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Functional resin and polyolefin material, and preparation methods and application thereof

A technology of functional resin and polyolefin, which is applied in the field of functional resin and its application in polyolefin materials, can solve the problems affecting the service life of photovoltaic modules affecting the reliability of packaging, affecting the product quality of polyolefin materials, and poor compatibility of additives. Achieve excellent anti-migration properties, slow down the possibility of photochemical reactions, and good compatibility

Inactive Publication Date: 2018-09-04
乐凯胶片股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since polyolefin materials are non-polar polymers, they have poor compatibility with small molecule additives, and additives are easy to migrate, especially the migration of light stabilizers, which will affect the quality of polyolefin materials.
When polyolefin materials are used in photovoltaic packaging, the migration of light stabilizers to the surface of the film will cause problems in product preservation and reduce the bonding fastness after packaging. At the same time, the packaging will be further deteriorated during the use of photovoltaic modules, affecting the packaging The reliability and service life of photovoltaic modules

Method used

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  • Functional resin and polyolefin material, and preparation methods and application thereof

Examples

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Effect test

preparation example Construction

[0035] The preparation of above-mentioned functional resin is carried out in twin-screw extruder, and its steps are:

[0036] After mixing polyolefin resin, crosslinking agent and light stabilizer containing reactive groups uniformly in a mixer in proportion, they are extruded and granulated in a twin-screw extruder to obtain a functional resin. The twin-screw extruder The extrusion temperature of the machine is 160°C-240°C. If the extrusion temperature is lower than 160°C, the reaction rate will be too slow, the degree of reaction will be too low, and there may be more light stabilizer residues; if the extrusion temperature is higher than 240°C, the reaction rate will be too fast, and the resin will be cross-linked and burnt. There is a risk of burning.

[0037] In the components of the polyolefin material, 1-10 parts by mass of functional resin is added to 100 parts by mass of polyolefin resin, preferably 3-5 parts by mass. When the added amount of the functional resin is ...

Embodiment 1

[0045]0.1 parts by mass of di-tert-butyl peroxycumene (BIBP) as an organic peroxide crosslinking agent and 1 part by mass of 4-acryloyloxy-2,2,6,6-tetramethyl Piperidinol ester (ATMP) was added into 100 parts by mass of ethylene-octene copolymer (Dow Chemical ENGAGE 8407) as a light stabilizer and mixed evenly, and the mixture was added to a twin-screw extruder for grafting, and the temperature was controlled at At 240°C, the extruded product was pelletized and dried under water to obtain functional resin A.

[0046] 100 parts by mass of ethylene-octene copolymer (Dow Chemical ENGAGE 8137), 0.7 parts by mass of peroxy-3,5,5-trimethylhexanoic acid tert-butyl ester (TBPIN) as organic peroxide crosslinking agent and 0.7 parts by mass of triallyl isocyanurate (TAIC) are mixed uniformly as a cross-linking accelerator, and then 0.1 parts by mass of tris (2,4-di-tert-butylphenyl) phosphite (gas IRGAFOS-168) as an antioxidant, 0.2 parts by mass of vinyltrimethoxysilane (Dow Corning z...

Embodiment 2

[0048] 1 part by mass of di-tert-butylperoxycumene (BIBP) as an organic peroxide crosslinking agent and 10 parts by mass of 4-methacryloyloxy-2,2,6,6-tetra Methylpiperidinol ester (MTMP) was added as a light stabilizer to 100 parts by mass of ethylene-octene copolymer (Dow Chemical ENGAGE 8407) and mixed evenly, and the mixture was added to a twin-screw extruder for grafting, and the temperature The temperature is controlled at 195°C, and the extruded product is pelletized and dried under water to obtain functional resin B.

[0049] 100 parts by mass of ethylene-octene copolymer (Dow Chemical ENGAGE 8137), 0.7 parts by mass of peroxy-3,5,5-trimethylhexanoic acid tert-butyl ester (TBPIN) as organic peroxide crosslinking agent and 0.7 parts by mass of triallyl isocyanurate (TAIC) are mixed uniformly as a cross-linking accelerator, and then 0.1 parts by mass of tris (2,4-di-tert-butylphenyl) phosphite (gas IRGAFOS-168) as an antioxidant, 0.2 parts by mass of vinyltrimethoxysilan...

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Abstract

The invention discloses a functional resin and a polyolefin material, and preparation methods and application thereof. The functional resin comprises, by mass, 100 parts of polyolefin resin, 0.01 to 1part of a cross-linking agent, and 0.01 to 1 part of a reactive-group-containing light stabilizer. In a formula for the functional resin of the invention, the organic peroxide cross-linking agent andthe reactive-group-containing light stabilizer are used; and in the process of operation, the reactive-group-containing light stabilizer is grafted onto the polyolefin resin under the initiation of the organic peroxide cross-linking agent. The functional resin provided by the invention has excellent anti-migration characteristics and does not migrate to the surface of a polymer material when added into the polymer material.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a functional resin and its application in polyolefin materials. Background technique [0002] Ultraviolet rays in sunlight are the main cause of photoaging of polymer materials. After most polymer materials absorb ultraviolet rays, they will cause oxidation and degradation, destroy the chemical bonds in the molecule, make them break and crosslink, and lead to changes in the physical and mechanical properties of the material, such as discoloration, surface cracking, pulverization, and mechanical properties. , Deterioration of optical and electrical properties. Therefore, it is necessary to add a light stabilizer to inhibit the photodegradation process of the material and prolong its service life. [0003] With the vigorous development of the photovoltaic industry, new packaging materials have begun to occupy a place in the photovoltaic market, and polyolefin material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C08F226/06C08L23/08C08L51/06C08K5/526C08K5/5425C08J5/18
CPCC08F255/02C08J5/18C08L23/0815C08F226/06C08L51/06C08K5/526C08K5/5425
Inventor 徐晓龙范云峰孟丹白玉清李华锋柳青
Owner 乐凯胶片股份有限公司
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