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Polyolefinic plastic with uvioresistant flame-retarded performance

A flame retardant, polyolefin technology, applied in the field of polyolefin plastics, to achieve good flame retardant effect

Active Publication Date: 2009-04-08
上海农园绿色工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a transparent polyolefin plastic with anti-ultraviolet and flame-retardant properties, and solve the technical problem that the additives for blocking ultraviolet rays and flame retardancy do not contain phosphorus and halogen

Method used

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  • Polyolefinic plastic with uvioresistant flame-retarded performance
  • Polyolefinic plastic with uvioresistant flame-retarded performance

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Experimental program
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Effect test

Embodiment 1

[0020] 0.1-3% of antioxidant (1010 or Ca or dltp), 0.5-1% of hindered amine flame retardant 116, 0.2-0.5% of hindered amine ultraviolet absorber 111, 119 or 622 and the rest After polyolefin plastics are mixed, various polyolefin plastic products are made by injection, extrusion, blow molding, salivation, stretching and other molding processes, and the burning speed is 100mm according to GB8410-94 and GB / T5454-1997 national standards. / min, and the limiting oxygen index is about 23.2%.

Embodiment 2

[0022] By weight percentage:

[0023] Antioxidant 0.1%~3%; hindered amine flame retardant 116>1%~<2%;

[0024] Hindered amine UV absorber 111, 119 or 622>0.5%~<1%; polyolefin plastics balance.

[0025] The formed polyolefin plastic has a burning speed of about 50mm / min and a limiting oxygen index of 26.3%.

Embodiment 3

[0027] By weight percentage:

[0028] Antioxidant 0.1~3%; hindered amine flame retardant 116≥2%;

[0029] Hindered amine UV absorber 111, 119 or 622≥1%; polyolefin plastics balance.

[0030] Composed of polyolefin plastics, the burning speed is about 0mm / min, and the limiting oxygen index is about 29.8%.

[0031] Because the present invention uses flame retardants and ultraviolet absorbers that are both hindered amines, it has the flame retardant effect of reinforced plastics, and these additives do not contain elements with toxic effects such as phosphorus and halogen, which are harmful to the flame retardant during flame retardancy. It is harmless to the human body.

[0032] Polyolefin plastics in the present invention include polyethylene (such as LDPE, MDPE, HDPE, VHMW-PE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), ethylene-acrylic acid copolymer (EAA), Ethylene-ethyl acrylate copolymer (EEA) and polystyrene (PS).

[0033] Although the polyolefin plas...

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Abstract

A polyolefin plastic with anti-ultraviolet and flame-retarding performance features that it contains proportionally hindered amine-type flame-retarding agent and hindered amine-type ultraviolet absorbent.

Description

Technical field: [0001] The invention relates to plastics, especially to polyolefin plastics with anti-ultraviolet and flame-retardant properties. Background technique: [0002] Polyolefin thermoplastics, such as low, medium, high density and ultra-high molecular weight polyethylene and polypropylene (LDPE, MDPE, HDPE, VHMW-PE, PP), ethylene-vinyl acetate copolymer (EVA), polystyrene ( PS), ethylene-acrylic acid copolymer (EAA), and ethylene-ethyl acrylate copolymer (EEA), are widely used in various fields of production and life due to their good elongation properties, electrical insulation and chemical stability. , Its transparency enables it to be made into various light-transmitting devices, films, etc., and its application range is expanded. In view of the fact that polyolefin plastic products are exposed to oxygen in the air for a long time, they are easy to age and become brittle and reduce their strength. Therefore, antioxidants are generally added to polyolefin plas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/00C08K5/3467
Inventor 沈黎明
Owner 上海农园绿色工程有限公司