Halogen-free flame retardant PVC elastic material and preparation method thereof

A production method and elastic material technology, applied in the field of polymer composite material preparation, can solve the problems of easy generation of toxic and harmful gases, poor flame retardancy, etc., and achieve good environmental protection flame retardancy, good thermal stability, and good flame retardancy effect Effect

Active Publication Date: 2012-05-09
JIANGSU XINGHUA RUBBER BELT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor flame retardancy of commonly produced PVC thermoplastic

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] 1. Example 1:

[0030] The halogen-free flame-retardant PVC elastomer special material for elevator balance compensation chain sheath of this embodiment is a blending system composed of PVC resin and additives blended in the PVC resin. Additives include tougheners, plasticizers, stabilizers, lubricants, flame retardants and pigments. There are two plasticizers, the first is dioctyl phthalate, the second is diphenyl monooctyl phosphate, dioctyl phthalate and diphenyl monooctyl phosphate are 4~10:1 The weight ratio of the mixture is composed of mixed plasticizers. In the 232.8kg halogen-free flame-retardant PVC elastomer special material for elevator balance compensation chain sheath, the components and contents are as follows:

[0031] PVC resin 100kg, toughening agent chlorinated polyethylene 12kg, heat stabilizer non-toxic liquid calcium-zinc stabilizer 7kg, plasticizer dioctyl phthalate 50kg, diphenyl iso-octyl phosphate 10kg, hard lubricant 3.5kg of zinc fatty acid, 0....

Example Embodiment

[0043] 2. Example 2:

[0044] The rest of this embodiment is the same as embodiment 1, except that: in the 232.8kg special material for halogen-free flame-retardant PVC elastomer for elevator balance compensation chain sheath, the components and corresponding contents are as follows:

[0045] PVC resin 100kg, toughening agent chlorinated polyethylene 17kg, heat stabilizer non-toxic liquid calcium-zinc stabilizer 7kg, plasticizer dioctyl phthalate 45kg, diphenyl iso-octyl phosphate 10kg, hard lubricant 3.5kg of zinc fatty acid, 0.3kg of pigment carbon black, 50kg of flame retardant modified micron aluminum hydroxide.

[0046] In step ②, the weight of the various raw materials weighed corresponds to the content of the above components, that is, 100 kg of S-1300 PVC resin, 17 kg of toughening agent chlorinated polyethylene, and 7 kg of liquid calcium-zinc are weighed. Stabilizer, 45kg of dioctyl phthalate, 10kg of diphenyl monooctyl phosphate, 50kg of modified micron aluminum hydroxide...

Example Embodiment

[0048] Three, embodiment 3:

[0049] The rest of this embodiment is the same as embodiment 1, except that: in the 246.3kg special material for halogen-free flame-retardant PVC elastomer for elevator balance compensation chain sheath, the components and corresponding contents are as follows:

[0050] PVC resin 100kg, toughening agent chlorinated polyethylene 15kg, heat stabilizer non-toxic liquid calcium-zinc stabilizer 7kg, plasticizer dioctyl phthalate 50kg, diphenyl iso-octyl phosphate 10kg, hard lubricant Zinc fatty acid 4kg, pigment carbon black 0.3kg, flame retardant modified micron aluminum hydroxide 60kg.

[0051] Correspondingly, when preparing the above-mentioned non-halogen flame-retardant PVC elastomer special material for elevator balance compensation chain sheath, in step ②, the weight of various raw materials weighed corresponds to the content of each component, that is Weigh 100kg of S-1300 PVC resin, 15kg of toughening agent chlorinated polyethylene, 7kg of liquid ca...

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Abstract

The invention provides a halogen-free flame retardant PVC elastic material and a preparation method thereof, relating to a preparation method of a polymer composite material. The preparation method comprises the following steps of: mixing PVC resin in a kneader till the temperature is 70-80 DEG C; then adding a stabilizing agent, a plasticizer, a lubricant, pigments and a halogen-free flame retardant and continuing mixing till the temperature of the mixture is 85-95 DEG C and discharging the mixed material; cooling the mixed material in a cooling stirrer to 40-50 DEG C; and adding the cooled mixed material in a twin-screw extruder, and extruding strip-shaped halogen-free flame retardant PVC elastic material under the condition that the temperature of an extrusion die head is 130-150 DEG C. An elevator balance compensation chain sheath prepared from the special material provided by the invention has beautiful appearance, good toughness, good aging resistance, high thermal stability andgood fire retardant effect.

Description

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Claims

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Application Information

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Owner JIANGSU XINGHUA RUBBER BELT
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