CN105738401A - Method for measuring softening point of rosin - Google Patents
Method for measuring softening point of rosin Download PDFInfo
- Publication number
- CN105738401A CN105738401A CN201610234520.8A CN201610234520A CN105738401A CN 105738401 A CN105738401 A CN 105738401A CN 201610234520 A CN201610234520 A CN 201610234520A CN 105738401 A CN105738401 A CN 105738401A
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- China
- Prior art keywords
- softening point
- colophonium
- instrument
- rosin
- detection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering
- G01N25/04—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of melting point; of freezing point; of softening point
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The invention discloses a method for measuring the softening point of rosin, aims at providing a measuring method which can be used for fast detecting the softening point and is low in labor intensity and easy and convenient to operate, and belongs to the technical field of chemical detection.According to the method, an SD-0606T type automatic softening point tester is used for detecting the softening point of rosin.
Description
Technical field
The present invention relates to the assay method of a kind of softening point, specifically, be the mensuration of a kind of Colophonium softening point
Method, belongs to technical field of chemical detection.
Background technology
Colophonium is divided into gum rosin, wood rosin, Starex 3 kinds by its source.Gum rosin also referred to as loosens perfume (or spice), face
Color is shallow, and acid number is big, and softening point is high；Wood rosin is not so good as gum rosin also known as steam distilled rosin, quality, and color is deep, acid
It is worth little, and easily crystallizes from some solvent；Starex is also known as toll oil rosin.Colophonium is a kind of transparent, crisp
The solid natural resin of property, is more complicated mixture, by resinic acid (abietic acid, dextropimaric acid), a small amount of fat
The compositions such as fat acid, Colophonium anhydride and neutrals.Colophonium be mainly composed of resinic acid, account for about 90%, molecule
Formula is C19H29COOH, molecular weight 302.46.Resinic acid is most representative rosin acid, belongs to unsaturation
Acid, containing conjugated double bond, absorbs ultraviolet light strongly, in atmosphere can autoxidation or induction rear oxidation.Pine
Fragrant outward appearance is faint yellow to light brown, has a vitreous luster, band Oleum Terebinthinae abnormal smells from the patient, density 1.060～
1.085g/cm3.Fusing point 110～1 35 DEG C, softening point (ring and ball method) 72～76 DEG C, boiling point is about
300℃(0.67kPa).Vitrification point Tg-30～38 DEG C.Refractive index 1.5453.Flash-point (opening cup) 216 DEG C.
Burning-point about 480～500 DEG C.The most oxidizable.
Summary of the invention
For the problems referred to above, the assay method of a kind of Colophonium softening point that the present invention provides, this detection softening point
Quickly, labor intensity is little, easy and simple to handle.
For solving above-mentioned technical problem, the technical scheme that the present invention provides is as follows:
The assay method of a kind of Colophonium softening point, the method is to use SD-0606T type automatic softening point test instrument
Detection Colophonium softening point.
Further, the assay method of above-mentioned a kind of Colophonium softening point, described SD-0606T type is the softest
The method changing experimental tests instrument detection Colophonium softening point is to be separately filled with Colophonium in 2 copper rings, respectively by fixed
Position device is each on the Colophonium of ironing places 1 steel ball, opens instrument power source, carries out according to instrument display screen
Operation, enters measurement menu, presses " stirring " key and can start magnetic agitation, press " heating " key and i.e. carry out
Heating starts test；Instrument heats up by the speed of 5 DEG C+0.5 DEG C/min automatically, after waiting sample to soften under steel ball
Falling and automatically detected by instrument, after all detection is good, automatic printing test result also stops heating.
Compared with existing, the technical scheme that the present invention provides is quick with detection softening point, and labor intensity is little, behaviour
Make simplicity, and can be with METHOD FOR CONTINUOUS DETERMINATION different medium, the softening point of different temperatures scope, there is bigger survey
Amount temperature scope, in strict accordance with the programming rate of standard, and mixing speed and extremely short measurement week uniformly
Phase.Automatically detect reading, reduce error in reading, fully meet softening point in GB/T 8146-2003 (global
Method) mensuration requirement.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the claim of the present invention is described in further detail, but not
Constitute any limitation of the invention, any limited number of time done in the claims in the present invention protection domain
Amendment, still within the claims of the present invention.
Embodiment 1
The technical scheme that the present invention provides is to measure rosin by SD-0606T type automatic softening point test instrument to produce
The softening point of product, is separately filled with Colophonium in 2 copper rings of specific thickness and diameter, passes through localizer respectively
On the Colophonium of ironing, 1 definite quality of each placement and the steel ball of diameter, open instrument power source, according to instrument
Device display screen operates, and enters measurement menu, presses " stirring " key and can start magnetic agitation, by " adding
Heat " key i.e. carry out heating start test.Instrument heats up by the speed of 5 DEG C+0.5 DEG C/min automatically, waits sample
After softening, steel ball drop is detected automatically by infrared ray, and after all detection is good, automatic printing test result also stops
Heating, whole process takes 20-40min.
Described steel ball, diameter 9.4-9.6mm, quality 3.45g-3.55g, surface should be smooth, rustless.
The unspecified reagent of the present invention, parameter are all according to GB/T 8146-2003 " Test methods of rosin "
Involved method is carried out.
And GB GB/T 8146-2003 " Test methods of rosin ":
1) take Colophonium about in vessel, slowly add heat fusing；
2) melted Colophonium is noted people immediately lie in the annulus preheated on copper coin, treats that Colophonium solidifies completely,
Removing copper coin ring planted agent gently and be full of Colophonium, surface is the most protruding, presses with electric iron, in case inspection；
3) ready sample annulus is placed on ring stand plate, steel ball localizer is contained on annulus, then steel
Ball puts people's steel ball localizer center；
4) ring stand top cover inserts people's thermometer, makes bottom mercury ball with annulus bottom surface at grade, then will
Whole ring stand is put in people's 1000mL beaker, in the distilled water beaker of falling people that will newly boil, makes the upper of ring stand plate
Surface to the water surface keeps 51mm, after placing 10min, heats and makes water temperature rising per minute 3 DEG C, and constantly
Be sufficiently stirred for, make homogeneous temperature increase, until measuring complete.
From above-mentioned contrast it can be seen that the present invention provides quick with this device detection softening point, labor intensity is little,
Easy and simple to handle, and can be with METHOD FOR CONTINUOUS DETERMINATION different medium, the softening point of different temperatures scope, have bigger
Measure temperature range, in strict accordance with the programming rate of standard, and mixing speed and extremely short measurement uniformly
Cycle.Automatically detect reading, reduce error in reading, fully meet softening point (ring in GB/T 8146-2003
Ball) mensuration requirement.
Claims (2)
1. the assay method of a Colophonium softening point, it is characterised in that the method is to use SD-0606T type
Automatically softening point test instrument detection Colophonium softening point.
The assay method of a kind of Colophonium softening point the most according to claim 1, it is characterised in that described
SD-0606T type automatic softening point test instrument detection Colophonium softening point method be to fill respectively in 2 copper rings
Full Colophonium, places 1 steel ball by localizer is each on the Colophonium of ironing respectively, opens instrument power source,
Operate according to instrument display screen, enter measurement menu, press " stirring " key and can start magnetic agitation,
Press " heating " key i.e. carry out heating start test；Instrument heats up by the speed of 5 DEG C+0.5 DEG C/min automatically,
After softening on sample, steel ball drop is detected automatically by instrument, and after all detection is good, automatic printing test result is also
Stop heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610234520.8A CN105738401A (en) | 2016-04-14 | 2016-04-14 | Method for measuring softening point of rosin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610234520.8A CN105738401A (en) | 2016-04-14 | 2016-04-14 | Method for measuring softening point of rosin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105738401A true CN105738401A (en) | 2016-07-06 |
Family
ID=56255556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610234520.8A Pending CN105738401A (en) | 2016-04-14 | 2016-04-14 | Method for measuring softening point of rosin |
Country Status (1)
| Country | Link |
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| CN (1) | CN105738401A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817263A (en) * | 2017-09-11 | 2018-03-20 | 常州工学院 | A kind of rosin mellowness detection device |
| CN108535312A (en) * | 2018-04-13 | 2018-09-14 | 云南中烟工业有限责任公司 | A method of utilizing the headspace gas chromatography Accurate Determining rosin softening point of temperature programming |
| CN112014424A (en) * | 2020-08-04 | 2020-12-01 | 广西大学 | Method for measuring stability of rosin and resin acid thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223373A (en) * | 1998-01-16 | 1999-07-21 | 河南俊达石化检测技术研究所 | Asphalt softening point automatic test recording instrument by using ball and ring method |
| CN203443907U (en) * | 2013-08-01 | 2014-02-19 | 赵天源 | Asphalt softening point detecting device |
| CN104297283A (en) * | 2014-09-28 | 2015-01-21 | 广东惠利普路桥信息工程有限公司 | Softening point testing instrument for monitoring transmission data online |
-
2016
- 2016-04-14 CN CN201610234520.8A patent/CN105738401A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1223373A (en) * | 1998-01-16 | 1999-07-21 | 河南俊达石化检测技术研究所 | Asphalt softening point automatic test recording instrument by using ball and ring method |
| CN203443907U (en) * | 2013-08-01 | 2014-02-19 | 赵天源 | Asphalt softening point detecting device |
| CN104297283A (en) * | 2014-09-28 | 2015-01-21 | 广东惠利普路桥信息工程有限公司 | Softening point testing instrument for monitoring transmission data online |
Non-Patent Citations (3)
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| 吴责然: "环球法测定松香软化点测量不确定度评定", 《福建林业科技》 * |
| 文萍: "石油沥青软化点测定因素的探讨", 《当代化工》 * |
| 杜淑凤: "煤液化残渣软化点测定方法研究", 《洁净煤技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817263A (en) * | 2017-09-11 | 2018-03-20 | 常州工学院 | A kind of rosin mellowness detection device |
| CN108535312A (en) * | 2018-04-13 | 2018-09-14 | 云南中烟工业有限责任公司 | A method of utilizing the headspace gas chromatography Accurate Determining rosin softening point of temperature programming |
| CN108535312B (en) * | 2018-04-13 | 2021-02-02 | 云南中烟工业有限责任公司 | Method for accurately measuring softening point of rosin by utilizing programmed heating headspace gas chromatography |
| CN112014424A (en) * | 2020-08-04 | 2020-12-01 | 广西大学 | Method for measuring stability of rosin and resin acid thereof |
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Application publication date: 20160706 |