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A kind of aviation hydraulic oil viscosifier and its synthesis method

A tackifier and initiator technology, applied in the field of oil additives, can solve the problems of high price, difficult to obtain, high product cost, and achieve the effect of reducing production costs and getting rid of dependence

Active Publication Date: 2015-10-07
PLA AIR FORCE OIL MATERIAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that the raw material alcohols used are C7-C10 saturated alkyl alcohols. These high-grade alkyl esters are often expensive and difficult to obtain, and the low product selectivity leads to high cost of tackifiers. For example, when C7-C9 is used as raw materials , the selectivity of tackifier is too low, resulting in high product cost, C10 decanol is currently mainly dependent on imports, these problems have greatly restricted the development of my country's aviation fuel

Method used

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  • A kind of aviation hydraulic oil viscosifier and its synthesis method
  • A kind of aviation hydraulic oil viscosifier and its synthesis method

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0026] Preparation Example 1: Preparation of tackifier block copolymer (the weight ratio of block A and block B is about 1:4)

[0027] 1) Synthesis of Block A

[0028] Amyl methacrylate monomer (154g, 1mol), solvent butanone (700g) and azobisisobutyronitrile (1.13g) were added to the reactor, and the reactor was equipped with a high-purity nitrogen interface, a mechanical stirrer, Water separator, condenser tube, etc. Start stirring (rotating speed 200r / min), heat the reaction system to 80°C, and then raise the temperature to 94°C in a temperature-programmed manner; at this temperature, the amyl methacrylate monomer is polymerized for about 4 hours until the monomer is converted The rate is between 97% and 99.9%;

[0029] 2) Synthesis of Block B

[0030]After the reaction in step 1) is completed, add 616g of undecyl methacrylate to the reactor, and at the same time add about 1.5g of benzoyl peroxide, the reaction temperature drops to about 83°C, and the polymerization rea...

preparation Embodiment 2

[0033] Preparation Example 2: the preparation of tackifier block copolymer (the weight ratio of block A and block B is about 1:3)

[0034] Except using 462g undecyl methacrylate in step 2), adopt the same method as preparation example 1 to prepare tackifier block copolymer, wherein the weight ratio of block A and block B is about 1: 3.

preparation Embodiment 3

[0035] Preparation Example 3: the preparation of tackifier block copolymer (the weight ratio of block A and block B is about 1:2.5)

[0036] Except using 385g undecyl methacrylate in step 2), adopt the same method as Preparation Example 1 to prepare tackifier block copolymer, wherein the weight ratio of block A and block B is about 1: 2.5.

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Abstract

The invention relates to a tackifier segmented copolymer and a synthetic method thereof. The tackifier segmented copolymer is a (methyl) acrylic ester segmented copolymer and comprises a segment A and a segment B, wherein the segment A is obtained by polymerizing (methyl) acrylic acid C5-C6 alkyl ester monomers; the segment B is obtained by polymerizing (methyl) acrylic acid C11-C12 alkyl ester monomers. The (methyl) acrylic ester segmented copolymer is formed by combining relatively short alkyl radical (C5-C6) segments with relatively long alkyl radical (C11-C12) segments, so that the tackifying effect of the copolymer is ensured, expensive higher alcohol raw materials are reduced or prevented from being used, and the product selectivity is improved, and thus, the cost is lowered. The tackifying effect, oxidation stability and shearing stability of the copolymer reaches or are better than those of a conventional product, and moreover, the dependency on foreign raw materials is avoided.

Description

technical field [0001] The present application relates to the field of oil additives, in particular to an aviation hydraulic oil viscosifier and a synthesis method thereof. Background technique [0002] Viscosifier is also called viscosity additive or viscosity index improver. The viscosity index of different oil products is different. The viscosity index of aviation fuel is relatively low. To obtain oil products with higher viscosity index, additives must be added. Additives are generally oil-soluble polymer compounds with a molecular weight of more than 10,000. The effect of increasing the viscosity grade can be achieved by adding a small amount of tackifier to the lower viscosity base oil. [0003] There are many types of tackifiers, and the common tackifiers used in aviation fuels include T603 and T602. Among them, T603 is a polyisobutylene polymer, which is mainly used in lubricating oils; T602 is a poly(meth)acrylate polymer, and T602 is mainly used as a tackifier in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F295/00C08F220/18C08F4/04C08F4/34C10M145/14C10N30/02
Inventor 刘多强黄毅赵升红曲涛都长飞王德岩韩松霖赵秀丽
Owner PLA AIR FORCE OIL MATERIAL RES INST