CN106323857A - Measuring device and measuring method of glass fiber water resistance - Google Patents

Measuring device and measuring method of glass fiber water resistance Download PDF

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CN106323857A
CN106323857A CN201610856859.1A CN201610856859A CN106323857A CN 106323857 A CN106323857 A CN 106323857A CN 201610856859 A CN201610856859 A CN 201610856859A CN 106323857 A CN106323857 A CN 106323857A
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water
container
peristaltic pump
glass fibre
pipe
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CN106323857B (en
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周琴
李勇
王玉梅
王佳庆
师卓
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Nanjing Fiberglass Research and Design Institute Co Ltd
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Nanjing Fiberglass Research and Design Institute Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
    • G01N5/04—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/0014—Type of force applied
    • G01N2203/0016—Tensile or compressive
    • G01N2203/0017—Tensile

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)

Abstract

The invention discloses a measuring device and a measuring method of glass fiber water resistance. The measuring device of the glass fiber water resistance comprises a first peristaltic pump, a first water conveying pipe, a first heater, a first container, a second water conveying pipe, a second peristaltic pump, a third water conveying pipe, a second heater, a second container, a fourth water conveying pipe and a third peristaltic pump. The method for measuring the glass fiber water resistance is characterized in that a glass fiber test sample is put into boiling water; through controlling the sample quantity, the boiling water volume and the boiling water displacement rate, the alkaline corrosion influence is eliminated; the effect of water on the glass fiber is enabled to be always hydrolysis reaction; finally, the glass fiber water resistance is evaluated through measuring the mass loss rate or the monofilament tensile fracture strength retention rate. The measuring method has the advantages of short test time, operation simplicity, good repeatability and the like.

Description

The determinator of a kind of glass fibre resistance to water and assay method
Technical field
The present invention relates to determinator and the assay method of a kind of glass fibre resistance to water, belong to detection field.
Background technology
The use environment of glass fibre is inevitable water or steam, and therefore glass fibre resistance to water is to need to consider Key factor.Reasonably evaluation glass fibre change under water environment will assist in and instructs using and opening of glass fiber product Send out.For the mensuration of glass fibre resistance to water, the most not yet have been reported that.Conventional glass or vial, such as plate glass and transfusion Bottle, its resistance to water measures GB/T6584-1997 " glass is in the granule test method of 98 DEG C of resistances to water and classification ", its process side Method be certain sample in quantitative changeless water, heat certain time, test generated alkali.But glass fibre is the most not Preferably using the method, reason is that glass specific surface area is far smaller than glass fibre, contact with water its ion especially alkalescence from Sub-amount of precipitation is also far smaller than glass fibre, and glass fibre measures according to the method for glass resistance to water, and water environment can be because of hydrolysis The carrying out of reaction and become alkalescence, and then there is further caustic corrosion, its measurement result can not be defined as merely resistance to water. Therefore, it is necessary to set up a kind of suitably assay method, for assessing the quality of different glass fiber resistance to water.
Summary of the invention
The most relative to soda acid to glass fibre corrosion for water, cold test is the longest, it addition, glass fibre Cationic is easily caused water environment with hydrion generation exchange in water and changes, and single boiling test cannot accurately reflect it The problem of resistance to water quality, the invention provides a kind of accuracy high, simple to operate, can be used for the mensuration of glass fibre resistance to water Device and assay method.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is as follows:
A kind of determinator of glass fibre resistance to water, including the first peristaltic pump, the first water-supply-pipe, primary heater, One container, the second water-supply-pipe, the second peristaltic pump, the 3rd water-supply-pipe, secondary heater, second container, the 4th water-supply-pipe and the 3rd Peristaltic pump；First container is placed on primary heater；Second container is placed on secondary heater；First peristaltic pump, the second wriggling Outlet and water inlet it is provided with respectively on pump and the 3rd peristaltic pump；First water-supply-pipe one end and the outlet on the first peristaltic pump Connection, the other end stretch into inside the first container；Second water-supply-pipe one end is stretched into inside the first container, the other end and the second peristaltic pump Water inlet connection；3rd water-supply-pipe one end connects with the outlet of the second peristaltic pump, the other end stretches into inside second container；The Four water-supply-pipe one end are stretched into inside second container, the connection of the outlet of the other end and the 3rd peristaltic pump.
In order to reduce cost, convenient operation, the first container is flask, and second container is beaker.
The application the first container purpose is to persistently provide boiling water to second container.
The introducing of water in first container for convenience, first water-supply-pipe one end connects with the outlet on the first peristaltic pump, The other end stretches into the first container inside and is positioned at the tip position of the first container.
The extraction of water and the introducing of water in second container in first container for convenience, second water-supply-pipe one end stretches into first The water inlet connection of container inner bottom part, the other end and the second peristaltic pump；3rd water-supply-pipe one end and the outlet of the second peristaltic pump Connection, the other end stretch into second container inner bottom part.
In order to reduce cost, convenient operation, primary heater and secondary heater are adjustable electric furnace.
The use of the determinator of above-mentioned glass fibre resistance to water, comprises the steps:
A. before experiment, first each for device assembly is put up, prepare sufficient experimental water the water inlet with the first peristaltic pump Connection, is heated to boiling by filling water in flask, and in flask, the first water-supply-pipe (being used for intaking) is placed in bottleneck, and the second water-supply-pipe (is used In water outlet) insert in boiling water；
B. second water-supply-pipe (for water outlet) of flask is inserted to bottom reaction beaker as far as possible, reaction beaker the 4th water-supply-pipe (for water outlet) tries one's best close to upper liquid level；
The most each adjustable electric furnace all open to high temperature with keep water be fluidized state, regulate peristaltic pump flow, it is ensured that turnover the water yield Water in the cup pH value≤7.0 are burnt in consistent and holding.
Said apparatus when thoroughly solving tested glass fiber resistance to water incident because of hydrolysis produce environmental change enter And cause caustic corrosion, thus cause the problem that test result can not react resistance to water.Additionally, said apparatus is easier, operable Property is strong.
Utilize the method that the determinator of above-mentioned glass fibre resistance to water measures glass fibre resistance to water, including connected in order Following steps:
(1) the first container and second container will add water respectively, and boil, and continue respectively with primary heater and second Heater heating makes water in the first container and second container keep micro-boiling；
(2) glass fibre is removed wetting agent；
(3) being placed in the boiling water in second container by step (2) gained glass fibre, stirring makes glass fibre uniformly divide Dissipate, and react 6h ± 10min, course of reaction regulates the first peristaltic pump, the second peristaltic pump and the water velocity of the 3rd peristaltic pump, Make pH value≤7.0 in second container；
(4) step (3) gained material is cooled to room temperature；
(5) by step (4) gained material sintered filter sucking filtration, wash, be dried, be cooled to room temperature, calculating matter of weighing Amount loss rate or mass per surface area loss amount, and/or measure filament stretch ultimate strength calculating filament stretch ultimate strength Retention rate.
During mensuration, in advance glass fibre in step (2) is cut into segment.In step (3) during reaction, the water in second container Keep boiling or slight boiling condition.Step preferably quickly cools down with frozen water in (4).In step (5), sintered filter needs constant weight in advance, Washing is for washing 2-7 time with hot water (water of >=50 DEG C).Step (5) filament stretch ultimate strength measures and advises with reference to GB/T 31290 Fixed method.The micro-boiling of the application may also be boiling.
Water in first container and second container is heated to boiling by step (1) in advance, is in order to glass fibre is made with water With the unification of condition, make glass fibre fully dispersed simultaneously and ensure that glass fibre completely attaches to water.
Water is boiling flowing to use first, second, and third peristaltic pump and the first and second heaters to guarantee in said method State, keeps the pH value of water in second container to be not more than 7.0, ensures that glass fibre with the effect of water is all the time by said method Hydrolysis, it is to avoid water environment can change because of the carrying out of hydrolysis.
In order to improve the feasibility of mensuration further, removing wetting agent method in step (2) is first to use acetone soak, then nothing Water-ethanol cleans；In step (3), glass fibre is 1:(250-350 with the mass ratio of boiling water in second container).
Above-mentioned acetone also can use other organic solvents that polarity is higher.
In order to improve the accuracy of mensuration further, step (5) is dried in the thermostatic drying chamber of 105 DEG C ± 2 DEG C, It is dried to constant weight, then moves into and exsiccator is cooled to room temperature.
During above-mentioned calculating filament stretch breaking strength retention, need to take after glass fibre is removed wetting agent by step (2) Two parts of samples, a sample carries out step (3)-(5) successively and measures filament stretch ultimate strength F afterwards2, another sample directly measures Filament stretch ultimate strength F1, filament stretch breaking strength retention δ is
In order to improve the accuracy of mensuration further, the method measuring glass fibre resistance to water includes connected in order as follows Step:
(1) the first container and second container will add water respectively, and boil, and continue respectively with primary heater and second Heater heating makes water in the first container and second container keep micro-boiling；
(2) continuous fiber is cut into the long section of 250mm, removes wetting agent, then cut a length of 100mm ± 0.5mm's Segment, is dried to constant weight, then takes two kinds of samples, respectively A kind sample and B kind sample in gained fiber；
(3) quality weighing B kind sample is m (g), and is placed in the boiling water in second container by B kind sample, and stirring makes glass Glass fiber is dispersed, and reacts 6h ± 10min, regulates the first peristaltic pump, the second peristaltic pump and the 3rd wriggling in course of reaction The water velocity of pump, makes pH value≤7.0 in second container, wherein, the 3rd water-supply-pipe one end and the outlet of the second peristaltic pump Connection, the other end stretch into second container inner bottom part；4th water-supply-pipe one end is stretched in second container under liquid level and as far as possible close to liquid The outlet connection of face (2-8mm under liquid level), the other end and the 3rd peristaltic pump；
(4) step (3) gained material is cooled to room temperature；
(5) by step (4) the gained material sintered filter sucking filtration of constant weight, hot wash fiber 3 times～4 simultaneously Secondary, the quality of the sintered filter of constant weight the most is m1(g)；
(6) sintered filter with sample of step (5) gained is placed in the thermostatic drying chamber of 105 DEG C ± 2 DEG C dry Dry to constant weight, move in exsiccator and be cooled to room temperature, weigh, be designated as m2(g), mass loss mass loss rate ω or unit Mass loss amount ωARepresent, mass per surface area loss amount ωANeed measured in advance glass fiber density ρ (g/m3), diameter d (μ And length L (mm) m):
ω = ( m + m 1 ) - m 2 m × 100 % - - - ( 1 )
ω A = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 g / m 2 - - - ( 2 )
(7) monofilament of A kind sample and the B kind sample through step (3)-(6) is measured according to the regulation of GB/T 31290 Big tensile load, is designated as filament stretch ultimate strength, and the filament stretch ultimate strength of A kind sample is F1, through step (3)-(6) The filament stretch ultimate strength of B kind sample be F2, per sample (p.s.) measures no less than 20 data, then takes its meansigma methods, then Filament stretch breaking strength retention δ is:
δ = F 2 F 1 × 100 % - - - ( 3 ) .
The long section of step (1) 250mm, about 20g,
The method removing wetting agent in step (1) is: is placed in by fiber and fills having of acetone or other solubilized wetting agent In machine solvent, seal and soak no less than 24 hours, then use absolute ethanol washing 3 times～4 times.
In order to improve the accuracy of mensuration, above-mentioned A kind sample and B kind sample can take more than 2 parts respectively, and A kind sample is not Need the reaction that is hydrolyzed, namely after step (2) samples, directly measure filament stretch ultimate strength.
In above-mentioned steps (3), pH value timing can sample tracking at the water outlet of the 3rd peristaltic pump, if pH value is bigger than normal, The water velocity that can accelerate peristaltic pump is tested again.
The unit of above-mentioned quality is g.
The NM technology of the present invention is all with reference to prior art.
The present invention can be used for the determinator of glass fibre resistance to water and assay method has been filled up glass fibre resistance to water and surveyed Fixed blank, has the testing time advantage such as well short, simple to operate, repeated；The present invention is by using peristaltic pump and heating Device guarantees that water is boiling flow regime, and keeps pH value when glass fibre and water effect to be not more than 7.0, it is ensured that glass fibre with The effect of water is hydrolysis all the time, and test result accurate characterization is resistance to water；Glass fibre is cut into segment in advance further, can During effectively preventing from weighing, glass fibre is at random causes test error；Low cost needed for the present invention, realizability is strong.
Accompanying drawing explanation
Fig. 1 is the structural representation of the determinator of glass fibre resistance to water of the present invention.
In figure, 1 first peristaltic pump, 2 first water-supply-pipes, 3 first adjustable electric furnaces, 4 flasks, 5 second water-supply-pipes, 6 second compacted Dynamic pump, 7 the 3rd water-supply-pipes, 8 second adjustable electric furnaces, 9 beakers, 10 the 4th water-supply-pipes, 11 the 3rd peristaltic pumps, 12 glass fibre, 13 For water inlet, 14 for water outlet.
Detailed description of the invention
In order to be more fully understood that the present invention, it is further elucidated with present disclosure below in conjunction with embodiment, but the present invention Content is not limited solely to the following examples.
As it is shown in figure 1, the determinator of glass fibre resistance to water used in each embodiment, including the first peristaltic pump, first Water-supply-pipe, the first adjustable electric furnace, flask, the second water-supply-pipe, the second peristaltic pump, the 3rd water-supply-pipe, the second adjustable electric furnace, beaker, 4th water-supply-pipe and the 3rd peristaltic pump；Flask is placed on the first adjustable electric furnace；Beaker is placed on the second adjustable electric furnace；First wriggles Outlet and water inlet it is provided with respectively on pump, the second peristaltic pump and the 3rd peristaltic pump；Wriggle with first in first water-supply-pipe one end Outlet connection on pump, the other end stretch into flask interior and are positioned at the entrance location of flask；Second water-supply-pipe one end is stretched into The water inlet connection of flask inner bottom part, the other end and the second peristaltic pump；3rd water-supply-pipe one end and the outlet of the second peristaltic pump Connection, the other end stretch into inner bottom of beaker portion；4th water-supply-pipe one end is stretched into inside beaker, the other end and the water outlet of the 3rd peristaltic pump Mouth connection.
Utilize the method that the determinator of above-mentioned glass fibre resistance to water measures glass fibre resistance to water, including connected in order Following steps:
(1) flask and beaker will add water respectively, and boil, and continue respectively by the first adjustable electric furnace and the second adjustable electric Stove heating makes flask and burns the water in the cup micro-boiling of holding；
(2) continuous fiber is cut into the long section of 250mm, about 20g, is placed in and fills in 700mL acetone, seal immersion 26 little Time, then use absolute ethanol washing 4 times, then cut the segment of a length of 100mm, be dried to constant weight, then at gained fiber In take two kinds of samples, respectively A kind sample and B kind sample；
(3) quality weighing B kind sample is m (g), and the boiling water (600mL, pH6～7) being placed in beaker by B kind sample In, stirring makes glass fibre dispersed, and reacts 6h, regulates the first peristaltic pump, the second peristaltic pump and the 3rd in course of reaction The water velocity of peristaltic pump, makes pH value≤7.0 in beaker, wherein, the 3rd water-supply-pipe one end and the outlet of the second peristaltic pump Connection, the other end stretch into inner bottom of beaker portion；4th water-supply-pipe one end is stretched under the liquid level in beaker and as far as possible close to liquid level (liquid level Lower 5mm), the outlet connection of the other end and the 3rd peristaltic pump；
(4) step (3) gained material is cooled to room temperature；
(5) by step (4) the gained material sintered filter sucking filtration of constant weight, 60 DEG C of hot wash fibers 4 times simultaneously, The quality of the sintered filter of constant weight the most is m1(g)；
(6) sintered filter with sample of step (5) gained is placed in the thermostatic drying chamber of 105 DEG C ± 2 DEG C dry Dry to constant weight, move in exsiccator and be cooled to room temperature, weigh, be designated as m2(g), mass loss mass loss rate ω or unit Surface area mass loss amount ωARepresent, mass per surface area loss amount ωANeed measured in advance glass fiber density ρ (g/m3), Diameter d (μm) and length L (mm):
ω = ( m + m 1 ) - m 2 m × 100 % - - - ( 1 )
ω A = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 g / m 2 - - - ( 2 )
(7) monofilament of A kind sample and the B kind sample through step (3)-(6) is measured according to the regulation of GB/T 31290 Big tensile load, is designated as filament stretch ultimate strength, and the filament stretch ultimate strength of A kind sample is F1, through step (3)-(6) The filament stretch ultimate strength of B kind sample be F2, per sample (p.s.) measures no less than 20 data, then takes its meansigma methods, then Filament stretch breaking strength retention δ is:
δ = F 2 F 1 × 100 % - - - ( 3 ) .
Embodiment 1
The mensuration of medium-alkali glass fibre resistance to water, medium-alkali glass fibre used (CC13-4800), originates from Maanshan City flying dragon Glass fiber composite material company limited, its density is 2.54g/m3, a diameter of 15 μm；B kind sample takes two parallel samples, and quality is divided Wei m=1.9283g and m '=2.3293g；In step (5), the sintered filter of constant weight is respectively m1=94.7317g, m1’ =90.3650g；Step (6) is dried the sintered filter to constant weight and the quality of sample and respectively m2=96.6537g, m2’ =92.6863g；The flow velocity of the Inlet and outlet water of the first peristaltic pump, the second peristaltic pump and the 3rd peristaltic pump is 40mL/min；
B kind sample takes the mass loss rate of two parallel samples and is respectively as follows:
ω = ( m + m 1 ) - m 2 m × 100 % = 1.9283 + 94.7317 - 96.6537 1.9283 × 100 % = 0.327 %
ω ′ = ( m + m 1 ) - m 2 m × 100 % = 2.3293 + 90.3650 - 92.6863 2.3293 × 100 % = 0.343 %
Mass per surface area loss amount is respectively as follows:
ω A = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 = ( 1.9283 + 94.7317 - 96.6537 ) × 2.54 × 100 × 15.0 4 × 1.9283 × 100 + 2 × 1.9283 × 15.0 × 10 - 3 = 3.114 g / m 2
ω A ′ = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 = ( 2.3293 + 90.3650 - 92.6863 ) × 2.54 × 100 × 15.0 4 × 2.3293 × 100 + 2 × 2.3293 × 15.0 × 10 - 3 = 3.267 g / m 2
(2) filament stretch ultimate strength data are recorded as follows:
In monitoring reaction course, the pH value of water is 6.30～6.40.
Embodiment 2
The mensuration of alkali-free glass fibre resistance to water, alkali-free glass fibre used (E150-2400), originating from Shanghai Le can Guan Ye Company limited, its density is 2.6g/m3, a diameter of 23.9 μm；B kind sample takes two parallel samples, and quality is respectively m= 2.3242g and m '=2.0041g；In step (5), the sintered filter of constant weight is respectively m1=93.9554g, m1'= 93.2446g；Step (6) is dried the sintered filter to constant weight and the quality of sample and respectively m2=96.2693g, m2'= 95.2400g；The flow velocity of the Inlet and outlet water of the first peristaltic pump, the second peristaltic pump and the 3rd peristaltic pump is 30mL/min；
B kind sample takes the mass loss rate of two parallel samples:
ω = ( m + m 1 ) - m 2 m × 100 % = 2.3242 + 93.9554 - 96.2693 2.3242 × 100 % = 0.443 %
ω ′ = ( m + m 1 ) - m 2 m × 100 % = 2.0041 + 93.2446 - 95.2400 2.0041 × 100 % = 0.434 %
Mass per surface area loss amount is respectively as follows:
ω A = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 = ( 2.3242 + 93.9554 - 96.2693 ) × 2.60 × 100 × 23.9 4 × 2.3242 × 100 + 2 × 2.3242 × 23.9 × 10 - 3 = 6.622 g / m 2
ω A ′ = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 = ( 2.0041 + 93.2446 - 95.2400 ) × 2.60 × 100 × 23.9 4 × 2.0041 × 100 + 2 × 2.0041 × 23.9 × 10 - 3 = 6.741 g / m 2
(2) filament stretch ultimate strength data are recorded as follows:
In monitoring reaction course, the pH value of water is 6.60～6.70.
Embodiment 3
The mensuration of alkali-resistant glass fibre resistance to water, alkali-resistant glass fibre used (ARC13-2400), originates from Pei County Hua Yingbo Glass fiber factory, its density is 2.8g/m3, a diameter of 13.2 μm；B kind sample takes two parallel samples, and quality is respectively m= 2.0254g and m '=2.0013g；In step (5), the sintered filter of constant weight is respectively m1=94.7236g, m1'= 93.9583g；Step (6) is dried the sintered filter to constant weight and the quality of sample and respectively m2=96.7254g, m2'= 95.9565g；The flow velocity of the Inlet and outlet water of the first peristaltic pump, the second peristaltic pump and the 3rd peristaltic pump is 30mL/min；
B kind sample takes the mass loss rate of two parallel samples:
ω = ( m + m 1 ) - m 2 m × 100 % = 2.0254 + 94.7236 - 96.7454 2.0254 × 100 % = 0.178 %
ω ′ = ( m + m 1 ) - m 2 m × 100 % = 2.0013 + 93.9583 - 95.9565 2.0013 × 100 % = 0.155 %
Mass per surface area loss amount is:
ω A = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 = ( 2.0254 + 94.7236 - 96.7454 ) × 2.80 × 100 × 13.2 4 × 2.0254 × 100 + 2 × 2.0254 × 13.2 × 10 - 3 = 1.645 g / m 2
ω A ′ = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 = ( 2.0013 + 93.9583 - 95.9565 ) × 2.80 × 100 × 13.2 4 × 2.0013 × 100 + 2 × 2.0013 × 13.2 × 10 - 3 = 1.432 g / m 2
(2) filament stretch ultimate strength data are recorded as follows:
In monitoring reaction course, the pH value of water is 6.40～6.50.
Glass fibre can produce hydrolysis with water after contacting, in fiberglass surfacing polar group meeting bound water molecule Hydrogen, in glass fibre network structure, the cation such as sodium, calcium also exchanges with the hydrogen generation ion in hydrone.The degree of hydrolysis The physics of glass fibre, chemical property can be had a strong impact on.Due to hydrolysising by-product hydroxyl meeting heavy corrosion glass fibre, therefore The Accurate Determining of glass fibre resistance to water is depended on the stability of water, a kind of glass fibre that the application sets up in mensuration environment The assay method of resistance to water, has reasonably evaded the by-product impact on glass fibre caustic corrosion, and has used filament stretch fracture Strength retention and mass loss can well symbolize the quality of dissimilar glass fibre resistance to water.Hydrolysis is to glass fibers The impact of dimension is the biggest, and mass loss is the biggest, and filament stretch breaking strength retention is the least, and the application method is fixed not than traditional After the water boil become, the Water Resistance Test method of mass metering loss is more scientific, more accurate, such as: the medium-alkali glass fibre matter in example Amount loss rate is 0.33%, filament stretch breaking strength retention is 86.06%, and uses traditional changeless decocting in water 4h Rear mass loss rate is 1.01%, filament stretch breaking strength retention is 78.30%, the pH=10 of water, and traditional method is described Can not evade caustic corrosion impact, test result deviation is bigger, it is impossible to the water resistance of glass fibre is accurately described.In a word, this Shen Please the measuring glass fibre resistance to water device and can maintain stable aqueous environment of method design, it is ensured that glass fibre contacts with water Time only there is hydrolysis, use mass loss rate, mass per surface area loss amount and filament stretch breaking strength retention Can accurately embody the quality of glass fibre water resistance.

Claims (10)

1. the determinator of a glass fibre resistance to water, it is characterised in that: include the first peristaltic pump, the first water-supply-pipe, first Heater, the first container, the second water-supply-pipe, the second peristaltic pump, the 3rd water-supply-pipe, secondary heater, second container, the 4th water delivery Pipe and the 3rd peristaltic pump；First container is placed on primary heater；Second container is placed on secondary heater；First peristaltic pump, Outlet and water inlet it is provided with respectively on second peristaltic pump and the 3rd peristaltic pump；On first water-supply-pipe one end and the first peristaltic pump Outlet connection, the other end stretches into inside the first container；Second water-supply-pipe one end is stretched into inside the first container, the other end and The water inlet connection of two peristaltic pumps；3rd water-supply-pipe one end connects with the outlet of the second peristaltic pump, the other end stretches into the second appearance Inside device；4th water-supply-pipe one end is stretched into inside second container, the connection of the outlet of the other end and the 3rd peristaltic pump.
2. the determinator of glass fibre resistance to water as claimed in claim 1, it is characterised in that: the first container is flask, the Two containers are beaker.
3. the determinator of glass fibre resistance to water as claimed in claim 1 or 2, it is characterised in that: first water-supply-pipe one end Connect with the outlet on the first peristaltic pump, the other end stretches into the first container inside and is positioned at the tip position of the first container.
4. the determinator of glass fibre resistance to water as claimed in claim 1 or 2, it is characterised in that: second water-supply-pipe one end Stretch into the water inlet connection of the first container inner bottom part, the other end and the second peristaltic pump；3rd water-supply-pipe one end and the second peristaltic pump Outlet connection, the other end stretch into second container inner bottom part.
5. the determinator of glass fibre resistance to water as claimed in claim 1 or 2, it is characterised in that: primary heater and the Two heaters are adjustable electric furnace.
6. the determinator utilizing the glass fibre resistance to water described in claim 1-5 any one measures glass fibre resistance to water Method, it is characterised in that: include following steps connected in order:
(1) the first container and second container will add water respectively, and boil, and continue respectively with primary heater and the second heating Device heating makes water in the first container and second container keep micro-boiling；
(2) glass fibre is removed wetting agent；
(3) being placed in the boiling water in second container by step (2) gained glass fibre, stirring makes glass fibre dispersed, and Reaction 6h ± 10min, regulates the first peristaltic pump, the second peristaltic pump and the water velocity of the 3rd peristaltic pump in course of reaction, make the PH value≤7.0 in two containers；
(4) step (3) gained material is cooled to room temperature；
(5) by step (4) gained material sintered filter sucking filtration, washing, be dried, be cooled to room temperature, calculating quality of weighing is damaged Mistake rate, and/or mass per surface area loss rate, and/or measure the calculating tension failure strength reservation of filament stretch ultimate strength Rate.
7. the method measuring glass fibre resistance to water as claimed in claim 6 is characterized in that: removes wetting agent in step (2) Method is first to use acetone soak, then washes of absolute alcohol；In step (3), glass fibre with the mass ratio of boiling water in second container is 1:(250-350).
The method measuring glass fibre resistance to water the most as claimed in claims 6 or 7 is characterized in that: is dried in step (5) and is In the thermostatic drying chamber of 105 DEG C ± 2 DEG C, it is dried to constant weight, then moves into and exsiccator is cooled to room temperature.
The method measuring glass fibre resistance to water the most as claimed in claims 6 or 7 is characterized in that: calculates filament stretch fracture During strength retention, need to take two parts of samples after glass fibre is removed wetting agent by step (2), a sample walks successively Suddenly (3)-(5) measure filament stretch ultimate strength F afterwards2, another sample directly measures filament stretch ultimate strength F1, filament stretch Breaking strength retention δ is
The method measuring glass fibre resistance to water the most as claimed in claims 6 or 7 is characterized in that: includes connected in order Following steps:
(1) the first container and second container will add water respectively, and boil, and continue respectively with primary heater and the second heating Device heating makes water in the first container and second container keep micro-boiling；
(2) continuous fiber is cut into the long section of 250mm, removes wetting agent, then cut the segment of a length of 100mm ± 0.5mm, It is dried to constant weight, in gained fiber, then takes two kinds of samples, respectively A kind sample and B kind sample；
(3) quality weighing B kind sample is m (g), and is placed in the boiling water in second container by B kind sample, and stirring makes glass fibers Tie up dispersed, and react 6h ± 10min, course of reaction regulates the first peristaltic pump, the second peristaltic pump and the 3rd peristaltic pump Water velocity, makes pH value≤7.0 in second container, wherein, the 3rd water-supply-pipe one end connects with the outlet of the second peristaltic pump, The other end stretches into second container inner bottom part；2-8mm, the other end and the 3rd under liquid level are stretched in second container in 4th water-supply-pipe one end The outlet connection of peristaltic pump；
(4) step (3) gained material is cooled to room temperature；
(5) by step (4) the gained material sintered filter sucking filtration of constant weight, the water of simultaneously >=50 DEG C washs fiber 3 times～4 Secondary, the quality of the sintered filter of constant weight the most is m1(g)；
(6) sintered filter with sample of step (5) gained is placed in the thermostatic drying chamber of 105 DEG C ± 2 DEG C be dried to Constant weight, moves in exsiccator and is cooled to room temperature, weighs, is designated as m2(g), mass loss mass loss rate ω or unit mass Loss amount ωARepresent, mass per surface area loss amount ωANeed measured in advance glass fiber density ρ (g/m3), diameter d (μm) with And length L (mm):
ω = ( m + m 1 ) - m 2 m × 100 % - - - ( 1 )
ω A = ( m + m 1 - m 2 ) ρ L d 4 m L + 2 m d × 10 - 3 g / m 2 - - - ( 2 )
(7) the regulation mensuration A kind sample according to GB/T 31290 and the monofilament maximum through the B kind sample of step (3)-(6) are drawn Stretching load, be designated as filament stretch ultimate strength, the filament stretch ultimate strength of A kind sample is F1, through the B of step (3)-(6) The filament stretch ultimate strength planting sample is F2, per sample (p.s.) measures no less than 20 data, then takes its meansigma methods, then monofilament Tension failure strength retention δ is:
δ = F 2 F 1 × 100 % - - - ( 3 ) .
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