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Process for synthesizing zinc pentaerythritol in heat stabilizer

A technology for the synthesis of zinc pentylenetethritol, which is applied in the field of synthesis of zinc pentaerythritol, can solve the problems of no thermal stability effect, hinder the smooth progress of processing, affect the transparency of products, etc., and achieve long-term thermal stability Strong resistance, ability to inhibit, and the effect of inhibiting zinc burning

Inactive Publication Date: 2017-01-11
广东鑫达新材料科技有限公司
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Problems solved by technology

[0004] In PVC stabilizers, pentaerythritol has no thermal stability effect when used alone. Due to its strong water solubility, pentaerythritol has poor compatibility with PVC and plasticizers. It is deposited on the equipment during processing, hindering the smooth progress of processing and affecting the finished product. Transparency, there may be blooming phenomenon

Method used

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  • Process for synthesizing zinc pentaerythritol in heat stabilizer

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Embodiment 1

[0016] Embodiment 1: take by weighing active zinc oxide and pentaerythritol powder 121.5g and 136.0g respectively and add in the high-speed mixer and mix, wherein the rotating speed of the high-speed mixer is 1500r / min, after mixing for 5 minutes, place a three-necked flask, and the reaction temperature setting: 140°C, vacuum degree: -100KPa, react for 60min, and stir at 1000r / min. After the reaction, cool the product to room temperature and pulverize it with an ultrafine pulverizer to obtain zinc pentaerythritol C.

[0017] Comparison of zinc stearate A, pentaerythritol B and pentaerythritol zinc C in oven aging experiments

[0018] Among them A: zinc stearate: hydrotalcite 1:1

[0019] B: pentaerythritol: hydrotalcite 1:1

[0020] C: zinc pentaerythritol: hydrotalcite 1:1

[0021] figure 1 For the analysis diagram of the experimental results, refer to figure 1 As shown, the prepared zinc pentaerythritol has the anti-incipient coloring property of zinc stearate, and has a...

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Abstract

The invention discloses a process for synthesizing zinc pentaerythritol in a heat stabilizer, and relates to the technical field of chemical preparation. The particular process includes respectively weighing activated zinc oxide and pentaerythritol powder according to a molar mass ratio of 3:2; placing the activated zinc oxide and the pentaerythritol powder in a high-speed mixer, mixing the activated zinc oxide and the pentaerythritol powder in the high-speed mixer at the rotational speed of 1300-1500 r / min, mixing and stirring the activated zinc oxide and the pentaerythritol powder for 20 minutes to obtain mixtures and carrying out reaction on the mixtures in a reactor for the reaction time of 45-90 min; cooling products until the temperatures of the products reach the room temperature; grinding the products by the aid of an ultrafine grinder to obtain the zinc pentaerythritol. The process has the advantages that the process for preparing the zinc pentaerythritol is simple, and the zinc pentaerythritol prepared by the aid of the process has initial-stage coloring resistance just like zinc stearate and is high in zinc burning inhibiting capacity and long-term heat stability.

Description

[0001] Technical field: [0002] The invention relates to a process for synthesizing a thermal stabilizer zinc pentaerythritol, which belongs to the technical field of chemical preparation. [0003] Background technique: [0004] In PVC stabilizers, pentaerythritol has no thermal stability effect when used alone. Due to its strong water solubility, pentaerythritol has poor compatibility with PVC and plasticizers. It is deposited on the equipment during processing, hindering the smooth progress of processing and affecting the finished product. Transparency, there may be blooming phenomenon. [0005] Invention content: [0006] In view of the above problems, the technical problem to be solved in the present invention is to provide a synthesis process of heat stabilizer zinc pentylene glycolate. [0007] The heat stabilizer zinc pentaerythritol synthesis process of the present invention. Its specific synthesis process is as follows: according to the molar mass ratio of 3:2, res...

Claims

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Application Information

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IPC IPC(8): C07C29/70C07C31/24
CPCC07C29/70C07C31/245
Inventor 林华雄王新波林泽鹏
Owner 广东鑫达新材料科技有限公司
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