CN117247618A - Raw material composition for producing waterproof material, preparation method and application thereof - Google Patents
Raw material composition for producing waterproof material, preparation method and application thereof Download PDFInfo
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- CN117247618A CN117247618A CN202311250438.0A CN202311250438A CN117247618A CN 117247618 A CN117247618 A CN 117247618A CN 202311250438 A CN202311250438 A CN 202311250438A CN 117247618 A CN117247618 A CN 117247618A
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- 239000000463 material Substances 0.000 title claims abstract description 90
- 239000000203 mixture Substances 0.000 title claims abstract description 29
- 239000002994 raw material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title abstract description 11
- -1 polyethylenes Polymers 0.000 claims abstract description 43
- 239000004698 Polyethylene Substances 0.000 claims abstract description 20
- 239000004743 Polypropylene Substances 0.000 claims abstract description 20
- 229920000573 polyethylene Polymers 0.000 claims abstract description 20
- 229920001155 polypropylene Polymers 0.000 claims abstract description 20
- 229920006124 polyolefin elastomer Polymers 0.000 claims abstract description 17
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 15
- 239000000155 melt Substances 0.000 claims description 11
- 229920001577 copolymer Polymers 0.000 claims description 10
- 238000004078 waterproofing Methods 0.000 claims description 10
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000003490 calendering Methods 0.000 claims description 8
- 239000004595 color masterbatch Substances 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 230000006911 nucleation Effects 0.000 claims description 6
- 238000010899 nucleation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- KMOUUZVZFBCRAM-OLQVQODUSA-N (3as,7ar)-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione Chemical compound C1C=CC[C@@H]2C(=O)OC(=O)[C@@H]21 KMOUUZVZFBCRAM-OLQVQODUSA-N 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920005629 polypropylene homopolymer Polymers 0.000 claims description 3
- 239000005871 repellent Substances 0.000 claims description 3
- CNFTYYKCUPPMIJ-UHFFFAOYSA-N 2,3-dicyclohexylbenzene-1,4-dicarboxamide Chemical compound C1CCCCC1C=1C(C(=O)N)=CC=C(C(N)=O)C=1C1CCCCC1 CNFTYYKCUPPMIJ-UHFFFAOYSA-N 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims description 2
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 abstract 2
- 230000000052 comparative effect Effects 0.000 description 12
- 229920001903 high density polyethylene Polymers 0.000 description 7
- 239000004700 high-density polyethylene Substances 0.000 description 7
- 239000004712 Metallocene polyethylene (PE-MC) Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 5
- 229920000092 linear low density polyethylene Polymers 0.000 description 5
- 239000004707 linear low-density polyethylene Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
-
- 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
- C08L2205/24—Crystallisation aids
- C08L2205/242—Beta spherulite nucleating agents
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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 relates to the field of waterproof coiled materials, and discloses a raw material composition for producing a waterproof material, the waterproof material, a preparation method and application thereof. The raw material composition contains the following components which are stored independently or stored by mixing more than two of the components: metallocene catalyzed polyethylenes, polypropylenes, polyolefin elastomers, color concentrates, beta nucleating concentrates. The raw material composition for producing the waterproof material has the advantages of simple and easily obtained components, low price and strong practicability, the waterproof material prepared by adopting the raw material composition provided by the invention is simple in preparation process, and meanwhile, the obtained waterproof material has the advantages of high tensile strength, high toughness, high puncture resistance and good processability.
Description
Technical Field
The invention relates to the field of waterproof coiled materials, in particular to a raw material composition for producing a waterproof material, the waterproof material, a preparation method and application thereof.
Background
At present, the main material of the P-type pre-laid waterproof coiled material is a polymer sheet, and the main raw material for producing the polymer sheet is polyethylene, wherein the polyethylene mainly comprises high-density polyethylene and linear low-density polyethylene. In the first category, high-density polyethylene is used as a main raw material, and the produced sheet has higher tensile strength, but with the increase of the content of the high-density polyethylene, the produced sheet is easy to curl and rebound and is more difficult to process. The second category, the linear low density polyethylene is used as the main raw material, the produced sheet has higher toughness, but the indexes of the produced sheet such as tensile strength, puncture resistance and the like are lower, and the requirements are difficult to meet.
CN115304844a discloses a high-density polyethylene waterproof sheet, which comprises the following raw materials in parts by weight: 100 parts by weight of high-density polyethylene, 60-70 parts by weight of linear low-density polyethylene, 40-50 parts by weight of polypropylene, 5-20 parts by weight of olefin copolymer elastomer, 0.2-0.3 part by weight of foaming agent and 13 parts by weight of nucleating agent. In the prior art, although the high-density polyethylene and the linear low-density polyethylene are mixed and applied, the obtained product mainly has the functions of noise reduction and shock absorption, and the puncture resistance is not improved.
CN106519420a discloses a root penetration resistant metallocene polyethylene sheet, a self-adhesive coiled material and a preparation method, wherein the preparation method of the metallocene polyethylene sheet comprises the following steps: under certain conditions, mixing metallocene polyethylene resin, EVA resin, an antioxidant, carbon black resin and a reinforcing agent to obtain a base material, preheating the base material by an extruder, extruding, calendering by a three-roller machine, compounding seven layers of co-extrusion isolating films, cooling and shaping, and carrying out traction and crimping to obtain a metallocene polyethylene sheet; the preparation method of the self-adhesive coiled material comprises the steps of adding asphalt, SBS, SBR, aromatic hydrocarbon oil, light calcium and tackifier into a stirring tank under certain conditions, stirring to obtain a self-adhesive sizing material, and then coating the prepared self-adhesive sizing material on a metallocene polyethylene sheet to obtain a final product. The self-adhesive coiled material prepared by the prior art has good strength, flexibility and puncture resistance, but the preparation method provided by the prior art has very complex production and processing processes and high industrialization cost.
Disclosure of Invention
The invention aims to overcome the defect that the existing waterproof material is difficult to achieve high tensile strength, high toughness and high puncture resistance.
In order to achieve the above object, a first aspect of the present invention provides a raw material composition for producing a waterproof material, the raw material composition comprising the following components stored independently or in a mixture of two or more of them:
metallocene catalyzed polyethylene, polypropylene, polyolefin elastomer, masterbatch, beta nucleation masterbatch;
the content of the polypropylene is 50-125 parts by weight, the content of the polyolefin elastomer is 16-50 parts by weight, the content of the color master batch is 3-10 parts by weight, and the content of the beta-nucleating master batch is 0.5-5 parts by weight relative to 100 parts by weight of the metallocene-catalyzed polyethylene;
the metallocene catalyzed polyethylene has a tensile yield stress of 14-18MPa, a melt index of 2.0-3.0g/10min at 190 ℃ under a load of 2.16kg, and a density of 0.93-0.94g/cm 3 ；
The polyolefin elastomer is at least one of ethylene-octene copolymer, ethylene-hexene copolymer and ethylene-butene copolymer.
In a second aspect, the present invention provides a method for producing a waterproof material, the method being carried out using the components of the raw material composition described in the first aspect, comprising:
(1) Mixing all the components in the raw material composition to obtain a material I;
(2) Introducing the material I into a screw extruder for melt extrusion treatment to obtain a material II;
(3) And carrying out calendaring and shaping treatment on the material II to obtain the waterproof material.
A third aspect of the present invention provides a waterproofing material prepared by the method of the foregoing second aspect.
A fourth aspect of the present invention provides the use of the waterproofing material described in the foregoing third aspect in a waterproofing membrane.
Compared with the prior art, the technical scheme provided by the invention has at least the following advantages:
(1) The raw material composition for producing the waterproof material provided by the invention has the advantages of simple and easily obtained components, low price and strong practicability;
(2) The waterproof material prepared by adopting the metallocene catalyzed polyethylene provided by the invention as a base material and matching with other raw material compositions has the advantages of simple preparation process, high tensile strength, good longitudinal and transverse strength uniformity, high puncture resistance and good processability.
Detailed Description
The endpoints and any values of the ranges disclosed herein are not limited to the precise range or value, and are understood to encompass values approaching those ranges or values. For numerical ranges, one or more new numerical ranges may be found between the endpoints of each range, between the endpoint of each range and the individual point value, and between the individual point value, in combination with each other, and are to be considered as specifically disclosed herein.
It should be noted that, in the aspects of the present invention, the present invention is described only once in one aspect thereof without repeated description with respect to the same components or terms in the aspects, and those skilled in the art should not understand the limitation of the present invention.
As described above, the first aspect of the present invention provides a raw material composition for producing a waterproof material, the raw material composition comprising the following components stored independently or in a mixture of two or more of them:
metallocene catalyzed polyethylene, polypropylene, polyolefin elastomer, masterbatch, beta nucleation masterbatch;
the content of the polypropylene is 50-125 parts by weight, the content of the polyolefin elastomer is 16-50 parts by weight, the content of the color master batch is 3-10 parts by weight, and the content of the beta-nucleating master batch is 0.5-5 parts by weight relative to 100 parts by weight of the metallocene-catalyzed polyethylene;
the metallocene catalyzed polyethylene has a tensile yield stress of 14-18MPa, a melt index of 2.0-3.0g/10min at 190 ℃ and 2.16kg, and a density of 0.93-0.94g/cm 3 ；
The polyolefin elastomer is at least one of ethylene-octene copolymer, ethylene-hexene copolymer and ethylene-butene copolymer.
In the invention, the method for measuring the tensile yield stress of the metallocene-catalyzed polyethylene is referred to GB/T1040.2-2006.
Preferably, the melt index of the beta nucleating master batch is 8.0-15.0g/10min under the conditions of 230 ℃ and 2.16kg load, and the ash content is less than or equal to 1.5wt%. The inventor of the invention discovers that in the preferable situation, the waterproof material provided by the invention is favorable for forming an internal microcrystalline structure, and further plays a role in refining grains, so that the prepared waterproof material has higher strength and toughness.
Preferably, the beta nucleation master batch is selected from at least one of carboxylic acid metal salt of tetrahydrophthalic anhydride, dicyclohexyl terephthalamide and rare earth lanthanide series mononuclear metal compound.
Particularly preferably, the beta nucleating master batch is a metal carboxylate salt of tetrahydrophthalic anhydride. The inventors of the present invention found that in this preferred case, the waterproof material provided by the present invention is superior in strength and toughness.
It is further preferred that the content of the beta-nucleating masterbatch is 1 to 3 parts by weight relative to 100 parts by weight of the metallocene-catalyzed polyethylene. The inventors of the present invention found that in this preferred case, the waterproof material provided by the present invention is superior in strength and toughness.
Preferably, the particle average diameter of the beta nucleating master batch is 2.0-4.0mm.
Preferably, the polypropylene has a density of 0.89-0.91g/cm 3 The melt index under the conditions of 230 ℃ and 2.16kg load is 1.0-4.0g/10min.
Preferably, the polypropylene is at least one selected from the group consisting of homo-polypropylene, block-copolymerized polypropylene and random-copolymerized polypropylene.
Preferably, the polypropylene is a homo-polypropylene. The inventors of the present invention found that in this preferred case, the waterproof material provided by the present invention has higher strength.
Preferably, the polyolefin elastomer has a tensile modulus of 2 to 4MPa and a melting temperature of 50 to 70 ℃.
In the present invention, the method for measuring the tensile modulus of the polyolefin elastomer is referred to ASTM D638.
Preferably, the polyolefin elastomer is an ethylene-octene copolymer. The inventors of the present invention found that in this preferred case, the waterproof material provided by the present invention has higher tensile strength, toughness and puncture resistance.
Preferably, the color master batch is a white master batch, and the average diameter of the particles is 2.0-4.0mm.
It should be noted that, the color and the type of the color master batch adopted by the invention are not particularly required, those skilled in the art can use the color master batch known in the art, and the white master batch is used for preparing the white waterproof material by combining with other characteristics of the technical scheme provided by the invention, and the invention is not repeated herein, and the person skilled in the art should not understand the limitation of the invention.
As described above, the second aspect of the present invention provides a method for producing a waterproof material, the method being carried out using the components of the raw material composition described in the first aspect, comprising:
(1) Mixing all the components in the raw material composition to obtain a material I;
(2) Introducing the material I into a screw extruder for melt extrusion treatment to obtain a material II;
(3) And carrying out calendaring and shaping treatment on the material II to obtain the waterproof material.
Preferably, in the step (1), the temperature of the mixing treatment is 70-90 ℃ and the time is 20-90min.
It should be noted that, the apparatus and mode of the mixing treatment are not particularly required in the present invention, those skilled in the art may use technical means known in the art to operate, and, for example, the components in the raw material composition are introduced into the mixing apparatus to mix, and the operating parameters of the mixing apparatus are not particularly required in the present invention, which is not repeated herein, and those skilled in the art should not understand that the present invention is limited.
Preferably, in step (2), the processing temperature of the melt during the melt extrusion treatment is 210-230 ℃.
Preferably, in the step (2), the main machine rotation speed of the screw extruder is 10-25rpm, and the length-diameter ratio of the screw is 32-35:1.
it should be noted that the type of the screw extruder and the way of introducing the mixed material into the screw extruder are not particularly limited in the present invention, and those skilled in the art can use the technical means known in the art to operate, and the present invention will hereinafter be exemplified to provide a preferred embodiment, and the present invention will not be construed as being limited by those skilled in the art, by using a vacuum suction machine to suck the mixed material into the hopper, and then by using the dead weight or under the action of the forced feeder, into the space of the screw groove of the screw extruder, and then extruding the mixed material forward under the pushing of the screw edge.
Preferably, in the step (3), the calendaring and shaping treatment temperature is 45-65 ℃.
Preferably, in the step (3), the material II is subjected to calendaring and shaping treatment by adopting a three-roll calendar.
Preferably, the thickness of the waterproof material obtained by the calendaring and shaping treatment is 1-2mm.
It should be noted that, the operation parameters of the three-roll calender are not particularly required, and those skilled in the art can use technical means known in the art to operate, so that the present invention is not described herein in detail, and those skilled in the art should not understand the limitation of the present invention.
As described above, the third aspect of the present invention provides a waterproof material produced by the method of the second aspect.
As described above, the fourth aspect of the present invention provides the use of the waterproofing material described in the foregoing third aspect in a waterproofing membrane.
Preferably, the waterproof coiled material is a P-type pre-paved waterproof coiled material.
Preferably, the waterproofing material is applied as a main material in the waterproofing membrane.
The invention will be described in detail below by way of examples. In the following examples, all the raw materials used were commercial products unless otherwise specified.
The raw materials and sources used in the following examples are shown in table 1:
TABLE 1
In the examples below, unless otherwise specified, 25g is indicated per "part" or per "part by weight".
A single screw extruder, screw aspect ratio of 35:1, was purchased from gold weft sheet film technologies Inc. of Hemsy.
Three roll calenders were purchased from gold weft sheet film technologies, ltd.
Example 1
This example illustrates the waterproofing material of the present invention using the formulation and process parameters of table 2 and was prepared as follows. Comprising the following steps:
(1) Mixing metallocene catalyzed polyethylene, polypropylene, polyolefin elastomer, masterbatch and beta nucleating masterbatch to obtain a material I;
(2) Introducing the material I into a single screw extruder for melt extrusion treatment to obtain a material II;
(3) And (3) carrying out calendaring and shaping treatment on the material II to obtain the waterproof material, wherein the waterproof material is named as P1.
The remaining examples were carried out in a similar manner to example 1, except that the formulation and process parameters were varied, unless otherwise specified, as specifically described in Table 2.
TABLE 2
Example 8
This example was conducted in a similar manner to example 1 except that:
in the embodiment, the beta-nucleating master batch I is replaced by the beta-nucleating master batch II with equal weight parts, and the waterproof material is prepared and named as P8.
Example 9
This example was conducted in a similar manner to example 1 except that:
in this example, polypropylene I was replaced with polypropylene II of equal weight parts to prepare a waterproof material designated as P9.
Example 10
This example was conducted in a similar manner to example 1 except that:
in this example, the polyolefin elastomer I was replaced with the same weight part of the polyolefin elastomer II to prepare a waterproof material designated as P10.
Comparative example 1
This comparative example was conducted in a similar manner to example 1 except that:
the amount of the beta-nucleating master batch I in this comparative example was 10 parts by weight, and a waterproof material was prepared and designated as DP1.
Comparative example 2
This comparative example was conducted in a similar manner to example 1 except that:
in this comparative example, the beta-nucleating master batch I was replaced with an equal weight portion of the alpha-nucleating master batch to prepare a waterproof material designated DP2.
Comparative example 3
This comparative example was conducted in a similar manner to example 1 except that:
in this comparative example, the metallocene-catalyzed polyethylene I was replaced with the same weight part of the metallocene-catalyzed polyethylene II to prepare a waterproof material designated as DP3.
Comparative example 4
This comparative example was conducted in a similar manner to example 1 except that:
in the comparative example, the metallocene-catalyzed polyethylene I was replaced with a combination of equal parts by weight of high-density polyethylene and linear low-density polyethylene, the mass ratio of which was 1:0.7, to prepare a waterproof material designated as DP4.
Test example 1
The waterproof materials prepared above were tested for tensile properties and puncture resistance strength respectively with reference to standard GB/T23457-2017, and specific results are shown in Table 3.
TABLE 3 Table 3
The comprehensive performance coefficient of the waterproof material provided by the invention is calculated according to the following mode, and the specific results are shown in Table 4:
k-the coefficient of comprehensive performance;
σ longitudinal direction Longitudinal tensile strength, sigma Transverse direction -transverse tensile strength;
σ p1 longitudinal direction Longitudinal tensile Strength, σ of example 1 P1 horizontal Transverse tensile strength of example 1;
ε longitudinal direction Elongation at break in machine direction, ε Transverse direction Elongation at break in transverse direction;
ε p1 longitudinal direction Elongation at break in machine direction, ε, of example 1 P1 horizontal Elongation at break in transverse direction of example 1;
t-puncture resistance, T P1 Puncture resistance strength of example 1.
TABLE 4 Table 4
| Type of water-repellent material | P1 | P2 | P3 | P4 | P5 | P6 | P7 |
| Coefficient of comprehensive performance | 5.000 | 5.004 | 5.065 | 4.857 | 4.882 | 4.865 | 4.873 |
| Type of water-repellent material | P8 | P9 | P10 | DP1 | DP2 | DP3 | DP4 |
| Coefficient of comprehensive performance | 4.888 | 4.932 | 4.885 | 4.768 | 4.764 | 4.687 | 4.630 |
The waterproof material provided by the invention has the advantages of high tensile strength, high toughness and high puncture resistance, and is simple in preparation process, convenient to operate, easy to process and higher in market value and economic value.
The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, a number of simple variants of the technical solution of the invention are possible, including combinations of the individual technical features in any other suitable way, which simple variants and combinations should likewise be regarded as being disclosed by the invention, all falling within the scope of protection of the invention.
Claims (10)
1. A raw material composition for producing a waterproof material, characterized in that the raw material composition contains the following components which are stored independently or in a mixed state of two or more:
metallocene catalyzed polyethylene, polypropylene, polyolefin elastomer, masterbatch, beta nucleation masterbatch;
the content of the polypropylene is 50-125 parts by weight, the content of the polyolefin elastomer is 16-50 parts by weight, the content of the color master batch is 3-10 parts by weight, and the content of the beta-nucleating master batch is 0.5-5 parts by weight relative to 100 parts by weight of the metallocene-catalyzed polyethylene;
the metallocene catalyzed polyethylene has a tensile yield stress of 14-18MPa, a melt index of 2.0-3.0g/10min at 190 ℃ under a load of 2.16kg, and a density of 0.93-0.94g/cm 3 ；
The polyolefin elastomer is at least one of ethylene-octene copolymer, ethylene-hexene copolymer and ethylene-butene copolymer.
2. The feedstock composition according to claim 1, wherein the beta-nucleating masterbatch has a melt index of 8.0-15.0g/10min at 230 ℃, ash content of less than or equal to 1.5wt% at a load of 2.16 kg;
and/or the beta nucleation master batch is selected from at least one of carboxylic acid metal salt of tetrahydrophthalic anhydride, dicyclohexyl terephthalamide and rare earth lanthanide series mononuclear metal compound.
3. The feedstock composition according to claim 1 or 2, wherein the content of the β -nucleating masterbatch is 1-3 parts by weight relative to 100 parts by weight of the metallocene-catalyzed polyethylene;
and/or the average particle diameter of the beta nucleation master batch is 2.0-4.0mm.
4. The raw material composition according to any one of claims 1 to 3, wherein the polypropylene is at least one selected from the group consisting of homo-polypropylene, block-copolymerized polypropylene and random-copolymerized polypropylene; and/or the number of the groups of groups,
the density of the polypropylene is 0.89-0.91g/cm 3 The melt index under the conditions of 230 ℃ and 2.16kg load is 1.0-4.0g/10min; and/or the number of the groups of groups,
the tensile modulus of the polyolefin elastomer is 2-4MPa, and the melting temperature is 50-70 ℃; and/or the number of the groups of groups,
the color master batch is white master batch, and the average diameter of the particles is 2.0-4.0mm.
5. A process for preparing a water-repellent material, characterized in that it is carried out using the components of the raw material composition according to any one of claims 1 to 4, comprising:
(1) Mixing all the components in the raw material composition to obtain a material I;
(2) Introducing the material I into a screw extruder for melt extrusion treatment to obtain a material II;
(3) And carrying out calendaring and shaping treatment on the material II to obtain the waterproof material.
6. A method according to claim 5, wherein in step (1), the temperature of the mixing treatment is 70-90 ℃ for 20-90min.
7. The method according to claim 5 or 6, wherein in step (2), during the melt extrusion treatment, a processing temperature of the melt is 210-230 ℃;
and/or in the step (2), the host machine rotation speed of the screw extruder is 10-25rpm, and the length-diameter ratio of the screw is 32-35:1.
8. the method according to any one of claims 5 to 7, wherein in step (3), the temperature of the calendaring-shaping treatment is 45 to 65 ℃.
9. A waterproof material produced by the method of any one of claims 5 to 8.
10. Use of the waterproofing material according to claim 9 in a waterproofing membrane;
and/or the waterproof coiled material is a P-type pre-paved waterproof coiled material;
and/or the waterproof material is applied as a main material in the waterproof roll.
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|---|---|
| CN (1) | CN117247618A (en) |
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|---|---|---|---|---|
| JP2000319455A (en) * | 1999-05-11 | 2000-11-21 | Bridgestone Corp | Water barrier sheet |
| WO2003033585A1 (en) * | 2001-10-15 | 2003-04-24 | Exxonmobile Chemical Patents Inc. | Polymeric membrane compositions |
| US20050027077A1 (en) * | 2003-07-28 | 2005-02-03 | Michael Musgrave | Properties of polyolefin blends and their manufactured articles |
| CN111433277A (en) * | 2017-12-20 | 2020-07-17 | 博里利斯股份公司 | Polypropylene composition |
| CN115895038A (en) * | 2022-11-18 | 2023-04-04 | 昆山科顺防水材料有限公司 | Modified basic magnesium sulfate whisker, waterproof coiled material sheet and preparation method and application thereof |
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2023
- 2023-09-26 CN CN202311250438.0A patent/CN117247618A/en active Pending
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|---|---|---|---|---|
| JP2000319455A (en) * | 1999-05-11 | 2000-11-21 | Bridgestone Corp | Water barrier sheet |
| WO2003033585A1 (en) * | 2001-10-15 | 2003-04-24 | Exxonmobile Chemical Patents Inc. | Polymeric membrane compositions |
| US20050027077A1 (en) * | 2003-07-28 | 2005-02-03 | Michael Musgrave | Properties of polyolefin blends and their manufactured articles |
| CN111433277A (en) * | 2017-12-20 | 2020-07-17 | 博里利斯股份公司 | Polypropylene composition |
| CN115895038A (en) * | 2022-11-18 | 2023-04-04 | 昆山科顺防水材料有限公司 | Modified basic magnesium sulfate whisker, waterproof coiled material sheet and preparation method and application thereof |
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| Title |
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| 黄锐等: "稀土在高分子工业中的应用", 31 July 2009, 中国轻工业出版社, pages: 178 - 180 * |
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