CN115651314A - High-bonding-strength waterproof coiled material and production method thereof - Google Patents
High-bonding-strength waterproof coiled material and production method thereof Download PDFInfo
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Abstract
The application relates to the technical field of waterproof rolls, in particular to a waterproof roll with high bonding strength and a production method thereof. Specifically, the high-bonding-strength waterproof roll comprises the following components in parts by weight: 50-80 parts of a component A; 5-20 parts of polypropylene; 10-20 parts of master batch; 15-25 parts of a compatilizer; wherein the component A comprises 1-4% of isopropyl phosphate, 2-6% of dibutyl hydroxy toluene and the balance of linear low density polyethylene. By adopting the technical scheme, the components such as linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and the like form the component A, and the component A is matched with the components such as polypropylene, master batch, compatilizer and the like, so that the obtained waterproof coiled material product has better bonding strength, and particularly has more obvious effect after being exposed to strong ultraviolet rays.
Description
Technical Field
The application relates to the technical field of waterproof coiled materials, in particular to a waterproof coiled material with high bonding strength and a production method thereof.
Background
With the social development and the increasing maturity of building technology, people have higher and higher requirements on the waterproof quality of buildings. The waterproof roll is mainly used for building walls, roofs and the like, plays a role in resisting external rainwater and preventing underground water from leaking, is a flexible building material product, is a first waterproof barrier of buildings, and plays a vital role in guaranteeing the quality of the whole project.
However, the waterproof roll in the prior art has the problem of large bending modulus, and the lap-joint bonding part is easy to separate due to stress release and the like during construction, so that the waterproof effect is poor.
Therefore, the present application is directed to a waterproof roll with high adhesive strength.
Content of application
The present application is directed to a high adhesive strength waterproof sheet and a method for manufacturing the same, which solves at least one of the problems described in the background art.
Specifically, in a first aspect of the present application, a high bonding strength waterproof roll is provided, which comprises the following components in parts by weight:
50-80 parts of a component A;
5-20 parts of polypropylene;
10-20 parts of master batch;
15-25 parts of a compatilizer;
wherein the component A comprises 1-4% of isopropyl phosphate, 2-6% of dibutyl hydroxy toluene and the balance of linear low density polyethylene.
By adopting the technical scheme, the components such as linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and the like form the component A, and the component A is matched with the components such as polypropylene, master batch, compatilizer and the like, so that the obtained waterproof coiled material product has better bonding strength, and particularly has more obvious effect after being exposed to strong ultraviolet rays.
More preferably, the component A is 60 to 70 parts; 10-15 parts of polypropylene; 15-18 parts of master batch; the compatilizer is 18-22 parts.
More preferably, the component A comprises 2 to 3 percent of isopropyl phosphate and 2.5 to 4 percent of dibutyl hydroxy toluene.
Preferably, the ratio of the isopropyl phosphate to the dibutyl hydroxytoluene content is 0.5-0.8:1.
preferably, the masterbatch is calcium carbonate or bentonite.
Preferably, the compatilizer is one or a combination of more of maleic anhydride grafted high-density polyethylene (HDPE-g-MAH), ethylene-methacrylate copolymer, maleic anhydride grafted styrene-ethylene-butadiene-styrene block copolymer elastomer (SEBS-g-MAH) and acrylic rubber powder.
Preferably, the waterproof coiled material further comprises 2-5 parts of a stabilizer. More preferably, the stabilizer may be selected from one or more of calcium zinc stabilizer, barium zinc stabilizer, calcium stearate stabilizer.
Preferably, the waterproof roll further comprises 0.3-0.8 part of light absorber. More preferably, the light absorber is 2-hydroxy-4-methoxybenzophenone.
Preferably, the component A further comprises 0.2 to 1% of high density polyethylene.
Preferably, the linear low density polyethylene has a density of 0.918 to 0.925g/cm 3 The melt index is 3.0-5.0g/10min.
In a second aspect of the present application, there is provided a method for producing a roll of waterproofing material as described in the first aspect of the present application, comprising the steps of:
drying and stirring, namely sequentially adding the metered component A, polypropylene, master batch and compatilizer into a drying and stirring tank according to the weight parts, stirring at the temperature of 100-120 ℃ for 25-30min, and outputting to a feeding hopper of an extruder;
plasticizing and extruding, wherein the extrusion temperature is controlled to be 200-250 ℃, and the speed of a setting roller is set to be 1-2m/min;
and (5) calendering and forming, namely adjusting a calendering roller to shape after controlling the thickness and the width of the sheet.
Preferably, the method for producing the component A comprises,
drying the raw materials, weighing linear low-density polyethylene, high-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene according to parts by weight, and treating for more than 12 hours at a constant temperature of 80-100 ℃ in a drying oven;
and (3) melt blending, and mixing the raw materials to form the composite material.
Preferably, the melt blending step comprises:
a premixing step, namely melting and blending the linear low-density polyethylene and the high-density polyethylene for 30-60min, and controlling the temperature to be 200-250 ℃ to obtain a premixed material;
and a total mixing step, namely mixing the premixed material with isopropyl phosphate and dibutyl hydroxy toluene for 15-30min, and controlling the temperature to be 160-200 ℃ to form the composite material.
Preferably, the method for producing the component A further comprises, after the step of melt blending, a step of applying a light intensity of 150 to 250W/m 2 Irradiating and crosslinking under ultraviolet light for 30-120min.
Preferably, the melt blending is accomplished using an internal mixer with a controller transfer of 50 to 80r/min.
In summary, the present application has the following beneficial effects:
1. the application provides a waterproofing membrane, through making components such as linear low density polyethylene, isopropyl phosphate, dibutyl hydroxyl toluene form component A to cooperate with components such as polypropylene, masterbatch, compatilizer, can make the waterproofing membrane product that obtains have better adhesive strength, especially after exposing in strong ultraviolet, its effect is more obvious.
2. The application provides a waterproofing membrane, through adding a small amount of high density polyethylene, make the product on the basis that has higher adhesive strength, reduced the dimensional change rate, further make the product be difficult for droing when the overlap joint bonds, improved the range of application of product.
3. The waterproof coiled material production method provided by the application is simple in process and convenient to realize, and meanwhile, the problem that the quality of each component is unstable after the components are mixed is solved, so that each component can be combined more effectively, and a waterproof coiled material product with better stability is obtained.
Detailed Description
The exemplary embodiments will be described herein in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
The present application will be described in detail by way of examples below.
The existing waterproof coiled material has the problem of higher bending modulus, and the lap joint bonding part is easy to separate due to reasons such as stress release and the like during construction, so that the waterproof effect of the waterproof coiled material is poor. In view of the above, the invention of the present application is to provide a waterproof roll with high bonding strength, which comprises the following components in parts by weight: 50-80 parts of a component A; 5-20 parts of polypropylene; 10-20 parts of master batch; 15-25 parts of a compatilizer; wherein the component A comprises 1-4% of isopropyl phosphate, 2-6% of dibutyl hydroxy toluene and the balance of linear low density polyethylene. By adopting the technical scheme, the components such as linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and the like form the component A, and the component A is matched with the components such as polypropylene, master batch, compatilizer and the like, so that the obtained waterproof coiled material product has better bonding strength, and especially has more obvious effect after being exposed to strong ultraviolet rays.
Before the technical scheme of the application is introduced, the main components involved in the application are introduced. It should be noted that the compounds not specifically emphasized in the present application can be purchased from the market and are not limited to the ones described below.
High Density Polyethylene (HDPE) has a molecular weight range of 40000-300000, is white powder or granular product, is nontoxic and odorless, has a crystallinity of 80-90%, a softening point of 125-135 deg.C, and can be used at 100 deg.C.
Linear Low Density Polyethylene (LLDPE), is a molecular structure with very short comonomer branches formed on the Linear ethylene backbone by copolymerization of ethylene with a small amount of alpha-olefin. The linear low-density polyethylene is non-toxic, tasteless and odorless milky white particles, and has a density of 0.918-0.935 g/cm3.
In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments.
Experimental example 1 ultraviolet irradiation experiment
This example describes the experimental methods of the ultraviolet irradiation experiments in the present application, and the ultraviolet irradiation experiments in the present application were carried out in the same manner as in the experimental examples, unless otherwise specified.
In the experimental example, the waterproof roll was laid on a plane, and the ultraviolet light irradiation intensity was adjusted to 100W/m from the power of the ultraviolet lamp to the surface of the waterproof roll 2 Continuously irradiating for 7 days, and detecting the related technical indexes of the waterproof roll after 7 days.
Experimental example 2 flexural modulus measurement experiment
This example describes the experimental method of the flexural modulus test in this application, and if not specifically mentioned, the flexural modulus test in this application is performed according to the method of this example.
Cutting the waterproof coiled material to be tested according to the following dimensions:
length: 80mm plus or minus 2mm;
width: 10mm plus or minus 0.2mm;
thickness: 4mm plus or minus 0.2mm;
and according to GB/T9341-2008: measurement of flexural Properties of Plastic the flexural modulus of the product was measured by the method in.
Experimental example 3 measurement experiment of dimensional change rate
In this embodiment, the experimental method of the dimensional change rate detection experiment in the present application is described, and if no particular description is given, the dimensional change rate detection experiment in the present application is performed according to the method of this example.
Cutting the waterproof coiled material to be tested according to the following dimensions:
length: 250mm plus or minus 2mm;
width: 250mm plus or minus 2mm;
thickness: 4mm plus or minus 0.2mm;
and according to GB/T23457-2017: the dimensional change rate of the product was determined by the method in pre-laid waterproofing sheet.
Experimental example 4
In product tests, the applicant finds that the bending modulus of the existing waterproof coiled material is increased under long-term irradiation of ultraviolet rays, so that the construction effect is easily influenced by stress release and the like. Especially, when the constructor is unaware of the problem and the waterproofing membrane is exposed to the sun for a long time without being constructed, the construction effect is greatly reduced.
The following are some technical solutions proposed in experimental example 4 of the present invention.
Scheme A
60 parts of linear low-density polyethylene, 20 parts of polypropylene, 20 parts of calcium carbonate master batch and 20 parts of compatilizer ethylene-methacrylate copolymer.
Sequentially adding the components into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Scheme B
60 parts of component A,20 parts of polypropylene, 20 parts of calcium carbonate master batch and 20 parts of compatilizer ethylene-methacrylate copolymer are taken. Wherein, the component A contains 98 percent of linear low density polyethylene and 2 percent of isopropyl phosphate.
Firstly, weighing linear low-density polyethylene and isopropyl phosphate according to parts by weight, and treating for 24 hours in a constant-temperature drying oven at 100 ℃; melting and blending linear low-density polyethylene and isopropyl phosphate for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then, sequentially adding the component A, the polypropylene, the calcium carbonate master batch and the compatilizer ethylene-methacrylate copolymer into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Scheme C
60 parts of component A,20 parts of polypropylene, 20 parts of calcium carbonate master batch and 20 parts of compatilizer ethylene-methacrylate copolymer. Wherein, the component A contains 96 percent of linear low density polyethylene and 4 percent of dibutyl hydroxy toluene.
Firstly, weighing linear low-density polyethylene and dibutyl hydroxy toluene according to parts by weight, and treating for 24 hours in a constant-temperature drying oven at 100 ℃; melting and blending linear low-density polyethylene and dibutyl hydroxy toluene for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then sequentially adding the component A, polypropylene, calcium carbonate master batch and compatilizer ethylene-methacrylate copolymer into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Scheme D
60 parts of component A,20 parts of polypropylene, 20 parts of calcium carbonate master batch and 20 parts of compatilizer ethylene-methacrylate copolymer are taken. Wherein, the component A contains 94 percent of linear low density polyethylene, 2 percent of isopropyl phosphate and 4 percent of dibutyl hydroxy toluene.
Firstly, weighing linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene in parts by weight, and treating for 24 hours in a constant-temperature drying oven at 100 ℃; melting and blending linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then, sequentially adding the component A, the polypropylene, the calcium carbonate master batch and the compatilizer ethylene-methacrylate copolymer into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Scheme E
Scheme E is similar to scheme D except that component a contains 93% linear low density polyethylene, as well as 3% isopropyl phosphate and 4% dibutylhydroxytoluene.
Scheme F
Scheme F is similar to scheme D except that component a contains 92% linear low density polyethylene, as well as 4% isopropyl phosphate and 4% dibutylhydroxytoluene.
Scheme G
Scheme G is similar to scheme D except that component a contains 93% linear low density polyethylene, as well as 2% isopropyl phosphate and 5% dibutylhydroxytoluene.
Wherein the components selected in the schemes A-G are all in the same batch, and the linear low density polyethylene meets the following conditions: the density is 0.918-0.925g/cm 3 The melt index is 3.0-5.0g/10min.
The waterproof rolls prepared according to the schemes A to G are respectively treated for 7 days according to the experimental method of the ultraviolet irradiation experiment in the experimental example 1 to prepare experimental groups, and are placed in a shade place for 7 days to prepare a control group; and the flexural modulus of the product was measured by the method of Experimental example 2 for each of the experimental group and the control group.
The results are shown in Table 1.
TABLE 1 flexural modulus after UV irradiation experiments for protocols A-G
In the course of studying the present application, the applicant found: the bending modulus of the product in the prior art (scheme A) is obviously improved after the product is irradiated by ultraviolet, the product is not easy to be exposed to the sun for a long time to influence the actual use effect, and the usability is poor.
The applicant has found in further studies that: the combination of linear low density polyethylene with isopropyl phosphate and dibutylhydroxytoluene to prepare component a (scheme D-G) can significantly reduce the change in flexural modulus, making the product more easily usable. The above effects are not exhibited when the linear low-density polyethylene is combined with isopropyl phosphate and dibutylhydroxytoluene (embodiment B and embodiment C), respectively.
In addition, the experimental results show that compared with the scheme F/G, the scheme D/E has smaller change of the flexural modulus and stronger usability of the product. After further verification, the applicant finds that the content ratio of the isopropyl phosphate to the dibutyl hydroxyl toluene is controlled to be 0.5-0.8:1 the effect is better.
Experimental example 5
In further product tests, the applicant finds that when the isopropyl phosphate and the dibutyl hydroxy toluene are added into the component A, the size change rate of the waterproof roll product is increased, and the application of the waterproof roll product is also not favorable.
The following are several technical solutions proposed in experimental example 5 of the present invention.
Scheme H
60 parts of component A,20 parts of polypropylene, 20 parts of calcium carbonate master batch and 20 parts of compatilizer ethylene-methacrylate copolymer are taken. Wherein, the component A contains 93.5 percent of linear low density polyethylene, 2 percent of isopropyl phosphate, 4 percent of dibutyl hydroxy toluene and 0.5 percent of high density polyethylene.
Firstly, weighing linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and high-density polyethylene according to parts by weight, and treating for 24 hours in a constant-temperature drying oven at 100 ℃; melting and blending linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and high-density polyethylene for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then, sequentially adding the component A, the polypropylene, the calcium carbonate master batch and the compatilizer ethylene-methacrylate copolymer into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Scheme I
60 parts of component A,20 parts of polypropylene, 20 parts of calcium carbonate master batch and 20 parts of compatilizer ethylene-methacrylate copolymer are taken. Wherein, the component A contains 93.5 percent of linear low density polyethylene, 2 percent of isopropyl phosphate, 4 percent of dibutyl hydroxy toluene and 0.5 percent of high density polyethylene.
Firstly, weighing linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and high-density polyethylene according to parts by weight, and treating for 24 hours in a constant-temperature drying oven at 100 ℃; melting and blending the linear low-density polyethylene and the high-density polyethylene for 45min, and controlling the temperature to be 220 ℃ to obtain a premixed material; mixing the premixed material with isopropyl phosphate and dibutyl hydroxy toluene for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then sequentially adding the component A, polypropylene, calcium carbonate master batch and compatilizer ethylene-methacrylate copolymer into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Scheme J
60 parts of component A,20 parts of polypropylene, 20 parts of calcium carbonate master batch, 20 parts of compatilizer ethylene-methacrylate copolymer and 0.3 part of high density polyethylene. Wherein, the component A contains 94 percent of linear low density polyethylene, 2 percent of isopropyl phosphate and 4 percent of dibutyl hydroxy toluene.
Firstly, weighing linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene in parts by weight, and treating for 24 hours in a constant-temperature drying oven at 100 ℃; melting and blending linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then sequentially adding the component A, polypropylene, calcium carbonate master batch, compatilizer ethylene-methacrylate copolymer and high-density polyethylene into a drying and stirring tank, stirring at the temperature of 100 ℃ for 25min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
The components selected in the scheme H-J are all the same batch, and the linear low-density polyethylene meets the following conditions: the density is 0.918-0.925g/cm 3 The melt index is 3.0-5.0g/10min.
The waterproof rolls prepared according to the schemes A to J are respectively treated for 7 days according to the experimental method of the ultraviolet irradiation experiment in the experimental example 1 to prepare an experimental group, and are placed in a shade place for 7 days to prepare a control group; and the experimental group and the control group were tested for the dimensional change rate of the product according to the method of experimental example 3.
The results of the experiment are shown in Table 2.
TABLE 2 experiment of dimensional Change rates for protocol A-protocol J
From the results in table 2, the applicants further found in their research that: when the component A (scheme D-G) is prepared by combining linear low-density polyethylene with isopropyl phosphate and dibutyl hydroxy toluene, the flexural modulus can be obviously reduced, the usability of the product is stronger, but the dimensional change rate is increased, and the product performance is also unfavorable.
The applicant found in further studies that: the introduction of the product into high density polyethylene can reduce the above-mentioned effects (schemes H-I). After the high-density polyethylene is added into the components, the dimensional change rate of the product is obviously reduced (compared with the scheme D-G), and the product performance is improved.
In addition, the experimental result shows that the scheme H has lower dimensional change rate compared with the scheme I/J, which shows that the scheme H has better effect by adding the high-density polyethylene into the component A and adopting a melt blending scheme of premixing and matching with total mixing. Although the dimensional change rate of the product is not obviously improved compared with the prior art (scheme A), the scheme provided by the invention has very outstanding performance on the change of the bending modulus, and still can be considered to have very good application value.
Example 1
5kg of component A,0.5kg of polypropylene, 1kg of calcium carbonate master batch, 1.5kg of ethylene-methacrylate copolymer, 0.2kg of calcium zinc stabilizer and 0.03kg of 2-hydroxy-4-methoxybenzophenone are taken. Wherein, the component A contains 97 percent of linear low density polyethylene, 1 percent of isopropyl phosphate and 2 percent of dibutyl hydroxy toluene.
Weighing linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene in parts by weight, and treating for 12 hours in a constant-temperature drying oven at 80 ℃; melting and blending linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene for 15min, and controlling the temperature to be 160 ℃; component A is prepared.
Then, sequentially adding the component A, polypropylene, calcium carbonate master batch, compatilizer ethylene-methacrylate copolymer, calcium zinc stabilizer and 2-hydroxy-4-methoxybenzophenone into a drying and stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 200 ℃, and the speed of a setting roller is set to be 1m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Example 2
6kg of component A,1kg of polypropylene, 1.5kg of calcium carbonate master batch, 2kg of ethylene-methacrylate copolymer, 0.3kg of calcium-zinc stabilizer and 0.05kg of 2-hydroxy-4-methoxybenzophenone are taken. Wherein, the component A contains 94 percent of linear low density polyethylene, 2 percent of isopropyl phosphate and 4 percent of dibutyl hydroxy toluene.
Weighing linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene in parts by weight, and treating for 24 hours in a constant-temperature drying oven at 90 ℃; melting and blending linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then sequentially adding the component A, polypropylene, calcium carbonate master batch, compatilizer ethylene-methacrylate copolymer, calcium zinc stabilizer and 2-hydroxy-4-methoxybenzophenone into a drying and stirring tank, stirring at 110 ℃ for 28min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Example 3
8kg of component A,2kg of polypropylene, 2kg of calcium carbonate master batch, 2.5kg of ethylene-methacrylate copolymer, 0.5kg of calcium-zinc stabilizer and 0.08kg of 2-hydroxy-4-methoxybenzophenone are taken. Wherein, the component A contains 90 percent of linear low density polyethylene, 4 percent of isopropyl phosphate and 6 percent of dibutyl hydroxy toluene.
Weighing linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene in parts by weight, and treating for 36 hours in a constant-temperature drying oven at 100 ℃; melting and blending linear low-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene for 30min, and controlling the temperature to be 200 ℃; component A is prepared.
Then, sequentially adding the component A, polypropylene, calcium carbonate master batch, a compatilizer ethylene-methacrylate copolymer, a calcium zinc stabilizer and 2-hydroxy-4-methoxybenzophenone into a drying and stirring tank, stirring at 120 ℃ for 30min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 250 ℃, and the speed of a shaping roller is set to be 2m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Example 4
5kg of component A,0.5kg of polypropylene, 1kg of calcium carbonate master batch, 1.5kg of ethylene-methacrylate copolymer, 0.2kg of calcium zinc stabilizer and 0.03kg of 2-hydroxy-4-methoxybenzophenone are taken. Wherein, the component A contains 96.8 percent of linear low density polyethylene, 1 percent of isopropyl phosphate, 2 percent of dibutyl hydroxy toluene and 0.2 percent of high density polyethylene.
Weighing linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and high-density polyethylene according to parts by weight, and treating for 12 hours at 80 ℃ in a constant-temperature drying oven; melting and blending linear low-density polyethylene and high-density polyethylene for 30min, and controlling the temperature to be 200 ℃ to obtain a premixed material; mixing the premixed material with isopropyl phosphate and dibutyl hydroxy toluene for 15min, and controlling the temperature to be 160 ℃; component A is prepared.
Then sequentially adding the component A, polypropylene, calcium carbonate master batch, compatilizer ethylene-methacrylate copolymer, calcium zinc stabilizer and 2-hydroxy-4-methoxybenzophenone into a drying and stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 200 ℃, and the speed of a shaping roller is set to be 1m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Example 5
6kg of component A,1kg of polypropylene, 1.5kg of calcium carbonate master batch, 2kg of ethylene-methacrylate copolymer, 0.3kg of calcium-zinc stabilizer and 0.05kg of 2-hydroxy-4-methoxybenzophenone are taken. Wherein, the component A contains 93.5 percent of linear low density polyethylene, 2 percent of isopropyl phosphate, 4 percent of dibutyl hydroxy toluene and 0.5 percent of high density polyethylene.
Weighing linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and high-density polyethylene according to parts by weight, and treating for 24 hours in a constant-temperature drying oven at 90 ℃; melting and blending linear low-density polyethylene and high-density polyethylene for 45min, and controlling the temperature to be 220 ℃ to obtain a premixed material; mixing the premixed material with isopropyl phosphate and dibutyl hydroxy toluene for 20min, and controlling the temperature to be 180 ℃; component A is prepared.
Then sequentially adding the component A, polypropylene, calcium carbonate master batch, compatilizer ethylene-methacrylate copolymer, calcium zinc stabilizer and 2-hydroxy-4-methoxybenzophenone into a drying and stirring tank, stirring at 110 ℃ for 28min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Example 6
8kg of component A,2kg of polypropylene, 2kg of calcium carbonate master batch, 2.5kg of ethylene-methacrylate copolymer, 0.5kg of calcium-zinc stabilizer and 0.08kg of 2-hydroxy-4-methoxybenzophenone are taken. Wherein, the component A contains 89 percent of linear low density polyethylene, 4 percent of isopropyl phosphate, 6 percent of dibutyl hydroxy toluene and 1 percent of high density polyethylene.
Weighing linear low-density polyethylene, isopropyl phosphate, dibutyl hydroxy toluene and high-density polyethylene according to parts by weight, and treating for 36 hours in a constant-temperature drying oven at 100 ℃; melting and blending linear low-density polyethylene and high-density polyethylene for 60min, and controlling the temperature to be 250 ℃ to obtain a premixed material; mixing the premixed material with isopropyl phosphate and dibutyl hydroxy toluene for 30min, and controlling the temperature to be 200 ℃; component A is prepared.
Then, sequentially adding the component A, polypropylene, calcium carbonate master batch, a compatilizer ethylene-methacrylate copolymer, a calcium zinc stabilizer and 2-hydroxy-4-methoxybenzophenone into a drying and stirring tank, stirring at 120 ℃ for 30min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 250 ℃, and the speed of a shaping roller is set to be 2m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Example 7
Example 7 is essentially the same as example 1, except that:
the component A contains 93 percent of linear low-density polyethylene, 1 percent of isopropyl phosphate and 6 percent of dibutyl hydroxy toluene.
Example 8
Example 8 is essentially the same as example 2, except that:
the component A contains 94 percent of linear low-density polyethylene, 3 percent of isopropyl phosphate and 3 percent of dibutyl hydroxy toluene.
Example 9
Example 9 is essentially the same as example 3, except that:
the component A contains 94 percent of linear low-density polyethylene, 4 percent of isopropyl phosphate and 2 percent of dibutyl hydroxy toluene.
Example 10
Example 10 is essentially the same as example 4, except that:
before component A is obtained, the melt blending step is followed byComprises the steps of measuring the intensity of light at 150W/m 2 Irradiating and crosslinking for 30min under ultraviolet light.
Example 11
Example 11 is essentially the same as example 5, except that:
before component A is obtained, the melt blending step is followed by a step of obtaining a melt blend having a light intensity of 200W/m 2 Ultraviolet irradiation for 60min.
Example 12
Example 12 is essentially the same as example 6, except that:
the melt blending step is followed by a step of applying a light intensity of 250W/m before component A is obtained 2 And irradiating for crosslinking for 120min.
Comparative example 1
Taking 6kg of linear low-density polyethylene, 2kg of polypropylene, 2kg of calcium carbonate master batch, 2kg of compatilizer ethylene-methacrylate copolymer, 0.3kg of calcium zinc stabilizer and 0.05kg of 2-hydroxy-4-methoxybenzophenone.
Sequentially adding the components into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Comparative example 2
Taking 6kg of the component A,2kg of polypropylene, 2kg of calcium carbonate master batch, 2kg of compatilizer ethylene-methacrylate copolymer, 0.3kg of calcium zinc stabilizer and 0.05kg of 2-hydroxy-4-methoxybenzophenone. Wherein, the component A contains 94 percent of linear low density polyethylene, 2 percent of isopropyl phosphate and 4 percent of dibutyl hydroxy toluene.
Sequentially adding linear low-density polyethylene, isopropyl phosphate polypropylene, dibutyl hydroxy toluene, calcium carbonate master batch, a compatilizer ethylene-methacrylate copolymer, a calcium zinc stabilizer and 2-hydroxy-4-methoxybenzophenone into a drying and stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharging hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Comparative example 3
6kg of the component A,2kg of polypropylene, 2kg of calcium carbonate master batch, 2kg of compatilizer ethylene-methacrylate copolymer, 0.3kg of calcium zinc stabilizer and 0.05kg of 2-hydroxy-4-methoxybenzophenone are taken. Wherein, the component A contains 93.5 percent of linear low density polyethylene, 2 percent of isopropyl phosphate, 4 percent of dibutyl hydroxy toluene and 0.5 percent of high density polyethylene.
Sequentially adding linear low-density polyethylene, isopropyl phosphate polypropylene, dibutyl hydroxy toluene, high-density polyethylene, a calcium-zinc stabilizer, 2-hydroxy-4-methoxybenzophenone calcium carbonate master batch and a compatilizer ethylene-methacrylate copolymer into a drying stirring tank, stirring at 100 ℃ for 25min, and outputting to a discharge hopper of an extruder; the extrusion temperature is controlled at 220 ℃, and the speed of a setting roller is set to be 1.5m/min; the thickness of the sheet is controlled to be 4mm, and the calendering roller is adjusted for shaping.
Test example 1
The waterproof rolls prepared according to the methods of examples 1 to 12 and comparative examples 1 to 3 were treated for 7 days according to the experimental method of the ultraviolet irradiation experiment in experimental example 1 to prepare a light group, and were placed in a shade for 7 days to prepare a control group; then according to GB/T23457-2017: pre-laid waterproof roll material, GB/T9341-2008: the method in the test on the bending property of the plastic detects various indexes of the product. It is understood that the same batch of product was selected for the same set of experiments.
The results of the experiment are shown in Table 3.
TABLE 3-1 test results of product Properties of respective waterproof rolls-1
As can be seen from the description in Table 3-1, the performance index of the product of the embodiment provided by the invention can reach a higher quality standard no matter whether the product is subjected to ultraviolet treatment or not, and the technical scheme provided by the invention is proved to have a better application prospect.
TABLE 3-2 test results of product Properties of respective waterproof rolls-2
According to the records in table 3-2, firstly, the flexural modulus and the dimensional change rate index of the embodiment provided by the invention can reach higher quality standards no matter whether the embodiment is subjected to ultraviolet treatment or not, and the technical scheme provided by the invention is proved to have better application prospect.
Secondly, comparing examples 1 to 12 with comparative example 1, the waterproof coiled material product prepared by the embodiment of the invention has lower flexural modulus after being exposed to ultraviolet treatment than the prior art, and the difference has statistical significance, so that the product prepared by the technical scheme provided by the invention has better flexural modulus change resistance, and the flexural modulus change is smaller even being exposed to sunlight, thus the waterproof coiled material product has better applicability than the prior art.
Third, comparing examples 1-3 with comparative example 2, when isopropyl phosphate, dibutylhydroxytoluene and other components are blended, but not mixed with linear low density polyethylene to prepare component a (comparative example 2), the flexural modulus change resistance of the product is not greatly improved compared with the prior art, which shows that the components and the preparation method provided by the present invention have a matching effect, so that the product can have better flexural modulus change resistance.
Fourth, comparing examples 4 to 6 with comparative example 3, in the case where the high density polyethylene was blended with other components without first preparing component a with components such as linear low density polyethylene (comparative example 3), the dimensional change rate of the product was still high, indicating that the high density polyethylene provided by the present invention has a synergistic effect with a specific preparation method, enabling the product to have a lower dimensional change rate.
Fifth, comparing examples 10-12 with examples 4-6, examples 10-12 using the UV cross-linking method in the preparation of component A, the resulting products have lower flexural modulus, indicating that the products obtained using the preparation method of examples 10-12 have better product properties.
In conclusion, the waterproof roll and the production method thereof provided by the invention have better bending modulus change resistance than that of the prior art on the basis of obtaining qualified products, so that the product has higher strength during bonding, the installation and arrangement of the product are facilitated, and the product has better applicability.
It should be noted that, for those skilled in the art, the technical features in the above embodiments can be freely combined, and the formed technical solution also belongs to the embodiments disclosed in the present application.
Further, without departing from the principle of the present application, several improvements and modifications may be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.
Claims (10)
1. The high-bonding-strength waterproof coiled material is characterized by comprising the following components in parts by weight:
50-80 parts of a component A;
5-20 parts of polypropylene;
10-20 parts of master batch;
15-25 parts of a compatilizer;
wherein the component A comprises 1-4% of isopropyl phosphate, 2-6% of dibutyl hydroxy toluene and the balance of linear low density polyethylene.
2. The waterproofing membrane according to claim 1, wherein said component a comprises 2 to 3% of isopropyl phosphate, 2.5 to 4% of dibutyl hydroxy toluene.
3. A sheet for waterproofing according to claim 1 or 2, wherein the ratio of the content of isopropyl phosphate to dibutylhydroxytoluene is 0.5 to 0.8:1.
4. the waterproofing membrane according to claim 1, wherein said master batch is calcium carbonate or bentonite.
5. A sheet for waterproofing according to claim 1, wherein said sheet for waterproofing further comprises 2 to 5 parts of a stabilizer.
6. The waterproof roll as claimed in claim 1, further comprising 0.3 to 0.8 part of a light absorbing agent.
7. A sheet according to any one of claims 1 to 6, wherein said component A further comprises 0.2 to 1% of high density polyethylene.
8. A method for producing a waterproofing membrane according to any one of claims 1 to 7, comprising the steps of:
drying and stirring, namely sequentially adding the metered component A, polypropylene, master batch and compatilizer into a drying and stirring tank according to the weight parts, stirring at the temperature of 100-120 ℃ for 25-30min, and outputting to a feeding hopper of an extruder;
plasticizing and extruding, wherein the extrusion temperature is controlled to be 200-250 ℃, and the speed of a shaping roller is set to be 1-2m/min;
and (4) calendering and forming, namely adjusting a calendering roller to shape after controlling the thickness and the width of the sheet.
9. The method of claim 8, wherein the method of producing component A comprises,
drying the raw materials, weighing linear low-density polyethylene, high-density polyethylene, isopropyl phosphate and dibutyl hydroxy toluene according to parts by weight, and treating for more than 12 hours at a constant temperature of 80-100 ℃ in a drying oven;
and (3) melting and blending, and mixing the raw materials to form the composite material.
10. The production method according to claim 9, wherein the melt blending step comprises:
a premixing step, namely melting and blending the linear low-density polyethylene and the high-density polyethylene for 30-60min, and controlling the temperature to be 200-250 ℃ to obtain a premixed material;
and a total mixing step, namely mixing the premixed material with isopropyl phosphate and dibutyl hydroxy toluene for 15-30min, and controlling the temperature to be 160-200 ℃ to form the composite material.
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