Search

CN-121975210-A - High-flame-retardance anti-dripping exposed TPO waterproof roll material and preparation method thereof

CN121975210ACN 121975210 ACN121975210 ACN 121975210ACN-121975210-A

Abstract

The invention discloses a high-flame-retardant anti-dripping exposed TPO waterproof roll material and a preparation method thereof, and relates to the technical field of high polymer materials. The waterproof roll material comprises, by weight, 30-40 parts of thermoplastic resin, 20-30 parts of POE elastomer, 25-35 parts of flame retardant, 5-10 parts of filler, 1-5 parts of lubricant, 0.5-2 parts of antioxidant and 5-10 parts of anti-dripping auxiliary agent. The preparation method comprises the steps of adding thermoplastic resin, POE elastomer, filler, lubricant, antioxidant and organosilicon anti-dripping auxiliary agent into a high-speed kneader for mixing, and then feeding into a double-screw extruder for granulating to obtain the TPO waterproof roll material with high flame retardance and anti-dripping. The waterproof roll material is safe to store, can be thermally welded, is easy to process, and is environment-friendly and recyclable.

Inventors

  • SHI MENG
  • GU WEI
  • WEI RUYI

Assignees

  • 中广核高新核材(江苏)有限公司

Dates

Publication Date
20260505
Application Date
20260211

Claims (9)

  1. 1. A high-flame-retardant anti-dripping exposed TPO waterproof roll material is characterized by comprising the following raw materials in parts by weight: 30-40 parts of thermoplastic resin; 20-30 parts of POE elastomer; 25-35 parts of flame retardant; 5-10 parts of filler; 1-5 parts of a lubricant; 0.5-2 parts of an antioxidant; 5-10 parts of anti-dripping auxiliary agent.
  2. 2. The high flame retardant anti-dripping exposed TPO waterproof roll material of claim 1, wherein the thermoplastic resin comprises 50-75% of polypropylene and 25-50% of polyethylene, the melt indexes of the polypropylene and the polyethylene are 1.0-10.0 g/10min, and the polypropylene is a copolymer of ethylene and propylene.
  3. 3. The high flame retardant anti-dripping exposed TPO waterproof roll material of claim 1, wherein the POE elastomer is an ethylene homo-polyolefin elastomer prepared by solution polymerization of a metallocene catalyst and has a hyperbranched three-dimensional network structure, 20 ethyl short branched chains and 14-16 long branched points are corresponding to each 1000 main chain carbon atoms on average, the branching factor g is 0.65+/-0.03, the tensile strength is 15-22MPa, the tearing strength is 60-70 kN/m, and the melt strength is 2.5-4.0cN.
  4. 4. The high flame retardant anti-dripping exposed TPO waterproof roll material of claim 1, wherein the flame retardant is one or a combination of more of magnesium hydroxide, aluminum hydroxide, zinc oxide, decabromodiphenyl alkane and antimony trioxide.
  5. 5. The high flame retardant anti-dripping exposed TPO waterproof roll material of claim 1, wherein the filler is any one of talcum powder, titanium dioxide, superfine calcium carbonate and kaolin.
  6. 6. The high flame retardant anti-dripping exposed TPO waterproof roll material of claim 1, wherein the lubricant is one or a combination of more of silicone, silicone oil, erucamide, stearate, PE wax and paraffin wax.
  7. 7. The high flame retardant anti-drip exposed TPO waterproof roll material of claim 1, wherein the antioxidant is one or more of antioxidant 1098, antioxidant 1010, antioxidant 3450, antioxidant 2246, antioxidant 225, antioxidant 405 and antioxidant 445.
  8. 8. The high flame retardant anti-dripping exposed TPO waterproof roll material of claim 1, wherein the anti-dripping auxiliary agent is one or a combination of more of ammonium polyphosphate, organic silicon resin and spherical silicon dioxide.
  9. 9. A preparation method of a high-flame-retardant anti-dripping exposed TPO waterproof roll material is characterized by comprising the following steps of: Step one, preparing an intermediate: Mixing thermoplastic resin, POE elastomer, a first part of flame retardant, filler, lubricant and antioxidant according to parts by weight, putting the mixture into an internal mixer, wherein the internal mixing temperature is 170-195 ℃ and the internal mixing time is 25-35 min, and granulating the mixture by a single screw extruder with the same set temperature as the internal mixing temperature to obtain a thermoplastic elastomer intermediate; Preparing a high-flame-retardant anti-dripping exposed TPO waterproof roll material: Mixing the thermoplastic elastomer intermediate obtained in the step one with a second part of flame retardant and anti-dripping auxiliary agent which are prepared according to parts by weight, extruding and granulating on a double-screw extruder by adopting a dynamic vulcanization process, wherein the vulcanization temperature is 170-200 ℃ and the rotating speed is 200-350 r/min, so as to obtain the high-flame-retardant anti-dripping exposed TPO waterproof roll material; the mass ratio of the first part of flame retardant to the second part of flame retardant is 2:1.

Description

High-flame-retardance anti-dripping exposed TPO waterproof roll material and preparation method thereof Technical Field The invention relates to the technical field of high polymer materials, in particular to a high-flame-retardant anti-dripping exposed TPO waterproof roll material and a preparation method thereof. Background The waterproof material plays a vital role in the application of structures such as buildings, bridges, tunnels and the like, can not only prevent the corrosion of the structures by the mediums such as rainwater, sewage, moist air and the like, but also ensure the structural strength of the structures, ensure the use safety and prolong the service life of the structures. The organic waterproof materials can be divided into waterproof coating materials, asphalt-based waterproof coiled materials and high polymer-based waterproof coiled materials (such as ethylene propylene diene monomer waterproof coiled materials, polyvinyl chloride waterproof coiled materials and chlorinated polyethylene waterproof coiled materials) according to the forms, but the organic waterproof materials have obvious defects that the organic solvent type waterproof coating materials have hidden danger of inflammability and explosiveness and environmental pollution, the asphalt-based waterproof coiled materials have poor low-temperature flexibility, and the polyvinyl chloride waterproof coiled materials have the problems of poor heat resistance, insufficient illumination resistance and the like. TPO waterproof coiled material is an environment-friendly high polymer waterproof material, and has been widely accepted in industry by virtue of excellent physical and mechanical properties, reliable installation performance and excellent application effect of long-term use verification. The waterproof coiled material does not contain chlorine element and plasticizer, and no harmful volatile matters are released in the processing process, so that the waterproof coiled material has the advantages of long-term weather resistance, thermal stability and the like, but TPO base materials have no flame retardant property, and can generate dripping and fuming phenomena during combustion, so that potential safety hazards exist. The inflammability defect of TPO waterproof coiled material severely limits the popularization and application of TPO waterproof coiled material in various structures. Therefore, developing a TPO waterproof material with high flame retardance, drip resistance, easy processing, environmental protection and recycling performance becomes a technical problem to be solved at present. Disclosure of Invention The invention aims to provide a high-flame-retardant anti-dripping exposed TPO waterproof roll material and a preparation method thereof. In order to achieve the above purpose, the invention adopts the following technical scheme: the high flame-retardant anti-dripping exposed TPO waterproof roll material comprises the following raw materials in parts by weight: 30-40 parts of thermoplastic resin; 20-30 parts of POE elastomer; 25-35 parts of flame retardant; 5-10 parts of filler; 1-5 parts of a lubricant; 0.5-2 parts of an antioxidant; 5-10 parts of anti-dripping auxiliary agent. According to a further technical scheme, the thermoplastic resin comprises polypropylene and polyethylene, wherein the polypropylene accounts for 50-75% of the thermoplastic resin, the polyethylene accounts for 25-50% of the thermoplastic resin, the melt indexes of the polypropylene and the polyethylene are 1.0-10.0 g/10min, and the polypropylene is a copolymer of ethylene and propylene. According to a further technical scheme, the POE elastomer is an ethylene homo-polyolefin elastomer prepared by solution polymerization through a metallocene catalyst and has a hyperbranched three-dimensional network structure, wherein the average carbon atoms of every 1000 main chains of the POE elastomer correspond to 20 ethyl short branched chains and 14-16 long chain branched points, the branching factor g is 0.65+/-0.03 (characterized by adopting 13 C-NMR, SEC-MALS and other methods), the tensile strength is 15-22MPa, the tearing strength is 60-70 kN/m, and the melt strength is 2.5-4.0cN. According to a further technical scheme, the flame retardant is one or a combination of more of magnesium hydroxide, aluminum hydroxide, zinc oxide, decabromodiphenyl alkane and antimonous oxide. According to a further technical scheme, the filler is any one of talcum powder, titanium dioxide, superfine calcium carbonate and kaolin. According to a further technical scheme, the lubricant is one or a combination of more of silicone, silicone oil, erucamide, stearate, PE wax and paraffin wax. According to a further technical scheme, the antioxidant is one or a combination of more of an antioxidant 1098, an antioxidant 1010, an antioxidant 3450, an antioxidant 2246, an antioxidant 225, an antioxidant 405 and an antioxidant 445. According to a further technical scheme