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Novel halogen-free flame-retardant master batch material

A flame retardant masterbatch, a novel technology, applied in the field of novel flame retardant masterbatch materials, can solve the problems of operator's physical harm, poor dispersion and compatibility, low flame retardant content, etc., to achieve environmental friendliness, no corrosion Good performance and mechanical properties

Inactive Publication Date: 2012-09-19
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (2) The working environment of the ingredients has been improved. Most of the flame retardants and additives are powder materials, and direct mixing will cause dust to fly and bring harm to the operator's body
[0010] However, the preparation of the flame retardant masterbatch, especially the preparation of the halogen-free flame retardant masterbatch, has various defects such as low flame retardant content, poor dispersion and compatibility, etc.

Method used

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  • Novel halogen-free flame-retardant master batch material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Mix 33.3g of amine polyphosphate with a size of 5-7μm, 16.7g of dipentaerythritol, and 0.1g of composite lubricant, and then add a mixture of 20g of maleic anhydride-grafted polypropylene and 80g of polypropylene. The above mixture is fed into a twin-screw extruder, extruded and granulated. A flame retardant polypropylene masterbatch with a flame retardant content of 33.3% by weight was obtained.

[0022] Using a 25-ton vulcanizing machine, mold the above-mentioned flame-retardant masterbatch at 180°C, and make a sample with a universal prototype machine. The sample size is 100×10×3mm, and the oxygen index meter JF-3 is used, according to the ASTME-1354 standard. Determination of the flame retardant properties of the material; make a dumbbell-shaped sample with a size of 150×10×4mm and 80×10×4mm, use a SANS electronic universal testing machine, and measure the tensile and bending strength of the material according to ASTM D638 and ASTM D256 standards . The test result...

Embodiment 2

[0024] Mix 53.3g of amine polyphosphate with a size of 5-7μm, 26.7g of dipentaerythritol, and 0.16g of compound lubricant, and then add 24g of maleic anhydride-grafted polypropylene and 96g of polypropylene mixture. The above mixture is fed into a twin-screw extruder, extruded and granulated. A flame retardant polypropylene masterbatch with a flame retardant content of 40% by weight was obtained.

[0025] Using a 25-ton vulcanizer, add the above-mentioned 64g flame-retardant masterbatch and 12.8g polypropylene into a twin-roller plastic mixer, knead at 170°C for 10 minutes to make it evenly mixed, and use a 25-ton vulcanizer to mold it at 180°C. Universal sample making machine sample, the sample size is 100×10×3mm, using the oxygen index meter JF-3, according to the ASTME-1354 standard, to measure the flame retardancy of the material; the sample size is 150×10×4mm dumbbell-shaped and 80×10×4mm, using SANS electronic universal testing machine, according to ASTM D638 and ASTM D...

Embodiment 3

[0027] Mix 82.2g of amine polyphosphate with a size of 5-7μm, 41.1g of dipentaerythritol, and 0.25g of compound lubricant, and then add 7.8g of maleic anhydride-grafted polypropylene and 25g of polypropylene mixture. The above mixture is fed into a twin-screw extruder, extruded and granulated. A flame retardant polypropylene masterbatch with a flame retardant content of 75% by weight was obtained.

[0028] Using a 25-ton vulcanizer, add the above-mentioned 40g flame-retardant masterbatch and 40g polypropylene into a twin-roller plastic mixer, knead at 170°C for 10 minutes to make it evenly mixed, and use a 25-ton vulcanizer to mold it at 180°C. Sampling machine sample, the sample size is 100 × 10 × 3mm, using the oxygen index meter JF-3, according to the ASTME-1354 standard, to measure the flame retardancy of the material; the sample size is 150 × 10 × 4mm dumbbell shape and 80 ×10×4mm, using SANS electronic universal testing machine, according to ASTM D638 and ASTM D256 stan...

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Abstract

The invention discloses a halogen-free flame-retardant master batch material, which is prepared by that the compounded system of phosphorus and nitrogen inrumescent flame retardant, such as pentaerythrite phosphate ester melamine salt or ammonium polyphosphate (APP) or melamine phosphate (MPP) and pentaerythritol is compatible with polypropylene, compound lubricant and antioxygen grafted with maleic anhydride, the processability of the phosphorus and nitrogen flame-retardant master batch material is greatly improved, and the adding amount of the flame retardant is regulated within a large range. The high-content flame-retardant master batch prepared from the novel halogen-free flame-retardant master batch material has the advantages of good moisture resistance and good compatibility with polymer, such as polypropylene, and the content of the flame retardant is as high as 90%. The obtained flame-retardant polypropylene has the advantages of good mechanical property, no halogen or toxin, no corrosivity, low smoke and small hygroscopicity, is easy to process and is environmentally friendly.

Description

technical field [0001] The invention relates to a novel flame-retardant masterbatch material, in particular to a phosphorus-nitrogen series expandable halogen-free flame-retardant masterbatch material. Background technique [0002] Flame retardant masterbatch is one of the best flame retardant products in resins such as plastics and rubber. It is a kind of granule product made by kneading, extruding and granulating through twin-screw or three-screw extruder. This granular product has the following advantages: [0003] (1) It simplifies the complex mixing process of directly adding flame retardants to polymers, and the masterbatch and polymers only need to be simply mixed. [0004] (2) The working environment of the ingredients is improved. Most of the flame retardants and additives are powdery materials, and direct mixing will cause dust to fly and bring harm to the operator's body. [0005] (3) It is beneficial to the dispersion uniformity of the flame retardant in the p...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L51/06C08K7/22C08K5/521C08K5/524C08K5/3492C08K3/32C08K5/053C08J3/22
Inventor 赵庆王幸宜戴启广
Owner EAST CHINA UNIV OF SCI & TECH
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