health of people
Awareness of safety is continuously improved, and environmental requirement is higher and higher, so environment-friendly PVC edge sealing strip material of the exploitation with low VOC, low smell
It is extremely urgent.To solve the problems, such as that the smell and VOC of PVC edge sealing strip materials, traditional way are that addition smell inhibits in formula
Agent, the odor suppressing agents are mainly absorbent-type response type.For absorbent-type odor suppressing agents, absorption is a reversible process,
Especially under hot environment, there are the risks of parsing, so that absorbent-type odor suppressing agents cannot tackle the problem at its root.For anti-
Type odor suppressing agents are answered, PVC formula components are complicated, and raw materials used production technology is various, and PVC edge sealing strip materials is caused to volatilize
Ingredient type out is also more and unpredictable, is thus difficult to suitable reactant these volatile components whole
Reaction, moreover, response type odorant agent and reaction product, by-product may inherently have certain smell.
Invention content
For the prior art, there are above-mentioned technical problems, and it is an object of the present invention to provide a kind of environment-friendly PVC edge bands
The good PVC edge sealing strip materials of low VOC, low smell, intensity can be made in the preparation method of material, the preparation method.
One of for achieving the above object, following technical scheme is provided：
There is provided a kind of low VOC, low smell environment-friendly PVC edge sealing strip material preparation method, include the following steps,
(1) raw material of following parts by weight is weighed：
Wherein, the degree of polymerization of the polyvinyl chloride resin is 700~1300；
(2) formula ratio is pressed, by polyvinyl chloride resin, stabilizer inorganic carrier, main stabilizer, auxiliary stabilizer, processing aid, interior
Lubricant and external lubricant are stirred, and warming while stirring obtains the first uniformly mixed mixture to 95~110 DEG C；
(3) filler of the solid plasticizer and formula ratio of formula ratio is added to first mixture, 105~120
Continue to stir evenly at DEG C, obtains the second uniformly mixed mixture；
(4) by the second mixture discharging to cold mixer and stirring be cooled to 25~40 DEG C；
(5) screw pelletizer is added in the material of above-mentioned cooling treatment, then the extruding pelletization when vacuumizing, environmental protection is made
PVC edge sealing strip materials.
Wherein, in the step (5), vacuum pressure is 5~10MPa.
Wherein, the stabilizer inorganic carrier is in hydrotalcite, zeolite, calcium hydroxide, magnesium hydroxide and aluminium hydroxide
A kind of or arbitrary two or more mixture.
Wherein, the main stabilizer is made of calcium stearate and zinc stearate, the calcium stearate and the zinc stearate
Weight ratio be 1~5：1.
Wherein, the auxiliary stabilizer is dibenzoyl methane calcium, trisnonyl phenyl phosphite, diphosphorous acid bisphenol-A four
C12-15 esters, dipentaerythritol and one kind in four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters or
Arbitrary two or more mixture.
Wherein, the solid plasticizer be ethylene/methacrylic acid ester copolymer, ethylene/ethylacrylate copolymer,
In ethylene/butyl propyleneglycol acid ester copolymer, ethylene acid vinyl acetate/carbonyl copolymer, ethylene/butyl acrylate/carbonyl copolymer
One kind or arbitrary two or more mixture.
Wherein, the filler is in not surface treated precipitated calcium carbonate, not surface treated powdered whiting
One or two kinds of mixtures.
Wherein, the processing aid is methyl methacrylate/acrylic acid ester/styrol copolymer and acrylic acid modified poly-
The mixture of one or both of tetrafluoroethylene.
Wherein, the in-lubricant is the aliphatic ester of hydantoins glycol, the aliphatic ester of polyglyceryl ether, montanate
With in montanic acid soap one kind or arbitrary two or more mixture；The external lubricant be oxidized polyethylene wax, polyethylene wax,
One kind in polypropylene wax or arbitrary two or more mixture.
Wherein, the screw pelletizer is dual-screw pelletizer, the screw speed of the dual-screw pelletizer is 80~
Each area's temperature of 160r/min, the dual-screw pelletizer are set as：One 130~140 DEG C of area, 135~45 DEG C of 2nd area, 3rd area
140~150 DEG C, 145~155 DEG C of 4th area, 150~160 DEG C of 5th area, 155~165 DEG C of 6th area, 160~170 DEG C of 7th area, head
150~160 DEG C.
The second object of the present invention is to provide the PVC edge sealing strip materials of a kind of low VOC, low smell；
To realize the second purpose, the present invention also provides the PVC obtained by the preparation method of above-mentioned environment-friendly PVC edge sealing strip material
Edge sealing strip material.
Beneficial effects of the present invention：
(1) preparation method of environment-friendly PVC edge sealing strip material of the invention, PVC are thermosensitive plastics, and hair is easy in process
The decomposing phenomenons such as raw de- HCl, strengthen the stability of polyvinyl chloride resin by stabilizer inorganic carrier, main stabilizer and auxiliary stabilizer,
Even if the reaction so that polyvinyl chloride resin will not still decompose under the processing environment of high temperature, reduces the decomposition of volatile small molecule
It generates, and then reduces the discharge of VOC and smell.
(2) preparation method of a kind of environment-friendly PVC edge sealing strip material of the invention, since one end of in-lubricant is polar group
Group, the other end are nonpolar chain alkyls, and polar group can occur bonding action with the chlorine atom of PVC, mitigate PVC molecules
Active force between chain the phenomenon that avoid PVC strand internal friction heats, and increases the sliding capability of molecule interchain,
It reduces PVC melt viscosities and is further reduced the decomposition product of volatile small molecule to reduce PVC processing temperatures, and then reduce
The discharge of VOC and smell；And in-lubricant promotes PVC plastic, can improve the intensity of PVC.
(3) preparation method of a kind of environment-friendly PVC edge sealing strip material of the invention, since external lubricant reduces PVC polymerizations
Friction between object melt and process equipment metal improves the demolding performace of PVC melts, to mitigate PVC near metal equipment
The residence time of melt reduces the discharge of VOC and smell once again.
(4) preparation method of a kind of environment-friendly PVC edge sealing strip material of the invention, due to the degree of polymerization of polyvinyl chloride resin is 700~
1300, the degree of polymerization is moderate, prevents the excessively high caused extrusion frictional heat of the degree of polymerization from leading to the problem of low molecule decomposition product, and
The degree of polymerization meets the intensity of PVC so that PVC has preferable impact flexibility.
(5) preparation method of a kind of environment-friendly PVC edge sealing strip material of the invention, warm granulation is set using staged, it is ensured that
PVC plasticization is granulated compared under low processing temperature, to reduce the probability of PVC degradations as possible；Also, it is true using taking out in granulation process
Empty technique, the issuable small-molecule substance of process is excluded clean, and smell and volatile materials are solved from source
It generates.
(6) preparation method of a kind of environment-friendly PVC edge sealing strip material of the invention, with easily operated, production cost is low excellent
Point, and can be suitable for large-scale production the characteristics of.
Specific implementation mode
Below in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1.
The preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC, low smell in the present embodiment, including following step
Suddenly,
(1) raw material of following quality is weighed：Polyvinyl chloride resin 590g, stabilizer inorganic carrier 29g, main stabilizer 4g, auxiliary are steady
Determine agent 1g, solid plasticizer 59g, filler 30g, processing aid 6g, in-lubricant 3g, external lubricant 6g, it is actually pure
PVC macromolecules are no any smells, and the smell of polyvinyl chloride resin powder depends mainly on the size of the demonomerization after having polymerize, drying
Can equal post-processings remove volatile small-molecule substance such as the auxiliary raw material added in monomer and polymerization process, these are easily waved
The small-molecule substance smell of hair is bigger, by above-mentioned selected auxiliary material as it can be seen that the auxiliary material of the present embodiment is all high-melting-point,
The substance of low volatility reduces the possibility that volatile small molecule generates from material.And the polymerization of the PVC of the present embodiment
Degree is 700~1300, and the mass fraction of PVC volatile matters of its own is the smaller the better, to be further reduced VOC, smell
It generates, the mass fraction of the polyvinyl chloride resin of the present embodiment volatile matter of its own is 0%；In addition, the smell of each above raw material is surveyed
Examination reaches 3 grades (200g raw material are placed in the wide mouth glass bottle of 2.5L, 65 DEG C of * 2H, totally 6 grades of oder levels), further decreases
The generation of smell.
(2) formula ratio is pressed, above-mentioned polyvinyl chloride resin, stabilizer inorganic carrier, main stabilizer, auxiliary stabilizer, processing are helped
Agent, in-lubricant and external lubricant are stirred, and warming while stirring is to 95 DEG C, mixing speed 1500r/min, to ensure
PVC resin powder can adequately absorb in-lubricant, and PVC resin powder is made tentatively to be plasticized, and the flexible mixture of maturation is mixed
Close uniform first mixture.
(3) to first mixture be added formula ratio solid plasticizer and formula ratio filler, at 105 DEG C after
Continuous to stir evenly, mixing speed 800r/min obtains the second uniformly mixed mixture；The last reinforcing body plasticising of the present embodiment
Agent and filler are so that in-lubricant is played most in order to avoid solid plasticizer and filler compete in-lubricant with polyvinyl chloride resin
Big effect, while by control material temperature and mixing speed, come prevent that polyvinyl chloride resin is excessively plasticized and conglomeration influence it is subsequent
Granulation process.
(4) by the second mixture discharging to cold mixer and stirring be cooled to 25 DEG C, mixing speed 200r/min；This
Embodiment keeps mixture adequately cooling uniform, prevents PVC hot-spots and consume by controlling discharge temp and mixing speed
Stabilizer, otherwise PVC greatly increased in following process and the probability decomposed in.
(5) screw pelletizer is added in the material of above-mentioned cooling treatment, then the extruding pelletization when vacuumizing, environmental protection is made
PVC edge sealing strip materials.
In the present embodiment, the stabilizer inorganic carrier is hydrotalcite, zeolite, calcium hydroxide, magnesium hydroxide and hydroxide
One kind in aluminium or arbitrary two or more mixture, stabilizer inorganic carrier manufactures the environment of a weak base to PVC, in timely
With the HCl of degradation reaction production.
In the present embodiment, the main stabilizer is made of calcium stearate and zinc stearate, the calcium stearate with it is described hard
The weight ratio of resin acid zinc is 1~5：1, zinc stearate is a kind of initial stage type heat stabilizer, can effectively inhibit the discoloration of PVC, but
Zinc stearate reacts the ZnCl of production with HCl2It is serious to promote PVC degradations, cause material to black, i.e., zinc burns phenomenon, therefore long-term
Thermostable effect is poor, and calcium stearate belongs to the long time type heat stabilizer with plasticizing function, and exclusive use cannot effectively inhibit
The discoloration of PVC, therefore calcium stearate and zinc stearate are used cooperatively, the two has complementary performance well, can obtain very
The thermal stability at good initial stage, mid-term and later stage.
In the present embodiment, the auxiliary stabilizer is dibenzoyl methane calcium, trisnonyl phenyl phosphite, diphosphorous acid pair
Tetra- C of phenol A12-15One kind in ester, dipentaerythritol and four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters
Or arbitrary two or more mixture, the auxiliary stabilizer are all non-toxic and tasteless high-melting-point substances, will not be moved in PVC
Phenomena such as moving, being precipitated and volatilize.These substances are mainly to replace unstable chlorine atom, with Zn2+Equal metal ions form stable
Complex plays thermostable effect with the modes such as double bond addition, with stable agent carrier above-mentioned and main stabilizer and with having very
Good synergistic effect, can greatly improve the thermal stability of PVC.
In the present embodiment, the solid plasticizer is ethylene/methacrylic acid ester copolymer, ethylene/ethyl propylene acid esters
Copolymer, ethylene/butyl propyleneglycol acid ester copolymer, ethylene acid vinyl acetate/carbonyl copolymer, ethylene/butyl acrylate/carbonyl
One kind in copolymer or arbitrary two or more mixture, the acrylate and carbonyl in solid plasticizer selected by the present embodiment
Base is all polar group, has good compatibility with PVC, can be used as permanent plasticizer.And this kind of solid plasticising
Between glass transition temperature is generally at -30 DEG C to -60 DEG C, there is good cryogenic property, not only ensure the impact of PVC edge bands
The demand of toughness, while also promoting the plasticizing of PVC, melt viscosity is reduced, the processing temperature of PVC can be dragged down, greatly reduced
The probability that PVC is decomposed.
In the present embodiment, the filler is not surface treated precipitated calcium carbonate, not surface treated heavy carbon
The mixture of one or both of sour calcium.In order to improve calcium carbonate PVC loading and dispersibility, people be often used by
The calcium carbonate of surface treatment, but these surface conditioning agents are substantially stearic acid, silane coupling agent or titante coupling agent, all
It is some volatile lower-molecular substances, smell is big, therefore uses not surface treated calcium carbonate, can reduce volatile low point
Son.And since the present embodiment using copolymer makees plasticizer, polar group has good react with the surface group of calcium carbonate
Activity, therefore plasticizer this analog copolymer is also a kind of good solubilized coupling agent, can improve calcium carbonate filling proportion and point
Dissipate performance, it is sufficient to make up defect caused by non-surface treated calcium carbonate.
In the present embodiment, the processing aid is methyl methacrylate/acrylic acid ester/styrol copolymer and acrylic acid
The mixture of one or both of modified Teflon class.This two classes processing aid selected by the present embodiment is high molecular weight
The long-chain of acrylate copolymer, molecule forms pseudo- cross-linked state, to assign melting bullet by interweaving with the molecule of matrix resin
Property.This melting elasticity peomotes PVC plasticization and improves product appearance, it is ensured that PVC adds in very low temperatures
Work is molded, and without influencing product quality, PVC work in-processes is made not decompose substantially phenomenon.
In the present embodiment, the in-lubricant is the aliphatic ester, brown of the aliphatic ester of hydantoins glycol, polyglyceryl ether
Coal acid esters and one kind in montanic acid soap or arbitrary two or more mixture；The external lubricant is oxidized polyethylene wax, gathers
One kind in ethylene waxes, polypropylene wax or arbitrary two or more mixture.In-lubricant selected by the present embodiment all belongs to
High-temperature lubricant has higher thermal stability and lower volatility.For low VOC, the PVC edge sealing strip materials of low smell is made
Provide prerequisite.
In the present embodiment, the screw pelletizer is dual-screw pelletizer, and the screw speed of the dual-screw pelletizer is
Each area's temperature of 80r/min, the dual-screw pelletizer are set as：One 130 DEG C of area, 135 DEG C of 2nd area, 140 DEG C of 3rd area, 4th area
145 DEG C, 150 DEG C of 5th area, 155 DEG C of 6th area, 160 DEG C of 7th area, 150 DEG C of head.
In the present embodiment, in the step (5), vacuum pressure 5MPa, the present embodiment is by controlling each area of comminutor
Temperature and screw speed ensure reaction of not decomposing in the case of PVC plasticization is uniform, while using the stepped temperature in each area
Degree configuration and higher vacuum pressure, in favor of in granulation process can fertile small-molecule substance exclude totally.
The present embodiment is readily incorporated the big small-molecule substance of volatility, provides for the problem that PVC is because of formula components complexity
A kind of preparation method of low VOC, low smell environment-friendly PVC edge sealing strip material.By the smell for the raw material that are rigid in checking up, using solid
Body plasticizer and high-melting-point low volatility materials do formula materials.By adjusting formula, low temperature process and vacuum exhaust etc.
Set about, the probability that PVC processing is decomposed will be arrived minimum, the generation of solution smell from source.The present invention's is with obvious effects superior
In the method for solving PVC smells by adding odor suppressing agents.
Embodiment 2
The preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC, low smell in the present embodiment, including following step
Suddenly,
(1) raw material of following quality is weighed：Polyvinyl chloride resin 600g, stabilizer inorganic carrier 30g, main stabilizer 7g, auxiliary are steady
Determine agent 5g, solid plasticizer 48g, filler 38g, processing aid 7g, in-lubricant 7g, external lubricant 7g, wherein the PVC
The degree of polymerization of resin is 900~1100, and the volatile content of the polyvinyl chloride resin is 0.5%, in addition, each above raw material
Smell test up to 3 ranks.
(2) formula ratio is pressed, above-mentioned polyvinyl chloride resin, stabilizer inorganic carrier, main stabilizer, auxiliary stabilizer, processing are helped
Agent, in-lubricant and external lubricant are stirred, and warming while stirring, to 105 DEG C, mixing speed 2500r/min is obtained
The first uniformly mixed mixture；
(3) to first mixture be added formula ratio solid plasticizer and formula ratio filler, at 120 DEG C this
When second heat up, continue to stir evenly, mixing speed 1200r/min, obtain the second uniformly mixed mixture.
(4) by the second mixture discharging to cold mixer and stirring be cooled to 40 DEG C, mixing speed 600r/min.
(5) screw pelletizer is added in the material of above-mentioned cooling treatment, then the extruding pelletization when vacuumizing, environmental protection is made
PVC edge sealing strip materials.
In the present embodiment, the stabilizer inorganic carrier is hydrotalcite, can prevent the problem of making moist.
In the present embodiment, the main stabilizer is made of calcium stearate and zinc stearate, the calcium stearate with it is described hard
The weight ratio of resin acid zinc is 1.5：1.
In the present embodiment, the auxiliary stabilizer is dibenzoyl methane calcium and four [β-(3,5- di-t-butyl -4- hydroxyls
Phenyl) propionic acid] pentaerythritol ester compounding.
In the present embodiment, the solid plasticizer is ethylene/methacrylic acid ester copolymer, ethylene/ethyl propylene acid esters
The mixture of copolymer, ethylene/butyl propyleneglycol acid ester copolymer, ethylene acid vinyl acetate/carbonyl copolymer.
In the present embodiment, the filler is not surface treated precipitated calcium carbonate.
In the present embodiment, the processing aid is methyl methacrylate/acrylic acid ester/styrol copolymer.
In the present embodiment, the in-lubricant is the aliphatic ester and montanic acid that the in-lubricant is hydantoins glycol
The mixture of soap.
In the present embodiment, the screw pelletizer is dual-screw pelletizer, and the screw speed of the dual-screw pelletizer is
Each area's temperature of 160r/min, the dual-screw pelletizer are set as：One 140 DEG C of area, 145 DEG C of 2nd area, 150 DEG C of 3rd area, 4th area
155 DEG C, 160 DEG C of 5th area, 165 DEG C of 6th area, 170 DEG C of 7th area, 160 DEG C of head.
In the present embodiment, in the step (5), vacuum pressure 10MPa.
Embodiment 3.
The preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC, low smell in the present embodiment, including following step
Suddenly,
(1) raw material of following quality is weighed：Polyvinyl chloride resin 500g, stabilizer inorganic carrier 25g, main stabilizer 5g, auxiliary are steady
Determine agent 2g, solid plasticizer 60g, filler 20g, processing aid 3g, in-lubricant 4g, external lubricant 5g, wherein the PVC
The degree of polymerization of resin is 900~1000, and the volatile content of the polyvinyl chloride resin is 0.3%；In addition, each above raw material
Smell test up to 3 ranks.
(2) formula ratio is pressed, above-mentioned polyvinyl chloride resin, stabilizer inorganic carrier, main stabilizer, auxiliary stabilizer, processing are helped
Agent, in-lubricant and external lubricant are stirred, and warming while stirring, to 110 DEG C, mixing speed 2000r/min is obtained
The first uniformly mixed mixture；
(3) to first mixture be added formula ratio solid plasticizer and formula ratio filler, at 105 DEG C after
Continuous to stir evenly, mixing speed 1000r/min obtains the second uniformly mixed mixture.
(4) by the second mixture discharging to cold mixer and stirring be cooled to 30 DEG C, mixing speed 500r/min.
(5) screw pelletizer is added in the material of above-mentioned cooling treatment, then the extruding pelletization when vacuumizing, environmental protection is made
PVC edge sealing strip materials.
In the present embodiment, the stabilizer inorganic carrier is the mixing of hydrotalcite, zeolite, calcium hydroxide, magnesium hydroxide sum
Object.
In the present embodiment, the main stabilizer is made of calcium stearate and zinc stearate, the calcium stearate with it is described hard
The weight ratio of resin acid zinc is 5:1.
In the present embodiment, the auxiliary stabilizer is dibenzoyl methane calcium, trisnonyl phenyl phosphite, diphosphorous acid pair
Tetra- C of phenol A12-15The mixture of ester.
In the present embodiment, the solid plasticizer be ethylene acid vinyl acetate/carbonyl copolymer, ethylene/butyl acrylate/
The mixture of carbonyl copolymer.
In the present embodiment, the filler is not surface treated powdered whiting.
In the present embodiment, the processing aid is methyl methacrylate/acrylic acid ester/styrol copolymer and acrylic acid
The mixture of modified Teflon class.
In the present embodiment, the in-lubricant be the aliphatic ester of hydantoins glycol, polyglyceryl ether aliphatic ester and
Mixture in montanic acid soap.
In the present embodiment, the screw pelletizer is dual-screw pelletizer, and the screw speed of the dual-screw pelletizer is
Each area's temperature of 100r/min, the dual-screw pelletizer are set as：One 135 DEG C of area, 140 DEG C of 2nd area, 148 DEG C of 3rd area, 4th area
150 DEG C, 155 DEG C of 5th area, 160 DEG C of 6th area, 165 DEG C of 7th area, 155 DEG C of head.
In the present embodiment, in the step (5), vacuum pressure 8MPa.
Embodiment 4.
The preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC, low smell in the present embodiment, including following step
Suddenly,
(1) raw material of following quality is weighed：Polyvinyl chloride resin 490g, stabilizer inorganic carrier 30g, main stabilizer 6g, auxiliary are steady
Determine agent 2g, solid plasticizer 49g, filler 25g, processing aid 5g, in-lubricant 4g, external lubricant 5g, wherein the PVC
The degree of polymerization of resin is 800~1200, and the volatile content of the polyvinyl chloride resin is 0.4%, and volatile content is got over
It is small better；In addition, the smell of each above raw material is tested up to 3 ranks.
(2) formula ratio is pressed, above-mentioned polyvinyl chloride resin, stabilizer inorganic carrier, main stabilizer, auxiliary stabilizer, processing are helped
Agent, in-lubricant and external lubricant are stirred, and at this moment warming while stirring heats up for the first time to 100 DEG C, and mixing speed is
1800r/min obtains the first uniformly mixed mixture；
(3) to first mixture be added formula ratio solid plasticizer and formula ratio filler, at 110 DEG C this
When second heat up, continue to stir evenly, mixing speed 900r/min, obtain the second uniformly mixed mixture.
(4) by the second mixture discharging to cold mixer and stirring be cooled to 35 DEG C, mixing speed 500r/min, this
Shi Jiangwen processing.
(5) screw pelletizer is added in the material of above-mentioned cooling treatment, then the extruding pelletization when vacuumizing, environmental protection is made
PVC edge sealing strip materials.
In the present embodiment, the stabilizer inorganic carrier is the mixture in magnesium hydroxide and aluminium hydroxide.
In the present embodiment, the main stabilizer is made of calcium stearate and zinc stearate, the calcium stearate with it is described hard
The weight ratio of resin acid zinc is 3：1.
In the present embodiment, the auxiliary stabilizer is dibenzoyl methane calcium, trisnonyl phenyl phosphite, diphosphorous acid pair
Tetra- C of phenol A12-15The mixture of ester.
In the present embodiment, the solid plasticizer is ethylene/methacrylic acid ester copolymer, ethylene/butyl propyleneglycol acid esters
The mixture of copolymer, ethylene/butyl acrylate/carbonyl copolymer.
In the present embodiment, the filler is not surface treated precipitated calcium carbonate, not surface treated heavy carbon
The mixture of sour calcium.
In the present embodiment, the processing aid is acrylic acid modified polytetrafluoroethylene (PTFE).
In the present embodiment, the in-lubricant is polyglyceryl ether and its aliphatic ester and montanic acid series lubricant agent, esters profit
The mixture of lubrication prescription, soaps lubricant.The in-lubricant is the aliphatic acid of the aliphatic ester of hydantoins glycol, polyglyceryl ether
The mixture of ester and montanate.
In the present embodiment, the screw pelletizer is dual-screw pelletizer, and the screw speed of the dual-screw pelletizer is
Each area's temperature of 160r/min, the dual-screw pelletizer are set as：One 130 DEG C of area, 145 DEG C of 2nd area, 150 DEG C of 3rd area, 4th area
155 DEG C, 160 DEG C of 5th area, 165 DEG C of 6th area, 170 DEG C of 7th area, 160 DEG C of head.
In the present embodiment, in the step (5), vacuum pressure 7MPa.
Embodiment 5.
The preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC, low smell in the present embodiment, including following step
Suddenly,
(1) raw material of following quality is weighed：Polyvinyl chloride resin 700g, stabilizer inorganic carrier 40g, main stabilizer 3g, auxiliary are steady
Determine agent 2g, solid plasticizer 55g, filler 35g, processing aid 7g, in-lubricant 7g, external lubricant 7g, wherein the PVC
The degree of polymerization of resin is 700~1000；In addition, the smell of each above raw material is tested up to 3 ranks.
(2) formula ratio is pressed, above-mentioned polyvinyl chloride resin, stabilizer inorganic carrier, main stabilizer, auxiliary stabilizer, processing are helped
Agent, in-lubricant and external lubricant are stirred, and at this moment warming while stirring heats up for the first time to 100 DEG C, and mixing speed is
2000r/min obtains the first uniformly mixed mixture；
(3) to first mixture be added formula ratio solid plasticizer and formula ratio filler, at 110 DEG C after
Continuous to stir evenly, mixing speed 1100r/min obtains the second uniformly mixed mixture.
(4) by the second mixture discharging to cold mixer and stirring be cooled to 35 DEG C, mixing speed 500r/min, this
Shi Jiangwen processing.
(5) screw pelletizer is added in the material of above-mentioned cooling treatment, then the extruding pelletization when vacuumizing, environmental protection is made
PVC edge sealing strip materials.
In the present embodiment, the stabilizer inorganic carrier is the mixture of magnesium hydroxide and aluminium hydroxide.
In the present embodiment, the main stabilizer is made of calcium stearate and zinc stearate, the calcium stearate with it is described hard
The weight ratio of resin acid zinc is 2.5:1.
In the present embodiment, the auxiliary stabilizer is four C of diphosphorous acid bisphenol-A12-15Ester, dipentaerythritol and four [β-(3,
5- di-tert-butyl-hydroxy phenyls) propionic acid] pentaerythritol ester mixture.
In the present embodiment, the solid plasticizer is ethylene/butyl propyleneglycol acid ester copolymer, ethylene acid vinyl acetate/carbonyl
The mixture of copolymer, ethylene/butyl acrylate/carbonyl copolymer.
In the present embodiment, the filler is the mixture of not surface treated powdered whiting.
In the present embodiment, the processing aid is methyl methacrylate/acrylic acid ester/styrol copolymer.
In the present embodiment, the in-lubricant is the mixture of the aliphatic ester of polyglyceryl ether, montanate and montanic acid.
In the present embodiment, the screw pelletizer is dual-screw pelletizer, and the screw speed of the dual-screw pelletizer is
Each area's temperature of 120r/min, the dual-screw pelletizer are set as：One 132 DEG C of area, 135 DEG C of 2nd area, 145 DEG C of 3rd area, 4th area
150 DEG C, 155 DEG C of 5th area, 160 DEG C of 6th area, 165 DEG C of 7th area, 155 DEG C of head.
In the present embodiment, in the step (5), vacuum pressure 7MPa.
Performance test
Performance test below is carried out to the PVC edge sealing strip materials obtained by Examples 1 to 5, the specific test method is as follows：
Melt index：Using 1238 standards of ASTM, 190 DEG C, the load of 2.16kg, it is desirable that 5-35g/min.
Heat distortion temperature：Using ASTM D648 standards, the load of 0.45MPa is applied in sample strip, immerses silicone oil
In, 3~5min is preheated, is heated with the speed of 2 DEG C/min, temperature of the batten when weight is 0.254m is measured.It is required that being more than 70
℃。
Heat-stable time at 200 DEG C：It is tested using 6.6 of GB/T 8815-2008 standards, it is desirable that be more than
300min。
Dyne value：It is drawn a line on plain color edge band surface with dyne pen, the value not shunk in 2 seconds is dyne
Value, it is desirable that be more than 38.
Resistance to shrinkage：With single screw extrusion machine (the double woods machinery limited liability companies in Zhejiang, model YJ-50), squeeze out
The edge band of 1.0mm × 22mm, and excessively German glue king's glue.Under room temperature (18 ± 2) DEG C environment, with edge banding machine (the emerging carpenter in south
Machinery Co., Ltd., model MFB60CA, Fuller board hot melt adhesive) edge sealing.Medium density fiberboard (200mm × 100mm × 18mm) after edge sealing
Flat both ends are sawed on sizing saw machine (Nan Xing woodworking machinerys Co., Ltd, model NJ1116), and measure the length a of sample edge band,
It is accurate to 0.01mm.Sample is taken to lie in cold-hot impact tester (Bao Yuantong detection devices Co., Ltd, model BYT-C4) survey
It tries in storehouse, 65 DEG C of high temperature, places 2h, -20 DEG C of low temperature places 2h, and 4h mono- is recycled, and recycles 2 times, after the test, takes out sample
It is placed in room temperature 1-1.5h, the length b of sample edge band is measured, is accurate to 0.01mm.Shrinking percentage (%) W=(a-b)/a ×
100%, it is accurate to 0.01%, it is desirable that be less than 0.2%.
Fluting collapses angle test：With single screw extrusion machine (the double woods machinery limited liability companies in Zhejiang, model YJ-50), squeeze out
The edge band of 1.0mm × 22mm, and excessively German glue king's glue.Under room temperature (18 ± 2) DEG C environment, with edge banding machine (the emerging carpenter in south
Machinery Co., Ltd., model MFB60CA, Fuller board hot melt adhesive) edge sealing.Particieboard (200mm × 100mm × 18mm) after edge sealing
Flat both ends are sawed on sizing saw machine (Nan Xing woodworking machinerys Co., Ltd, model NJ1116), and constant temperature 4h or more waits slotting.Adjusting can
The table top that inclines universal circular saw machine (Foshan Shunde New Mas Woodworking Machinery ＆ Equipment Co., Ltd., model MJ143, blade thickness 9mm,
Groove depth 6mm), make 6 ± 2mm of groove depth, slot 40 ± 20mm of distance, slots apart from 40 ± 20mm of edge sealing end, each sample
Product crossheading and inverse slot are respectively opened twice, and edge band out-of-flatness is to collapse angle at fluting.Angle phenomenon is collapsed it is required that cannot have.
Smell is tested：This material is squeezed out to the edge band that 1mm*22mm is made, by positive and negative gross area 0.125m2, it is placed in
In the wide mouth glass bottle of 2.5L, 65 DEG C of * 2H, totally 6 grades of oder levels, it is desirable that be less than 3 grades (flavoursome, but do not stimulate).
VOC is tested：The edge band of the 1mm*22mm of positive and negative area 1m2 is placed on 1m3Environment release storehouse 3 days (23 DEG C,
50% humidity), benzene hydrocarbon substance is adsorbed with Tenax pipes, is detected with ATD-GC-MS, it is desirable that be less than 300ug/m3。
The above measured properties of product data are shown in Table 1.
Table 1-PVC edge band material properties.
The detection data of Examples 1 to 5 can be seen that the low VOC with the present invention, low smell environment-friendly PVC edge sealing from table 1
Item not only meets the application requirement of edge band, but also smell test and VOC tests are far below standard requirement.
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 being explained in detail to the present invention with reference to preferred embodiment, those skilled in the art answer
Work as understanding, technical scheme of the present invention can be modified or replaced equivalently, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. a kind of preparation method of the environment-friendly PVC edge sealing strip material of low VOC, low smell, it is characterized in that：Include the following steps,
(1) raw material of following parts by weight is weighed：
Wherein, the degree of polymerization of the polyvinyl chloride resin is 700~1300；
(2) formula ratio is pressed, by polyvinyl chloride resin, stabilizer inorganic carrier, main stabilizer, auxiliary stabilizer, processing aid, interior lubrication
Agent and external lubricant are stirred, and warming while stirring obtains the first uniformly mixed mixture to 95~110 DEG C；
(3) filler of the solid plasticizer and formula ratio of formula ratio is added to first mixture, at 105~120 DEG C
Continue to stir evenly, obtains the second uniformly mixed mixture；
(4) by the second mixture discharging to cold mixer and stirring be cooled to 25~40 DEG C；
(5) screw pelletizer is added in the material of above-mentioned cooling treatment, then the extruding pelletization when vacuumizing, environment-friendly PVC is made
Edge sealing strip material.
2. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The stabilizer inorganic carrier is one kind or arbitrary in hydrotalcite, zeolite, calcium hydroxide, magnesium hydroxide and aluminium hydroxide
Two or more mixtures.
3. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The main stabilizer is made of calcium stearate and zinc stearate, the weight ratio of the calcium stearate and the zinc stearate
It is 1~5：1.
4. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The auxiliary stabilizer is dibenzoyl methane calcium, trisnonyl phenyl phosphite, four C12-15 esters of diphosphorous acid bisphenol-A, double
Pentaerythrite and one kind or arbitrary two or more in four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol esters
Mixture.
5. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The solid plasticizer is ethylene/methacrylic acid ester copolymer, ethylene/ethylacrylate copolymer, ethylene/butyl
Acrylate copolymer, ethylene acid vinyl acetate/carbonyl copolymer, one kind in ethylene/butyl acrylate/carbonyl copolymer or
Arbitrary two or more mixture.
6. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The filler is one kind or two in not surface treated precipitated calcium carbonate, not surface treated powdered whiting
The mixture of kind.
7. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The processing aid is methyl methacrylate/acrylic acid ester/styrol copolymer and acrylic acid modified polytetrafluoroethyl-ne alkenes
One or both of mixture.
8. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The in-lubricant is the aliphatic ester of hydantoins glycol, the aliphatic ester of polyglyceryl ether, montanate and montanic acid soap
In one kind or arbitrary two or more mixture；The external lubricant is in oxidized polyethylene wax, polyethylene wax, polypropylene wax
One kind or arbitrary two or more mixture.
9. the preparation method of the environment-friendly PVC edge sealing strip material of a kind of low VOC according to claim 1, low smell, feature
It is：The screw pelletizer is dual-screw pelletizer, and the screw speed of the dual-screw pelletizer is 80~160r/min, described
Each area's temperature of dual-screw pelletizer is set as：One 130~140 DEG C of area, 135~45 DEG C of 2nd area, 140~150 DEG C of 3rd area, 4th area
145~155 DEG C, 150~160 DEG C of 5th area, 155~165 DEG C of 6th area, 160~170 DEG C of 7th area, 150~160 DEG C of head.
10. PVC edge sealing strip materials made from a kind of preparation method as described in any one of claim 1~9.
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| CN109705490A (en) * | 2018-11-30 | 2019-05-03 | 东莞市兄奕塑胶制品有限公司 | A kind of ceramic PVC edge band and preparation method thereof |
| CN110193949A (en) * | 2019-04-26 | 2019-09-03 | 东莞市华立实业股份有限公司 | A kind of preparation method of edge band |
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| CN113861477A (en) * | 2021-09-30 | 2021-12-31 | 无锡市金华屹圆科技有限公司 | PVC pipe for refrigerator and surface treatment process thereof |
| CN114426748A (en) * | 2020-10-29 | 2022-05-03 | 中广核三角洲（江苏）塑化有限公司 | Preparation process of deformation-resistant PVC (polyvinyl chloride) elastomer material for automotive interior |
| CN114426747A (en) * | 2020-10-29 | 2022-05-03 | 中广核三角洲（江苏）塑化有限公司 | Deformation-resistant PVC elastomer automotive interior material |
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