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A kind of environment-friendly high-efficiency liquid composite heat stabilizer for PVC slush molding process and preparation method thereof

A heat stabilizer and liquid technology, which is applied in the field of environment-friendly and efficient liquid composite heat stabilizer for PVC slush molding process and its preparation, can solve the problem of less environment-friendly heat stabilizer, achieve convenient feeding and metering, reduce volatilization loss, and be beneficial to environmental protection Effect

Inactive Publication Date: 2017-09-01
SHANDONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the late start of my country's environmental protection heat stabilizer industry, there is still a certain gap between the process technology and foreign countries. The calcium-zinc composite heat stabilizer is in the early stage of development, and there are few heat stabilizers that can meet the needs of PVC slush molding process. In addition, There are fewer environmentally friendly thermal stabilizers that can take into account both high-efficiency thermal stability and thermal volatilization loss resistance

Method used

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  • A kind of environment-friendly high-efficiency liquid composite heat stabilizer for PVC slush molding process and preparation method thereof
  • A kind of environment-friendly high-efficiency liquid composite heat stabilizer for PVC slush molding process and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0027] Step 1, the preparation of liquid calcium-zinc composite heat stabilizer:

[0028] According to the technical plan, select general industrial liquid calcium-zinc composite heat stabilizer (calcium-zinc compounding ratio is 4:3), TOTM, and dipentaerythritol three raw materials, and weigh 600g, 300g, 100g in turn to prepare PVC enamel according to the following steps Liquid calcium-zinc composite heat stabilizer for plastics process.

[0029] The 1st (1) step, first general industrial liquid calcium-zinc composite thermostabilizer is added in the reactor that has paddle stirrer, while stirring, add TOTM, maintain pressure in the reactor to be 0.1MPa and be normal pressure, heat up simultaneously ( from room temperature to 100°C) and stir the two evenly;

[0030] In the (2) step, the uniformly mixed liquid is flowed into the continuous rectification equipment at atmospheric pressure by its own weight, the rectification temperature is set to be 200° C., and the rectificati...

Embodiment 2

[0049] Select three kinds of raw materials of general industrial liquid calcium-zinc composite heat stabilizer, TOTM, and dipentaerythritol, and weigh 600g, 350g, and 250g successively to prepare the liquid calcium-zinc composite heat stabilizer for PVC slush molding process, and its preparation method is the same as that of the embodiment 1.

Embodiment 3

[0051] Select three kinds of raw materials of general industrial liquid calcium-zinc composite heat stabilizer, TOTM, and dipentaerythritol, and weigh 400g, 200g, and 50g successively to prepare the liquid calcium-zinc composite heat stabilizer for PVC slush molding process, and its preparation method is the same as that of Example 1.

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Abstract

The invention relates to an environment-friendly efficient liquid composite thermal stabilizing agent for a PVC slush molding process, and in particular to a liquid composite thermal stabilizing agent which is applicable to soft PVC surface slush molding of an automobile instrument panel. As polyhydric alcohol type auxiliary thermal stabilizing agents are compounded, the thermal stability, particularly the thermal stability in the middle and later periods in PVC powder slush molding process can be remarkably improved, and moreover as an organic micromolecule solvent in a conventional liquid calcium-zinc composite thermal stabilizing agent is replaced by using a polar ester type plasticizer with high molecular weight, the thermal volatilization loss of a PVC slush molded surface can be remarkably reduced.

Description

technical field [0001] The invention belongs to the field of heat stabilizer preparation, and in particular relates to an environment-friendly and high-efficiency liquid composite heat stabilizer for PVC slush molding process and a preparation method. Background technique [0002] In recent years, the rapid development of the automobile industry has driven the development of automobile interior materials and its manufacturing industry. The car dashboard skin is an important part of the car interior, and its molding process mainly includes: PVC / ABS vacuum blister molding, powder PVC slush molding, TPU slush molding / PU spraying, leather molding, etc. Among them, although the cost of PVC / ABS vacuum blister molding is low, its hand feeling and anti-aging properties are poor, and it is mostly used on low-grade cars; the environmentally friendly TPU slush molding / PU spraying and leather molding have excellent product performance, but the cost It is too high, which limits its furt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K5/12C08K5/053C08L27/06
Inventor 贾玉玺赵亚如安立佳陈娟高琳琳姚卫国
Owner SHANDONG UNIV