CN111978658A - Preparation and application of corrugated unplasticized polyvinyl chloride modified waterproof board - Google Patents
Preparation and application of corrugated unplasticized polyvinyl chloride modified waterproof board Download PDFInfo
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- CN111978658A CN111978658A CN202010838448.6A CN202010838448A CN111978658A CN 111978658 A CN111978658 A CN 111978658A CN 202010838448 A CN202010838448 A CN 202010838448A CN 111978658 A CN111978658 A CN 111978658A
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- polyvinyl chloride
- unplasticized polyvinyl
- chloride modified
- waterproof board
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- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 15
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 15
- 239000006057 Non-nutritive feed additive Substances 0.000 claims abstract description 9
- 239000003381 stabilizer Substances 0.000 claims abstract description 9
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims description 9
- 238000003825 pressing Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 5
- 229920000178 Acrylic resin Polymers 0.000 claims description 4
- 239000004925 Acrylic resin Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims description 4
- 238000009751 slip forming Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 claims description 2
- 238000005253 cladding Methods 0.000 claims 1
- 238000002485 combustion reaction Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 3
- 239000010426 asphalt Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 8
- 239000000835 fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 239000004609 Impact Modifier Substances 0.000 description 1
- 229920012485 Plasticized Polyvinyl chloride Polymers 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/17—Ventilation of roof coverings not otherwise provided for
- E04D13/172—Roof insulating material with provisions for or being arranged for permitting ventilation of the roof covering
-
- 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
- C08L2201/02—Flame or fire retardant/resistant
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Civil Engineering (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention providesThe preparation method and the application of the corrugated unplasticized polyvinyl chloride modified waterproof board comprise the following steps: 60-70 parts of PVC, 8-13 parts of chlorinated polyethylene, 20-30 parts of calcium carbonate and 3-5 parts of a stabilizer; 1-2 parts of processing aid, and the product performance of the waterproof board is as follows: the longitudinal tension should not be less than 800N. Flexibility: bending the plate at 10 ℃ around the radius of 35mm, and having no surface cracks. Heat resistance: no flow at 100 ℃ for 2 h. Carrying property: 700/m2The load, deflection should not exceed 3.1 mm. Combustion performance: and should not be below B1 level.
Description
Technical Field
The present invention relates to building material technology, and is especially one kind of wave waterproof material with waterproof and ventilating effect for permanent hard slope roofing of industrial and civil building.
Background
1. The conventional fiber reinforced corrugated asphalt waterproof board is limited in longitudinal tension, high temperature resistance and combustion resistance due to the base material.
2. As a lower coating layer with waterproof and ventilating functions, namely a corrugated waterproof board material, of various roof tiles, a corrugated unplasticized polyvinyl chloride modified waterproof board has the advantages that the tensile property, the high and low temperature resistance, the combustion resistance and the like are obviously improved besides various properties of the traditional plant fiber reinforced asphalt corrugated waterproof board.
3. The corrugated unplasticized polyvinyl chloride modified waterproof board has fixed length (limited by a pressing mould, generally 2 meters) of the modified corrugated asphalt modified waterproof board, and can be selected according to various lengths of actual conditions
4. The corrugated non-plasticized polyvinyl chloride modified waterproof board is suitable for sloping roofs with structural base layers of cast-in-place reinforced concrete plates and lower covering layers for water prevention and ventilation of sloping roofs with purlin systems. The corrugated asphalt modified waterproof board can replace the traditional corrugated asphalt modified waterproof board in buildings such as flat slope changing, new rural house reconstruction, villa groups, leisure villages and the like, and has wide prospect.
Disclosure of Invention
The invention aims to solve the technical problems of the existing fiber reinforced corrugated asphalt waterproof board, and provides a preparation method and application of a corrugated unplasticized polyvinyl chloride modified waterproof board.
The invention aims to provide an unplasticized polyvinyl chloride modified corrugated waterproof board which is prepared from 60-70 parts of PVC, 8-13 parts of chlorinated polyethylene, 20-30 parts of calcium carbonate and 3-5 parts of a stabilizer in parts by weight; 1-2 parts of processing aid.
In some embodiments, the stabilizer is lead complex or calcium zinc complex.
In some embodiments, the processing aid is an acrylic resin.
In some embodiments, the wave height of the wave-shaped waterproof board is 20mm to 25mm, and the wave distance is 40mm to 80 mm.
The invention also aims to provide a preparation method of the unplasticized polyvinyl chloride modified corrugated waterproof board, which comprises the steps of weighing and mixing raw materials, extruding by an extruder, rolling and embossing double-sided patterns, forming a corrugated forming traction block, and sawing according to a set length; the method specifically comprises the following steps:
a. according to the mass parts, 60-70 parts of PVC, 8-13 parts of chlorinated polyethylene, 20-30 parts of calcium carbonate, 3-5 parts of stabilizer and 1-2 parts of processing aid are mixed by a high-speed mixer and cooled by a low-speed mixer to prepare a mixture for later use, wherein the high-speed mixing temperature is set to be 170-180 ℃, and the low-speed mixing temperature is set to be 40-55 ℃;
b. adding the mixture into a double-screw extruder, plasticizing the raw materials by heating and shearing, and extruding a parison from a clothes rack type die neck mold, wherein the plasticizing temperature of a cylinder zone of the double-screw extruder is 170-180 ℃;
c. pressing patterns on the upper surface and the lower surface of a parison extruded from a neck ring mold through double rollers with temperature control, wherein the temperature of the double rollers is controlled to be 50-65 ℃;
d. carrying out waveform pressing forming on the parison pressed by the double-roll patterns by a waveform forming traction block with linear speed synchronous with double rolls to obtain cooling and shaping;
e. and sawing the continuously formed unplasticized polyvinyl chloride modified corrugated waterproof board according to the required length to obtain the corrugated unplasticized polyvinyl chloride modified waterproof board.
The performance of the corrugated unplasticized polyvinyl chloride modified waterproof board obtained by the method meets the following requirements: the longitudinal tension should not be less than 800N. Flexibility: bending the plate at 10 ℃ around the radius of 35mm, and having no surface cracks. Heat resistance: no flow at 100 ℃ for 2 h.
Carrying property: 700/m2 load, the deflection should not exceed 3.1 mm. Combustion performance: and should not be below B1 level.
It is still another object of the present invention to apply a corrugated unplasticized polyvinyl chloride modified waterproof sheet as described above to permanent hard pitched roofing underlayments for industrial and civil buildings, which have waterproof and ventilating effects.
The invention has the following beneficial effects:
(1) the PVC resin is a rigid high polymer material, and the tensile property and the heat resistance of the modified unplasticized polyvinyl chloride product are obviously improved compared with those of a modified asphalt base material;
(2) the toughness and low temperature resistance of the product are guaranteed by adding the impact modifier chlorinated polyethylene into the PVC resin;
(3) by adding calcium carbonate into PVC resin, the rigidity of the product and the dimensional stability along with the change of environmental temperature are improved;
(4) the polyvinyl chloride product without the plasticizer has flame retardant property due to the molecular structure of polyvinyl chloride, can reach the flame retardant level (B1 level), and has natural advantages compared with modified asphalt.
Drawings
FIG. 1 is a schematic diagram of a product of an unplasticized polyvinyl chloride modified corrugated waterproof sheet;
fig. 2 is a partial schematic view of a product of unplasticized polyvinyl chloride modified corrugated flashing.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example 1
a. 70 parts of PVC, 8 parts of chlorinated polyethylene, 20 parts of calcium carbonate and 5 parts of stabilizer composite calcium and zinc; 2 parts of the processing aid acrylic resin are weighed and then mixed by a high-speed mixer and cooled by a low-speed mixer to prepare a mixture for later use; the high-speed mixing temperature is set to be 170 ℃, and the low-speed mixing temperature is set to be 40 ℃;
b. adding the mixture into a double-screw extruder, plasticizing the raw materials by heating and shearing, and extruding a parison from a clothes rack type die; the plasticizing temperature of a cylinder zone of the double-screw extruder is 180 ℃;
c. pressing patterns on the upper surface and the lower surface of a parison extruded by a neck ring mold through double rollers with temperature control; the temperature is controlled to be 50 ℃ by double rollers;
d. carrying out waveform pressing forming on the parison pressed by the double-roll patterns by a waveform forming traction block with linear speed synchronous with double rolls to obtain cooling and shaping;
e. sawing the continuously formed unplasticized polyvinyl chloride modified corrugated waterproof board according to the required length to obtain the corrugated unplasticized polyvinyl chloride modified waterproof board;
f. the wave-shaped unplasticized polyvinyl chloride modified waterproof board is shown in figures 1 and 2, the wave height is 20 mm-25 mm, and the wave distance is 40 mm-80 mm.
In the embodiment, the twin-screw extruder is an 80-type or 85-type conical twin-screw extruder or a 90-type flat twin-screw extruder according to the extrusion amount of the product estimated according to actual production requirements.
Example 2
a. The material comprises the following components, by weight, 60 parts of PVC, 13 parts of chlorinated polyethylene, 30 parts of calcium carbonate and 3 parts of stabilizer composite lead; 1 part of the processing aid acrylic resin is weighed and then mixed by a high-speed mixer and cooled by a low-speed mixer to prepare a mixture for later use; setting the high-speed mixing temperature to be 180 ℃ and the low-speed mixing temperature to be 55 ℃;
b. adding the mixture into a double-screw extruder, plasticizing the raw materials by heating and shearing, and extruding a parison from a clothes rack type die; the plasticizing temperature of a cylinder zone of the double-screw extruder is 170 ℃;
c. pressing patterns on the upper surface and the lower surface of a parison extruded by a neck ring mold through double rollers with temperature control; the temperature is controlled to be 65 ℃ by double rollers;
d. carrying out waveform pressing forming on the parison pressed by the double-roll patterns by a waveform forming traction block with linear speed synchronous with double rolls to obtain cooling and shaping;
e. sawing the continuously formed unplasticized polyvinyl chloride modified corrugated waterproof board according to the required length to obtain the corrugated unplasticized polyvinyl chloride modified waterproof board;
f. the wave height of the wave-shaped unplasticized polyvinyl chloride modified waterproof board is 20-25 mm, and the wave distance is 40-80 mm.
In the embodiment, the twin-screw extruder is an 80-type or 85-type conical twin-screw extruder or a 90-type flat twin-screw extruder according to the extrusion amount of the product estimated according to actual production requirements.
The waterproof sheets obtained in examples 1 and 2 meet the following performance requirements:
the longitudinal tension is not less than 800N.
Flexibility: bending the plate at 10 ℃ around the radius of 35mm, and having no surface cracks.
Heat resistance: no flow at 100 ℃ for 2 h.
Carrying property: 700/m2 load, the deflection should not exceed 3.1 mm.
Combustion performance: not lower than B1 grade.
The polyvinyl chloride is a thermoplastic material, and is a modified PVC material, so that the continuity of production and processing of the product is endowed; the high molecular material polyvinyl chloride endows the asphalt modified product with the characteristics of high temperature resistance, high tensile strength and low combustion performance, is used as a waveform waterproof material which plays a role in water resistance and ventilation and is used as a permanent hard pitched roof lower coating of industrial and civil buildings, and can be widely applied to the transformation of old houses in cities and countryside.
Claims (6)
1. An unplasticized polyvinyl chloride modified corrugated waterproof board is characterized by comprising, by mass, 60-70 parts of PVC, 8-13 parts of chlorinated polyethylene, 20-30 parts of calcium carbonate and 3-5 parts of a stabilizer; 1-2 parts of processing aid.
2. The unplasticized polyvinyl chloride modified wave flashing as claimed in claim 1, wherein the stabilizer is composite lead or composite calcium zinc.
3. The unplasticized polyvinyl chloride modified flashing sheet of claim 1, wherein the processing aid is an acrylic resin.
4. The unplasticized polyvinyl chloride modified wave flashing of claim 1, wherein the wave height of the wave flashing is 20mm to 25mm and the wave pitch is 40mm to 80 mm.
5. The method for preparing unplasticized polyvinyl chloride modified corrugated waterproof board according to any one of claims 1 to 4, comprising the steps of:
a. according to the mass parts, 60-70 parts of PVC, 8-13 parts of chlorinated polyethylene, 20-30 parts of calcium carbonate, 3-5 parts of stabilizer and 1-2 parts of processing aid are mixed by a high-speed mixer and cooled by a low-speed mixer to prepare a mixture for later use, wherein the high-speed mixing temperature is set to be 170-180 ℃, and the low-speed mixing temperature is set to be 40-55 ℃;
b. adding the mixture into a double-screw extruder, plasticizing the raw materials by heating and shearing, and extruding a parison from a clothes rack type die neck mold, wherein the plasticizing temperature of a cylinder zone of the double-screw extruder is 170-180 ℃;
c. pressing patterns on the upper surface and the lower surface of a parison extruded from a neck ring mold through double rollers with temperature control, wherein the temperature of the double rollers is controlled to be 50-65 ℃;
d. carrying out waveform pressing forming on the parison pressed by the double-roll patterns by a waveform forming traction block with linear speed synchronous with double rolls to obtain cooling and shaping;
e. and sawing the continuously formed unplasticized polyvinyl chloride modified corrugated waterproof board according to the required length to obtain the corrugated unplasticized polyvinyl chloride modified waterproof board.
6. Use of the unplasticized polyvinyl chloride modified wave-shaped waterproof sheet according to any one of claims 1 to 4 in a hard pitched roof cladding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838448.6A CN111978658A (en) | 2020-08-19 | 2020-08-19 | Preparation and application of corrugated unplasticized polyvinyl chloride modified waterproof board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010838448.6A CN111978658A (en) | 2020-08-19 | 2020-08-19 | Preparation and application of corrugated unplasticized polyvinyl chloride modified waterproof board |
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| CN111978658A true CN111978658A (en) | 2020-11-24 |
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| CN202010838448.6A Pending CN111978658A (en) | 2020-08-19 | 2020-08-19 | Preparation and application of corrugated unplasticized polyvinyl chloride modified waterproof board |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597763A (en) * | 2004-08-18 | 2005-03-23 | 上海氯碱化工股份有限公司 | Composite of full filled unplasticizing polyvinyl chloride/calcium carbonate and preparation process thereof |
| CN102850699A (en) * | 2012-09-28 | 2013-01-02 | 北京奥宇模板有限公司 | Modified polyvinyl chloride (PVC) for producing building template |
| US20190112464A1 (en) * | 2017-10-13 | 2019-04-18 | Shin-Etsu Chemical Co., Ltd. | Polyvinyl chloride-based resin molded product and method for manufacturing the same |
-
2020
- 2020-08-19 CN CN202010838448.6A patent/CN111978658A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1597763A (en) * | 2004-08-18 | 2005-03-23 | 上海氯碱化工股份有限公司 | Composite of full filled unplasticizing polyvinyl chloride/calcium carbonate and preparation process thereof |
| CN102850699A (en) * | 2012-09-28 | 2013-01-02 | 北京奥宇模板有限公司 | Modified polyvinyl chloride (PVC) for producing building template |
| US20190112464A1 (en) * | 2017-10-13 | 2019-04-18 | Shin-Etsu Chemical Co., Ltd. | Polyvinyl chloride-based resin molded product and method for manufacturing the same |
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Application publication date: 20201124 |