CN106554843A

CN106554843A - A kind of biodegradable environment-friendly type Shock absorber oil composition

Info

Publication number: CN106554843A
Application number: CN201510640916.8A
Authority: CN
Inventors: 李永超; 陈惠卿; 杜雪岭; 付丽雪; 汤涛; 桂砚楠; 贾睿; 韦安柱
Original assignee: China Petroleum and Chemical Corp
Current assignee: China Petroleum and Chemical Corp
Priority date: 2015-09-30
Filing date: 2015-09-30
Publication date: 2017-04-05
Anticipated expiration: 2035-09-30
Also published as: CN106554843B

Abstract

The invention provides a kind of biodegradable environment-friendly type Shock absorber oil composition, which includes the component of following weight percentage：Viscosity index improver 0.1～22%；Extreme pressure anti-wear additives 0.01～4.5%；Antirust agent 0.01～4.0%；Pour-point depressant 0.05～1.5%；Antioxidant 0.01～4.0%；Composite anti-foam agent 0.0001～0.015%；Biodegradation type base oil surplus.The most prominent advantage of the present invention is biodegradable, environmental sound, in addition with the good characteristic such as excellent wear-resistant damping, high glutinous finger, low pour point.The present invention applies to the fields such as automobile, motorcycle, track traffic.

Description

A kind of biodegradable environment-friendly type Shock absorber oil composition

Technical field

The present invention relates to field of lubricant, and in particular to a kind of biodegradable environment-friendly type damping The compositionss of device oil, it is oily and biodegradable particularly based on biodegradation type artificial oil Compositionss of the type additive for important component.

Background technology

Amortisseur manufacturer of China is more, and product processes and structure also have larger difference, So the requirement of the composition shock absorber fluid important for amortisseur is also not quite similar, there is presently no Form unified quality criteria requirements.But the performance characteristics according to amortisseur are travelled in vehicle with which During play a part of for, relate generally to suitable viscosity, anti-shearing effect and anti-foaming property To provide the effectively steady damping force of peace, good viscosity-temperature characteristics can be with suitable north-south climate temperature difference bar Part.At present the domestic focus with regard to the patent of shock absorber fluid concentrate on a certain item of above-mentioned oil product or The improvement of several characteristics, and with the harshness that International Environmental Protection is required in recent years, using environment-friendly type oil Product are the only ways for building environment-friendly type and resource-conserving country.In 12 planning of country Also clearly propose the problem closely bound up to water, air, soil etc. and environment for human survival Management.With the fast development of the industries such as China's automobile, railway, motorcycle, amortisseur Usage quantity and replacement frequency accelerate, the environmental problem thus brought should not be underestimated.It is in the past existing There is the shock absorber fluid that technology is disclosed such as：CN 101955842 A, CN 101724500 A and The application of the China such as CN101993766 A, mainly describes the oil based on mineral oil, emphasizes height The characteristics such as glutinous finger, low pour point.Although oily lubricating oil level is very high based on this, Its biological degradability is poor, and certain pollution is caused to environment and soil.

The content of the invention

It is an object of the invention to provide a kind of biodegradable environment-friendly type shock absorber fluid combination Thing, the Shock absorber oil composition have excellent wear-resistant damping, high glutinous finger, low pour point etc. excellent Good characteristic.

In order to realize the object of the invention, the present invention provides a kind of biodegradable environment-friendly type damping Device fluid composition, which includes the component of following weight percentage：

Wherein, formula is preferably：

Degradable base oil of the present invention is artificial oil, predominantly synthesizes hydrocarbon type and conjunction Into ester type, synthesis ester type mainly has dibasic acid esters, polyol ester, complex ester and mixed ester, and which is biological Degradation rate is not less than 70%, and 40 DEG C of dynamic viscosities are in 1～60mm²Between/s, pour point is not higher than -35℃。

Specifically, degradable base oil of the present invention may be selected from P AO 2, HATCOL 2906th, HATCOL 2910, HATCOL 2938 or PRIOLUBE3970 etc., according to subtracting Shake requirement of the device to biodegradable shock absorber fluid viscosity rank, can select therein a kind of or several Plant degradable base oil to be allocated.

Viscosity index improver (VII) of the present invention should have biochemical breakdown performance, It is general to be generated by vegetable oil reaction, in view of the kinetic characteristic of amortisseur high speed shear, it is desirable to viscosity The anti-shear ability of index improver is stronger, so typically requiring that its molecular weight is not more than 120000, preferred PMMA, Viscoplex 10-930, Lubrizol 5685.It is more preferably described Viscosity index improver is PMMA.

The antiwear additive has the sulfide aliphatic acid ester of certain biological degradability, methacrylic acid Ester, unsaturated fatty acid or sulfuration animal and plant fat, preferably as sulfur content 12%～15% it Between sulfide aliphatic acid ester, or more preferably sulfuration natural triglycerides.

Antirust agent of the present invention is alkylation aromatic amine, sulfuration alkene or ethoxylation C₁₂Alkane The mixing of one or more in base phenol, preferably mixes dialkyl diphenylamine.It is of the present invention Antirust agent is that percutaneous skin is taken in or orally sucks the compound not injured, also to eyes and skin Skin is non-stimulated, and firmly can form firm adsorbed film in adsorbing metal surface, effectively suppresses oxygen and water, Particularly contact of the water to metal surface.

Pour-point depressant of the present invention is PMA types, and the carbon alcohol number of the preferred pour-point depressant is 12～14, more preferably described pour-point depressant is Viscoplex 10-171.

Antioxidant of the present invention is dialkyl dithiocarbamate and/or carbaminothioic acid Formic acid esters.

Anti-foaming agent of the present invention is commercially available composite anti-foam agent, in view of the kinetic characteristic of amortisseur, Foam is easily produced, so appropriate anti-foaming agent will be used to reduce the stability of steel foams film, Shorten foam existence time, so as to ensure that amortisseur has effective damping force.Available city Sell composite anti-foam agent such as 1# composite anti-foam agents (T921).

As a kind of preferable technical scheme, environment-friendly type Shock absorber oil composition of the present invention Formula is as follows：PMMA 2～13%, vulcanizes natural triglycerides 0.6～2.2%, mixes dioxane Base diphenylamines 0.01～1%, PMA 0.05-1%, dialkyl dithiocarbamate 0.15-1.1%, 1# composite anti-foam agent 0.002-0.006%, HATCOL 2910,2906 or 2938 Surplus.

And further, the optimum formula of environment-friendly type Shock absorber oil composition of the present invention is such as Under：PMMA7～10%, vulcanizes natural triglycerides 1.4～1.6%, mixes dialkyl group hexichol Amine 0.4～0.6%, PMA0.5%, dialkyl dithiocarbamate 0.5%, 1# are compound anti- Infusion 0.002%, 2910 surpluses of HATCOL.

The preparation of biodegradable environment-friendly type Shock absorber oil composition of the present invention can edge Routine techniquess means, the present invention are used to be not particularly limited this.

Biodegradable environment-friendly type shock absorber fluid provided by the present invention, also with compared with high viscosity The advantage (Viscosity Index up to 286) of index.

Specific embodiment

Following examples are that the present invention is further illustrated, but not as the limit to the present invention System, without departing from the spirit and substance of the case in the present invention, to the inventive method, step or bar Modification or replacement that part is made, belong to the scope of the present invention.

All raw materials that following examples are used are known commercially available prod, wherein PMMA Type viscosity index improver is produced for Lubrizol Corp..

Embodiment 1-5

Embodiment 1-5 provides 5 kinds of biodegradable environment-friendly type shock absorber fluids, Ju Ti Pei Fang It is shown in Table 1：

The formula of 1 embodiment 1～5 of table

Component	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Embodiment 5
						HATCOL 2906	Surplus	-	-	Surplus	-
HATCOL 2910	-	Surplus	2.1	-	2.1
						HATCOL 2938	-	-	Surplus	-	Surplus
PMMA	13	8	2	-	-
						Viscoplex 10-930	-	-	-	22	0.1
Sulfuration natural triglycerides	0.6	1.5	2.2	0.01	4.5
						Mixing dialkyl diphenylamine	1.0	0.5	0.01	4.0	0.01
PMA	1.0	0.5	0.05	0.05	1.5
						Dialkyl dithiocarbamate	1.1	0.5	0.15	4.0	0.01
1# composite anti-foam agents	0.0002	0.002	0.006	0.0001	0.015

1 performance detection of experimental example

For the quality and technical index of amortisseur oil product, now with exploitation shock absorber fluid enterprise of company mark On the basis of standard, compareed with reference oil with embodiment 1-5 according to conventional known test method, Wherein, reference oil is referred to：Reference oil is SAF type products, is widely used in Hyundai Motor and subtracts Shake device, properties of product performance comparing result are shown in Table 3：

2 embodiment of table, 1～5 performance data

Embodiment 2 in No. 22 dynamic viscosity ranks be can be seen that by the data of embodiment 1～5 Best performance, this shock absorber fluid have low pour point, the high glutinous characteristic for referring to and excellent wear resistence Can, particularly biological degradation rate is more than 70%, and in existing shock absorber fluid, not possessing can Biological degradability, hence it is evident that not as good as the present invention.

The above, is only presently preferred embodiments of the present invention, not makees any to the present invention Pro forma restriction, although the present invention is disclosed above with preferred embodiment, but and is not used to Limit the present invention, any those skilled in the art, without departing from technical solution of the present invention In the range of, become when making a little change using the technology contents of the disclosure above or being modified to equivalent The Equivalent embodiments of change, as long as being the content without departing from technical solution of the present invention, according to the present invention Technical spirit any simple modification, equivalent variations and modification that above example is made, Still fall within the range of technical solution of the present invention.

Claims

1. a kind of biodegradable environment-friendly type Shock absorber oil composition, it is characterised in that include The component of following weight percentage：

It is preferred that the component by following weight percentage is constituted：

2. compositionss according to claim 1, it is characterised in that the degradable base Plinth oil is artificial oil, preferably synthetic hydrocarbon type and synthesis ester type, and synthesis ester type is dibasic acid esters, many One or more in first alcohol ester, complex ester or mixed ester, more preferably described degradable basis The biological degradation rate of oil is not less than 70%.

3. compositionss according to claim 1, it is characterised in that biodegradation type base 40 DEG C of dynamic viscosities of plinth oil are in 1～60mm²Between/s, not higher than -35 DEG C of pour point, preferred institute State biodegradation type base oil for PAO 2, HATCOL 2906, HATCOL 2910, The combination of one or more such as HATCOL 2938 or PRIOLUBE3970.

4. compositionss according to any one of claim 1-3, it is characterised in that described glutinous Degree index improver number-average molecular weight is not more than 120,000, and the preferably viscosity index improver is PMMA, Viscoplex 10-930 or Lubrizol 5685, more preferably described Viscosity Index change Enter agent PMMA.

5. compositionss according to any one of claim 1-3, it is characterised in that；It is described anti- Grinding agent has an antiwear additive of biological degradability, preferably sulfide aliphatic acid ester, methacrylate, Unsaturated fatty acid or sulfuration vegetable and animals oils, more preferably sulfur of the sulfur content between 12%～15% Change fatty acid ester, most preferably vulcanize natural triglycerides.

6. compositionss according to any one of claim 1-3, it is characterised in that described anti- Rust agent is alkylation aromatic amine, sulfuration alkene or ethoxylation C₁₂Alkyl phenol preferably mixes two Alkyl diphenylamine.

7. compositionss according to any one of claim 1-3, it is characterised in that the drop Solidifying agent is PMA types, and the carbon alcohol number of the preferably pour-point depressant is 12～14, more preferably The pour-point depressant is Viscoplex 10-171.

8. compositionss according to any one of claim 1-3, it is characterised in that described anti- Oxygen agent is dialkyl dithiocarbamate and/or carbaminothioic acid formic acid esters；The anti-bubble Agent is No. 1 anti-foaming agent.

9. compositionss according to any one of claim 1-8, it is characterised in that the ring The formula of guarantor's type Shock absorber oil composition is as follows：PMMA 2～13%, vulcanizes natural triglycerides 0.6～2.2%, mix dialkyl diphenylamine 0.01～1%, PMA 0.05-1%, dialkyl disulfides For carbaminate 0.15-1.1%, 1# composite anti-foam agent 0.002-0.006%, HATCOL 2910th, 2906 or 2938 surplus.

10. compositionss according to claim 9, it is characterised in that the environment-friendly type subtracts The formula of shake device fluid composition is as follows：

PMMA 7～10%, vulcanizes natural triglycerides 1.4～1.6%, mixes dialkyl group hexichol Amine 0.5%, PMA 0.5%, dialkyl dithiocarbamate 0.5%, 1# are combined anti-bubble Agent 0.002%, 2910 surpluses of HATCOL.