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Modified calcium carbonate for cables

A calcium carbonate, modified technology, applied in the direction of fibrous filler, dyeing physical treatment, dyeing low-molecular organic compound treatment, etc., can solve the problems of low mechanical strength, poor dispersion, easy sedimentation, etc., to achieve reinforcement in all aspects Performance, improved application range, simple preparation method

Inactive Publication Date: 2017-02-15
贺州钟山县双文碳酸钙新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a modified calcium carbonate for cables to solve the existing problems of calcium carbonate such as hydrophilic and oleophobic, poor dispersibility, easy sedimentation, low mechanical strength, and poor compatibility with cables.
By modifying calcium carbonate, the present invention solves the problems of calcium carbonate such as hydrophilic and oleophobic, poor dispersion, easy sedimentation, low mechanical strength, poor compatibility with polymers and cannot achieve reinforcing effect, and improves the application of calcium carbonate scope; at the same time endowed modified calcium carbonate with anti-aging, flame retardant, smoke elimination and other functions

Method used

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Examples

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Effect test

preparation example Construction

[0056] The method for preparing modified calcium carbonate for cables is characterized in that it comprises the following steps:

[0057] S1: pulverize calcium carbonate and pass through a sieve of 2000-3000 mesh to obtain pulverized calcium carbonate;

[0058] S2: The pulverized calcium carbonate is prepared into a slurry with a concentration of 4%-6%, and tyrosine, catalyst, and initiator are added to the slurry. The microwave power is 130-240W and the temperature is 79-83°C. , Stir at 300-600r / min for 0.5-0.8h to obtain material A;

[0059] S3: Add potassium peroxymonosulfonate, potassium hydrogen phosphate, bridging agent, regulator, cross-linking agent, accelerator, styrene propylene, plasticizer to material A prepared in step S2, under nitrogen protection, microwave power It is 140-180W, the temperature is 69-75℃, and the rotating speed is 200-400r / min and stirring for 0.4-0.7h to obtain material B;

[0060] S4: Add sodium persulfate to material B prepared in step S3, stir for ...

Embodiment 1

[0065] A modified calcium carbonate for cables, in parts by weight, including the following raw materials: 182 parts of calcium carbonate, 54 parts of tyrosine, 0.5 parts of catalyst, 0.5 parts of initiator, 3 parts of potassium peroxymonosulfonate, hydrogen phosphate 2.5 parts of potassium, 0.6 parts of bridging agent, 0.3 parts of regulator, 0.5 parts of crosslinking agent, 0.1 parts of accelerator, 8 parts of styrene propylene, 0.6 parts of plasticizer, 2 parts of sodium persulfate, 5 parts of hydrosol aluminum hydroxide , 4 parts of activated clay, 0.5 parts of compatibilizer, 0.3 parts of dispersant, 2 parts of ammonium chloride, 2.5 parts of smoke suppressant, 0.3 part of ultraviolet absorber, 0.1 part of light stabilizer, 0.5 part of anti-aging agent, 0.4 part of stabilizer Copies

[0066] The catalyst is manganese dioxide;

[0067] The initiator is lauroyl peroxide;

[0068] The bridging agent is an acrylic type bridging agent;

[0069] The regulator is an acrylate regulator...

Embodiment 2

[0088] A modified calcium carbonate for cables, in parts by weight, including the following raw materials: 165 parts of calcium carbonate, 48 parts of tyrosine, 0.3 parts of catalyst, 0.2 parts of initiator, 1.8 parts of potassium peroxymonosulfonate, and hydrogen phosphate 1.6 parts of potassium, 0.4 parts of bridging agent, 0.2 parts of regulators, 0.3 parts of crosslinking agents, 0.1 parts of accelerators, 5.8 parts of styrene propylene, 0.4 parts of plasticizers, 1 part of sodium persulfate, 3.7 parts of hydrosol aluminum hydroxide , 2.8 parts of activated clay, 0.3 parts of compatibilizer, 0.2 parts of dispersant, 1 part of ammonium chloride, 2 parts of smoke suppressant, 0.2 part of ultraviolet absorber, 0.1 part of light stabilizer, 0.3 part of anti-aging agent, 0.2 part of stabilizer Copies

[0089] The catalyst is manganese dioxide;

[0090] The initiator is lauroyl peroxide;

[0091] The bridging agent is an acrylic type bridging agent;

[0092] The regulator is an acryla...

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Abstract

The invention discloses a modified calcium carbonate of cables. The modified calcium carbonate is prepared from the following raw materials of calcium carbonate, tyrosine, a catalyst, an initiator, potassium peroxymonosulfate, potassium hydrogen phosphate, a bridging agent, a regulator, a crosslinking agent, an accelerant, allyl benzene, a plasticizer, sodium persulfate, hydrosol aluminum hydroxide, activated clay, a compatilizer, a dispersant, ammonium chloride, a smoke suppressor, an ultraviolet absorbent, an optical stabilizer, an anti-aging agent and a stabilizer. The modified calcium carbonate has the advantages that by modifying the calcium carbonate, the problems of hydrophilia and oleophobicity of calcium carbonate, poor dispersivity, easiness in settlement, low mechanical strength, poor compatibility with polymers, failure to achieve an enhancing function and the like are solved, and the application range of the calcium carbonate is increased; the anti-aging, flame-retardant, smoke-eliminating and other functions of the modified calcium carbonate are simultaneously realized.

Description

[0001] 【Technical Field】 [0002] The invention belongs to the technical field of modified calcium carbonate preparation, and specifically relates to a modified calcium carbonate for cables. [0003] 【Background technique】 [0004] Calcium carbonate is a commonly used inorganic filler. Because of its wide source and low price, it is widely used in cables, plastics, coatings and other fields. However, the surface of calcium carbonate is hydrophilic and oleophobic, large specific surface area, high surface energy, and easy to agglomerate between particles. When directly or in large quantities are filled into the organic matrix material, it is not only difficult to uniformly disperse, but also has weak bonding force with the matrix, resulting in Defects in the two-phase interface and degradation of certain properties of the composite material. Therefore, in order to broaden its application areas, the surface of calcium carbonate must be modified to make the surface lipophilic and hydro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/06C08K9/04C08K9/02C08K9/00C08K3/26C09C1/02C09C3/06C09C3/08C09C3/04
CPCC08K13/06C08K3/26C08K9/00C08K9/02C08K9/04C08K2003/265C08K2201/011C09C1/021C09C3/006C09C3/04C09C3/06C09C3/08
Inventor 唐文易双
Owner 贺州钟山县双文碳酸钙新材料有限公司
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