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Calcium-zinc compound heat stabilizer

A heat stabilizer and calcium-zinc composite technology, which is applied in the field of calcium-zinc composite heat stabilizers, can solve the problems of high VOCs, strong odor, and low melting point, and achieve the effects of good environmental protection, easy production and operation, and low VOCs

Inactive Publication Date: 2017-08-22
台州联成新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing heat stabilizer is compounded by calcium stearate, zinc stearate, phosphite, diketone, etc. The main component is organic matter, with low melting point, strong odor and high VOCs

Method used

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  • Calcium-zinc compound heat stabilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of calcium-zinc composite heat stabilizer, the mass fraction of its formula is as follows:

[0028] Nano Zinc Oxide 20%

[0029] Calcium Oxide 10%

[0030] Magnesium Oxide 25%

[0031] Molecular sieve 45%;

[0032] The preparation process is divided into automatic weighing section, mixing section and automatic packaging section. The automatic weighing section adopts automatic weighing and screw feeding system. The mixing section adopts double conical screw mixer with a mixing time of 30 minutes. The automatic packaging section adopts Fully automatic packaging machine, the entire production pipeline system is in a negative pressure sealed state.

[0033] The stirring speed in the mixing section is 60r / pm, and the stirring time is 30min.

[0034] The main contents of nano-zinc oxide, calcium oxide, magnesium oxide and molecular sieve are all ≥99%. Nano-zinc oxide is produced by indirect method. Molecular sieve is made of 4A molecular sieve and calcined at 800℃....

Embodiment 2

[0049] A kind of calcium-zinc composite heat stabilizer, the mass fraction of its formula is as follows:

[0050] Nano Zinc Oxide 18%

[0051] Calcium Oxide 12%

[0052] Magnesium Oxide 28%

[0053] Molecular sieve 42%;

[0054] The preparation process is divided into automatic weighing section, mixing section and automatic packaging section. The automatic weighing section adopts automatic weighing and screw feeding system. The mixing section adopts double conical screw mixer with a mixing time of 30 minutes. The automatic packaging section adopts Fully automatic packaging machine, the entire production pipeline system is in a negative pressure sealed state.

[0055] The stirring speed in the mixing section is 84r / pm, and the stirring time is 38min.

[0056] The main contents of nano-zinc oxide, calcium oxide, magnesium oxide and molecular sieve are all ≥99%. Nano-zinc oxide is produced by indirect method. Molecular sieve is made of 4A molecular sieve and calcined at 800℃....

Embodiment 3

[0058] A kind of calcium-zinc composite heat stabilizer, the mass fraction of its formula is as follows:

[0059] Nano Zinc Oxide 18

[0060] Calcium Oxide 12%

[0061] Magnesium Oxide 25%

[0062] Molecular sieve 45%;

[0063]The preparation process is divided into automatic weighing section, mixing section and automatic packaging section. The automatic weighing section adopts automatic weighing and screw feeding system. The mixing section adopts double conical screw mixer with a mixing time of 30 minutes. The automatic packaging section adopts Fully automatic packaging machine, the entire production pipeline system is in a negative pressure sealed state.

[0064] The stirring speed in the mixing section is 50r / pm, and the stirring time is 30min.

[0065] The main contents of nano-zinc oxide, calcium oxide, magnesium oxide and molecular sieve are all ≥99%. Nano-zinc oxide is produced by indirect method. Molecular sieve is made of 4A molecular sieve and calcined at 800℃. ...

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Abstract

The invention relates to a calcium-zinc compound heat stabilizer. A formula of the calcium-zinc compound heat stabilizer contains the following components in percentage by mass: 15%-25% of nano-zinc oxide, 5%-15% of calcium oxide, 20%-30% of magnesium oxide and 40%-50% of a molecular sieve. A preparation process of the calcium-zinc compound heat stabilizer comprises an automatic weighing stage, a mixing state and an automatic packaging stage, wherein an automatic weighing type screw rod loading system is adopted in the automatic weighing stage; a dual-cone-shaped screw rod mixing machine is adopted in the mixing stage, and the mixing time is 30 minutes; a full-automatic packaging machine is adopted in the automatic packaging stage; and a whole production pipeline system is in a negative pressure closed state. The calcium-zinc compound heat stabilizer has the beneficial effects that the thermal stabilizing time can be guaranteed, meanwhile, a product is odorless and low in VOCs, the production is easy in operation and good in environmental friendliness, and the process is simple.

Description

technical field [0001] The invention relates to a calcium-zinc composite heat stabilizer, in particular to an odorless and low-VOCs calcium-zinc composite heat stabilizer. Background technique [0002] According to the definition of the World Health Organization, a compound with a boiling point of 50-250°C, a saturated vapor pressure exceeding 133.32Pa at room temperature, and a class of organic compounds that exist in the air in the form of vapor at room temperature are volatile organic compounds (VOCs). According to their different chemical structures, they can be further divided into eight categories: alkanes, aromatics, alkenes, halocarbons, esters, aldehydes, ketones and others. VOCs have photochemical activity, and they are important precursors for the formation of fine particulate matter (PM2.5) and ozone when emitted into the atmosphere, which has a great impact on ambient air quality. In addition to affecting environmental quality, VOCs emitted by the PVC plastic i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K13/04C08K7/26C08K3/22C08L27/06
CPCC08K13/04C08K3/22C08K7/26C08K2003/2206C08K2003/222C08K2003/2296C08K2201/011C08L2201/08C08L27/06
Inventor 韦广华
Owner 台州联成新材料有限公司
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