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Auxiliary agent for improving flame retardant property of polymer coiled material

A flame retardant and polymer technology, which is applied in the field of additives to improve the flame retardant performance of polymer membranes, can solve the problems that the flame retardant performance of PVC waterproof membranes cannot be improved, and the best flame retardant effect cannot be achieved. Achieve the effect of improved dispersion uniformity, excellent flame retardant effect and good flame retardant performance

Active Publication Date: 2022-01-21
苏州卓宝科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the inventor actually studied the technical solution, he found that only adding antimony trioxide could not achieve a better flame retardant effect, and the flame retardant performance of the PVC waterproof membrane could not be improved to B1 ( flame retardant material) grade

Method used

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  • Auxiliary agent for improving flame retardant property of polymer coiled material
  • Auxiliary agent for improving flame retardant property of polymer coiled material
  • Auxiliary agent for improving flame retardant property of polymer coiled material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0062] A composite flame retardant, the composition is as follows:

[0063] Decabromodiphenylethane 25%

[0064] Antimony Trioxide 5%

[0065] Molybdenum trioxide 5%

[0066] Calcium Carbonate 65%.

[0067] A polyvinyl chloride macromolecule waterproof membrane, the formula is as follows:

[0068]

[0069] Preparation of polyvinyl chloride polymer waterproof membrane:

[0070] S1. Mix polyvinyl chloride resin, light calcium, titanium dioxide, carbon black and composite flame retardant according to the weight ratio, then add plasticizer DOP, and mix evenly to obtain a mixed material;

[0071] S2. Feed the above mixture into a twin-screw extruder, set the temperature of the extruder to 200-250°C, set the speed to 300-400 rpm, and extrude to make tablets with a thickness of 1.2mm .

[0072] Curing conditions: 23°C±2°C, humidity 60%±15%, observe after 24 hours of curing, the surface of the sheet is smooth, the edges are neat, and there are no cracks, voids, bonds, bubbles...

Embodiment example 2

[0077] A composite flame retardant, the composition is as follows:

[0078] Decabromodiphenylethane 15%

[0079] Antimony Trioxide 10%

[0080] Molybdenum trioxide 5%

[0081] Calcium Carbonate 70%.

[0082] A polyvinyl chloride macromolecule waterproof membrane, the formula is as follows:

[0083]

[0084] Preparation of polyvinyl chloride polymer waterproof membrane:

[0085] S1. Mix polyvinyl chloride resin, light calcium, titanium dioxide, carbon black and composite flame retardant according to the weight ratio, then add plasticizer DOP, and mix evenly to obtain a mixed material;

[0086] S2. Feed the above mixture into a twin-screw extruder, set the temperature of the extruder to 200-250°C, set the speed to 300-400 rpm, and extrude to make tablets with a thickness of 1.2mm .

[0087] Curing conditions: 23°C±2°C, humidity 60%±15%, observe after 24 hours of curing, the surface of the sheet is smooth, the edges are neat, and there are no cracks, voids, bonds, bubble...

Embodiment example 3

[0092] A composite flame retardant, the composition is as follows:

[0093] Decabromodiphenylethane 25%

[0094] Antimony Trioxide 10%

[0095] Molybdenum trioxide 5%

[0096] Calcium Carbonate 60%.

[0097] A polyvinyl chloride macromolecule waterproof membrane, the formula is as follows:

[0098]

[0099] Preparation of polyvinyl chloride polymer waterproof membrane:

[0100] S1. Mix polyvinyl chloride resin, light calcium, titanium dioxide, carbon black and composite flame retardant according to the weight ratio, then add plasticizer DOP, and mix evenly to obtain a mixed material;

[0101] S2. Feed the above mixture into a twin-screw extruder, set the temperature of the extruder to 200-250°C, set the speed to 300-400 rpm, and extrude to make tablets with a thickness of 1.2mm .

[0102] Curing conditions: 23°C±2°C, humidity 60%±15%, observe after 24 hours of curing, the surface of the sheet is smooth, the edges are neat, and there are no cracks, voids, bonds, bubble...

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Abstract

The invention provides an auxiliary agent for improving the flame retardant property of a polymer coiled material. The auxiliary agent comprises the following components in percentage by weight: 15-25% of decabromodiphenyl ethane; 5%-10% of diantimony trioxide; 3%-6% of molybdenum trioxide; and 60%-77% of calcium carbonate. According to the auxiliary agent for improving the flame retardant property of the polymer coiled material, the decabromodiphenyl ethane, the diantimony trioxide and the molybdenum trioxide are selected from numerous flame retardant substances through a large number of experiments, and the content of the three substances is further researched and adjusted, so that the compounding effect is good. Calcium carbonate is adopted as a dispersion medium, and the mixing uniformity of the three substances and the dispersion uniformity of the three substances in the preparation process of a PVC waterproof coiled material are obviously improved. When the flame retardant is added into a polyvinyl chloride (PVC) waterproof coiled material, the grade B2 (combustible material) of the polyvinyl chloride (PVC) polymer waterproof coiled material specified in GB 8624-2012 is successfully improved to the grade B1 (flame retardant material).

Description

technical field [0001] The invention belongs to the technical field of waterproof coiled materials, and in particular relates to an auxiliary agent for improving the flame-retardant performance of polymer coiled materials. Background technique [0002] Polyvinyl chloride (PVC for short) waterproof membrane is a polymer waterproof membrane extruded from polyvinyl chloride resin as raw material and mixed with various additives. It has the advantages of green environmental protection, non-toxic, harmless, non-polluting, strong plasticity, and aging resistance. PVC resin has a certain flame retardant effect, but a large amount of plasticizer will be used in the production of PVC waterproof membrane, and the use of a large amount of plasticizer will invalidate the flame retardant properties of PVC. When the use environment has high requirements on the fire resistance of PVC waterproof membrane, it is necessary to add flame retardant additives to PVC waterproof membrane. [0003...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08K5/03C08K3/22C08K3/26C08K3/04C08K5/12C08K13/02
CPCC08K5/03C08K3/2279C08K3/22C08K3/26C08K3/04C08K5/12C08K13/02C08L2201/02C08K2003/265C08K2003/2241C08K2003/2255C08L27/06
Inventor 王聪迪缪线生郭阳曹进明吴帅
Owner 苏州卓宝科技有限公司
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