CN110922697A - PVC (polyvinyl chloride) with low TVOC (total volatile organic compound) content and preparation method thereof - Google Patents

PVC (polyvinyl chloride) with low TVOC (total volatile organic compound) content and preparation method thereof Download PDF

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CN110922697A
CN110922697A CN201911244361.XA CN201911244361A CN110922697A CN 110922697 A CN110922697 A CN 110922697A CN 201911244361 A CN201911244361 A CN 201911244361A CN 110922697 A CN110922697 A CN 110922697A
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pvc
parts
raw material
low tvoc
mixed raw
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王玲姿
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Taizhou Liancheng Chemical Co Ltd
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Taizhou Liancheng Chemical Co Ltd
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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
    • 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
    • C08K2003/2237—Oxides; Hydroxides of metals of titanium
    • C08K2003/2241—Titanium dioxide
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • 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

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

The invention discloses PVC with low TVOC content, which relates to the modification of PVC, and comprises the following raw materials in parts by mass: 100 parts of PVC, 30-50 parts of pentaerythritol tetraester, 2-4 parts of inorganic heat stabilizer LC631A 2, 10-30 parts of water-milled heavy calcium carbonate, 0.6-1.5 parts of lubricant and 1.2-1.6 parts of methyl methacrylate. Firstly, the application is basically free of organic additives and is added with an inorganic heat stabilizer LC631A, so that the application not only improves the heat stability of PVC, but also reduces the generation of TVOC. Furthermore, the pentaerythritol tetraester is a plasticizer which can form hydrogen bonds with PVC, so that the migration of the pentaerythritol tetraester is inhibited, the probability that the pentaerythritol tetraester indirectly enters a human body is reduced, and the health is influenced. In addition, the methyl methacrylate can generate polymethyl methacrylate with better compatibility with PVC, and the structural strength of PVC is improved. And polymethyl methacrylate can form a net structure, so that volatilization of volatile organic substances is inhibited.

Description

PVC (polyvinyl chloride) with low TVOC (total volatile organic compound) content and preparation method thereof
Technical Field
The invention relates to the field of PVC production, and particularly relates to PVC with low TVOC content and a preparation method thereof.
Background
TVOC is an abbreviation for "total volatile organic compounds" and refers primarily to volatile organic compounds between C6 and C16. The TVOC exceeding the standard in the automobile has great harm to human body, and can cause headache, dizziness, nausea and the like for a long time, and serious people can cause anemia and even carcinogenesis. This air pollution in the car can also cause drivers to be anxious and uneasy, and the attention can not be concentrated, which affects the driving safety and causes traffic accidents. The national delivery in 3 months of 2012 puts forward a standard for the amount of TVOC in the automobile in GBT 27630 plus 2011 passenger automobile interior air quality evaluation guideline.
The polyvinyl chloride is prepared by using vinyl chloride monomer as an initiator in the presence of peroxide, azo compounds and the like; or a polymer polymerized by a free radical polymerization mechanism under the action of light and heat. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins.
In the prior art, PVC has poor thermal stability, so a large amount of organic additives are required to be added in the production process of PVC to make up for the defects of PVC. However, when the PVC is used as vehicle accessories or decorations after the addition of the organic auxiliary agent, the organic auxiliary agent is easily emitted to the environment, which easily causes the TVOC content in the vehicle to increase and even exceed the national standard, and affects the health of people. Therefore, it is very necessary to develop a PVC having good thermal stability and low TVOC content.
Disclosure of Invention
The object of the present invention is to provide a PVC which not only has a low TVOC content, but also has good thermal stability and is therefore suitable for the production of accessories for use in the interior of automobiles.
The above object of the present invention is achieved by the following technical solutions: the PVC with low TVOC content comprises the following raw materials in parts by mass: 100 parts of PVC, 30-50 parts of pentaerythritol tetraester, 2-4 parts of inorganic heat stabilizer LC631A 2, 10-30 parts of water-milled heavy calcium carbonate, 0.6-1.5 parts of lubricant and 1.2-1.6 parts of methyl methacrylate.
Through adopting above-mentioned technical scheme, at first, this application does not basically add organic auxiliary agent, and the heat stabilizer of this application be inorganic heat stabilizer LC631A for inorganic heat stabilizer, consequently, this application has both improved PVC's thermal stability, has also reduced PVC's TVOC content simultaneously.
Further, pentaerythritol tetraester here corresponds to a plasticizer which can easily form a hydrogen bond with PVC, thereby effectively suppressing migration of itself. Therefore, the pentaerythritol tetraester can be prevented from indirectly entering the human body to influence the human health.
Because the methyl methacrylate can generate polymethyl methacrylate which is close to the solubility parameter of PVC and has better intermiscibility in the process of melt extrusion, the structural strength of the PVC can be improved in the production process. And polymethyl methacrylate can form network structure to also can lock volatile material, reduced the content of TVOC.
Preferably, the lubricant is a mixture of monoglyceride and oxidized polyethylene wax, and the monoglyceride accounts for 0.5-1.0 part, and the oxidized polyethylene wax accounts for 0.1-0.5 part.
Through adopting above-mentioned technical scheme, the addition of monoglyceride and oxidized polyethylene wax can reduce the frictional resistance of each raw materials in mixing process effectively on the one hand, guarantees that each raw materials can mix fully, reduces the energy consumption among the mixing process, and on the other hand, monoglyceride can play the synergistic effect to pentaerythritol tetraester, further promotes PVC's plastify modification effect. Meanwhile, the oxidized polyethylene wax can capture HCL with autocatalysis function released by the PVC resin so as to prevent or reduce the decomposition of the PVC resin. When the PVC heat stabilizer is matched with the inorganic heat stabilizer LC631A, the heat stabilizing temperature of PVC can be greatly increased.
Preferably, the coating further comprises 1.2-1.6 parts of a light stabilizer.
Preferably, the light stabilizer is TiO2And a derivative of 2-hydroxybenzophenone, in a mass ratio of 1: 0.2 to 0.6.
By adopting the technical scheme, on one hand, TiO2Can reflect ultraviolet rays to a certain degree, thus reducing the influence of the ultraviolet rays on PVC, further improving the ultraviolet resistance of the PVC, and in additionOn the one hand, TiO2Under the action of ultraviolet rays, the catalytic oxidation effect of the volatile organic gas around the ultraviolet ray can be promoted, so that the possibility that the volatile organic substance is diffused into the surrounding air is reduced.
Furthermore, the derivatives of 2-hydroxybenzophenone can absorb ultraviolet rays and convert the ultraviolet rays into heat energy by generating intramolecular vibration, so that the ultraviolet rays are consumed and released to the surrounding environment, thereby further improving the ultraviolet resistance of the PVC.
Preferably, the derivative of 2-hydroxybenzophenone is one of 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4-methoxy-2' -carboxybenzophenone and 2, 4-dihydroxybenzophenone.
Preferably, the material also comprises 1.5-1.9 parts of lithium iodide or copper iodide.
By adopting the technical scheme, the lithium ions and the copper ions in the lithium iodide can also have compatibility with chlorine elements in PVC, so that a structure similar to a network is generated, and free movement of the chlorine elements in PVC molecular chains is blocked, so that the PVC molecular chains need to overcome a larger energy barrier than completely free molecular chains when being heated and decomposed, and the PVC is promoted to have a higher thermal decomposition temperature. Meanwhile, the formed network structure can play a role in restraining the volatile organic substances, and the probability of volatilization of the volatile organic substances is reduced.
In addition, the copper ion still has certain bactericidal action, can improve the antibiotic antibacterial effect of PVC material effectively, therefore chooses the PVC of this application to go to produce the inside accessory and ornament of car, also is favorable to guaranteeing that the user's is healthy like this.
A preparation method of PVC with low TVOC content is characterized in that: comprises the following steps of (a) carrying out,
the method comprises the following steps: weighing PVC, pentaerythritol tetraester, inorganic heat stabilizer LC631A, water-milled heavy calcium carbonate and lubricant according to the specified requirements, and uniformly mixing all the components to obtain a first mixed raw material;
step two: weighing other auxiliary agents according to the specified requirements, adding the other auxiliary agents into the mixed raw material I, and then uniformly mixing again to obtain a mixed raw material II;
step three: adding the mixed raw material II into a screw extruder for melt extrusion;
step four: after extrusion, cooling with cooling water, and then shearing and granulating.
Preferably, the initiator is added to the screw extruder in the third step simultaneously with the second mixed raw material, and the amount of the initiator is 1% of the total amount of the second mixed raw material.
By adopting the technical scheme, the initiator can promote methyl methacrylate to polymerize, so that the structural strength of PVC can be further improved, and the methyl methacrylate can rapidly polymerize under the action of the initiator, so that the effect of confining organic volatile substances is achieved.
Preferably, the initiator is one of di-tert-butyl peroxide, diisopropyl peroxydicarbonate and benzoyl peroxide.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the heat stabilizer added in the PVC is an inorganic heat stabilizer LC631A, so that the PVC can be ensured to have good heat stability, and the generation of TVOC can be reduced;
2. the methyl methacrylate is added, so that on one hand, the methyl methacrylate can generate the polymethyl methacrylate after polymerization, and meanwhile, the polymethyl methacrylate can form a net structure to limit the organic volatile substances in PVC;
3. the uvioresistant agent is TiO2And derivatives of 2-hydroxybenzophenone, so that the UV-screening agent can reduce the effect of UV on PVC materials, and on the other hand TiO2The catalyst can also perform catalytic oxidation on the organic volatile substances under the action of ultraviolet rays, thereby reducing the content of the organic volatile substances in the environment.
Drawings
FIG. 1 is a flow chart of the process for preparing PVC with low TVOC content according to the present invention.
Detailed Description
The present invention is described in further detail below with reference to fig. 1.
The first embodiment is as follows:
a preparation method of PVC with low TVOC content comprises the following steps:
the method comprises the following steps: 100Kg of PVC, 30Kg of pentaerythritol tetraester, 2Kg of inorganic heat stabilizer LC631A, 10Kg of water-milled heavy calcium carbonate and 0.6Kg of lubricant are weighed and all mixed uniformly to obtain a first mixed raw material;
step two: weighing 1.2Kg of methyl methacrylate, adding the methyl methacrylate into the first mixed raw material, and then uniformly mixing again to obtain a second mixed raw material;
step three: adding the mixed raw material II and 1.4Kg of di-tert-butyl peroxide into a screw extruder together for melt extrusion;
step four: after extrusion, cooling with cooling water, and then shearing and granulating.
Wherein the lubricant is a mixture of monoglyceride and oxidized polyethylene wax, and the monoglyceride is 0.5Kg, and the oxidized polyethylene wax is 0.1 Kg.
In addition, pentaerythritol tetraester was obtained from sweden stedt corporation, inorganic thermal stabilizer LC631A was obtained from taizhou co-generation chemical company ltd, water ground heavy calcium carbonate was obtained from jiang guangyuan calcium carbonate ltd, monoglyceride was obtained from hangzhou grease chemical company ltd, and oxidized polyethylene wax was obtained from hounwell corporation, usa.
Example two:
a preparation method of PVC with low TVOC content comprises the following steps:
the method comprises the following steps: 100Kg of PVC, 40Kg of pentaerythritol tetraester, 3Kg of inorganic heat stabilizer LC631A, 20Kg of water-milled heavy calcium carbonate and 1.1Kg of lubricant are weighed and uniformly mixed to obtain a first mixed raw material;
step two: weighing 1.4Kg of methyl methacrylate, adding the methyl methacrylate into the first mixed raw material, and then uniformly mixing again to obtain a second mixed raw material;
step three: adding the mixed raw material II and 1.8 diisopropyl peroxydicarbonate into a screw extruder together for melt extrusion;
step four: after extrusion, cooling with cooling water, and then shearing and granulating.
Wherein the lubricant is a mixture of monoglyceride and oxidized polyethylene wax, the monoglyceride is 0.8Kg, and the oxidized polyethylene wax is 0.3 part.
Example three:
a preparation method of PVC with low TVOC content comprises the following steps:
the method comprises the following steps: 100Kg of PVC, 50Kg of pentaerythritol tetraester, 4Kg of inorganic heat stabilizer LC631A, 30Kg of water-milled heavy calcium carbonate and 1.5Kg of lubricant are weighed and uniformly mixed to obtain a first mixed raw material;
step two: weighing 1.6Kg of methyl methacrylate, adding the methyl methacrylate into the first mixed raw material, and then uniformly mixing again to obtain a second mixed raw material;
step three: adding the mixed raw material II and 1.9Kg of benzoyl peroxide into a screw extruder together for melt extrusion;
step four: after extrusion, cooling with cooling water, and then shearing and granulating.
Wherein, the lubricant is a mixture of monoglyceride and oxidized polyethylene wax, and the monoglyceride is 1.0Kg, and the oxidized polyethylene wax is 0.5 Kg.
Example four:
a preparation method of PVC with low TVOC content comprises the following steps:
the method comprises the following steps: 100Kg of PVC, 30Kg of pentaerythritol tetraester, 4Kg of inorganic heat stabilizer LC631A, 20Kg of water-milled heavy calcium carbonate and 1.1Kg of lubricant are weighed and uniformly mixed to obtain a first mixed raw material;
step two: weighing 1.6Kg of methyl methacrylate, adding the methyl methacrylate into the first mixed raw material, and then uniformly mixing again to obtain a second mixed raw material;
step three: adding the mixed raw material II and 1.6Kg of diisopropyl peroxydicarbonate into a screw extruder together for melt extrusion;
step four: after extrusion, cooling with cooling water, and then shearing and granulating.
Wherein the lubricant is a mixture of monoglyceride and oxidized polyethylene wax, and the monoglyceride is 0.8Kg, and the oxidized polyethylene wax is 0.3 Kg.
Example five:
a preparation method of PVC with low TVOC content comprises the following steps:
the method comprises the following steps: 100Kg of PVC, 50Kg of pentaerythritol tetraester, 3Kg of inorganic heat stabilizer LC631A, 10Kg of water-milled heavy calcium carbonate and 1.5Kg of lubricant are weighed and all mixed uniformly to obtain a first mixed raw material;
step two: weighing 1.4Kg of methyl methacrylate, adding the methyl methacrylate into the first mixed raw material, and then uniformly mixing again to obtain a second mixed raw material;
step three: adding the mixed raw material II and 1.7Kg of benzoyl peroxide into a screw extruder together for melt extrusion;
step four: after extrusion, cooling by using cooling water, and then shearing and granulating or pouring into a mould for casting and molding.
Wherein, the lubricant is a mixture of monoglyceride and oxidized polyethylene wax, and the monoglyceride is 1.0Kg, and the oxidized polyethylene wax is 0.5 Kg.
Example six:
the difference between the preparation method of PVC with low TVOC content and the first embodiment is that 1.2Kg of light stabilizer is also added into the first mixed raw material in the second step of the embodiment, and the light stabilizer is TiO2And 2-hydroxy-4-n-octoxybenzophenone in a mass ratio of 1: 0.2.
example seven:
the difference between the preparation method of PVC with low TVOC content and the second embodiment is that 1.4Kg of light stabilizer is also added into the first mixed raw material in the second step of the embodiment, and the light stabilizer is TiO2And 2-hydroxy-4-n-octoxybenzophenone in a mass ratio of 1: 0.4.
example eight:
the difference between the preparation method of PVC with low TVOC content and the third embodiment is that 1.6Kg of light stabilizer is also added into the first mixed raw material in the second step of the embodiment, and the light stabilizer is TiO2And 2-hydroxy-4-n-octoxybenzophenone in a mass ratio of 1: 0.6.
example nine:
a preparation method of PVC with low TVOC content is different from the sixth embodiment in that 1.5Kg of lithium iodide is also added into the first mixed raw material in the second step of the embodiment.
Example ten:
the difference between the preparation method of PVC with low TVOC content and the seventh embodiment is that 1.7Kg of copper iodide is also added into the first mixed raw material in the second step of the embodiment.
Example eleven:
a preparation method of PVC with low TVOC content is different from the eighth embodiment in that 1.9Kg of copper iodide is also added into the first mixed raw material in the second step of the embodiment.
Comparative example one:
this comparative example differs from example seven in that the light stabilizers are all TiO2。
Comparative example two:
this comparative example differs from example seven in that the light stabilizers were all 2-hydroxy-4-n-octoxybenzophenone.
The PVC of examples one to eleventh and comparative examples one and two was made into 10cm by 5cm format blocks, tested according to the following test standards or methods:
1. PVC was placed in a space of 1m3 for 24h, and then the TVOC content (ppm) in the space was tested;
2. pressing PVC by using a press machine, and testing the compression resistance (Mpa);
3. dripping the cell culture solution on PVC, then placing the PVC in a normal-temperature environment for 3 days, and observing the colony number (cfu) on the surface of the PVC;
4. irradiating PVC for 72h by using ultraviolet rays with the wavelength of 400nm, then applying pressure to the PVC by using a press machine, and testing the pressure resistance (Mpa) of the PVC;
5. testing the plasticizer migration rate (%, 70 ℃/144 h) of PVC according to the standard of GB 3830-2008;
6. the temperature (. degree.C.) of the decomposition temperature of PVC was observed while heating was continued.
The test results are shown in the following table one:
watch 1
Test items TVOC content/ppm Compressive strength/Mpa Colony count/cfu Compressive strength/Mpa after ultraviolet irradiation Migration rate of plasticizer/%, 70 ℃/144h Decomposition temperature/. degree.C
Example one 8 42 23 23 2 223
Example two 5 47 23 25 1 225
EXAMPLE III 6 53 24 29 1 226
Example four 6 45 25 25 2 228
EXAMPLE five 5 46 21 27 1 226
EXAMPLE six 1 46 23 45 0.9 227
EXAMPLE seven 2 50 22 48 0.8 227
Example eight 2 56 26 54 0.9 226
Example nine 2 47 20 46 0.8 238
Example ten 2 50 1 50 0.8 239
EXAMPLE eleven 1 57 2 55 0.7 238
Comparative example 1 3 49 23 35 1 226
Comparative example No. two 5 48 24 33 1 227
As is clear from the first table above, the PVCs of examples one through twelve of the present application all have good thermal stability and less TVOC production. As can be seen from a comparison of example seven with comparative examples one and two, only TiO was present2Can effectively improve the uvioresistant performance of PVC only by being compounded with the derivative of 2-hydroxybenzophenone. In addition, the test results of the tenth and eleventh examples can also prove that the addition of copper iodide can cooperate with the inorganic heat stabilizer LC631A to effectively improve the thermal stability of PVC, and the copper iodide can also inhibit the growth of various bacteria on PVC.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (9)

1. A PVC with low TVOC content characterized by: the raw materials comprise the following components in parts by weight:
100 portions of PVC
30-50 parts of pentaerythritol tetraester
2-4 parts of inorganic heat stabilizer LC631A 2
10-30 parts of water-milled heavy calcium carbonate
0.6 to 1.5 parts of lubricant
1.2-1.6 parts of methyl methacrylate.
2. The PVC of claim 1 having a low TVOC content, wherein: the lubricant is a mixture of monoglyceride and oxidized polyethylene wax, wherein the monoglyceride accounts for 0.5-1.0 part, and the oxidized polyethylene wax accounts for 0.1-0.5 part.
3. The PVC of claim 1 having a low TVOC content, wherein: and 1.2-1.6 parts of a light stabilizer.
4. The PVC of claim 3 having a low TVOC content, wherein: the light stabilizer is TiO2And a derivative of 2-hydroxybenzophenone, in a mass ratio of 1: 0.2 to 0.6.
5. The PVC of claim 4 with low TVOC content, which is characterized in that: the derivative of the 2-hydroxybenzophenone is one of 2-hydroxy-4-n-octoxybenzophenone, 2-hydroxy-4-methoxybenzophenone and 2-hydroxy-4-methoxy-2' -carboxybenzophenone.
6. The PVC of claim 1 having a low TVOC content, wherein: also comprises 1.5-1.9 parts of lithium iodide or copper iodide.
7. A process for the preparation of PVC with low TVOC content as claimed in any one of claims 1 to 6 wherein: comprises the following steps of (a) carrying out,
the method comprises the following steps: weighing PVC, pentaerythritol tetraester, inorganic heat stabilizer LC631A, water-milled heavy calcium carbonate and lubricant according to the specified requirements, and uniformly mixing all the components to obtain a first mixed raw material;
step two: weighing other auxiliary agents according to the specified requirements, adding the other auxiliary agents into the mixed raw material I, and then uniformly mixing again to obtain a mixed raw material II;
step three: adding the mixed raw material II into a screw extruder for melt extrusion;
step four: after extrusion, cooling with cooling water, and then shearing and granulating.
8. The method for preparing PVC with low TVOC content as claimed in claim 7, wherein: and in the third step, an initiator is added into the screw extruder synchronously with the second mixed raw material, and the amount of the initiator is 1 percent of the total amount of the second mixed raw material.
9. The method for preparing PVC with low TVOC content according to claim 8, wherein: the initiator is one of di-tert-butyl peroxide, diisopropyl peroxydicarbonate and benzoyl peroxide.
CN201911244361.XA 2019-12-06 2019-12-06 PVC (polyvinyl chloride) with low TVOC (total volatile organic compound) content and preparation method thereof Pending CN110922697A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104497437A (en) * 2014-11-24 2015-04-08 苏州新区佳合塑胶有限公司 Aging-resistant PVC plastic formula
CN105061807A (en) * 2010-08-23 2015-11-18 佩什托普公司 Non-Phthalic Plasticiser
CN107177128A (en) * 2017-06-14 2017-09-19 合肥市旺友门窗有限公司 A kind of fire-retardant door and window plastic-steel material of impact-resistant abrasion-proof and preparation method thereof
CN107353540A (en) * 2017-07-31 2017-11-17 海南鑫申绿色建筑科技有限公司 A kind of plastics-steel combination plate
CN108148314A (en) * 2016-12-06 2018-06-12 青岛绿谷生物科技有限公司 A kind of weather-proof polyvinyl chloride dedicated parent material and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105061807A (en) * 2010-08-23 2015-11-18 佩什托普公司 Non-Phthalic Plasticiser
CN104497437A (en) * 2014-11-24 2015-04-08 苏州新区佳合塑胶有限公司 Aging-resistant PVC plastic formula
CN108148314A (en) * 2016-12-06 2018-06-12 青岛绿谷生物科技有限公司 A kind of weather-proof polyvinyl chloride dedicated parent material and preparation method thereof
CN107177128A (en) * 2017-06-14 2017-09-19 合肥市旺友门窗有限公司 A kind of fire-retardant door and window plastic-steel material of impact-resistant abrasion-proof and preparation method thereof
CN107353540A (en) * 2017-07-31 2017-11-17 海南鑫申绿色建筑科技有限公司 A kind of plastics-steel combination plate

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Application publication date: 20200327