Stabilizing agent used for producing PVC plastic products and preparation technique thereof

A plastic product and stabilizer technology, applied in the field of chlorine-containing polymer product processing, can solve the problems of limited thermal stability improvement, unfavorable hard product processing, yellow and red surface of the product, etc., to reduce redness of color and improve complexation The ability of metal ions and the effect of lowering the softening point

Inactive Publication Date: 2010-04-07
张保发
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are already some calcium-zinc composite stabilizers used in hard products on the market, and there are more or less problems of one kind or another. As described in patent 200610065423.7, the process is melting, but the soap components are still Synthesizing separately will undoubtedly increase energy consumption; when processing hard products, the processing temperature is generally low, otherwise the stability will drop sharply, and the surface of the product will turn yellow and red, so it can only be improved by adding an appropriate amount of lubricant. In this case, the mechanical properties of the product will be reduced, and the welding performance will drop sharply.
In addition, some patents add rare earth components to improve processing performance, but the improvement of thermal stability is limited, and a certain cost is increased
Some patents use epoxy modification, but it increases the plasticizing ability, which is not conducive to the processing of hard products, but has a better effect on semi-rigid and soft products

Method used

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  • Stabilizing agent used for producing PVC plastic products and preparation technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The first step: the preparation of intermediates

[0035] Put 90kg of stearic acid and 10kg of cyanuric acid into the reaction kettle, heat to melt them; when the melt temperature reaches 80°C, put in a catalyst composed of 0.5kg of hydrogen peroxide and 2.2kg of ammonia water and dissolve it; Calcium 12.5kg, magnesium hydroxide 8.6kg and zinc oxide 11.8kg, and vacuum dehydration until no water comes out, and stop the heating operation when the melt temperature reaches 140°C; then or add 30kg of hydrotalcite, stir for 30 minutes, and cool to Discharging after 120°C; cooling to room temperature, crushing into 200 mesh as a spare intermediate.

[0036] The second step: the preparation of the stabilizer

[0037] The hydrotalcite of above-mentioned intermediate and 50kg, 10kg are made antioxidant 626, 15kg pentaerythritol, 5kg trihydroxyethyl cyanuric acid, the dibenzoylmethane of 10kg, the hexyl amino acrylate of 10kg and the poly Ethylene wax is used as a lubricant, whi...

Embodiment 2

[0040] The first step: the preparation of intermediates

[0041] Put 95kg of stearic acid and 5kg of cyanuric acid into the reaction kettle, heat to melt them; when the melt temperature reaches 80°C, put in a catalyst composed of 0.5kg of hydrogen peroxide and 2.2kg of ammonia water and dissolve it; then put it into oxidation Calcium 8.2kg, magnesium hydroxide 5.4kg and zinc oxide 7.2kg, and vacuum dehydration, until no water comes out, and when the melt temperature reaches 140 ℃, stop heating operation; then or add hydrotalcite 30kg, after stirring for 30 minutes, cool to Discharging after 120°C; cooling to room temperature, crushing into 200 mesh as a spare intermediate.

[0042] The second step: the preparation of the stabilizer

[0043] The above-mentioned intermediate and 40kg of hydrotalcite, 10kg of antioxidant 1024, 12kg of polyethylene glycol 6000, 5kg of trishydroxyethyl cyanuric acid, 8kg of octanoylbenzoylmethane, and 10kg of hexyl aminobutacrylate And the polyet...

Embodiment 3

[0046] The first step: the preparation of intermediates

[0047] Put 90kg of stearic acid and 10kg of terephthalic acid into the reaction kettle, heat to melt them; when the melt temperature reaches 80°C, put in a catalyst composed of 0.5kg of hydrogen peroxide and 2.2kg of ammonia water and dissolve it; then put it into oxidation Calcium 10.2kg, magnesium hydroxide 8.8kg and zinc oxide 12.4kg, and vacuum dehydration until no water comes out, and stop the heating operation when the melt temperature reaches 140°C; then or add 30kg of hydrotalcite, stir for 30 minutes, and cool Discharging after reaching 120°C; cooling to room temperature, crushing into 200 mesh as a spare intermediate.

[0048] The second step: the preparation of the stabilizer

[0049] The above-mentioned intermediate and 50kg of hydrotalcite, 10kg of antioxidant 1010, 14kg of polyethylene glycol 2000, 5kg of trihydroxyethyl cyanuric acid, 10kg of stearyl benzoylmethane, and 10kg of aminobutyrylic acid octyl T...

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Abstract

The invention belongs to the technical field of the processing of chlorine-containing polymer products, which discloses a stabilizing agent used for producing PVC plastic products and a preparation method thereof. The preparation method is mainly and technically characterized by comprising the following steps: putting organic acid into a reaction kettle sequentially, heating to dissolve the organic acid, putting a catalyst and dissolving the catalyst; then, putting each metal compound sequentially, preparing an intermediate after dewatering, heating, discharging and cooling, then putting the intermediate, other lamellar compounds, an antioxidant, a light stabilizing agent, pentaerythritol ester, diketone, amino crotonate and a lubricant into a compounding kettle and producing the stabilizing agent used for producing the PVC plastic products after compounding and stirring. The stabilizing agent has the characteristics of no toxicity, high stability, superior consistency performance with resin and good weatherability.

Description

technical field [0001] The invention belongs to the technical field of chlorine-containing polymer product processing, and in particular relates to a stabilizer used in the production of PVC plastic products and a preparation process thereof. Background technique [0002] As we all know, polyvinyl chloride (PVC) has become one of the most widely used materials in the plastic industry. It has the characteristics of wear resistance, high strength, light weight, good electrical insulation, corrosion resistance, low price, and low energy consumption. , There are many molding and modification methods, the production and sales rank the second in the world, and the application fields cover almost all aspects of our production and life. Since there are serious defects in the stability of PVC resin and its products, it is necessary to add a suitable stabilizer to improve it. Under the current situation, as environmental protection and health issues are increasingly concerned by peop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/02C08K5/098C08K5/053C08K5/07C08K5/205C08K5/138C08K5/524C08K5/36C08L27/06
Inventor 张保发王兴为张文勤贾东立张玉华马金峰
Owner 张保发
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