High-CTI (Comparative Tracking Index) anti-flaming PA (Polyamide) for photovoltaic material and preparation method thereof

A technology of flame retardant polyamide and photovoltaic materials, applied in the polymer field, can solve the problems of less research on PA/LLDPE alloys, and achieve the effects of saving strategic resources, good electrical properties, and improving fluidity and weather resistance

Inactive Publication Date: 2017-04-26
GUANGDONG WAYLAM ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there are many researches on PA / PE alloys in China, but most of them are in the field of HDPE / PA alloys or thin films, while there are relatively few studies on PA / LLDPE alloys.

Method used

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  • High-CTI (Comparative Tracking Index) anti-flaming PA (Polyamide) for photovoltaic material and preparation method thereof
  • High-CTI (Comparative Tracking Index) anti-flaming PA (Polyamide) for photovoltaic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] (1) Treatment of raw materials: PA resin is baked at 110°C for 4 hours, and the moisture content is controlled to be less than 0.1%; PA resin, PE resin and all additives except glass fiber are placed in a high-mixer in proportion, Stir at high speed for 3 to 5 minutes to fully mix the components;

[0045] (2) Melt extrusion: Put the mixed materials into the twin-screw extruder, and at the same time melt and extrude, introduce the alkali-free glass fiber into the glass fiber port. During the melt extrusion, the screw temperature is: 230℃ in the first zone , Zone two 250℃, zone three 245℃, zone four 240℃, zone five 235℃, zone six 240℃, zone seven 245℃, zone eight 250℃, die head 260℃, screw speed is 340 rpm;

[0046] (3) Granulation and post-processing: the extruded materials are cooled, air-dried, pelletized, and magnetized to obtain finished products.

[0047] Table 1 shows the weight percentage of each component in Examples 1-6:

[0048]

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PUM

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Abstract

The invention discloses high-CTI (Comparative Tracking Index) anti-flaming PA (Polyamide) for a photovoltaic material and a preparation method thereof. The high-CTI anti-flaming PA for the photovoltaic material is characterized in that the high-CTI anti-flaming PA is prepared from the following raw materials in percentage by weight: 31.2 to 42.2 percent of PA resin, 5 to 10 percent of PE (Poly Ethylene) resin, 2 to 5 percent of toughening agent, 15 to 26 percent of composite flame retardant, 3 to 7 percent of composite synergetic flame retardant, 3 to 6 parts of CTI increasing agent, 1 to 3 percent of metal oxide, 0.2 to 0.4 percent of antioxidant, 1 percent of composite lubricating agent, 0.3 to 2 percent of weather-resisting agent and 15 to 25 percent of alkali-free glass fiber. The high-CTI anti-flaming PA for the photovoltaic material, provided by the invention, has the advantages of very high notch impact strength, very good flame retardance, lower production cost and good processing fluidity.

Description

[0001] 【Technical Field】 [0002] The invention belongs to the field of polymer technology, and specifically relates to a high-CTI flame-retardant polyamide for photovoltaic materials and a preparation method thereof. [0003] 【Background technique】 [0004] Nylon, namely polyamide (PA), is a type of polymer compound containing amide groups (-NHCO-) ​​in the main chain, and is the most commonly used engineering plastic. Because the main chain contains a large number of amide groups, its strong polarity leads to the "hydrogen bond" effect, which enhances the bond between nylon molecules. It has excellent mechanical properties in the macroscopic view, and also has abrasion resistance, oil resistance, corrosion resistance, and The advantages of lubricity, etc., are widely used in industry and life. [0005] With the advancement of science and technology, many new nylons have emerged on the market in the past 10 years, such as PA11, PA1010, PA12, PA1313, PA1414, PA9T, PA10T and semi-aroma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L23/08C08L23/06C08L25/06C08K13/04C08K7/14C08K3/22C08K5/5313C08K3/24
CPCC08L77/06C08L2201/02C08L2203/204C08L2205/035C08L2207/062C08L2207/066
Inventor 陈春银皮正亮葛嘉宝
Owner GUANGDONG WAYLAM ENG PLASTICS
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