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Special plasticizer TM8 for automobile interior parts

A technology of automotive interior parts and plasticizers, which is applied in the field of plasticizers and can solve the problem of low odor in the car

Inactive Publication Date: 2018-06-29
JIANGSU SENHE CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that more and more automobile brands are localized, and the plasticizers used in automobile interior decorations have high requirements, and it is necessary to add plasticizers with high and low temperature resistance, low atomization and low odor to achieve high temperature Occasional precipitation, anti-aging, low odor in the car, etc., overcome the shortcomings of the prior art, and provide a special plasticizer TM8 for automotive interior parts. The plasticizer has large molecular weight, good environmental protection, high plasticizing efficiency, good atomization degree, high and low temperature resistance, low volatility, low odor, and good stability

Method used

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  • Special plasticizer TM8 for automobile interior parts

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] This embodiment provides a special plasticizer TM8 for automotive interior parts. The raw and auxiliary materials of the plasticizer TM8 include the following components: acid anhydride, alcohol, catalyst, sodium carbonate and filter aid.

[0065] In this embodiment, the sum of the weight of acid anhydride and alcohol is the total feed weight, alcohol in mass ratio: acid anhydride>2.1, the catalyst accounts for 0.1‰-1‰ of the total feed weight, and sodium carbonate accounts for 0.1‰-1‰ of the total feed weight. 0.7‰, filter aid accounts for 0.3‰-1‰ of the total weight of feed;

[0066] The acid anhydride is trimellitic anhydride; the alcohol is n-octanol; the catalyst is isopropyl titanate; the filter aid is diatomaceous earth.

[0067] The preparation process of the special plasticizer TM8 for automotive interior parts is as follows:

[0068] ① Trimellitic anhydride and n-octanol are put into the esterification kettle for esterification reaction, and after the esterif...

Embodiment 2

[0074] The specific plasticizer TM8 for automotive interior parts in the embodiment 1 provided by this embodiment, the raw and auxiliary materials of the plasticizer TM8 include by mass parts: trimellitic anhydride: 1 part, n-octanol: 2.5 parts, catalyst: 0.35 ×10 -3 -3.5×10 -3 Parts, sodium carbonate: 0.35×10 -3 -2.45×10 -3 Parts, diatomaceous earth: 1.05×10 -3 -3.5×10 -3 share.

[0075] The preparation process of the special plasticizer TM8 for the above-mentioned automotive interior parts is as follows: figure 1 As shown, it includes the following process: esterification-refining-press filtration-molecular distillation, wherein:

[0076] (1) Esterification

[0077] Check whether all material systems, vacuum systems, heating systems, cooling systems and transmission systems are normal, check whether the bottom valve of the esterification tank is closed, and whether the esterification tail gas is vented;

[0078] Pour n-octanol into the esterification kettle. Afte...

Embodiment 3

[0128] This embodiment also provides a special plasticizer TM8 for automotive interior parts. The plasticizer TM8 is esterified, refined and pressed by trimellitic anhydride, n-octanol, isopropyl titanate, sodium carbonate, diatomaceous earth and auxiliary materials. obtained by filtration;

[0129] The components by mass parts are as follows: by mass parts: trimellitic anhydride: 1 part, n-octanol: 2.5 parts, isopropyl titanate: 0.35×10 -3 -3.5×10 -3 Parts, sodium carbonate: 0.35×10 -3 -2.45×10 -3 Parts, diatomaceous earth: 1.05×10 -3 -3.5×10 -3 parts, accessories: 0.001-0.002 parts, of which:

[0130] The auxiliary materials are mixed with chlorinated paraffin, leveling agent, compound rare earth, lubricant, coupling agent, glass fiber powder, calcium / zinc stabilizer, soybean oil and flame retardant system;

[0131] The components of the auxiliary materials in parts by mass are as follows:

[0132] Chlorinated paraffin: 9-11 parts, leveling agent: 8-10 parts, compound...

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Abstract

The invention discloses a special plasticizer TM8 for automobile interior parts. Raw materials and auxiliary materials of the plasticizer TM8 comprise acid anhydride, alcohol, a catalyst, sodium carbonate and a filter aid. A process of the special plasticizer TM8 for the automobile interior parts comprises esterification, purification and filter press purification, and molecular distillation (short-path distillation). In esterification, alcohol is added first, after the temperature of a reactor is less than 80DEG C, 1,2,4-benzeneticarboxylic anhydride is added, then the catalyst is added, whenthe temperature of the material rises to 220DEG C, a negative pressure reaction starts, when an acid value is less than or equal to 0.1mgKOH / g, flash evaporation and dealcoholization start. In purification, steam stripping is performed while temperature rises to 215+ / -10DEG C, and the filter aid diatomite is added so as to purify and stir. In molecular distillation, the vacuum degree reaches lessthan 100pa, and the material inlet temperature is maintained at 215+ / -5DEG C. The raw materials are easy to obtain, the process is advanced, the equipment is simple, the plasticizer is environmentally friendly, has high plasticizing efficiency, resists high and low temperature, has low volatility, has small odor, and is highly stable.

Description

technical field [0001] The invention relates to a plasticizer, in particular to a special plasticizer TM8 for automotive interior parts. Background technique [0002] Domestic plasticizers are mainly ordinary plasticizers. Ordinary high-temperature-resistant plasticizers can only meet the high-temperature resistance requirements of ordinary products, and have poor cold resistance; high-temperature-resistant plasticizers such as automotive interior dashboards have high requirements. Plasticizers cannot meet the requirements of low atomization, low odor, and high and low temperature resistance; plasticizers with high high and low temperature resistance are monopolized by foreign plasticizer manufacturers, and domestic manufacturers have to import them at high prices. With the improvement of VOC requirements, the requirements of plasticizers with low odor and low atomization also increase accordingly. Therefore, it is the future development trend to independently develop low-te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/08C07C67/56C07C69/76C08K5/12
CPCC07C67/08C07C67/56C07C69/76C08K5/12
Inventor 丁磊
Owner JIANGSU SENHE CHEM TECH CO LTD
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