SU693141A1

SU693141A1 - Method of preparing samples for investigating adhesiveness of protective powdersof roofing materials

Info

Publication number: SU693141A1
Application number: SU772499853A
Authority: SU
Inventors: Алексей Михайлович Воронин; Вячеслав Викторович Иванов
Priority date: 1977-06-23
Filing date: 1977-06-23
Publication date: 1979-10-25

Description

(54) СПОСОБ ПОДГОТОВКИ ОБРАЗЦОВ ДЛЯ ИССЛЕДОВАНИЯ АДГЕЗИОННОЙ СПОСОБНОСТИ ЗАЩИТНЫХ ПОСЫПОК КРОВЕЛЬНЫХ МАТЕРИАЛОВ(54) METHOD FOR PREPARING SAMPLES FOR THE STUDY OF ADHESION ABILITY OF PROTECTIVE BATTERIES OF ROOFING MATERIALS

Изобретение относитс к подготовке образцов дл исследовани , в том числе дл определени адгезионной способности защит ных посыпок кровельных материалов при воздействии температурных перепадов и атмосферных осадков.The invention relates to the preparation of samples for investigation, including the determination of the adhesiveness of protective coatings on roofing materials when exposed to temperature changes and precipitation.

Известен способ изготовлени образцов дл определени адгезионной способности армирующего элемента к св зующему из полимерного материала, заключающ.ийсй в приклеивании армирующего элемента к св зующему путем нанесени полимерного материала на цластину и погружении в него армирующего элемента 1.A known method of making samples for determining the adhesion ability of a reinforcing element to a binder of a polymeric material consists in gluing the reinforcing element to a binder by depositing a polymeric material on the plate and immersing the reinforcing element 1 in it.

Однако период испытани с помощью этого способа продолжителен.However, the test period using this method is long.

Известен способ подготовки образцов дл исследовани адгезионной способности защитных посыпок кровельных материалов например рубероида, при атмосферных воздействи х , включающий нанесение компонента материала - св зующего - на подложку и приклейку к нему посыпки. При длительном воздействии перепада температур и влаги часть посыпки тер етс . После проведени испытани образцы вырезают изA known method of preparing specimens for examining the adhesion of protective coatings for roofing materials such as roofing felt, under atmospheric conditions, involves applying a component of the material — the binder — to the substrate and gluing it to it. With prolonged exposure to temperature and moisture, part of the dressing is lost. After testing, samples are cut out from

полотнища рубероида и по количеству потер нной посыпки суд т о прочности сцеплени ее с кровельным материалом 2.sheets of roofing material and by the amount of lost dressing judge its strength with roofing material 2.

Однако дл этого способа характерны длительный период испытани и неточность определени адгезионной способности защит ного покрыти - посыпки.However, this method is characterized by a long test period and the inaccuracy of determining the adhesiveness of the protective coating - dressing.

Целью изобретени вл етс сокращение времени испытани образца и повыщение точности определени адгезионной способности .The aim of the invention is to reduce the test time of the sample and to increase the accuracy of the adhesion test.

По предлагаемому способу перед приклеиванием посыпку в виде пластин нагревают до температуры плавлени св зующего и между св зующим и посыпкой по контуруIn the proposed method, before gluing, the spreading in the form of plates is heated to the melting temperature of the binder and between the binder and sprinkling along the contour.

5 последней прокладывают растворимый в исследуемой среде материал, например водорастворимую бумагу. Пластины могут быть5 last lay soluble material in the test medium, for example, water-soluble paper. Plates can be

изготовлены из стекла. .made of glass. .

Claims

Example. Mineral dressing cut out in the form of a plate of asbestos rock. A layer of bitumen applied to the coating layers of roofing material is applied onto the primed cement-sand tiles, then thin filter paper with holes measuring 10x10 mm is laid on the surface of the bitumen and the plates heated to the melting point of the bitumen are placed on them. After the plates have cooled down, the paper between them is removed by placing the sample in water. Prepared samples are moistened and cycled with negative and positive temperatures. After 70 cycles, the adhesion of the plates, measured by an adhesiometer, is reduced by 1.8 times. Using the proposed method of making samples allows one to study the process of exfoliation of the dressing under the influence of temperature difference and moisture, to conduct comparative studies of various dressings and choose from them the most suitable for roofing materials, which will contribute to increasing the durability of roofs. Claim 1. Sample preparation method for examining the adhesiveness of protective dressings of roofing materials under atmospheric effects, including applying a bonding roofing material to a substrate and gluing to it a plate dressing, characterized in that, in order to shorten the test time of the sample and increase accuracy of adhesion determination; before gluing, the sprinkling is heated to the melting temperature of the binder and between the binder and sprinkling along the contour of the latter is laid astvorimy material in the assay medium. 2. A method according to claim 1, characterized in that the plates are made of glass. Sources of information taken into account in the examination 1. USSR author's certificate number 493694, cl. G 01 N 19/04, 1975.

2. Report of Central Research Institute of Industrial Buildings No. 584-36-76 Research of improved roofing roofing materials with ozon-resistant polymer films and new types of protective dressings.