Novel radiation crosslinked polyethylene thin foam and preparation method thereof

A radiation cross-linking, polyethylene technology, applied in the field of foam plastic materials, can solve the problems of rigidity and toughness that cannot meet the performance requirements of the photovoltaic industry, affecting the strength and durability of photovoltaic modules, and easy failure of IXPE materials.

Inactive Publication Date: 2017-08-25
湖州长园特发科技有限公司
View PDF10 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Traditional low-density polyethylene is used as the main material to produce radiation cross-linked polyethylene foam plastics. For example, the Chinese invention patent with application number 200710075475.7 discloses a kind of IXPE electronic radiation cross-linked polyethylene conductive foam cotton and its preparation method. Its rigidity, toughness None of them can meet the performance requirements of the photovoltaic industry, especially under the overload conditions of strong wind resistance, heavy rain resistance, and ice cones, ordinary IXPE materials are prone to failure. Under high temperature and high humidity conditions, the performance of ordinary IXPE materials is seriously degraded, which seriously affects photovoltaic modules. strength and durability

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel radiation crosslinked polyethylene thin foam and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 8

[0072] Embodiment 8: the preparation method of novel radiation crosslinked polyethylene thin foam in embodiment 1, comprises the steps:

[0073] ①Pelleting: Firstly, the main material, reinforcing agent and weather-resistant additive are granulated by a twin-screw granulator to make a mixed masterbatch; then the mixed masterbatch and foaming agent are banburyed, and then single-screw granulated Machine granulation to make foam masterbatch;

[0074] The foaming masterbatch and antioxidant are blended and then granulated by a single-screw extruder to make an antioxidant masterbatch. The mixed masterbatch and foaming agent are mixed and then made by a single-screw extruder Granules, made of sensitized masterbatch.

[0075] ②Extrusion: Put the masterbatch prepared in step ① into the extruder to extrude to form a masterbatch, and set a mold temperature controller at the last extrusion roller of the extruder;

[0076] ③ Irradiation: irradiating the master sheet extruded in step ②;...

Embodiment 9

[0080] Embodiment 9: the preparation method of novel radiation crosslinked polyethylene thin foam in embodiment 2~5, comprises the following steps:

[0081] ①Pelleting: Firstly, the main material, reinforcing agent and weather-resistant additive are granulated by a twin-screw granulator to make a mixed masterbatch; then the mixed masterbatch and foaming agent are banburyed, and then single-screw granulated Machine granulation to make foam masterbatch;

[0082] The mixed masterbatch and foaming aid are mixed and then granulated by a single-screw extruder to make a sensitized masterbatch.

[0083] ②Extrusion: Put the masterbatch prepared in step ① into the extruder to extrude to form a masterbatch, and set a mold temperature controller at the last extrusion roller of the extruder;

[0084] ③ Irradiation: irradiating the master sheet extruded in step ②;

[0085] ④Foaming: Preheat the mother sheet after step ③ irradiation, and then enter the foaming section of the foaming furnac...

Embodiment 10

[0088] Embodiment 10: the preparation method of novel radiation crosslinked polyethylene thin foam in embodiment 6 and embodiment 7, comprises the steps:

[0089] ①Pelleting: Firstly, the main material, reinforcing agent and weather-resistant additive are granulated by a twin-screw granulator to make a mixed masterbatch; then the mixed masterbatch and foaming agent are banburyed, and then single-screw granulated Machine granulation to make foam masterbatch;

[0090] The foam masterbatch and antioxidant are blended and then granulated by a single-screw extruder to make antioxidant masterbatch.

[0091] ②Extrusion: put the masterbatch prepared in step ① into the extruder to extrude to form a master piece, set a mold temperature controller at the last extrusion roller of the extruder, and use a water tank to to cool down;

[0092] ③ Irradiation: irradiating the master sheet extruded in step ②;

[0093] ④Foaming: Preheat the mother sheet after step ③ irradiation, and then enter...

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

The invention discloses novel radiation crosslinked polyethylene thin foam and a preparation method thereof, and relates to the technical field of foam plastic material. The novel radiation crosslinked polyethylene thin foam designed by the invention is prepared from the following raw materials in percentage by mass: 42-87.9% of a main material and the balance of auxiliary materials; the main material adopts LDPE; the auxiliary materials comprise a POE constituent strengthening auxiliary, an EPDM constituent weather-proof additive and an azobisformamide constituent foaming agent; and the strengthening auxiliary, the weather-proof additive and the foaming agent respectively account for 5-30%, 1-10% and 5-10% of the radiation crosslinked polyethylene thin foam by mass. The material has relatively ideal intrinsic mechanical strength as well as greatly improved aging resistance and weather resistance.

Description

technical field [0001] The invention relates to the technical field of foamed plastic materials, in particular to a novel radiation-crosslinked polyethylene thin foam and a preparation method thereof. Background technique [0002] In recent years, with the rapid development of the photovoltaic industry, traditional photovoltaic module encapsulation silicone materials are affected by their own performance limitations, and encounter technical bottlenecks in conversion efficiency, and need to be cured and cross-linked during sealing, which is troublesome to clean, Disadvantages such as large loss. In order to break through this technical bottleneck, people invented photovoltaic module frame packaging tape to replace the traditional silicone sealing method to form a new type of module packaging product. The sealing tape has the characteristics of no curing, safety, cleaning, easy application, and less loss. The application of photovoltaic industry is becoming more and more exte...

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): C08L23/06C08L23/08C08L23/16C08J9/10B29D7/01
CPCB29D7/01C08J9/103C08J2203/04C08J2323/06C08J2423/08C08L23/06C08L2203/14C08L2205/03C08L2207/066C08L2312/06C08L23/0815C08L23/16
Inventor 范宇王明蕉汪定龙孙林王健
Owner 湖州长园特发科技有限公司
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