NL2032180B1 - Water-based microcellular foaming pvc coating and preparation method thereof - Google Patents
Water-based microcellular foaming pvc coating and preparation method thereof Download PDFInfo
- Publication number
- NL2032180B1 NL2032180B1 NL2032180A NL2032180A NL2032180B1 NL 2032180 B1 NL2032180 B1 NL 2032180B1 NL 2032180 A NL2032180 A NL 2032180A NL 2032180 A NL2032180 A NL 2032180A NL 2032180 B1 NL2032180 B1 NL 2032180B1
- Authority
- NL
- Netherlands
- Prior art keywords
- water
- mixture
- parts
- mass
- pvc coating
- Prior art date
Links
- 238000005187 foaming Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000011248 coating agent Substances 0.000 title claims abstract description 39
- 238000000576 coating method Methods 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 44
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000008595 infiltration Effects 0.000 claims abstract description 16
- 238000001764 infiltration Methods 0.000 claims abstract description 16
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000002156 mixing Methods 0.000 claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000011347 resin Substances 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 238000001035 drying Methods 0.000 claims abstract description 8
- 239000004014 plasticizer Substances 0.000 claims abstract description 7
- 239000002667 nucleating agent Substances 0.000 claims abstract description 6
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000005303 weighing Methods 0.000 claims abstract description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- -1 lead compound salt Chemical class 0.000 claims description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 6
- ZFOZVQLOBQUTQQ-UHFFFAOYSA-N Tributyl citrate Chemical compound CCCCOC(=O)CC(O)(C(=O)OCCCC)CC(=O)OCCCC ZFOZVQLOBQUTQQ-UHFFFAOYSA-N 0.000 claims description 6
- 229920001661 Chitosan Polymers 0.000 claims description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- JNXDCMUUZNIWPQ-UHFFFAOYSA-N trioctyl benzene-1,2,4-tricarboxylate Chemical compound CCCCCCCCOC(=O)C1=CC=C(C(=O)OCCCCCCCC)C(C(=O)OCCCCCCCC)=C1 JNXDCMUUZNIWPQ-UHFFFAOYSA-N 0.000 claims description 5
- 239000002105 nanoparticle Substances 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 3
- 239000012760 heat stabilizer Substances 0.000 claims description 3
- 229910052901 montmorillonite Inorganic materials 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 18
- 239000005543 nano-size silicon particle Substances 0.000 abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 9
- 230000002745 absorbent Effects 0.000 abstract description 8
- 239000002250 absorbent Substances 0.000 abstract description 8
- 239000004594 Masterbatch (MB) Substances 0.000 abstract description 6
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 43
- 229920000915 polyvinyl chloride Polymers 0.000 description 42
- 238000012360 testing method Methods 0.000 description 11
- 239000004088 foaming agent Substances 0.000 description 8
- 229960001866 silicon dioxide Drugs 0.000 description 8
- 229920000642 polymer Polymers 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 229920003002 synthetic resin Polymers 0.000 description 6
- 239000000057 synthetic resin Substances 0.000 description 6
- 238000003801 milling Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 4
- 239000012229 microporous material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000004156 Azodicarbonamide Substances 0.000 description 2
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 2
- 235000019399 azodicarbonamide Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229940117913 acrylamide Drugs 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000013012 foaming technology Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 229920005615 natural polymer Polymers 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
- C08J9/125—Water, e.g. hydrated salts
-
- 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
- C08J2203/10—Water or water-releasing compounds
-
- 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
- C08J2205/00—Foams characterised by their properties
- C08J2205/04—Foams characterised by their properties characterised by the foam pores
- C08J2205/044—Micropores, i.e. average diameter being between 0,1 micrometer and 0,1 millimeter
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The present disclosure discloses a water—based microcellular foaming PVC coating and a preparation method thereof. The method comprises the following steps: 1, weighing PVC masterbatch, a plasticizer and a stabilizer, fully mixing, placing the mixture 5 into a drying oven for pre—plasticizing; 2, adding nano super absorbent resin, liquid nano silicon dioxide sol and a nucleating agent into the mixture in the step 1, uniformly mixing and stirring, placing the mixture into a mixing rheometer, performing banburying for 15—20 min, keeping warm at 450°C for 20 min, cooling 10 and discharging; 3. placing the sample in the step 2 into a reaction kettle, adding water, setting the foaming temperature to be lOO—lOÊT, the base material infiltration pressure to be 6—8 MPa, the infiltration time to be 12—15 min, reducing the pressure to normal pressure and cooling to obtain the water—based l5 microcellular foaming PVC coating.
Description
P1408/NLpd
WATER-BASED MICROCELLULAR FOAMING PVC COATING AND PREPARATICN
METHOD THEREOF
The present disclosure relates to a water-based PVC foaming technology, and particularly relates to a water-based microcellu- lar foaming PVC coating and a preparation method thereof.
Microcellular foaming material generally refers to a new type of material whose internal cell diameter is below 10 pm (or 100 um) and cell density reaches 10°-10%°/cm’. It is characterized by light weight, low density and excellent mechanical performance, and good insulation, heat insulation, sound insulation and buffer- ing properties, and can achieve the lightweight of polymer materi- als without losing or even improving the material performance. The product is cost-effective, and can meet the requirements of energy saving, consumption reduction, emission reduction, resource sav- ing, and environmentally friendly high-performance lightweight ma- terials in the construction of a modern society. Compared with un- foamed PVC, polyvinyl chloride (PVC) microporous material has im- proved impact strength, toughness, fatigue life and thermal sta- bility, and has the advantages of light weight, moth resistance, corrosion resistance, moisture resistance, low heat conductivity coefficient, good thermal insulation performance, excellent weath- er resistance, etc. which can be comparable to woods and can be processed like natural woods. With the continuous reduction of global wood resources, PVC microporous materials will become an important trend in the development of PVC materials in the future.
Therefore, the preparation and application of high-performance PVC microporous materials can effectively save raw materials and in- crease the added value of products.
At present, most of the PVC microcellular foaming materials available on the markets adopt chemical or physical foaming meth- ods. Azodicarbonamide (AC) is the most widely used organic exo-
thermic foaming agent on the market, and has currently been used in the foaming of resins such as vinyl chloride, polyethylene, polyamide and ABS. NaHCO; is the most commonly used inorganic exo- thermic foaming agent. Its decomposition mainly releases a large amount of CO:. It is a high-quality green and environmentally friendly foaming agent, but due to low decomposition temperature, it is necessary to perform coating and modification or mix with other foaming agents before used for foam production. Because of high solubility in polymers, strong diffusivity and high nuclea- tion density of supercritical CO:, it is conducive to the formation of microporous materials with small cell size and uniform distri- bution, providing a prerequisite for the industrialized prepara- tion of microporous polymers. However, although the above two foaming methods have high foaming efficiency, there are also some problems such as pollution or complex process. The water-based foaming process is simple and convenient, and the nano- superabsorbent resin can be used as a water carrier to be dis- persed in other organic synthetic resins, so that water that is incompatible with organic synthetic resins can be dispersed in the polymer matrix, to provide a physical foaming agent for water- based foaming materials.
Object of the present disclosure: the first technical problem to be solved by the present disclosure is to provide a water-based microcellular foaming PVC coating, to solve the technical problems that an existing PVC physical foaming coating is complicated in process and complex in preparation process.
The second technical problem to be solved by the present dis- closure is to provide a method for preparing the water-based mi- crocellular foaming PVC coating.
The last technical problem to be solved by the present dis- closure is to provide an application of the water-based microcel- lular foaming PVC coating.
Technical solutions: in order to solve the above technical problems, the present disclosure provides the following technical solutions:
A method for preparing a water-based microcellular foaming
PVC coating comprises the following steps: (1) weighing 80-100 parts by mass of PVC, 40-50 parts by mass of a plasticizer and 6-8 parts by mass of a stabilizer, fully mixing, placing the mixture into a drying oven at 75-80°C for pre- plasticizing, and fully stirring once every 10 min for 5-6 times; (2) adding 30-40 parts by mass of nano super absorbent res- in, 30-40 parts by mass of liquid nano silicon dioxide sol and 3-5 parts by mass of a nucleating agent into the mixture in the step (1), uniformly mixing and stirring, placing the mixture into a mixing rheometer, performing banburying at 175-180°C for 15-20 min at a rotating speed of 25-30 rpm, keeping warm at 450°C for 20 min, cooling and discharging; {3) placing the sample in the step (2) into a reaction ket- tle, adding 30-50 parts by mass of water, setting the foaming tem- perature to be 100-105°C, the base material infiltration pressure to be 6-8 MPa, the infiltration time to be 12-15 min, reducing the pressure to normal pressure at the pressure relief rate of 0.5
MPa/s, and cooling to obtain the water-based microcellular foaming
PVC coating.
In the step (1), the plasticizer is one or a mixture of more of trioctyl trimellitate, triglyceride trimellitate and tributyl citrate.
In the step (1), the stabilizer is one or a mixture of two of lead compound salt or a rare earth heat stabilizer.
In the step (2), the super absorbent resin is one or a mix- ture of two of chitosan, a cellulose grafted acrylamide polymer and cross-linked polyacrylate, and is ground into nano-sized par- ticles before use.
In the step (2), the nucleating agent is one or a mixture of two of nano calcium carbonate, titanium dioxide and montmorillo- nite.
The method for preparing the water-based microcellular foam- ing PVC coating is within the protection range of the present dis- closure. In the present disclosure, nano super absorbent resin is grinded to prepare nano-sized particles, and the nano-sized parti-
cles are added into a PVC pre-molded body and subjected to banbur- ying with the plasticizer, the stabilizer and the nucleating agent for a period of time to obtain a saturated homogeneous system. The
PVC foaming coating is prepared through heating, pressurizing and depressurizing processes. The nano super absorbent resin can be used as a water carrier to be dispersed in other organic synthetic resin, thus water incompatible with the organic synthetic resin can be dispersed in a polymer matrix to provide a physical foaming agent for a water-based foaming material. In the pressure relief process, due to sharp drop of external pressure and instability of thermodynamics, a large number of bubble nuclei are instantaneous- ly formed in the polymer and start to grow. After pressure relief is completed, the product is rapidly cooled, thus the bubbles are formed, and a final foaming sample is obtained.
The application of the water-based microcellular foaming PVC coating to the surfaces of rainproof and sunshade base materials is within the protection range of the present disclosure.
Beneficial effects: (1) The plasticizer used in the present disclosure has the advantages of good compatibility, oil resistance, light re- sistance, mildew resistance, low volatility, high temperature re- sistance, flame retardance, migration resistance, etc., and the water-based microcellular foaming PVC coating is green, environ- mentally friendly, non-toxic and pollution-free. (2) The super absorbent resin used in the present disclosure is natural polymer water absorbent resin, and has the characteris- tics of high water absorption capacity, convenience in use, green- ness, environmental friendliness, etc. Liquid nano silicon dioxide sol is colorless and transparent and has a large specific surface area. (3) The nano super absorbent resin used in the present dis- closure can be used as a water carrier to be dispersed in other organic synthetic resin, so that water incompatible with the or- ganic synthetic resin can be dispersed in the polymer matrix, and the physical foaming agent is provided for the water-based foaming material; compared with the conventional physical or chemical foaming agent, the water-based foaming is more environmentally friendly, and the process is more convenient and quicker. (4) The liquid nano silicon dioxide sol used in the present disclosure is colorless and transparent and has a large specific surface area, without affecting the covered object; when moisture 5 of silica sol is evaporated, colloidal particles are firmly ad- hered to the surface of the object, silica-oxygen combination is formed among the particles, and good fastness is achieved.
The technical solutions of the present disclosure will be further described in detail below by particular embodiments, but the following embodiments are only used to illustrate the present disclosure and do not constitute a limitation on the protection scope of the present disclosure.
Example 1: Preparation of a water-based microcellular foaming
PVC coating: weigh 80 parts by mass of PVC masterbatch, 40 parts by mass of trioctyl trimellitate, 6 parts by mass of lead compound salt, full mix, place the mixture into a drying oven at 75°C for pre-plasticizing, and fully stir once every 10 min for 5 times; add 30 parts by mass of chitosan, 3 parts by mass of nano calcium carbonate, and 30 parts by mass of liquid nano silicon dioxide sol into the mixture, uniformly mix and stir, place the mixture into a mixing rheometer, set the rotating speed to be 25 rpm and the milling temperature to be 175°C, perform banburying for 15 min, then keep warm at 450°C for 20 min, cool and discharge; place the sample into a reaction kettle, add 30 parts by mass of water, set the foaming temperature to be 100°C, the base material infiltration pressure to be 6 MPa, the infiltration time to be 12 min, reduce the pressure to normal pressure at the pressure relief rate of 0.5
MPa/s, and cool to obtain the water-based microcellular foaming
PVC coating.
Testing of sample microcellular foaming density (g-cm’): Take a sample, place it into a 25 mL pycnometer filled with water, and measure the weight of the sample, the weight of pycnometer before filled with water, and the total weight after the sample is placed into the pycnometer. The cell density is calculated according to the following formula: py = kee
Where: pwater is the density of water, Ws is the weight of the sample, Wl is the total weight of the pycnometer filled with water, and W2 is the total weight of the pycnometer filled with the sample and water.
The mass test of water-based microcellular foaming PVC coat- ing and unfoamed PVC: Take a piece of water-based microcellular foaming PVC coating and unfoamed PVC coating with a size of 10 cmx10 cm respectively, and perform mass test using an electronic balance.
Example 2: Preparation of a water-based microcellular foaming
PVC coating: weigh 100 parts by mass of PVC masterbatch, 50 parts by mass of triglyceride trimellitate, 8 parts by mass of a rare earth heat stabilizer, full mix, place the mixture into a drying oven at 80°C for pre-plasticizing, and fully stir once every 10 min for 6 times; add 40 parts by mass of a cellulose grafted acryla- mide polymer, 5 parts by mass of titanium dioxide, and 30 parts by mass of liquid nano silicon dioxide sol into the mixture, uniform- ly mix and stir, place the mixture into a mixing rheometer, set the rotating speed to be 30 rpm and the milling temperature to be 180°C, perform banburying for 20 min, then keep warm at 450°C for 20 min, cool and discharge; place the sample into a reaction ket- tle, add 50 parts by mass of water, set the foaming temperature to be 105°C, the base material infiltration pressure to be § MPa, the infiltration time to be 15 min, reduce the pressure to normal pressure at the pressure relief rate of 0.5 MPa/s, and cool to ob- tain the water-based microcellular foaming PVC coating. The test- ing of sample microcellular foaming density and the mass test are the same as those in Example 1.
Example 3: Preparation of a water-based microcellular foaming
PVC coating: weigh 90 parts by mass of PVC masterbatch, 45 parts by mass of tributyl citrate, 7 parts by mass of lead compound salt, full mix, place the mixture into a drying oven at 78°C for pre-plasticizing, and fully stir once every 10 min for 5 times;
add 35 parts by mass of cross-linked polyacrylate, 4 parts by mass of montmorillonite, 30 parts by mass of liquid nano silicon diox- ide sol into the mixture, uniformly mix and stir, place the mix- ture into a mixing rheometer, set the rotating speed to be 28 rpm and the milling temperature to be 178°C, perform banburying for 18 min, then keep warm at 450°C for 20 min, cool and discharge; place the sample into a reaction kettle, add 40 parts by mass of water, set the foaming temperature to be 103°C, the base material infil- tration pressure to be 7 MPa, the infiltration time to be 13 min, reduce the pressure to normal pressure at the pressure relief rate of 0.5 MPa/s, and cool to obtain the water-based microcellular foaming PVC coating. The testing of sample microcellular foaming density and the mass test are the same as those in Example 1.
Example 4: Preparation of a water-based microcellular foaming
PVC coating: weigh 100 parts by mass of PVC masterbatch, 50 parts by mass of trioctyl trimellitate, 8 parts by mass of lead compound salt, full mix, place the mixture into a drying oven at 80°C for pre-plasticizing, and fully stir once every 10 min for 5 times; add 40 parts by mass of chitosan, 5 parts by mass of nano calcium carbonate, 30 parts by mass of liquid nano silicon dioxide sol in- to the mixture, uniformly mix and stir, place the mixture into a mixing rheometer, set the rotating speed to be 30 rpm and the milling temperature to be 180°C, perform banburying for 17 min, then keep warm at 450°C for 20 min, cool and discharge; place the sample into a reaction kettle, add 50 parts by mass of water, set the foaming temperature to be 105°C, the base material infiltration pressure to be 8 MPa, the infiltration time to be 15 min, reduce the pressure to normal pressure at the pressure relief rate of 0.5
MPa/s, and cool to obtain the water-based microcellular foaming
PVC coating. The testing of sample microcellular foaming density and the mass test are the same as those in Example 1.
Comparative Example 1: weigh 100 parts by mass of PVC mas- terbatch, 50 parts by mass of trioctyl trimellitate, 8 parts by mass of lead compound salt, full mix, place the mixture into a drying oven at 80°C for pre-plasticizing, and fully stir once every 10 min for 5 times; add 40 parts by mass of chitosan, 5 parts by mass of nano calcium carbonate, 30 parts by mass of liquid nano silicon dioxide sol into the mixture, uniformly mix and stir, place the mixture into a mixing rheometer, set the rotating speed to be 30 rpm and the milling temperature to be 180°C, perform ban- burying for 15 min, then keep warm at 450°C for 20 min, cool and discharge; place the sample into a reaction kettle, set the foam- ing temperature to be 105°C, the base material infiltration pres- sure to be 8 MPa, the infiltration time to be 15 min, reduce the pressure to normal pressure at the pressure relief rate of 0.5
MPa/s, and cool to obtain unfoamed PVC coating. The testing of sample microcellular foaming density and the mass test are the same as those in Example 1.
Table 1: Microcellular Foaming Density Properties of Samples in Examples 1 to 4 and Comparative Example 1
Er tem Mass of sample/g density /g-cm as ‘
As shown in Table 1, the water-based microcellular foaming
PVC coating prepared by the present disclosure has a lower micro- cellular foaming density, and the mass of the PVC coating prepared by water-based foaming is smaller than that of the unfoamed PVC coating, which can overcome the shortcoming of a large mass and inconvenience in use of conventional PVC unfoamed coating to a great extent.
The foregoing description merely describes the technical so- lutions and does not limit the present disclosure. Other modifica- tions or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present disclosure without departing from the scope of the technical solutions of the present disclosure shall fall within the scope of the present dis- closure claimed by the appended claims.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2032180A NL2032180B1 (en) | 2022-06-15 | 2022-06-15 | Water-based microcellular foaming pvc coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL2032180A NL2032180B1 (en) | 2022-06-15 | 2022-06-15 | Water-based microcellular foaming pvc coating and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL2032180B1 true NL2032180B1 (en) | 2023-12-21 |
Family
ID=82594599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL2032180A NL2032180B1 (en) | 2022-06-15 | 2022-06-15 | Water-based microcellular foaming pvc coating and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL2032180B1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109082035A (en) * | 2018-08-08 | 2018-12-25 | 蚌埠市鑫晟新材料科技有限公司 | A kind of anti-aging PVC wallboard and its processing technology |
| CN109265857A (en) * | 2018-08-08 | 2019-01-25 | 蚌埠市鑫晟新材料科技有限公司 | A kind of safe environment protection type PVC buckle and its processing method |
-
2022
- 2022-06-15 NL NL2032180A patent/NL2032180B1/en active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109082035A (en) * | 2018-08-08 | 2018-12-25 | 蚌埠市鑫晟新材料科技有限公司 | A kind of anti-aging PVC wallboard and its processing technology |
| CN109265857A (en) * | 2018-08-08 | 2019-01-25 | 蚌埠市鑫晟新材料科技有限公司 | A kind of safe environment protection type PVC buckle and its processing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2020143162A1 (en) | Ultra-light graphene rubber foaming colloidal particle for shoe sole and preparation method therefor | |
| CN102964933B (en) | A kind of aqueous insulation insulating moulding coating and preparation method thereof | |
| CZ292351B6 (en) | Process for preparing expandable styrene polymers containing graphite particles | |
| CN108192467A (en) | A kind of phase-change thermal storage coating and preparation method and application | |
| CN115259775B (en) | Super-heat-preservation foam concrete and preparation method thereof | |
| CN103242541B (en) | Preparation method of acrylic-resin-modified water-based nitrocellulose emulsion for paint | |
| CN106220996A (en) | The preparation method of silicon white carbon black/composite polyolefine material | |
| CN106589362A (en) | Polyaniline nano particle/two-dimensional layered titanium carbide composite material and low-temperature preparation method of polyaniline nano particle/two-dimensional layered titanium carbide composite material | |
| CN107266941A (en) | A kind of method of modifying for the Nano carbon white for being used as gum filler | |
| CN107022102B (en) | Preparation method of monodisperse mesoporous silica, nano composite foaming agent, preparation method and application | |
| NL2032180B1 (en) | Water-based microcellular foaming pvc coating and preparation method thereof | |
| CN109847723A (en) | A kind of preparation method that polyvinyl alcohol/ZIF-8 is composite porous | |
| CN106633050A (en) | Rodlike polyaniline load modified titanium carbide and low-temperature preparation method thereof | |
| TW201307208A (en) | Micro-scaled flake silver particles and method for producing the same | |
| CN102898672B (en) | Microporous foamed-plastic foaming agent and preparation method thereof | |
| CN111978037B (en) | Environment-friendly light full-decoration ground heating mortar | |
| CN106746811B (en) | A kind of no retarder water resistance ammonium magnesium phosphate cement and preparation method thereof | |
| CN107226675A (en) | Preparation method of novel energy-saving flame-retardant building material | |
| CN108529954A (en) | A kind of hydrophobic type foamed polystyrene concrete and preparation method thereof | |
| CN104403218A (en) | Modified plastic extruded board and manufacturing method thereof | |
| CN105860392A (en) | Preparation method of polyvinyl alcohol-based sponge material | |
| JP5290039B2 (en) | Foaming aid composition | |
| CN113214527A (en) | Preparation method of high-strength XPS (extruded polystyrene) heat insulation board | |
| CN112777937A (en) | Microporous foamed glass prepared by taking waste glass as main raw material | |
| CN112830708A (en) | Efficient self-compensation hydration heat regulating agent and preparation method and application thereof |