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Preparation method of flame-retardant and damp-proof heat stabilizer

A heat stabilizer and technology for preparation steps, which are applied in the field of preparation of organic additives for polyvinyl chloride (PVC) plastics, can solve problems such as easy absorption, and achieve the effects of enhancing compatibility, improving moisture resistance, and improving flame retardancy

Inactive Publication Date: 2018-05-15
常州帝君金属构件厂
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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 flame-retardant and moisture-proof type for the current ordinary heat stabilizer which is easy to absorb moisture in the air during storage, and is extremely combustible at high temperature, which limits its use in polyvinyl chloride materials. The preparation method of heat stabilizer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022] Weigh 40g of hydrotalcite and grind it for 10 minutes, pass it through a 100-mesh sieve, collect the sieved hydrotalcite powder, and mix the sieved hydrotalcite powder, silane coupling agent KH-550 and sodium stearate in a mass ratio of 3:2:1 Stir for 6 minutes to obtain the mixture, put the mixture into a fermenter with 8% peanut oil and 0.8% yogurt by mass of the mixture, and seal and ferment for 6 days at a temperature of 35°C, take out the fermentation product, and rinse with deionized water On the surface of the fermentation product, remove the remaining fermentation liquid, put it in an oven at 55°C for 10 minutes, and cool it down to room temperature naturally to obtain modified hydrotalcite. Weigh 30g of zeolite and grind it for 6 minutes, pass it through an 80-mesh sieve, and collect the sieved zeolite. Powder, pour the sieved zeolite powder into a beaker with 100mL of hydrochloric acid with a mass fraction of 20% and soak for 1h to remove impurities to obtain a...

example 2

[0024]Weigh 45g of hydrotalcite and grind it for 11 minutes, pass it through a 100-mesh sieve, collect the sieved hydrotalcite powder, and mix the sieved hydrotalcite powder, silane coupling agent KH-550 and sodium stearate in a mass ratio of 3:2:1 Stir for 7 minutes to obtain the mixture, put the mixture into a fermenter with 8% peanut oil and 0.8% yogurt by mass of the mixture, and seal and ferment for 7 days at a temperature of 40°C, take out the fermentation product, and rinse with deionized water Remove the remaining fermentation liquid from the surface of the fermentation product, put it in an oven at 60°C for 11 minutes, and cool it down to room temperature naturally to obtain modified hydrotalcite. Weigh 35g of zeolite and grind it for 7 minutes, pass it through an 80-mesh sieve, and collect the sieved zeolite. Powder, pour the sieved zeolite powder into a beaker with 110mL of hydrochloric acid with a mass fraction of 20% and soak for 2h to remove impurities to obtain a...

example 3

[0026] Weigh 50g of hydrotalcite, grind and pulverize it for 12 minutes, pass through a 100-mesh sieve, collect the sieved hydrotalcite powder, and mix the sieved hydrotalcite powder, silane coupling agent KH-550 and sodium stearate in a mass ratio of 3:2:1 Stir for 8 minutes to obtain the mixture, put the mixture into a fermentation tank with 8% peanut oil by weight of the mixture and yogurt with 0.8% by weight of the mixture, seal and ferment at a temperature of 45°C for 8 days, take out the fermentation product, and rinse with deionized water Remove the remaining fermentation liquid from the surface of the fermentation product, put it in an oven at 65°C for 12 minutes, and cool it down to room temperature naturally to obtain modified hydrotalcite. Weigh 40g of zeolite and grind it for 8 minutes, pass it through an 80-mesh sieve, and collect the sieved zeolite. Powder, pour the sieved zeolite powder into a beaker with 120mL of hydrochloric acid with a mass fraction of 20% and...

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Abstract

The invention relates to the technical field of preparation of organic adjuvants for polyvinyl chloride (PVC) plastic, in particular to a preparation method of a flame-retardant and damp-proof heat stabilizer. According to the preparation method, hydrotalcite powder is modified, and then is uniformly dispersed in a PVC material, so that the flame retardancy of the heat stabilizer is improved; thehydrotalcite powder, plant oil and yoghourt are fermented together; under the action of microorganisms, an ester group is grafted to the surface of the hydrotalcite powder to endow the hydrotalcite powder with a waterproofing capacity, so that the damp-proof performance of the heat stabilizer is improved; ethyecellulose, castor oil, silicon oil and propylene glycol are prepared into emulsion, anda green body is soaked in the emulsion; aluminium hydroxide is added for reaction; during decomposition, a large amount of heat is absorbed, so that rise of temperature of a matrix is suppressed; furthermore, a layer of water vapor for isolating oxygen is formed on the surface of the material, and the flame retardancy of the heat stabilizer is improved; the preparation method has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of preparation of organic additives for polyvinyl chloride (PVC) plastics, in particular to a preparation method of a flame-retardant and moisture-proof heat stabilizer. Background technique [0002] Polyvinyl chloride (PVC) is a thermoplastic linear polymer produced by free radical polymerization of vinyl chloride monomer. It is the third largest general-purpose plastic in the world, and its output is second only to polyethylene (PE) and polypropylene (PP). Its products have the advantages of easy control of hardness, good mechanical properties, corrosion resistance, good electrical insulation, high transparency and low price. They are widely used in construction, light industry, chemical industry, electronics, aerospace, automobile, agriculture and other fields. the use of. [0003] However, there are defects in the PVC structure, poor thermal stability, and thermal degradation is prone to occur during PV...

Claims

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Application Information

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IPC IPC(8): C08L91/06C08L1/28C08L91/00C08L83/04C08K13/06C08K9/06C08K9/04C08K9/02C08K3/26C08K3/34C08K3/22C08K5/053C08L27/06
Inventor 管小梅杨亚生张建初
Owner 常州帝君金属构件厂
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