Calcium zinc composite stabilizer, and processing process and application thereof

A technology of calcium-zinc compounding and processing technology, which is applied in the field of heat stabilizers, can solve the problems of poor stabilization effect of calcium-zinc heat stabilizers and long production process cycle, and achieve obvious synergistic effects, improve cold resistance, and improve heat resistance.

Inactive Publication Date: 2017-12-12
马鞍山市宝博科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems in the prior art that the calcium-zinc heat stabilizer still has poor stabilizing effect and long production process cycle, the present invention provides a calcium-zinc composite stabilizer and its processing technology and application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The calcium-zinc composite stabilizer of the present embodiment, the component of its batching comprises the calcium salt of the complex carboxylic acid of each 30 parts by weight and zinc salt (select calcium stearate and zinc stearate in the present embodiment), each 8 weight Parts of paraffin and stearic acid, and each of 5 parts by weight of β-diketone and octanoylbenzoylmethane.

[0040]The processing technology of the calcium-zinc composite stabilizer of the present embodiment, the steps are:

[0041] Step 1, batching: weigh calcium stearate, zinc stearate, paraffin, stearic acid, β-diketone and octanoylbenzoylmethane according to the formula requirements;

[0042] Step 2. Stirring: After adding water to the reactor and heating it to 60°C, the amount of water added is 50 parts by weight, and the ingredients are sequentially added into the reactor and stirred for 30 minutes;

[0043] Step 3, drying: After pouring the reactant in step 2 into the mold, push it into ...

Embodiment 2

[0047] The calcium-zinc composite stabilizer of the present embodiment, basic batching is the same as embodiment 1, difference and improvement point are: the component of its batching comprises calcium stearate and zinc stearate each 40 parts by weight, each 12 parts by weight of Paraffin and stearic acid, and 8 parts by weight each of beta-diketone and octanoylbenzoylmethane.

[0048] In the processing technology of the calcium-zinc composite stabilizer of this embodiment, the step of press filtration is added after step 2 is stirred, which can reduce the burden of subsequent dehydration and drying, improve the efficiency of the processing technology, and reduce dehydration energy consumption; After the water is collected, in the next batch of production, the calcium salt and zinc salt solutions of complex carboxylic acids are used in step two to avoid waste of insufficiently mixed and reacted components.

[0049] In the processing technology of the calcium-zinc composite sta...

Embodiment 3

[0051] The calcium-zinc composite stabilizer of the present embodiment, basic batching is the same as embodiment 1, difference and improvement are: the component of its batching comprises calcium stearate and zinc stearate each 35 parts by weight, each 10 parts by weight of Paraffin and stearic acid, and 7 parts by weight each of beta-diketone and octanoylbenzoylmethane.

[0052] The processing technology of the calcium-zinc composite stabilizer of the present embodiment, the steps are:

[0053] Step 1, batching: weigh calcium stearate, zinc stearate, paraffin, stearic acid, β-diketone and octanoylbenzoylmethane according to the above formula requirements;

[0054] Step 2. Stirring: add water to the reaction kettle and heat to 70°C, then add the ingredients into the reaction kettle and stir for 40 minutes;

[0055] Step 3, mold entry: pour the reactants of step 2 into the mold, the mold weight is 10 kg, and the mold size is 500mm*550mm*5mm;

[0056] Step 4. Quick-freezing: P...

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Abstract

The invention discloses a calcium zinc composite stabilizer, and a processing process and application thereof, and belongs to the technical field of a heat stabilizer. The calcium zinc composite stabilizer comprises the following components in parts by weight: 30 to 40 parts of calcium salt and zinc salt of composite carboxylic acid, 8 to 12 parts of paraffin, 8 to 12 parts of stearic acid, 5 to 8 parts of beta-diketone and 5 to 8 parts of octyl benzoyl methane. Compared with the stabilizer in the prior art, the calcium zinc composite stabilizer provided by the invention adopts the ratio of the three components to be 1:1:1 for the first time and improves the unexpected technical effects of cold tolerance, heat tolerance, smoothness, toughness, wear resistance and the like when being applied to high-grade plastic; furthermore, destructive tests prove that the service life is at least increased by more than 20 percent compared with the original service life.

Description

technical field [0001] The invention relates to the technical field of heat stabilizers, in particular to a calcium-zinc composite stabilizer and its processing technology and application. Background technique [0002] PVC and PE are general-purpose plastics with the largest output and consumption. The world's PVC production has exceeded 100 million tons, and my country's 17.8 million tons. Due to the poor thermal stability of PVC and the difficulty in processing, about 4% of heat stabilizers must be added during molding and processing. Our country consumes about 700,000 tons of heat stabilizers every year. [0003] Traditionally, the heat stabilizers are mainly lead salt heat stabilizers. Because lead salt stabilizers are highly toxic, bioaccumulative, and easy to generate dust, it will cause chronic problems for operators during production and use. Lead poisoning, and will cause serious environmental pollution after being discarded. With the improvement of people's awar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L91/06C08K5/04C08K5/098C08K5/09C08K5/07B29C39/02
CPCC08K5/04B29C39/02C08K5/07C08K5/09C08K5/098C08K2201/014C08L91/06
Inventor 王庆海王瑞夏学雷王鹏
Owner 马鞍山市宝博科技有限公司
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