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Non halogen flame retardant polyolefin/montmorillonite composite and preparation method thereof

A technology of composite materials and montmorillonite, which is applied in the field of halogen-free flame-retardant polyolefin/montmorillonite composite materials and its preparation, can solve the problems of large filling amount of flame retardants, expensive flame retardants, and affecting material properties, etc. , to achieve the effect of low cost, simple operation and reasonable process

Inactive Publication Date: 2010-06-23
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Halogen-free flame retardants mainly include metal hydroxides, phosphorus-based flame retardants, etc., but the direct use of such halogen-free flame retardants in practical applications is not ideal. On the one hand, the filling amount of flame retardants is large, which affects material properties. , on the other hand, flame retardants are expensive and not suitable for marketization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A preparation method of a halogen-free flame-retardant polyolefin / montmorillonite composite material, the method comprising the following steps:

[0035] The first step: the preparation of melamine montmorillonite:

[0036] (1) the montmorillonite original soil (cation exchange capacity is 45mequiv.100g -1 ) was dispersed in deionized water at a concentration of 9 wt%, and stirred at 70° C. for 4 hours;

[0037] (2) add melamine hydrogen bromide salt according to montmorillonite, melamine hydrogen bromide salt 30 weight parts, 70 weight parts, stir at 70 ℃ for 4 hours;

[0038] (3) filter, use a large amount of deionized water to wash the filter cake until no residual halide ion (detected with silver nitrate);

[0039] (4) vacuum drying at 80° C. for 2 hours to obtain melamine montmorillonite;

[0040] Step 2: Preparation of polypropylene maleic anhydride graft / montmorillonite composite masterbatch:

[0041] 70 parts of polypropylene maleic anhydride grafts (graft r...

Embodiment 2

[0048] A preparation method of a halogen-free flame-retardant polyolefin / montmorillonite composite material, the method comprising the following steps:

[0049] The first step: the preparation of melamine montmorillonite:

[0050] (1) The montmorillonite original soil (cation exchange capacity is 150mequiv.100g -1 ) was dispersed in deionized water with a concentration of 14wt%, and stirred at 60°C for 5.5 hours;

[0051] (2) According to 22 parts by weight of montmorillonite, 22 parts by weight of melamine hydrogen chloride salt, and 78 parts by weight of melamine hydrogen chloride salt, stir at 85 ° C for 1.2 hours;

[0052] (3) filter, use a large amount of deionized water to wash the filter cake until there is no residual halide ion (detected with silver nitrate);

[0053] (4) vacuum drying at 72° C. for 3.5 hours to obtain melamine montmorillonite;

[0054] The second step: preparation of polyethylene maleic anhydride graft / montmorillonite composite masterbatch:

[00...

Embodiment 3

[0062] A preparation method of a halogen-free flame-retardant polyolefin / montmorillonite composite material, the method comprising the following steps:

[0063] Step 1: Preparation of Ammonium Phosphate Montmorillonite:

[0064] (1) the montmorillonite original soil (cation exchange capacity is 220mequiv.100g -1 ) was dispersed in deionized water at a concentration of 1 wt%, and stirred at 50° C. for 2 hours;

[0065] (2) Add 50 parts by weight of montmorillonite, 50 parts by weight of ammonium phosphate hydrogen chloride, and 50 parts by weight of ammonium phosphate hydrogen chloride, and stir at 50 ° C for 0.5 hours;

[0066] (3) filter, use a large amount of deionized water to wash the filter cake until there is no residual halide ion (detected with silver nitrate);

[0067] (4) vacuum drying at 50°C for 5 hours to obtain ammonium phosphate montmorillonite;

[0068] The second step: preparation of ethylene-propylene copolymer glycidyl methacrylate graft / montmorillonite c...

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Abstract

The invention relates to a non halogen flame retardant polyolefin / montmorillonite composite and a preparation method thereof. The composite comprises the following raw materials in parts by weight: 50-85 parts of polyolefin, 10-20 parts of graft polyolefin / montmorillonite composite particle and 5-30 parts of nitrogenous flame retardant. Compared with the prior art, the preparation method has reasonable process and is operated simply, the inherent good performance of the montmorillonite is fully utilized, and the produced non halogen flame retardant polyolefin / montmorillonite composite has good flame retardant property, good mechanical and thermal properties and low cost, and is suitable for industrialized production.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant polyolefin material, in particular to a halogen-free flame-retardant polyolefin / montmorillonite composite material and a preparation method thereof. Background technique [0002] Polyolefin has the advantages of good comprehensive mechanical properties, non-toxic light weight, corrosion resistance, easy processing and low cost, and is widely used in packaging, building materials, automobiles, office supplies and daily necessities and other industries. With the progress of society, people have higher requirements for the safety of materials, especially the flame retardant performance of materials. Polyolefin is a flammable material with a large combustion calorific value, serious droplet phenomenon, and easy to spread flames. The flame retardant modification of polyolefin has become an important means to expand its application. [0003] The traditional flame retardant modification method is to add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/00C08K9/00C08K3/32C08K5/52C08K5/3492C08K3/30C08J3/22
Inventor 张冠解廷秀
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD