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Modified phosphorous slag used as plastic filler and preparation method thereof

A phosphorous slag and modification technology, applied in the field of modified phosphorous slag and its preparation, can solve the problems of polluting the environment, waste of resources, etc., and achieve the effects of improving binding, improving dispersibility, and expanding the scope of application

Inactive Publication Date: 2010-07-07
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2006, the output of yellow phosphorus in my country was 790,000 tons, and 8-10 tons of slag will be produced for every ton of yellow phosphorus produced in industry.
However, phosphorus slag is used as a plastic filler, and there is no relevant report

Method used

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  • Modified phosphorous slag used as plastic filler and preparation method thereof
  • Modified phosphorous slag used as plastic filler and preparation method thereof
  • Modified phosphorous slag used as plastic filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A modified phosphorus slag used as a plastic filler and a (dry method) preparation method thereof, the specific production process of the modified phosphorus slag is as follows: at 100 ° C, 1 g of stearic acid is dispersed in 100 g of stearic acid at a speed of 800 rpm Phosphorus slag, stirred and dispersed, slowly lowered to room temperature, and finally prepared into dry modified phosphorus slag. The modification effect on phosphorus slag was evaluated by the activation index and wetting contact angle (the larger the activation index value and the wetting contact angle value, the stronger the lipophilicity after the introduction of organic lipophilic groups on the surface of phosphorus slag). The performance indicators are as follows in Table 1:

[0035] Comparison of physical properties before and after modification of phosphorous slag in Table 1 Example 1

[0036]

Embodiment 2

[0038]A modified phosphorus slag used as a plastic filler and a (wet method) preparation method thereof. The specific production process of the modified phosphorus slag is: at room temperature, 1 g of silane KH-570 is dispersed in the Add 50g of distilled water to 100g of phosphorus slag at room temperature, stir and disperse, place the phosphorus slag slurry in an oven at 80°C to remove most of the water, then raise the temperature to 120°C for drying, and finally prepare wet-process modified phosphorus slag. The modification effect on phosphorus slag is evaluated by activation index and wetting contact angle. The performance indicators are as follows in Table 2:

[0039] Table 2 Comparison of physical properties before and after modification of phosphorus slag in Example 2

[0040]

Embodiment 3

[0042] A modified phosphorus slag and thermoplastic composite material product. The specific production process of the phosphorus slag composite material is: at room temperature, 10g of modified phosphorus slag is dispersed in 100g of polyethylene resin with a stirrer at a speed of 600rpm, stirred and dispersed , and finally prepare a composite material in which phosphorus slag is used as a plastic filler. The tensile strength and elongation at break of the composite material are tested according to GB / T 1040-2006, as shown in Table 3 below:

[0043] The composite material of table 3 embodiment 3 and the physical performance contrast of pure polyethylene

[0044]

[0045] The result of comparing the physical properties of the composite material of Example 3 and pure polyethylene in Table 3 shows that the modified phosphorus slag can be used as a reinforcing filler to fill polyethylene resin.

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Abstract

The invention relates to a modified phosphorous slag used as a plastic filler; which is characterized in that: the modified phosphorous slag is mainly composed of 0.1-10wt percent of surface modifier and 90-99.9wt percent of phosphorous slag; the surface modifier is stearic acid or Gamma-aminopropyl triethoxy silane or gamma-methacryloxypropyl trimethoxy silane; the phosphorous slag is crushed, ground and sieved to obtain phosphorous slag fine powder which is modified by the surface modifier through dry process or wet process to obtain the modified phosphorous slag; the modified phosphorous slag is used as thermoplastic or thermosetting plastic fillers, organic lipophilic group led in from the surface of the modified phosphorous slag and polymer macromolecule are reacted or physically entangled, so as to improve the dispersibility of the phosphorous slag in the plastics, improve the combinability and compatibility of the phosphorous slag and the plastics, improve the tensile strength and bending strength and other mechanical properties of plastic composite materials and reduce the cost of plastic products; by adopting the invention, waste is turned into wealth, harm is turned into god, raw material source is wide, the process is simple and the practical applicability is strong.

Description

technical field [0001] The invention belongs to an ingredient used as an organic polymer compound and its preparation, and relates to a modified phosphorus slag used as a plastic filler and a preparation method thereof. It is suitable for preparing waste slag-phosphorus slag into modified phosphorus slag especially suitable for plastic filler. Background technique [0002] Mineral powder is widely used in plastics, rubber and other industries due to its low price and ability to improve the performance of matrix materials. Phosphorus slag is the waste slag left after the yellow phosphorus is produced in the electric furnace by the electric furnace method with raw materials such as phosphate rock, silica and coke in the industry. Phosphorus slag is a potential brick-lime resource, and the weight percentage of calcium silicate in phosphorus slag reaches 86.7-94.8%. In 2006, the output of yellow phosphorus in my country was 790,000 tons, and 8-10 tons of slag would be produced...

Claims

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Application Information

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IPC IPC(8): C08K9/04C08K9/06C08L101/00C08L23/06C08L63/00C08L67/06C08L61/06
Inventor 霍冀川吴晓明李娴马寒冰
Owner SOUTHWEAT UNIV OF SCI & TECH
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