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Method for filling high molecular materials by using inorganic fillings

A technology of polymer materials and inorganic fillers, applied in the field of inorganic fillers to fill polymer materials, can solve problems such as poor toughness, affecting the mechanical properties of polymer materials, and poor interface bonding

Inactive Publication Date: 2006-11-29
SHANDONG TIANYE PLASTICIZATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional method is to use a coupling agent to treat the inorganic filler and then blend it with the polymer material, but this treatment method is only combined with the polymer material at a few points on the surface of the inorganic filler, that is, the interface between them is not well bonded. , affecting the mechanical properties of polymer materials, such as low strength, poor toughness, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] 100 parts by weight of aluminum hydroxide or magnesium hydroxide (fineness greater than 325 meshes) and 5 parts by weight of butyl acrylate and 0.1 parts by weight of ammonium persulfate are added to the reactor, then add twice the weight of water, and heat to React at 50°C while stirring. After the reaction is complete, dry to remove water and pulverize to obtain the coating material.

[0013] 80% (percentage by weight) of the above-mentioned cladding material, 18% polyethylene and 2% polyethylene wax are molded in a co-rotating building block type twin-screw extruder with a diameter of 75 mm and a length-to-diameter ratio of 36:1. For chemical granulation, the temperature of each section of the extruder is between 120 and 150 °C. After granulation, a pollution-free flame-retardant masterbatch is obtained.

Embodiment 2

[0015] Add 100 parts by weight of conductive carbon black, 4 parts by weight of liquid paraffin, 10 parts by weight of ethyl acrylate, and 0.1 parts by weight of ammonium persulfate into the reactor, then add five times the weight of water, and heat to 50 ° C while stirring After the reaction is completed, dry to remove water, and pulverize to obtain the material coated with conductive carbon black. This conductive carbon black is easily dispersed in plastics and has little impact on the performance of the material.

[0016] 50% (by weight) of the above coating material plus 3% polyethylene wax and 47% polyethylene are plasticized and granulated by the twin-screw extruder of the embodiment 1 to become an antistatic masterbatch.

Embodiment 3

[0022] 100 parts by weight of magnesium hydroxide, 2 parts by weight of styrene, and 0.5 parts by weight of potassium persulfate were used in accordance with the method of Example 1 to obtain a coating material coated with magnesium hydroxide.

[0023] 80% (percentage by weight) of the above-mentioned cladding material and 16% ABS (SBS or polystyrene), 4% polyethylene wax are 75 millimeters in diameter, and aspect ratio is 36: 1 same direction building block type double It is plasticized and granulated in the screw extruder, and the flame retardant masterbatch is obtained after granulation.

[0024] Add the masterbatch obtained in this embodiment together with decabromodiphenyl ether and antimony trioxide to produce products (such as pipes) in ABS, which improves the impact strength and can reach 13KJ / m 2 , while the impact strength of the product produced by the prior art method is only 7KJ / m 2 .

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Abstract

The invention discloses a method for filling high molecular materials by using inorganic fillings, which comprises mixing 100 weight parts of mineral filler, 2-15 weight parts of polymerisable monomer, 0.1-1 weight part of initiating agent, heating for polymerization reaction, disintegrating to obtain clad material, melting and plasticizing the clad material and macromolecular resin. The invention solves the boundary problem between the inorganic material and the organic material, and the mechanical property is not influenced.

Description

technical field [0001] The invention relates to a method in which the inorganic filler is firstly coated with an organic monomer when the polymer material is filled with the inorganic filler. Background technique [0002] Polymer materials include polyethylene, polypropylene, ABS, polyvinyl chloride, polystyrene and other polymers with relatively large molecular weights that are polymerized from monomers. Filling polymer materials with inorganic materials (fillers) can give polymer materials some special properties, such as flame retardancy, antistatic properties, rigidity, and can be used to make cable outer sheaths, decoration materials, packaging materials, pipes, and household appliances shell, etc., and can reduce costs. The traditional method is to use a coupling agent to treat the inorganic filler and then blend it with the polymer material, but this treatment method is only combined with the polymer material at a few points on the surfa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F2/44C08F20/10
Inventor 付宇刚付宇经
Owner SHANDONG TIANYE PLASTICIZATION
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