Polyethylene of raised temperature resistance (PE-RT) master batch and preparation method thereof

A technology of high-temperature-resistant polyethylene and color masterbatch, which is applied in the field of high-temperature-resistant polyethylene color masterbatch and its preparation, can solve the problem of high price, and achieve the effects of smooth fluidity, durable hydrostatic strength, and excellent impact strength

Inactive Publication Date: 2011-05-25
ZHEJIANG QISELU MASTERBATCH
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Problems solved by technology

At present, domestic petrochemical enterprises have not yet produced the PE-RT material, so the color masterbatch used in

Method used

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  • Polyethylene of raised temperature resistance (PE-RT) master batch and preparation method thereof
  • Polyethylene of raised temperature resistance (PE-RT) master batch and preparation method thereof
  • Polyethylene of raised temperature resistance (PE-RT) master batch and preparation method thereof

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[0028]

[0029] 7 embodiments of the present invention described in the table below are respectively based on rutile type titanium dioxide (1), benzimidazolone yellow (2), anthraquinone orange (3), quinaldone red (4), phthalocyanine blue (5), phthalocyanine green (6), benzimidazolone brown (7) are colorant pigments, nanoscale layered montmorillonite is used as a reinforcing agent, polyethylene wax, meltable polytetrafluoroethylene and polysilicon Oxane silicone is used as dispersion and lubricant, dimethyl sulfoxide or dimethylamine, dimethyl formamide, etc. are used as cross-linking inhibitors, and mLLDPE, PE-RT or acrylic, styrene-grafted mLLDPE is used as carrier resin , but the examples should not be construed as limiting the scope of the present invention.

[0030] The preparation steps of above-mentioned embodiment are as follows:

[0031] spare:

[0032] 1. Pull out the twin-screw extruder to combine 5 sets of shearing blocks, two in each group in parallel, replace...

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Abstract

The invention relates to a polyethylene of raised temperature resistance (PE-RT) master batch and a preparation method thereof. At present, petroleum chemical enterprises in China do not produce polyethylene of raised temperature resistance (PE-RT) materials, so matched master batches need to be imported, but the price is high. The invention has the technical scheme that the PE-RT master batch comprises 20 to 30 percent of substrate rein, 3 to 5 percent of nanometer montmorillonite, 7 to 15 percent of dispersing agents, 0.3 to 1 percent of resistance cross linking agents, 0.5 to 2 percent of polysiloxane organic silicon surface active agents, 1 to 3 percent of antioxidants, 1 to 3 percent of light stabilizers and 20 to 70 percents of pigment, wherein the resistance cross linking agents are dimethyl sulfoxide, dimethylamine or dimethylformamide, and the dispersing agents are compounds of low molecular polyethlene wax or ethylene-vinyl acetate wax and fluoropolymers. After the PE-RT is proportionally mixed, PE-RT pipelines in various colors can be manufactured, and the improvement of the mechanical property of the PE-RT pipelines instead of reduction is ensured.

Description

technical field [0001] The invention relates to a color masterbatch for coloring engineering plastics, in particular to a high-temperature-resistant polyethylene color masterbatch and a preparation method thereof. Background technique [0002] Heat-resistant polyethylene (PE-RT) is a new type of material, which is the first choice for replacing cross-linked polyethylene (PE-X), PP aluminum-plastic composite pipes and other chemical inlet and drain pipes. In addition to the light weight, corrosion resistance, and acid and alkali resistance of polyethylene materials, PE-RT has the outstanding advantages of long-term high temperature resistance of 110°C and good processing fluidity. At present, domestic petrochemical enterprises have not yet produced the PE-RT material, so the color masterbatch used in it also needs to be imported, but the price is high, and there is no relevant report on PE-RT color masterbatch in China. Contents of the invention [0003] The purpose of the...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/20C08L51/06C08L83/04C08K13/02C08K3/34
Inventor 王仲文王执中汤志龙傅琪斌
Owner ZHEJIANG QISELU MASTERBATCH
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