Macromolecule double-sided composite wet-paving waterproof coiled material

Abstract

The invention provides a high-molecular double-sided composite wet-paving waterproof coiled material, and belongs to the technical field of waterproof coiled materials. The raw materials of the material comprise an ethylene-octylene copolymer (POE 6012), CPE particles, linear low density polyethylene (LLDPE0209AA), PE-grade filling master batches and short fibers. The preparation process comprises the steps of ingredient mixing, extrusion, double-sided thermal compounding, cooling and tempering, rolling, finished product inspection, packaging and warehousing and the like, and the prepared high-molecular double-sided composite wet-laid waterproof coiled material 1 has unique flexibility and high weather resistance, keeps good flexibility in an ultralow-temperature state, and is slightly influenced by environmental factors; the flatness is good, the coiled material breadth is wide, the lap joint coefficient is small, the lap joint area can be reduced by 50% compared with the common breadth, and construction is easy; meanwhile, in the construction process, a cement-based adhesive is adopted, the pasting effect is extremely good, construction can be conducted on a wet base plane, and the construction efficiency is improved; in addition, lap joints can be thermally welded, leakage points are reduced, and the waterproof quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of waterproof coiled materials, and in particular relates to a polymer double-sided composite wet-laid waterproof coiled material. Background Art

[0002] With the continuous improvement of the requirements for waterproofing life in construction projects, underground waterproofing has the same lifespan as the building and can be used externally for up to 30 years. At present, traditional waterproof materials have gradually exposed some shortcomings in practical applications. For example, strict requirements are placed on the flatness and moisture content of the base surface. Waterproof membranes often require base treatment and drying conditions during laying, which not only increases construction costs and difficulty, but may also affect the waterproofing effect. Therefore, it is particularly important to develop a new type of waterproof membrane that can both simplify the construction process and improve the waterproofing effect. Summary of the invention

[0003] The present invention aims at solving the problems in the prior art and provides a polymer double-sided composite wet-laid waterproofing coiled material.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is: A polymer double-sided composite wet-laid waterproofing membrane, the raw materials of which are composed of the following weight fractions: 30 parts of ethylene-octene copolymer, 20 parts of CPE particles, 50 parts of linear low-density polyethylene, 3 parts of PE-grade filling masterbatch, and the rest of the material has a density of 90g / m 2 of staple fibers.

[0005] Preferably, the ethylene-octene copolymer is POE 6012.

[0006] Preferably, the linear low-density polyethylene is LLDPE0209AA.

[0007] Preferably, the specific preparation steps of the polymer double-sided composite wet-laid waterproof membrane are as follows: Step 1: Mixing ingredients: weigh the above raw materials according to the proportion, send the weighed raw materials into the mixer for mixing, and after the raw materials are mixed, send them into the hopper for low-speed stirring to complete the mixing; Step 2: Extrusion: The stirred raw materials are fed into an extruder for extrusion, and the extruded materials are molded to obtain a coiled material after mold molding; Step 3: Double-sided heat lamination: The molded coil and the non-woven fabric are simultaneously fed into a three-roll calender for double-sided heat lamination to obtain the heat-laminated coil; Step 4: Cooling and tempering: Cooling and tempering the hot-compounded coil, with the tempering temperature maintained at 76-80°C to obtain the cooled and tempered coil; Step 5: Winding: The cooled and tempered coiled material is sent to the winder for winding to obtain a polymer double-sided composite wet-laid waterproofing coiled material; Step 6: Finished product inspection, packaging and warehousing: Conduct a comprehensive quality inspection on the finished products, including but not limited to thickness measurement, peel strength test and weather resistance evaluation, to ensure that each batch of products meets the standard requirements; then mark the necessary information on the outside of the qualified polymer double-sided composite wet-laid waterproof membrane, such as brand logo, model specifications, production date, etc.; then package according to customer requirements, generally wrap it with plastic film and place it in a carton, and send it to the warehouse for neat stacking.

[0008] Preferably, in step 2, the preset temperatures of the extruder barrel are: 220-230°C in zone 1, 220-230°C in zone 2, 220-230°C in zone 3, 220-230°C in zone 4, 210-220°C in zone 5, 210-220°C in zone 6, 210-220°C in zone 7, and 210-220°C in zone 8.

[0009] Preferably, in step 2, the preset temperatures of the extruder heads are: 185-195°C in zone 1, 185-195°C in zone 2, and 185-195°C in zone 3.

[0010] Preferably, in step 2, the preset temperatures of the extruder head distributor are: 185-195°C for zone 1, 185-195°C for zone 2, and 185-195°C for zone 3.

[0011] Preferably, in step 2, the preset temperatures of the extruder melt pump are: 190-200° C. at the inlet and 195-215° C. at the pump body.

[0012] Preferably, in step 2, the mold setting temperatures for mold molding are: 185-195°C for zone 1, 195-205°C for zone 2, 200-210°C for zone 3, 210-220°C for zone 4, 210-220°C for zone 5, 210-220°C for zone 6, 210-220°C for zone 7, 210-220°C for zone 8, 210-220°C for zone 9, 210-220°C for zone 10, 210-220°C for zone 11, 210-220°C for zone 12, 200-210°C for zone 13, 195-205°C for zone 14, and 185-195 for zone 15.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are: The present application discloses a polymer double-sided composite wet-laid waterproofing membrane, whose raw materials include ethylene-octene copolymer (POE6012), CPE particles, linear low-density polyethylene (LLDPE0209AA), PE-grade filling masterbatch and staple fibers; its preparation process includes the steps of ingredient mixing, extrusion, double-sided thermal compounding, cooling and tempering, winding, finished product inspection and packaging and warehousing, etc. The prepared polymer double-sided composite wet-laid waterproofing membrane 1. has unique flexibility, high weather resistance, maintains good flexibility under ultra-low temperature conditions, and is less affected by environmental factors; has good flatness, a wide membrane width, and a small overlap coefficient, which can reduce the overlap area by 50% compared with the usual width, and is easy to construct; at the same time, the cement-based adhesive used in the construction process has an excellent bonding effect, and can be constructed on a wet base surface, thereby improving construction efficiency; in addition, its overlap seams can be heat-welded to reduce leaks and improve waterproofing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic diagram of the structure of the double-sided wet-paved material of the present application; In the above figures, 1, 90g / m 2 Staple fiber needle-punched non-woven fabric; 2. Polymer waterproof sheet. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0018] Example 1: A polymer double-sided composite wet-laid waterproofing membrane of the present application, the raw materials of which are composed of the following weight fractions: 30 parts of ethylene-octene copolymer (POE 6012), 20 parts of CPE particles, 50 parts of linear low-density polyethylene (LLDPE0209AA), 3 parts of PE-grade filling masterbatch, and the rest of the material is a density of 90g / m 2 of staple fibers.

[0019] The specific preparation steps of the polymer double-sided composite wet-laid waterproof membrane are as follows: Step 1: Mixing ingredients: weigh the above raw materials in proportion, send the weighed raw materials into the mixer for low-speed mixing; at the same time, in order to meet the requirements of industrial production, the mixer should store a certain amount of raw materials, and the total amount of stored raw materials should not exceed the effective volume. After the raw materials are mixed, they are sent to the hopper for low-speed stirring, and the stirring time is 6 minutes; to complete the mixing; Step 2: Extrusion: feeding the stirred raw materials into an extruder for extrusion; Among them, the preset temperature control intervals of the extruder barrel are: zone 1 220-230°C, zone 2.220-230°C, zone 3 220-230°C, zone 4 220-230°C, zone 5 210-220°C, zone 6 210-220°C, zone 7 210-220°C, zone 8 210-220°C; The preset temperature control ranges of the extruder head are: Zone 1 185-195°C, Zone 2 185-195°C, Zone 3 185-195°C; The preset temperature control intervals of the extruder head distributor are: zone 1 185-195°C, zone 2 185-195°C, zone 3 185-195°C; The preset temperature control ranges of the extruder melt pump are: 190-200°C at the inlet and 195-215°C at the pump body; The mold setting temperature control intervals for mold molding are: zone 1 185-195°C, zone 2 195-205°C, zone 3 200-210°C, zone 4 210-220°C, zone 5 210-220°C, zone 6 210-220°C, zone 7 210-220°C, zone 8 210-220°C, zone 9 210-220°C, zone 10 210-220°C, zone 11 210-220°C, zone 12 210-220°C, zone 13 200-210°C, zone 14 195-205°C, zone 15 185-195°C; The extruded material is molded to obtain a coiled material after mold forming; Step 3: Double-sided heat lamination: Check the surface of the three-roll calender in advance to ensure that there are no defects on the surface of the three-roll calender, and then adjust the three-roll roller distance according to the preset thickness of the polymer double-sided composite wet-laid waterproof membrane to ensure that the roller distance remains consistent; adjust the tension system according to the width of the non-woven fabric to be heat-laminated with the mold-formed membrane to ensure that the non-woven fabric is flat and has no creases; send the mold-formed membrane and the non-woven fabric into the three-roll calender simultaneously for double-sided heat lamination; among them, the overlap width of the membrane reserved for non-laminated non-woven fiber fabric should be 60~80mm to ensure that the mold-formed membrane and the non-woven fiber fabric are firmly heat-melted and laminated to obtain the heat-laminated membrane; Step 4: Cooling and tempering: Cool and temper the coil after thermal lamination, and keep the tempering temperature at 76-80°C; the coil after thermal lamination should ensure uniform thickness and good flatness, and the non-woven fiber fabric should be firmly hot-melted and laminated without bubbles, cracks, adhesion, scars, holes, and neat cutting edges, so as to facilitate subsequent tempering operations; obtain the coil after cooling and tempering; Step 5: Rewinding: The cooled and tempered coil is fed into the rewinder for rewinding; the rewinder adjusts the relevant settings of the rewinder according to the specific specifications (such as thickness and width) of the polymer double-sided composite wet-laid waterproofing coil, such as the initial tension, rewinding speed and other initial parameters; the cooled and tempered coil is allowed to smoothly pass through a series of guide rollers and then enter the rewinding mandrel, gradually forming a cylindrical roll structure to obtain the polymer double-sided composite wet-laid waterproofing coil; Step 6: Finished product inspection, packaging and warehousing: Conduct a comprehensive quality inspection on the finished products, including but not limited to thickness measurement, peel strength test and weather resistance evaluation, to ensure that each batch of products meets the standard requirements; then mark the necessary information on the outside of the qualified polymer double-sided composite wet-laid waterproof membrane, such as brand logo, model specifications, production date, etc.; then package according to customer requirements, generally wrap it with plastic film and place it in a carton, and send it to the warehouse for neat stacking.

[0020] Among them, the polymer double-sided composite wet-laid waterproof membrane obtained in Example 1 was tested for various mechanical properties, and the results are shown in Table 1 below. Table 1 Mechanical properties test results of double-sided composite wet-laid waterproof membrane in Example 1 and comparison table with type I performance requirements

[0021] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A polymer double-sided composite wet-laid waterproof roll, characterized in that: The raw materials are composed of the following weight fractions: 30 parts of ethylene-octene copolymer, 20 parts of CPE particles, 50 parts of linear low-density polyethylene, 3 parts of PE-grade filler masterbatch, and the remaining material has a density of 90g / m 2 of staple fibers.

2. The polymer double-sided composite wet-laid waterproofing membrane according to claim 1, characterized in that: The ethylene-octene copolymer is POE 6012.

3. The polymer double-sided composite wet-laid waterproofing membrane according to claim 1, characterized in that: The linear low density polyethylene is LLDPE0209AA.

4. A polymer double-sided composite wet-laid waterproofing membrane according to any one of claims 1 to 3, characterized in that: The specific preparation steps of the polymer double-sided composite wet-laid waterproof membrane are as follows: Step 1: Mixing ingredients: weigh the above raw materials according to the proportion, send the weighed raw materials into the mixer for mixing, and after the raw materials are mixed, send them into the hopper for low-speed stirring to complete the mixing; Step 2: Extrusion: The stirred raw materials are fed into an extruder for extrusion, and the extruded materials are molded to obtain a coiled material after mold molding; Step 3: Double-sided heat lamination: The molded coil and the non-woven fabric are simultaneously fed into a three-roll calender for double-sided heat lamination to obtain the heat-laminated coil; Step 4: Cooling and tempering: Cooling and tempering the hot-compounded coil, with the tempering temperature maintained at 76-80°C to obtain the cooled and tempered coil; Step 5: Winding: The cooled and tempered coiled material is sent to the winder for winding to obtain a polymer double-sided composite wet-laid waterproofing coiled material; Step 6: Finished product inspection, packaging and warehousing: Conduct a comprehensive quality inspection on the finished products, including but not limited to thickness measurement, peel strength test and weather resistance evaluation, to ensure that each batch of products meets the standard requirements; then mark the necessary information on the outside of the qualified polymer double-sided composite wet-laid waterproof membrane, such as brand logo, model specifications, production date, etc.; then package according to customer requirements, generally wrap it with plastic film and place it in a carton, and send it to the warehouse for neat stacking.

5. A polymer double-sided composite wet-laid waterproofing membrane according to claim 4, characterized in that: In step 2, the preset temperatures of the extruder barrel are: 220-230°C in zone 1, 220-230°C in zone 2, 220-230°C in zone 3, 220-230°C in zone 4, 210-220°C in zone 5, 210-220°C in zone 6, 210-220°C in zone 7, and 210-220°C in zone 8.

6. The polymer double-sided composite wet-laid waterproofing membrane according to claim 4, characterized in that: In step 2, the preset temperatures of the extruder heads are: 185-195° C. in zone 1, 185-195° C. in zone 2, and 185-195° C. in zone 3.

7. The polymer double-sided composite wet-laid waterproofing membrane according to claim 4, characterized in that: In step 2, the preset temperatures of the extruder head distributor are: 185-195° C. in zone 1, 185-195° C. in zone 2, and 185-195° C. in zone 3.

8. The polymer double-sided composite wet-laid waterproofing membrane according to claim 4, characterized in that: In step 2, the preset temperatures of the melt pump of the extruder are: 190-200° C. at the inlet and 195-215° C. at the pump body.

9. The polymer double-sided composite wet-laid waterproofing membrane according to claim 4, characterized in that: In step 2, the mold setting temperatures for mold molding are: 185-195°C for zone 1, 195-205°C for zone 2, 200-210°C for zone 3, 210-220°C for zone 4, 210-220°C for zone 5, 210-220°C for zone 6, 210-220°C for zone 7, 210-220°C for zone 8, 210-220°C for zone 9, 210-220°C for zone 10, 210-220°C for zone 11, 210-220°C for zone 12, 200-210°C for zone 13, 195-205°C for zone 14, and 185-195 for zone 15.

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