Flame-retardant PVC (polyvinyl chloride) composite material and preparation method thereof

The technology of composite material and degree of polymerization is applied in the field of halloysite synergistic zinc hydroxystannate flame retardant PVC composite material and its preparation field, which can solve the problems of large amount of smoke and poor flame retardant performance, and achieves good dispersibility, The effect of reducing cost, improving mechanical properties and thermal stability

Inactive Publication Date: 2013-08-21
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The key problem to be solved in the present invention is to aim at the disadvantages of poor flame retardancy and large smoke generation of the modified PVC composite material,

Method used

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  • Flame-retardant PVC (polyvinyl chloride) composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1-5

[0027] The preparation of flame-retardant PVC composite material, the preparation steps are as follows:

[0028] Mix the components of the blended modified flame-retardant PVC composite material and then banbury on the internal mixer. The temperature of the internal mixer is 175°C to obtain a block material, and then press it on a flat vulcanizer at 185°C to form a flat plate. The final sample preparation test; the formula is as follows, see Table 1, and the properties obtained are shown in Table 2.

Embodiment 6-13

[0044] The preparation steps of flame retardant PVC composite materials of different systems are as follows:

[0045] Mix the components of the blended modified PVC composite material and then banbury on the internal mixer. The temperature of the internal mixer is 175°C to obtain a block material, and then press it on a flat vulcanizer at 185°C to form a flat plate, and finally make sample test. The formula is as follows, see Table 3, and the properties obtained are shown in Table 4.

[0046] Table 3 The distribution ratio of various components of flame-retardant PVC composite materials in different systems (fixed PVC and ABS weight sum is 100 parts)

[0047]

[0048] Table 4 Properties of flame retardant PVC composites in different systems

[0049]

[0050] From the data in Table 4, it can be seen that except for the composite material containing 90 phr of PVC, which has a large amount of smoke, the rest of the flame retardant and smoke suppression effects have good e...

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Abstract

The invention relates to PVC (polyvinyl chloride) and specifically relates to a flame-retardant composite material and a preparation method thereof, in particular to a flame-retardant PVC composite material with synergy of halloysite and zinc hydroxystannate and a preparation method thereof. The flame-retardant PVC composite material comprises the following components in parts by weight: 50-90 parts of PVC, 10-50 parts of acrylonitrile butadiene styrene (ABS), 2-8 parts of zinc hydroxystannate, 2-8 parts of halloysite, 3-5 parts of stabilizer, 5-10 parts of plasticizer, 0.5-1 part of antioxidant and 0.5-1 part of paraffin wax. An environment-friendly and economic flame-retardant composite material with excellent mechanical properties, thermal stability and flame retardance is prepared by utilizing the zinc hydroxystannate and the halloysite to realize synergic flame retardance.

Description

technical field [0001] The invention relates to PVC, specifically to a flame-retardant composite material and a preparation method thereof, in particular to a halloysite synergistic zinc hydroxystannate flame-retardant PVC composite material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a kind of good chemical stability, flame retardant self-extinguishing corrosion, insulation, resistance [0003] Amorphous polymers with the advantages of abrasion, low price, and wide source of raw materials are widely used in pipes, rods, films, insulating materials, anti-corrosion materials, building materials, etc., and its output is second only to polyethylene (PE) It ranks second in the world's resin production; however, its disadvantages such as large amount of smoke, poor thermal stability, notch sensitivity and difficult processing limit its application range; in order to improve the processing performance of PVC and broaden its applicati...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L55/02C08K3/34C08K3/24C08K5/134B29C47/92B29C48/92
CPCB29C48/92
Inventor 李锦春苍琼任强
Owner CHANGZHOU UNIV
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