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Plastic filling agent and preparation method thereof

A technology for plastic fillers and particles, applied in the field of plastic fillers and their preparation, can solve the problems of harsh technical conditions, long process, failure of coupling agent synthesis, etc., to overcome van der Waals force, short process and modification effect. Good results

Inactive Publication Date: 2013-05-22
ZIGONG CITY CHUANYOU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This process has the following disadvantages: on the one hand, this process is long, and it is easy to reunite the calcium carbonate particles in the process of soaking calcium carbonate with a coupling agent solution and then drying it, and it is difficult to ensure that the coupling agent can be evenly adsorbed to the carbonate Calcium particle surface, therefore, the effect of modifying plastics with secondary products is not guaranteed
The synthesis of trimethoxysilane or triethoxysilane from silicon and alcohol is a key link in the synthesis of silane coupling agents. In the current trimethylform / ethanol synthesis process, an expensive low-boiling solvent environment is required and the cost is high; and Adding too much or too little amount of A / ethanol will lead to the failure of coupling agent synthesis, and insufficient equipment control precision will also cause synthesis failure. The technical conditions are very harsh

Method used

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  • Plastic filling agent and preparation method thereof
  • Plastic filling agent and preparation method thereof

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Effect test

Embodiment 1

[0031] The plastic filler of the present embodiment is a mixture of calcium carbonate particles and copper compounds coated with trimethoxysilane on the surface, the mass percentage of calcium carbonate particles in the mixture is 99%, and the mass percent of trimethoxysilane The percentage content is 0.9%, and the balance is copper chloride.

[0032] The particle size of the calcium carbonate particles in the plastic filler of this embodiment is 0.1-20 μm.

[0033] The preparation method of the plastic filler of the present embodiment, comprises the following steps:

[0034] (1), 9.9kg anhydrous calcium carbonate, 99g metal silicon, 9.9g copper chloride are added in the dry ball mill, the quality of added metal silicon is 1% of anhydrous calcium carbonate quality, the quality of added copper chloride 0.1% of the mass of anhydrous calcium carbonate;

[0035] (2), grind the mixture added in step (1) at a temperature of 200°C-350°C, add industrial methanol to the ball mill at ...

Embodiment 2

[0037]The plastic filler of the present embodiment is a mixture of calcium carbonate particles and copper oxide coated with triethoxysilane on the surface, the mass percentage of calcium carbonate particles in the mixture is 90%, and the content of triethoxysilane The mass percentage is 9.5%, and the balance is copper oxide.

[0038] The particle size of the calcium carbonate particles in the plastic filler is 0.1-20 μm.

[0039] The preparation method of the plastic filler of the present embodiment, comprises the following steps:

[0040] (1), 9.9kg anhydrous calcium carbonate, 990g metal silicon, 49.5g copper oxide are added in the Raymond ball mill, the quality of added metal silicon is 10% of anhydrous calcium carbonate quality, the quality of added copper oxide is 0.5% of the mass of anhydrous calcium carbonate;

[0041] (2), grind the mixture added in step (1) at a temperature of 200°C-350°C, add technical grade ethanol to the ball mill at a flow rate of 2mg-50mg / min d...

Embodiment 3

[0047] The plastic filler of the present embodiment is a mixture composed of calcium carbonate particles and copper hydroxide coated with trimethoxysilane and triethoxysilane on the surface, and the mass percentage of calcium carbonate particles in the mixture is 95%. , the mass percent content of trimethoxysilane and triethoxysilane is 2%, and the balance is copper hydroxide.

[0048] The particle size of the calcium carbonate particles in the plastic filler is 0.1-20 μm.

[0049] The preparation method of the plastic filler of the present embodiment, comprises the following steps:

[0050] (1), 9.9kg anhydrous calcium carbonate, 198g metal silicon, 49.5g copper hydroxide are added in the wind mill, the quality of added metal silicon is 2% of anhydrous calcium carbonate quality, the quality of added copper hydroxide 0.5% of the mass of anhydrous calcium carbonate;

[0051] (2), grind the mixture added in step (1) at a temperature of 200°C-350°C, add industrial methanol and ...

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Abstract

The invention discloses a plastic filling agent and a preparation method thereof. The plastic filling agent is a mixture of calcium carbonate particles and copper compound, wherein trimethoxy silane or / and triethoxysilane is / are coated on the surfaces of the calcium carbonate particles; and the mixture contains 90 to 99 mass percent of calcium carbonate particles, 0.9 to 9.5 mass percent of trimethoxy silane or / and triethoxysilane and the balance of copper compound. The preparation method for the plastic filling agent comprises the following steps of: adding anhydrous calcium carbonate, silicon metal and copper compound into a ball mill, milling the mixture at the temperature of between 200 and 350 DEG C, adding alcohol into the mixture during milling, and continuously milling the mixturefor 1 hour after over 90 percent of milled calcium carbonate particles can pass through a sieve of 2,000 meshes to obtain the plastic filling agent. The plastic filling agent has high affinity with plastic; and the preparation method for the plastic filling agent has short flow and low cost, and is easy to implement in large, medium and small enterprises.

Description

technical field [0001] The invention discloses a plastic filler and a preparation method thereof, in particular to a calcium carbonate-based filler suitable for plastic modification and a preparation method thereof. Background technique [0002] Plastic modification is an indispensable and important link in the application of plastics today. The most economical, easy-to-implement and widely applicable method in plastic modification is the modification of inorganic fillers. Inorganic filler modified plastics can not only reduce the cost of plastic products, but also improve their performance, and it is possible to endow plastic products with various special functions, thus expanding the application range of plastics. Calcium carbonate is a low-cost, wide-ranging reinforcement and toughening modifier, but its disadvantage is that it lacks affinity with plastics. It is generally believed that the finer the calcium carbonate particles, the better the affinity with plastics, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K9/06C08K3/26C08K3/10
Inventor 王冰凌许康
Owner ZIGONG CITY CHUANYOU NEW MATERIAL
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