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Transparent flame retarding polyvinyl chloride (PVC) composite and preparation method thereof

A technology for flame retardant polyvinyl chloride and polyvinyl chloride, which is applied in the field of soft polyvinyl chloride composition and its preparation, can solve the problems of reduced flame retardant performance, not too much dosage, decreased transparency and the like, and achieves improved flame retardant performance , the preparation process is simple, the effect of good transparency

Active Publication Date: 2010-07-07
NINGBO XIANFENG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when used as a soft material, it is necessary to add a large amount of plasticizers, such as phthalates, to the polyvinyl chloride resin, so that its flame retardant performance is greatly reduced, and there is a problem that the flame retardant performance is reduced.
Most of the flame retardants used for soft PVC flame retardant are inorganic powder flame retardants, such as antimony trioxide, antimony pentoxide, zinc borate, aluminum hydroxide, magnesium hydroxide, metal oxides, etc. While achieving the purpose of flame retardant, the transparency of the material is significantly reduced. The greater the amount of flame retardant, the worse the transparency, or even completely opaque; and the compatibility of phosphate organic flame retardants with PVC resin is limited, high dosage It will precipitate on the surface and affect the surface properties of the product. Therefore, the amount of phosphate organic flame retardants should not be too much

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 100 parts of polyvinyl chloride resin, 2.0 parts of calcium / zinc composite stabilizer, 40 parts of diisooctyl phthalate, 10 parts of triphenyl phosphate, 2 parts of nanometer antimony trioxide and 1.0 part of polyethylene wax in Mix in a high-speed mixer, heat up to 110°C, then cool to below 45°C and discharge, use an extruder to granulate, and make a standard sample. The flame retardancy and transparency of the material are tested. The test data are shown in Table 1.

Embodiment 2

[0045] 100 parts of polyvinyl chloride resin, 2 parts of calcium / zinc composite stabilizer, 35 parts of diisooctyl phthalate, 15 parts of triphenyl phosphate, 2 parts of nano antimony trioxide and 1.0 part of polyethylene wax in Mix in a high-speed mixer, heat up to 110°C, then cool to below 45°C and discharge, use an extruder to granulate, and make a standard sample. The flame retardancy and transparency of the material are tested. The test data are shown in Table 1.

Embodiment 3

[0047] 100 parts of polyvinyl chloride resin, 2 parts of calcium / zinc composite stabilizer, 30 parts of diisooctyl phthalate, 20 parts of triphenyl phosphate, 2 parts of nano antimony trioxide and 1.0 part of polyethylene wax in Mix in a high-speed mixer, heat up to 110°C, then cool to below 45°C and discharge, use an extruder to granulate, and make a standard sample. The flame retardancy and transparency of the material are tested. The test data are shown in Table 1.

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PUM

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Abstract

The invention discloses a transparent flame retarding polyvinyl chloride (PVC) composite and a preparation method thereof. The composite is prepared as that the polyvinyl chloride (PVC), plasticizer, heat stabilizer, flame retardant and lubricant are melted and mixed in a certain proportion in an extruding machine. In the invention, liquid flame retarding plasticizer and nanometer powder flame retardant are used as the flame retarding system in order to fully develop the coordinative action of the organic flame retardant and the nanometer inorganic flame retardant, thereby the flame retarding performance of the soft polyvinyl chloride material is greatly improved and the soft polyvinyl chloride composite with flame retarding performance and good transparency is prepared; the preparation technique is simple and easy for operation.

Description

technical field [0001] The invention relates to a soft polyvinyl chloride composition and a preparation method thereof, in particular to a transparent flame-retardant soft polyvinyl chloride composition and a preparation method thereof Background technique [0002] Polyvinyl chloride resin (PVC) itself has good fire resistance properties, its chlorine content reaches 56%, and its oxygen index is 45%. However, when it is used as a soft material, it is necessary to add a large amount of plasticizers, such as phthalates, to the polyvinyl chloride resin, so that its flame retardant performance is greatly reduced, and there is a problem that the flame retardant performance is reduced. Most of the flame retardants used for soft PVC flame retardant are inorganic powder flame retardants, such as antimony trioxide, antimony pentoxide, zinc borate, aluminum hydroxide, magnesium hydroxide, metal oxides, etc. While achieving the purpose of flame retardant, the transparency of the mater...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K5/521C08K3/22B29B9/06
Inventor 卢先锋潘祥江
Owner NINGBO XIANFENG NEW MATERIAL
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