SU1254355A1 - Method of testing specimens of polymeric moulding materials which are reinforced by fibres - Google Patents
Method of testing specimens of polymeric moulding materials which are reinforced by fibres Download PDFInfo
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- SU1254355A1 SU1254355A1 SU853867902A SU3867902A SU1254355A1 SU 1254355 A1 SU1254355 A1 SU 1254355A1 SU 853867902 A SU853867902 A SU 853867902A SU 3867902 A SU3867902 A SU 3867902A SU 1254355 A1 SU1254355 A1 SU 1254355A1
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- fibers
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- destruction
- press material
- extraction
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Изобретение относитс к испытательной технике и позвол ет повысить информативность способа путем дополнительного определени адгезионной прочности волокон с пресс-материалом при разрушении образцов с помощью ма тникового копра. При изготовлении образцов армированных пластиков волокна укладывают таким образом, что длина волокна раздел етс угловой плоскостью разрушени образца на части в соотношении не более . При разрушении образцов на. ма тниковом копре наблюдают частичное или полное извлечение волокон из пресс-материала или отсутствие извлечени волокон. Измер ют длину е извлеченных волокон и средние значени oi , ct ударной в зкости соответственно образцов , при разр тпении которых произошло извлечение волокон из пресс-материала , и образцов, при разрушении которых извлечени волокон не произошло . Среднее значение адгезионной прочности в д рассчитывают по формз ле д 6, (t«- п )п/ сл .4; со СП О1The invention relates to a test technique and makes it possible to increase the information content of the method by further determining the adhesion strength of the fibers with the press material during the destruction of the samples with the help of a master frame. In the manufacture of specimens of reinforced plastics, the fibers are laid in such a way that the fiber length is divided by the angular plane of breaking the sample into parts in a ratio of not more. With the destruction of samples on. A partial or complete extraction of the fibers from the press material or the absence of extraction of the fibers is observed in the pile collector. The length e of the extracted fibers and the average values oi, ct of the impact toughness, respectively, of the samples, during the discharge of which the fibers were removed from the press material, and of the samples, during the destruction of which the fibers did not occur, are measured. The average value of adhesion strength in d is calculated by formm d 6, (t "- n) n / sl.4; with SP O1
Description
Изобретение относитс к испытательной технике, а именно к способам испытани образцов полимерных пресс-материалов , армированных волокнами.The invention relates to a testing technique, and specifically to methods for testing samples of polymer materials made of fibers reinforced.
Цель изобретени - повьшение информативности способа путем дополнительного изучени адгезионной прочности волокон с пресс-материалом при разрушении образца с помощью ма тникового копра.The purpose of the invention is to increase the informativity of the method by further studying the adhesion strength of the fibers with the press material when the sample is destroyed with an erect copra.
Способ осуществл ют следующим образом.The method is carried out as follows.
Изготавливают одним из известных пособов партию одинаковых образцов з полимерного пресс-материала, ар- ированного волокнами. При этом прозвод т целенаправленное армирование ресс-материала волокнами в плоскости .предполагаемого разрушени за счет несимметричного но длине образца расположени волокон относительно плоскости разрушени . Волокна укладьгвают в образце так, что длина волокна раздел етс угловой плоскостью разрушени образца на части в соотношении на более 1:3, Из;Готовленные образцы поочередно устанавливают на держатель ма тникового копра и прикладывают к ник разрушающук нагрузку. При разрушении образцов наблюдают частичное или полное извлечение волокон из пресс-материала, или отсутст- вне извлечени волокон, Измер ют общую длину извлеченньгх волокон и определ ют среднее значение d- удар- ной в зкости по величине работы, затраченной на разрушение образцов, при разрушении которых произошло извлечение волокон из пресс-материала, и среднее зн:ачение oi ударной в зкостк образцов, при разрушении которых извлечени волокон не произошло.A batch of identical samples of a polymeric press material reinforced with fibers is made by one of the known tools. In this case, purposeful reinforcement of the ress material with fibers in the plane of the intended destruction is produced due to the arrangement of the fibers relative to the plane of destruction, which is asymmetric but the sample length. The fibers are laid in the sample in such a way that the fiber length is divided by the angular plane of destruction of the sample into parts in a ratio of more than 1: 3. From; The prepared samples are alternately mounted on the taller's holder and a load is applied to the destructive force. When samples are destroyed, partial or complete extraction of fibers from the press material is observed, or no fibers are removed. The total length of the extracted fibers is measured, and the average value of d-impact viscosity is determined by the amount of work expended on the destruction of samples. which resulted in the extraction of fibers from the press material, and the mean value: oi impact of shock in specimen samples, with the destruction of which the extraction of fibers did not occur.
Среднее значение адгезионной проч- ности 6 определ ют по формуле.The average adhesion strength value 6 is determined by the formula.
: . (5- - i ::- tt-i-2:. (5- - i :: - tt-i-2
« - I "- I
где п - количество образцов, при раз- 50 рушении которых произошлоwhere n is the number of samples at which destruction has occurred
извлечение волокон из пресс- материала ,extraction of fibers from the press material
ВНИИПИ Заказ 4712/46VNIIPI Order 4712/46
Произв.-полигр, пр-тие, г, Ужгород, ул. Проектна , 4Production polygr, pr-tie, g, Uzhgorod, st. Project, 4
пример. Изготовили партию образцов в количестве 10 шт, из термореактивного пресс-материала, содержащего измельченную древесину (57-60%),example. A batch of 10 samples was manufactured from a thermosetting press material containing ground wood (57-60%),
измельченное капроновое волокно (15-17%), св зующее ЛВС 3 (25-26%), уротропин (0,15%) и уксусную кислоту (0,05-0,06%), армированного си тети- ческ1 1и волокиам.и на 2,3 высоты образцов . Образцы.выдерживали под давлением 40 МПа, После разрушени образцов на ма тниковом копре их разделили на две партии. Получи.гги 22 образца, у которых при разрушенииground nylon fiber (15–17%), binding LAN 3 (25–26%), methenamine (0.15%), and acetic acid (0.05–0.06%) reinforced with synthetic fiber. and 2.3 heights of samples. The specimens were kept under a pressure of 40 MPa. After the destruction of the specimens on a ribbed jack, they were divided into two batches. Get. 22 specimens, which at destruction
произошло извлечение волокон изfiber was extracted from
пресс-материала, и 18 образцов, у которых извлечение волокон отсут- ствовало. Измерили общую длину извлеченных волокон и определили по удар- ной в зкости разрушени образцов адгезионную прочность волокон с пресс- материалом, котора составила 17,1 Ша„a press material, and 18 samples in which fiber extraction was absent. The total length of the extracted fibers was measured and the adhesive strength of the fibers with a press material was determined by the impact strength of the specimen destruction, which was 17.1 ° C
2525
Фор мула изобретени Formula of invention
Способ испытани образцов поли- мерных пресс-материалов, армирован- ных волокнами, основанный на опреде- Ленин ударной в зкости образцов по величине работы, затраченной на |разрушение их с ПОМОЕДЬЮ ма тниковогоThe method of testing samples of polymeric press materials reinforced with fibers, based on the determination of the impact strength of the samples by the amount of work expended on | destroying them with the help of the
копра, отличающийс тем, что, с Целью повышени информативности способа путем дополнительного изучени адгезионной прочности волокон с пресс-материалом, определ ют средние значени dL. . «.„ ударной в зкости соответственно образцов, приCopra, characterized in that, in order to increase the informativeness of the method by further studying the adhesive strength of the fibers with the press material, the average values of dL are determined. . "." Impact strength, respectively, of samples,
разрушении которых произошло извлече- ние волокон из материала, и образцов, при разрушении которых извлечени волокон не произошло, измер ют общую длину извлеченных волокон и определ ют среднее значение адгезионнойthe destruction of which the fibers were removed from the material, and the samples, the destruction of which did not remove the fibers, measure the total length of the extracted fibers and determine the average value of the adhesive
прочности форМУЛВstrength MULVA
& &
(oio.- ) -п(oio.-) -n
п - количество образцов, приn is the number of samples, with
разрушении которых произошло извлечение волокон из материала,the destruction of which was the extraction of fibers from the material
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SU853867902A SU1254355A1 (en) | 1985-02-15 | 1985-02-15 | Method of testing specimens of polymeric moulding materials which are reinforced by fibres |
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SU853867902A SU1254355A1 (en) | 1985-02-15 | 1985-02-15 | Method of testing specimens of polymeric moulding materials which are reinforced by fibres |
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SU1254355A1 true SU1254355A1 (en) | 1986-08-30 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4856342A (en) * | 1987-04-09 | 1989-08-15 | Bayer Aktiengesellschaft | Process and device for measuring the adhesion of fibres in fibre-reinforced synthetic materials |
-
1985
- 1985-02-15 SU SU853867902A patent/SU1254355A1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4856342A (en) * | 1987-04-09 | 1989-08-15 | Bayer Aktiengesellschaft | Process and device for measuring the adhesion of fibres in fibre-reinforced synthetic materials |
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