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Preparation method of glycidyl methacrylate melt-grafted polyolefin material

A technology of glycidyl ester and methacrylic acid, which is applied in the field of preparation of glycidyl methacrylate melt-grafted polyolefin materials, can solve problems such as inability to effectively quench segment free radicals, and achieves low cross-linking degree and molecular weight. High, inhibiting the effect of degradation

Inactive Publication Date: 2017-03-15
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the abundant electron cloud in the styrene conjugated system, PP 3 ~St. and PE 2 ~St has high activity, the complex cannot effectively quench the two free radicals connected to styrene, so these two free radicals can effectively carry out the grafting reaction

Method used

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  • Preparation method of glycidyl methacrylate melt-grafted polyolefin material
  • Preparation method of glycidyl methacrylate melt-grafted polyolefin material
  • Preparation method of glycidyl methacrylate melt-grafted polyolefin material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: PP / DCP / GMA / St / GO

[0034] PP / DCP / GMA / GO were mixed according to the weight ratio of 100 / 0.5 / 5 / 0.1 (the polypropylene weighed 46g) and stirred evenly by hand, added to the internal mixer, and then added 2.5phr of liquid St, 190°C Mix at a speed of 50 rpm for 5 min.

[0035] The test results of the samples are shown in Table 1.

Embodiment 2

[0060] Embodiment 2: PP / DCP / GMA / St / GO (changing DCP content is 1.0phr)

[0061] PP / DCP / GMA was mixed according to the weight ratio GO / 100 / 1.0 / 5 / 0.1 (including polypropylene weighed 46g) and stirred evenly by hand, added to the internal mixer, and then added 2.5phr of liquid St, 190°C Mix at a speed of 50 rpm for 5 min.

[0062] The test results of the samples are shown in Table 1.

Embodiment 3

[0066] Example 3: PP / DCP / GMA / St / GO, 180°C

[0067] PP / DCP / GMA / GO are mixed according to the weight ratio of 100 / 0.5 / 5 / 0.1 (the polypropylene weighs 46g) and stirred evenly by hand, then added to the internal mixer, and then added 2.5phr of liquid St, 180°C Mix at a speed of 50 rpm for 5 min.

[0068] The test results of the samples are shown in Table 1.

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Abstract

The invention discloses a preparation method of a glycidyl methacrylate melt-grafted polyolefin material. The preparation method comprises the following steps: directly adding glycidyl methacrylate and graphene oxide onto polyolefin pellets or powder, uniformly mixing at normal temperature, and adding the physical mixture into reaction equipment; and uniformly mixing an initiator and a styrene liquid, adding the mixture into the above reaction equipment, and melt-blending at a certain temperature. The prepared glycidyl methacrylate grafted polyolefin has high grafting rate and high molecular weight or high grafting rate and low crosslinking degree.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a preparation method of glycidyl methacrylate melt-grafted polyolefin materials with high grafting ratio, high molecular weight or high grafting ratio and low crosslinking degree. Background technique [0002] Polyolefin (PO, polyolefin) is a general-purpose plastic with excellent comprehensive properties, which is widely used in automobiles, electrical appliances, packaging and other fields. However, since polyolefin is a non-polar polymer, it is incompatible with polar polymers (nylon, polylactic acid, etc.) and polar fillers (glass fiber, carbon fiber, etc.). In order to increase the polarity of polyolefins, peroxy initiators and ethylenically unsaturated polar monomers are usually added. [0003] In industrial production, in order to obtain higher grafting rate, usually will add high-content dicumyl peroxide (DCP) and glycidyl methacrylate (GMA) in polyole...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F255/02C08F255/04C08F287/00C08F220/32C08F212/08C08F2/44C08K7/00C08K3/04
CPCC08F2/44C08F255/02C08F255/04C08F287/00C08K3/04C08K7/00C08K2201/006C08F220/325
Inventor 李勇进梁秋实
Owner HANGZHOU NORMAL UNIVERSITY
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