Waterproof coiled material and preparation method thereof

Abstract

The invention provides a waterproof roll and a preparation method thereof, the waterproof roll sequentially comprises a non-woven fabric layer, a PVC waterproof layer, a self-adhesive layer and release paper from top to bottom, and the PVC waterproof layer comprises polyvinyl chloride resin, a plasticizer, a stabilizer, a filler, an anti-aging agent, an ultraviolet light absorber, a pigment and a flame retardant. The flame retardant is added into the PVC waterproof layer, so that the flame-retardant effect of the waterproof roll is good.

Description

Technical Field

[0001] The invention belongs to the technical field of waterproof coiled materials, and in particular relates to a waterproof coiled material and a preparation method thereof. Background Art

[0002] The waterproofing membrane includes non-woven fabric layer, PVC waterproofing layer, self-adhesive layer and isolation paper from top to bottom. The PVC waterproofing layer includes polyvinyl chloride resin, plasticizer, stabilizer, filler, anti-aging agent, ultraviolet absorber and pigment. The PVC waterproofing layer is easy to catch fire under high temperature conditions. Summary of the invention

[0003] In view of this, the present invention provides a waterproof coiled material and a preparation method thereof, which has good flame retardant effect.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: On the one hand, the present invention provides a waterproof roll material, which includes a non-woven fabric layer, a PVC waterproof layer, a self-adhesive layer, and a release paper from top to bottom, wherein the PVC waterproof layer includes: polyvinyl chloride resin, a plasticizer, a stabilizer, a filler, an anti-aging agent, an ultraviolet absorber, a pigment, and a flame retardant.

[0005] Preferably, the flame retardant includes chlorinated paraffin, phosphates or chlorinated polyethylene.

[0006] Preferably, the weight proportion of the polyvinyl chloride resin is 60-80 parts; the weight proportion of the plasticizer is 10-30 parts; the weight proportion of the stabilizer is 1-5 parts; the weight proportion of the filler is 5-20 parts; the weight proportion of the anti-aging agent is 0.5-2 parts; the weight proportion of the ultraviolet absorber is 0.5-3 parts; the weight proportion of the pigment is 0.5-2 parts; and the weight proportion of the pigment is 1-10 parts.

[0007] Preferably, the plasticizer includes dioctyl phthalate, diisononyl phthalate or diisodecyl phthalate.

[0008] Preferably, the stabilizer comprises calcium chloride or dibutyltin.

[0009] Preferably, the filler comprises calcium carbonate or talc.

[0010] Preferably, the anti-aging agent comprises 2,6-di-tert-butyl-p-cresol.

[0011] Preferably, the ultraviolet absorber includes BP-3 or UV-531.

[0012] Preferably, the pigment comprises titanium dioxide.

[0013] In another aspect, the present invention provides a method for preparing the waterproof coiled material, comprising the following steps: S1, the polyvinyl chloride resin, plasticizer, stabilizer, filler, anti-aging agent, The ultraviolet absorber, the pigment and the flame retardant are mixed to obtain a mixture; S2, extruding, stretching and surface treating the mixture to obtain a PVC waterproof layer; S3, laying a non-woven fabric layer on the top of the PVC waterproof layer, and laying a self-adhesive layer and a release paper in sequence under the PVC waterproof layer to obtain a waterproof coiled material.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The invention adds a flame retardant to the PVC waterproof layer, so that the waterproof coiled material has a good flame retardant effect. DETAILED DESCRIPTION

[0015] The present invention is further described in detail below in conjunction with specific embodiments so that those skilled in the art can understand the present invention more clearly.

[0016] Example 1 Provided is a waterproof coiled material, which comprises, from top to bottom, a non-woven fabric layer, a PVC waterproof layer, a self-adhesive layer, and a release paper, wherein the PVC waterproof layer comprises 60 parts of polyvinyl chloride resin, 10 parts of dioctyl phthalate, 1 part of calcium chloride or dibutyl tin, 5 parts of calcium carbonate, 0.5 parts of 2,6-di-tert-butyl-p-cresol, 0.5 parts of BP-3, 0.5 parts of titanium dioxide, and 1 part of chlorinated paraffin.

[0017] The preparation method of the waterproof coiled material is as follows: the polyvinyl chloride resin, plasticizer, stabilizer, filler, anti-aging agent, ultraviolet absorber, pigment and flame retardant are mixed at a temperature of 160° C. to obtain a mixture. The mixture is extruded into a thickness of 1 mm using an extrusion device to obtain a waterproof film. The waterproof film is cooled, stretched and surface treated to obtain a PVC waterproof layer, a non-woven fabric layer is laid on the top of the PVC waterproof layer, and a self-adhesive layer and a release paper are laid in sequence under the PVC waterproof layer to obtain a waterproof coiled material.

[0018] Example 2 Provided is a waterproof coiled material, which comprises, from top to bottom, a non-woven fabric layer, a PVC waterproof layer, a self-adhesive layer, and a release paper, wherein the PVC waterproof layer comprises 70 parts of polyvinyl chloride resin, 20 parts of dioctyl phthalate, 3 parts of calcium chloride or dibutyl tin, 10 parts of calcium carbonate, 1 part of 2,6-di-tert-butyl-p-cresol, 1.5 parts of BP-3, 1 part of titanium dioxide, and 5 parts of chlorinated paraffin.

[0019] The preparation method is the same as that in Example 1.

[0020] Example 3 Provided is a waterproof coiled material, which comprises, from top to bottom, a non-woven fabric layer, a PVC waterproof layer, a self-adhesive layer, and a release paper, wherein the PVC waterproof layer comprises 80 parts of polyvinyl chloride resin, 30 parts of dioctyl phthalate, 5 parts of calcium chloride or dibutyl tin, 20 parts of calcium carbonate, 2 parts of 2,6-di-tert-butyl-p-cresol, 3 parts of BP-3, 2 parts of titanium dioxide, and 10 parts of chlorinated paraffin.

[0021] The preparation method is the same as that in Example 1.

[0022] Comparative Example 1 A waterproof roll material is provided, the raw materials and preparation method are the same as those in Example 3, except that no chlorinated paraffin is added.

[0023] Performance testing and results At room temperature of 24°C, the ignition points of the waterproof membranes prepared in Example 3 and Comparative Example 1 were detected by conventional methods. The ignition point temperature of Example 3 was 400°C, and the ignition point temperature of Comparative Example 1 was 350°C. Example 3 had a good flame retardant effect and was safer.

[0024] The specific raw materials not described in the present invention are all existing materials and can be directly purchased from the market.

[0025] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof roll material, characterized in that: From top to bottom, it includes a non-woven fabric layer, a PVC waterproof layer, a self-adhesive layer, and a release paper. The PVC waterproof layer includes: Polyvinyl chloride resin; Plasticizers; Stabilizers; filler; Anti-aging agents; UV absorbers; Pigments; and Flame retardant.

2. The waterproof coiled material according to claim 1, characterized in that: The flame retardant includes chlorinated paraffin, phosphates or chlorinated polyethylene.

3. The waterproof coiled material according to claim 1, characterized in that: The weight proportion of the polyvinyl chloride resin is 60-80 parts; the weight proportion of the plasticizer is 10-30 parts; the weight proportion of the stabilizer is 1-5 parts; the weight proportion of the filler is 5-20 parts; the weight proportion of the anti-aging agent is 0.5-2 parts; the weight proportion of the ultraviolet absorber is 0.5-3 parts; the weight proportion of the pigment is 0.5-2 parts; and the weight proportion of the flame retardant is 1-10 parts.

4. The waterproof coiled material according to claim 1, characterized in that: The plasticizer includes dioctyl phthalate, diisononyl phthalate or diisodecyl phthalate.

5. The waterproof coiled material according to claim 1, characterized in that: The stabilizer includes calcium chloride or dibutyltin.

6. The waterproof coiled material according to claim 1, characterized in that: The filler includes calcium carbonate or talc.

7. The waterproof coiled material according to claim 1, characterized in that: The anti-aging agent includes 2,6-di-tert-butyl-p-cresol.

8. The waterproof coiled material according to claim 1, characterized in that: The ultraviolet absorber includes BP-3 or UV-531.

9. The waterproof coiled material according to claim 1, characterized in that: The pigment includes titanium dioxide.

10. The method for preparing the waterproof coiled material according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the polyvinyl chloride resin, plasticizer, stabilizer, filler, anti-aging agent, The ultraviolet absorber, the pigment and the flame retardant are mixed to obtain a mixture; S2, extruding, stretching and surface treating the mixture to obtain a PVC waterproof layer; S3, laying a non-woven fabric layer on the top of the PVC waterproof layer, and laying a self-adhesive layer and a release paper in sequence under the PVC waterproof layer to obtain a waterproof coiled material.