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High-softening-point wax and preparation method thereof

A technology with high softening point and softening point, which is applied in chemical instruments and methods, dyeing high-molecular organic compound treatment, dyeing low-molecular organic compound treatment, etc., can solve the problem that data such as softening point and hardness cannot be effectively guaranteed, and the dispersion effect And the problems of lower coloring performance, wide molecular weight distribution of polyethylene wax, etc., to achieve good compatibility and fluidity, improve coloring power, and good wettability

Inactive Publication Date: 2018-11-09
江苏天时新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing polyethylene wax preparation method is generally made of high molecular weight polyethylene through a series of process steps, the manufacturing cost is high, and the polyethylene wax produced has a wide molecular weight distribution, resulting in reduced dispersion effect and coloring performance
Moreover, data such as its softening point and hardness cannot be effectively guaranteed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A high softening point wax, comprising: polyethylene oligomer, polypropylene wax and industrial hydrogenated oil; wherein, the mass ratio of each component is: polyethylene oligomer 50%, polypropylene wax 30%, industrial hydrogenated oil 20% %; The softening point of polyethylene oligomers is greater than 110 ° C, and its average molecular weight is 2000-5000.

[0019] The composition of industrial hydrogenated oil is: the main component is saturated fatty acid glyceride (fatty acid is stearic acid), and the appearance is white or slightly yellow waxy solid at room temperature.

[0020] A method for measuring the contact surface of a rotary shaft lip seal, comprising the steps of:

[0021] 1) Break the polyethylene oligomer and put it into the reactor;

[0022] 2) Heat the polyethylene oligomer until it is completely melted into a liquid state. The heating temperature is set to 230°C. During the heating reaction, a vacuum pump is used to draw a negative pressure on the...

Embodiment 2

[0026] A high softening point wax, comprising: polyethylene oligomer, polypropylene wax and industrial hydrogenated oil; wherein, the mass ratio of each component is: polyethylene oligomer 40%, polypropylene wax 20%, industrial hydrogenated oil 40% %; The softening point of polyethylene oligomers is greater than 110 ° C, and its average molecular weight is 2000-5000.

[0027] The composition of industrial hydrogenated oil is: the main component is saturated fatty acid glyceride (fatty acid is stearic acid), and the appearance is white or slightly yellow waxy solid at room temperature.

[0028] A method for measuring the contact surface of a rotary shaft lip seal, comprising the steps of:

[0029] 1) Break the polyethylene oligomer and put it into the reactor;

[0030] 2) Heat the polyethylene oligomer until it is completely melted into a liquid state. The heating temperature is set to 200 ° C. During the heating reaction, a vacuum pump is used to draw a negative pressure on t...

Embodiment 3

[0034] A high softening point wax, comprising: polyethylene oligomer, polypropylene wax and industrial hydrogenated oil; wherein, the mass ratio of each component is: polyethylene oligomer 45%, polypropylene wax 25%, industrial hydrogenated oil 30% %; The softening point of polyethylene oligomers is greater than 110 ° C, and its average molecular weight is 2000-5000.

[0035] The composition of industrial hydrogenated oil is: the main component is saturated fatty acid glyceride (fatty acid is stearic acid), and the appearance is white or slightly yellow waxy solid at room temperature.

[0036] A method for measuring the contact surface of a rotary shaft lip seal, comprising the steps of:

[0037] 1) Break the polyethylene oligomer and put it into the reactor;

[0038] 2) Heat the polyethylene oligomer until it is completely melted into a liquid state. The heating temperature is set to 210°C. During the heating reaction, a vacuum pump is used to draw a negative pressure on the...

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Abstract

The invention relates to a high-softening-point wax and a preparation method thereof, belonging to the technical field of chemical engineering. The high-softening-point wax comprises a polyethylene oligomer, a polypropylene wax and industrial hydrogenated oil, wherein the polyethylene oligomer has a softening point of more than 110 DEG C and an average molecular weight of 2,000 to 5,000. The high-softening-point wax of the invention is mainly used as a lubricating and dispersing agent in the production process of plastic products, has the characteristic of concentrated effective molecular weight and helps to improve dispersion effect and coloring power; the softening point of the wax is up to 120 DEG C; and the wax has excellent heat resistance and thermal stability, presents good compatibility and fluidity in the production of masterbatch, is enhanced in lubrication performance, improves the production efficiency of products, allows products to be easier to demold and enhances the surface smoothness of products.

Description

technical field [0001] The invention relates to a high softening point wax and a preparation method thereof, belonging to the technical field of chemical industry. Background technique [0002] Polyethylene wax is widely used as a lubricating and dispersing agent in the plastic production process. The existing polyethylene wax preparation method generally adopts high molecular weight polyethylene to produce through a series of process steps, the manufacturing cost is high, and the molecular weight distribution of the produced polyethylene wax is relatively wide, resulting in the reduction of dispersion effect and coloring performance. Moreover, data such as its softening point and hardness cannot be effectively guaranteed. Contents of the invention [0003] In view of the above problems, the present invention proposes a high softening point wax with low cost, high softening point, good viscosity performance, excellent external lubrication and strong internal lubrication, ...

Claims

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Application Information

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IPC IPC(8): C10M161/00C09C1/02C09C3/08C09C3/10C09C1/40C09C1/00C10N30/04C10N30/06
CPCC09C1/00C09C1/021C09C1/40C09C3/006C09C3/08C09C3/10C10M161/00C10M2205/022C10M2205/14C10M2207/283C10N2030/04C10N2030/06
Inventor 时伯建
Owner 江苏天时新材料科技有限公司
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