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Compatible adhesive resin for PE and PA and preparation method of compatible adhesive resin

A technology for bonding resin and polyethylene, applied in the field of bonding resin, can solve the problems of poor compatibilization effect, increase the user's production cost, and reduce the physical properties of the compatibilizer, and achieve the effect of good bonding strength and tensile performance.

Pending Publication Date: 2021-05-28
SHANGHAI BANGZHONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the production and processing of PE / PA compatibilizers, the mixing and molding conditions need to be strictly controlled, and side reactions are prone to occur, causing the physical properties of the compatibilizer to decrease, and the effect of compatibilizing PE / PA cannot be achieved, or The compatibilizing effect is poor, and a larger proportion of compatibilizer needs to be added, which will greatly increase the user's production cost

Method used

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  • Compatible adhesive resin for PE and PA and preparation method of compatible adhesive resin
  • Compatible adhesive resin for PE and PA and preparation method of compatible adhesive resin
  • Compatible adhesive resin for PE and PA and preparation method of compatible adhesive resin

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preparation example Construction

[0030] A kind of preparation method as above-mentioned compatible adhesive resin, comprises the steps:

[0031] Step 1, weighing polyethylene, ethylene copolymer, polar monomer, initiator and coupling agent, adding the above components into a high-speed mixer, and mixing uniformly to obtain materials;

[0032] Step 2: Put the material into a twin-screw extruder to extrude a strip, cool the strip through a circulating water tank to room temperature, dry it with a blower, and then enter the pelletizer for granulation, and the preparation is completed.

[0033] In a specific embodiment of the present invention, the temperature of each temperature zone of the twin-screw extruder is 160-190°C.

Embodiment 1

[0036] This embodiment provides a compatible adhesive resin for PE and PA, including the following components in parts by mass:

[0037]

[0038] Among them, polyethylene is high-density polyethylene with a density of 0.952g / cm 3 , the melt index is 8.0g / 10min (190°C, under 2.16kg pressure), and the tensile strength is 26MPa;

[0039] The ethylene copolymer is an ethylene-vinyl acetate copolymer, wherein the monomer content of vinyl acetate is 33%, and the melt index is 12g / 10min;

[0040] The polar monomer is maleic anhydride; the initiator is benzoyl peroxide; the coupling agent is a silane coupling agent.

[0041] The preparation method of compatible adhesive resin for above-mentioned PE and PA comprises the following steps:

[0042] Step 1, weighing polyethylene, ethylene copolymer, polar monomer, initiator and coupling agent according to the above-mentioned parts by mass, adding the above components into a high-speed mixer, and mixing uniformly to obtain materials; ...

Embodiment 2

[0045] This embodiment provides a compatible adhesive resin for PE and PA, including the following components in parts by mass:

[0046]

[0047]

[0048] Among them, polyethylene is high-density polyethylene and linear low-density polyethylene, and the density of high-density polyethylene is 0.952g / cm 3 , the melt index is 8.0g / 10min (190°C, under 2.16kg pressure), the tensile strength is 26MPa; the density of linear low density polyethylene is 0.940g / cm 3 , the melt index is 4.0g / 10min (190°C, under 2.16kg pressure), and the tensile strength is 20MPa;

[0049] The ethylene copolymer is an ethylene-vinyl acetate copolymer, wherein the monomer content of vinyl acetate is 18%, and the melt index is 3g / 10min;

[0050] The polar monomer is acrylic acid; the initiator is cumene hydroperoxide; the coupling agent is a compound of silane coupling agent and ethylenediamine tetraacetate, and the ratio of the two is 1:1.

[0051] The preparation method of compatible adhesive res...

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Abstract

The invention provides compatible adhesive resin for PE and PA and a preparation method of the compatible adhesive resin. The adhesive resin comprises the following components in parts by weight: 40-60 parts of polyethylene, 20-50 parts of ethylene copolymer, 0.1-5 parts of polar monomer, 0.1-2 parts of initiator and 0.1-2 parts of coupling adhesive. According to the compatible bonding resin for PE and PA provided by the invention, the polyethylene, the ethylene copolymer, the polar monomer, the initiator and the coupling bonding agent are mixed in parts by mass according to precise compatibility and are processed through an extruder, so that the prepared compatible bonding resin is relatively good in peel strength, tensile strength and tensile property, the problem of compatibility of PE and PA is well solved, the compatibility of nylon and PE is improved, and the tensile strength and impact strength of nylon are improved.

Description

technical field [0001] The invention relates to the technical field of adhesive resins, in particular to a compatible adhesive resin for PE and PA and a preparation method thereof. Background technique [0002] In the current hottest field of plastic recycling, compatibilizers have played their strong innovative advantages, because they can make incompatible polyolefin materials mixed in the melt, abandoning the sorting process. At the same time, improve the strength, impact resistance (toughness), filler dispersion and other performances of recycled plastic products or recycled particles. [0003] PA is commonly known as nylon. It has been produced for decades since its discovery. It is mainly used in injection molding products to replace some metals to meet the needs of product lightweight and cost reduction. However, nylon has low low-temperature and dry impact strength. This limits its further popularization and use. Therefore, compatibilizers are often used in the prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C08F220/06C08F222/06C08L23/06C08L77/00C08L51/06
CPCC08F255/02C08L23/06C08L77/00C08L2205/08C08L2205/03
Inventor 杨少辉毕宏海储江顺李薇薇李楠孙晓光黄健
Owner SHANGHAI BANGZHONG NEW MATERIAL
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