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A modified polyamide resin composition and backplane substrate film prepared by the same

A technology of polyamide resin and composition, applied in the field of modified polyamide resin composition and preparation thereof, can solve the problems of inability to meet the barrier property requirements of solar cell modules for back sheets, poor moisture and heat aging resistance, etc. Effects of damp heat aging performance, low water absorption, and excellent electrical insulation

Active Publication Date: 2015-03-04
SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, polyamide materials have high hygroscopicity due to the structural characteristics of amide groups in the molecular chain ends, so it is difficult for unmodified polyamide resins to overcome the defects of high water absorption and poor moisture and heat aging resistance, and cannot meet the requirements of solar energy. The barrier requirements of battery components on the backsheet limit the application of polyamide resin as a backsheet material

Method used

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  • A modified polyamide resin composition and backplane substrate film prepared by the same
  • A modified polyamide resin composition and backplane substrate film prepared by the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A modified polyamide resin composition, its preparation method is as follows:

[0039] (1) Preparation of grafted polyethylene PE-MA

[0040] 100 parts (parts by mass) of LLDPE7042 (Beijing Yanshan Petrochemical Company), 1 part of maleic anhydride (chemical reagent, analytical grade), and 0.05 parts of DCP initiator (Tianjin Aksu Company) were measured and added to the mixer for mixing and homogenization. After homogenizing for two hours, put it into a twin-screw extruder for melt extrusion and granulation; cool and granulate to obtain granular grafted polyethylene PE-MA, and its melt flow rate at 190°C / 2.16kg is 0.5g / 10min. The diameter of the screw is 75mm, the aspect ratio is 33, the temperature of the screw is controlled at 160-220°C, the rotational speed of the screw is controlled at 100 rpm, and the residence time of the material in the screw is 2-4 minutes.

[0041] The LLDPE7042 (Beijing Yanshan Petrochemical Company) is a linear low-density polyethylene with ...

Embodiment 2

[0045] A modified polyamide resin composition, its preparation method is as follows:

[0046] (1) Preparation of grafted polyethylene PE-MA: see Example 1

[0047] (2) Add 50 parts of polycaprolactam (PA6) resin 1030 into the dryer and dry at 80°C for 4 hours; then add 50 parts of polypropylene K8303, 10 parts of grafted polyethylene PE-MA, and 20 parts of rutile titanium dioxide R960, Mix the materials evenly, put them into a twin-screw extruder for melt extrusion and granulation (the twin-screw adopts exhaust screw, the screw diameter is 75 mm, the aspect ratio is 33, the screw temperature is controlled at 180-240 °C, and the screw speed is controlled at 100 rpm, the residence time of the material in the screw is 2-4 minutes); the material is cooled, granulated and dried to become the finished product S2, and the material performance test is shown in Table 1.

Embodiment 3

[0049] A modified polyamide resin composition, its preparation method is as follows:

[0050] (1) Preparation of grafted polyethylene PE-MA: see Example 1

[0051] (2) Add 5 parts of polyhexamethylene dodecamide (PA612) (Shandong Dongchen Engineering Plastics Co., Ltd.) into the dryer and dry at 80°C for 4 hours; then add 75 parts of polypropylene K8303, 15 parts of grafted Polyethylene PE-MA, 20 parts of rutile titanium dioxide R960, uniformly mix the materials, put them into a twin-screw extruder for melt extrusion granulation (the twin-screw adopts exhaust screw, the screw diameter is 75 mm, and the aspect ratio is 33 , the screw temperature is controlled at 180-240°C, the screw speed is controlled at 100 rpm, and the residence time of the material in the screw is 2-4 minutes); the material is cooled, granulated and dried to become the finished product S3, and the material performance test is shown in the table 1.

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Abstract

The present invention discloses a modified polyamide resin composition and backplane substrate film prepared by the same. The modified polyamide resin composition comprises the following components, by mass: 5-75 parts of polyamide resin, 5-75 parts of polypropylene resin, 5-50 parts of grafted polyethylene, and 0-100 parts of a filler. The grafted polyethylene is prepared from the following components via graft reaction: 100 parts of polyethylene resin, 0.5-2.0 parts of a grafting agent, and 0.03-0.2 parts of an initiator. According to the present invention, a new resin composition used for backplane substrates of solar energy assemblies is developed; the final product obtained has anti-aging, particularly anti-damp and heat aging performance, and also has low saturation water absorption, low water vapor transmission and excellent electrical insulating properties, and backplane substrate film prepared therefrom further has high adhesion and mechanical strength, and can be used for manufacturing backplane of solar energy assemblies.

Description

technical field [0001] The invention relates to a resin composition used for a solar backboard substrate, in particular to a modified polyamide resin composition and a preparation method thereof, which can be used for preparing a solar battery backplane substrate film. Background technique [0002] At present, the new energy available to mankind mainly includes solar energy, geothermal energy, wind energy, ocean energy and nuclear energy. , Solar energy has become the easiest, most reliable and most economical new energy source to use. The solar photovoltaic system is composed of solar battery packs, solar controllers, batteries, etc., among which the solar backsheet is the structural packaging material of solar battery components, which plays a great role in prolonging the service life of solar batteries, and is indispensable for solar battery components. The missing component, the material used to prepare the backsheet should have reliable insulation, water resistance, me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/00C08L23/12C08L23/14C08L51/06C08K7/14C08K7/06C08K3/34C08K3/22C08F255/02H01L31/049
CPCY02E10/50
Inventor 罗吉江符书臻
Owner SUZHOU DUCHAMPS ADVANCED MATERIALS CO LTD
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