Low-smoke halide-free fireproof polyolefine material and its preparation method and application

A polyolefin base material and polyolefin technology are applied in the field of low-smoke halogen-free flame-retardant polyolefin materials and their preparation, and can solve the problem that polyolefin materials cannot be conformed, polyolefin base materials and flame retardants are fully compatible, and the performance Without waiting for the problem, to achieve the effect of simple formula, easy industrial production and small side reaction

Active Publication Date: 2008-01-09
上海世龙科技有限公司
View PDF3 Cites 46 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no low-smoke halogen-free flame-retardant polyolefin shrink tube in other colors than black and red that has passed the VW-1 vertical combustion performance test in the UL224 standard.
The reason may be: if the colored flame retardant red phosphorus is not used, the flame retardant effect of other existing white flame retardants is far lower than red phos

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation of embodiment 1 EVA-g-MAH

[0032] Dissolve 1 kg of maleic anhydride in 2 kg of acetone and mix with 100 kg of ethylene-vinyl acetate copolymer (EVA) in a high-speed mixer, wait for the acetone to volatilize, and then granulate in a twin-screw extruder at a temperature range of 100 to 150 °C, and then EVA-g-MAH with a grafting rate of 0.4% was obtained by irradiating 15KGy in an electron beam of an electron accelerator.

Embodiment 2

[0033] The preparation of embodiment 2 EVA-g-MAH

[0034] Dissolve 3kg of maleic anhydride in 6kg of acetone and mix with 100kg of ethylene-vinyl acetate copolymer (EVA) in a high-speed mixer, wait for the acetone to volatilize, and then granulate in a twin-screw extruder at a temperature range of 100 to 150°C, then exist 60 EVA-g-MAH with a grafting rate of 1% was obtained by irradiating 20KGy in γ-rays from a Co source.

Embodiment 3

[0035] The preparation of embodiment 3 EVA-g-MAH

[0036] Dissolve 5kg of maleic anhydride in 10kg of acetone and mix with 100kg of ethylene-vinyl acetate copolymer (EVA) in a high-speed mixer, wait for the acetone to volatilize, and then granulate in a twin-screw extruder at a temperature range of 100 to 150°C. exist 60 EVA-g-MAH with a grafting rate of 1.5% was obtained by irradiating 25KGy in γ-rays from a Co source.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A low-smoke and non-halogen poly-olefine material with radiant graft maleic anhydride vinyl-vinyl acetate multi-polymer as compatilizer is prepared by dissolving maleic anhydride 1-5 proportion into acetone, mixing with vinyl-vinyl acetate multi-polymer 100 proportion, volatilizing for acetone, granulating in double-screw extruder, and electronic-ray or gamma-ray radiating by electronic accelerator with 5-30KGy. The compatilizer graft rate is greater than or equal to 1%, it has better poly-olefine material performance, more white fire retardant and no need for anti-smoke agent. It can be used to make poly-olefine thermal shrinkage pipe with VW-1 vertical burning performance according to UL224 standard.

Description

technical field [0001] The invention relates to a low-smoke, halogen-free flame-retardant polyolefin material, a preparation method and application thereof. Background technique [0002] In 2002, the European Union formulated the "Electronic Waste Disposal Law" consisting of two directives, one of which is the "Directive on the Prohibition of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment" (ROHS). The ROHS Directive requires that electrical and electronic products put on the EU market after July 1, 2006 must not contain six harmful substances including lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls and polybrominated diphenyl ethers. At the beginning of 2004, the Ministry of Information Industry of the People's Republic of China formulated the "Administrative Measures for the Prevention and Control of Pollution by Electronic Information Products" (referred to as the "Measures") in accordance with the "Clean Production Pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L23/08C08L23/16C08K5/29B29C47/40B29B9/12B29C48/40
CPCB29C48/40
Inventor 张聪谢雷东陈西良
Owner 上海世龙科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap