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High-efficiency multifunctional compound enforcing agent and preparation method thereof

A composite reinforcement and multi-functional technology, applied in the field of plastic additives, can solve the problems that affect the safety, service life and aesthetics of doors and windows, and cannot simultaneously improve the strength and toughness of PVC resin, toughness, strength, and whiteness. Significant benefits and economic benefits, improved original strength and modulus, improved process stability

Inactive Publication Date: 2011-04-13
大连天元精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its disadvantages are: due to the high surface energy of inorganic particles, the particles are easy to agglomerate, incompatible with PVC resin, and hydrophilic. When it is added to polyvinyl chloride resin, it will lead to toughness, strength, and whiteness of PVC products. The material is easy to pulverize, and PVC products are difficult to process. After the doors and windows are made into ultraviolet and infrared rays, the doors and windows will be deformed and discolored within one or two years, which will seriously affect the safety, service life and aesthetics of doors and windows.
Although the surface of the nano-calcium carbonate particles of the above-mentioned patent is coated with an acrylate copolymer, it is only a common acrylic ester. toughness

Method used

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  • High-efficiency multifunctional compound enforcing agent and preparation method thereof
  • High-efficiency multifunctional compound enforcing agent and preparation method thereof
  • High-efficiency multifunctional compound enforcing agent and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0052] Take 800 kg of light calcium carbonate, 120 kg of nano-calcium carbonate, 80 kg of talcum powder, calcium stearate, zinc stearate, sodium stearate, 0.2 kg in total, and 0.1 kg of vinyl triacetoxysilane, add to high-speed mixing In the machine, stir at a speed of 900 rpm, heat up to 50 ° C, mix for 40 minutes, then add the emulsion obtained by mixing 40 kg of low-temperature acrylate and 12 kg of water, and control the temperature at 95 ° C. Stir at a rotating speed and react for 0.5 hours. The product obtained by the above heat mixing was placed in a cold mixer at a temperature of 35° C. and a rotation speed of 40 rpm, and mixed for 1 hour, and the discharge temperature was 40° C. The above-mentioned cold-mixed material is passed through a cyclone sieve with a rotating speed of 300 rpm, the size of the mesh hole is 0.8×0.8 mm, and the large particles and impurities are removed through the sieve, and the white powder obtained is the product of the present invention. Tes...

example 2

[0054] Get 600 kilograms of light calcium carbonate, 200 kilograms of nanometer calcium carbonate, 200 kilograms of talcum powder and barium stearate, zinc stearate, calcium stearate, tin stearate total 35 kilograms, gamma-chloropropyltrimethoxy Add 10 kg of silane into the high-speed mixer, stir at 900 rpm, heat up to 80°C, mix for 30 minutes, then add the emulsion obtained by mixing 215 kg of low-temperature acrylate and 43 kg of water, and control the temperature at 125°C. Stir at a speed of 600 rpm and react for 1.5 hours. The product obtained by the above heat mixing was placed in a cold mixer at a temperature of 40°C and a rotation speed of 80 rpm, and mixed for 2 hours, and the discharge temperature was 40°C. The above-mentioned cold-mixed material is passed through a cyclone sieve with a rotation speed of 420 rpm. The size of the sieve mesh is 0.8×0.8 mm. After screening, large particles and impurities are removed, and the obtained white powder is the product of the pr...

example 3

[0056] Get 700 kilograms of light calcium carbonate, 180 kilograms of nanometer calcium carbonate, 120 kilograms of talcum powder and calcium stearate, zinc stearate, sodium stearate, barium stearate total 12 kilograms, gamma-chloropropyl triethoxy Add 5 kg of base silane into the high-speed mixer, stir at 800 rpm, heat up to 70°C, mix for 35 minutes, then add the emulsion obtained by mixing 130 kg of low-temperature acrylate and 32.5 kg of water, and control the temperature at 100°C , stirred at a speed of 600 rpm, and reacted for 1.2 hours. The product obtained by the above heat mixing was placed in a cold mixer at a temperature of 37° C. and a rotation speed of 60 rpm, and mixed for 1.5 hours, and the discharge temperature was 40° C. The above-mentioned cold-mixed material is passed through a cyclone sieve with a rotating speed of 300 rpm, the size of the mesh hole is 0.8×0.8 mm, and the large particles and impurities are removed through the sieve, and the white powder obta...

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Abstract

The invention relates to a high-efficiency multifunctional compound enforcing agent with the following mass ratio of the components thereof: 60-80 parts of light calcium carbonate in nucleome material, 12-20 parts of nanometer calcium carbonate, and 8-20 parts of French chalk; the ratio between the nucleome material and the stearate is 100:0.02-3.5, the ratio between the nucleome material and silane is 100:0.01-1.0, the ratio between the nucleome material and low temperature acrylic ester waterproof emulsion is 100:4.0-21.5, and the ratio between the low temperature acrylic ester waterproof emulsion and water is 100:20-30. The preparation method of the high-efficiency multifunctional compound enforcing agent comprises the following steps: the materials are added to a high-speed mixer for reaction for 0.5-1.5 hours at a temperature of 95-125 DEG C, the materials are placed in a cooling mixer with a temperature of 35-40 DEG C and mixed for 1-2 hours, and then the materials after cool mixing are sifted out. With 10-30 parts of the product of the invention added to resin, strength, tenacity and degree of whiteness of the PVC product can be improved; in addition, the preparation method of the invention is simple and the raw materials are easily available.

Description

technical field [0001] The invention relates to a plastic additive, especially an additive for polyvinyl chloride (hereinafter referred to as PVC). Background technique [0002] Those skilled in the art know that the additive of polyvinyl chloride resin used as profile is mainly calcium carbonate. Its disadvantages are: due to the high surface energy of inorganic particles, the particles are easy to agglomerate, incompatible with PVC resin, and hydrophilic. When it is added to polyvinyl chloride resin, it will lead to toughness, strength, and whiteness of PVC products. The material is easy to pulverize, and PVC products are difficult to process. After being made into doors and windows, they will be subjected to ultraviolet and infrared rays, and the doors and windows will be deformed and discolored within one or two years, which will seriously affect the safety, service life and aesthetics of doors and windows. Therefore, calcium carbonate particles need to be modified. At...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09C1/02C08K3/26C09C3/12C08K9/04C08L27/06C08K9/06C08K3/36
Inventor 李春成王宗霞于清利李伟李金芳李烨
Owner 大连天元精细化工有限公司
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