RU2117736C1 - Fibrous base for composite insulating and/or roofing material - Google Patents

Abstract

FIELD: construction engineering. SUBSTANCE: this particularly relates to production of fibrous nonwoven base for composite and/or roofing materials. Fibrous base in given case contains nonwoven mineral material which is made up of longitudinal, lateral, and inserting threads. Used as nonwoven mineral material is combination knitting and inserting material based on glass and basaltic threads with mass ratio of threads being equal to (1.0-3.5):1.0 respectively. In addition, used as longitudinal threads are complex threads, and used as lateral threads are basaltic twisted complex threads, and used as inserting threads are glass twisted complex threads. In this case, ratio of longitudinal threads and lateral threads as to mass is respectively equal to 1.0:1.0, and mass ratio of longitudinal threads and inserting threads is respectively equal to 0.4:1.0. Aforesaid arrangement increases relative lengthening of material at alternating temperature loads. EFFECT: higher efficiency. 5 cl

Description

 The invention relates to the construction, namely the production of a fibrous non-woven base for composite insulation and / or roofing materials.

 Known combination fabric used for the production of insulating materials. The fabric is formed by the interweaving of warp and weft yarns made of glass complex twisted yarns and basalt twisted complex yarns [1].

 A disadvantage of the known fabric is the high cost of woven material.

 Closest to the claimed invention is a fibrous base for composite insulation and / or roofing material, containing non-woven mineral material, consisting of longitudinal, transverse and piercing threads, described in the method of manufacturing composite insulation and / or roofing material [2].

 The disadvantages of the prototype are the low relative elongation at alternating loads and the high cost of the material.

 The objective of the present invention is to eliminate the disadvantages of the prototype.

 The problem is solved due to the fact that the known fibrous base for composite insulating and / or roofing material containing non-woven mineral material, consisting of longitudinal, transverse and piercing threads, as a non-woven mineral material contains a combined knitting-piercing material based on glass and basalt threads with a mass ratio of threads of respectively 3.5 - 1.0: 1.0.

 In addition, in a fibrous basis, glass complex threads were used as longitudinal threads, basalt twisted complex threads were used as transverse threads, glass twisted complex threads were used as broaching threads.

 In this case, the mass ratio of longitudinal and transverse threads is 10: 1.0, respectively, the mass ratio of longitudinal and piercing threads is 0.4: 1.0, respectively.

The technical result from the use of the invention is to increase the relative elongation of the material of the fibrous structure during the operation of composite and / or roofing materials under conditions of alternating temperature loads (from -40 to +70 ^o C) due to the use of combined glass-basalt materials. Naturally, this improves the quality of the material as a whole due to a decrease in crack resistance, and increases its service life.

 Examples of specific performance.

 Example 1

 For the preparation of a fibrous base, glass composite yarns of the brand BC 13-120 with a linear density of 120 tex and a strength of 0.45 kN were used as longitudinal threads. As transverse threads, basalt twisted multifilament threads of the NB 11 - 68 x 1/50 / linear density 68 tex type with a twist of 50 cr / m and a strength of 0.36 kN were used. Glass stranded multifilament yarns of the brand BC 7-22 x 1 x 2/120) with a linear density of 44 tex with a twist of 120 cr / m and a strength of 0.15 kN were used as broaching threads. The ratio of glass and basalt fibers in the fibrous base by weight was 3.5: 1.0, the ratio of longitudinal and transverse threads was 1.1: 1.0, respectively, and the ratio of longitudinal and piercing threads was 0.4: 1.0, respectively. The fibrous base was developed from these yarns on knitting and piercing machines of the Malimo brand.

 Example 2

 It was carried out analogously to example 1, but as longitudinal threads used basalt multifilament yarns of the grade NB 13-120 with a linear density of 120 tex, strength 0.4 kN, and transverse strands used glass multifilament threads of the brand BS 13-64 with a linear density of 64 tex, strength 0 , 3 kN, as stitched yarns - glass twisted multifilament yarns of March BS 7-22 x 1 x 2/120 - linear density 44 tex with a twist of 120 cr / m, strength 0.15 kN. The ratio of glass and basalt fibers in the fibrous base by weight was 3X2: 1.0, respectively, the ratio of longitudinal and transverse threads was 0.9: 1.0, respectively, and the ratio of longitudinal and piercing threads was 0.39 - 1.0, respectively.

 Example 3

 It was carried out analogously to example 1, but as longitudinal threads used basalt multifilament yarns grade HB 11-120 with a linear density of 120 tex, strength 0.47 kN, as transverse threads used basalt twisted multifilament strands grade NB 11-68 x 1 x 2/50 / linear density 68 text with a twist of 50 cr / m, strength 0.35 kN, as piercing threads - glass twisted multifilament threads of the brand BC 7-22x1x2 / 120 / linear density 44 tex with a twist of 120 cr / m, strength 0.15 kN The ratio of glass and basalt fibers in the fibrous base by weight was 1.0: 1.0, respectively, the ratio of longitudinal and transverse threads was 1.0: 1.0, respectively, and the ratio of longitudinal and piercing threads was 0.4: 1.0, respectively.

Claims (6)

 1. A fibrous base for composite insulation and / or roofing material, containing a non-woven mineral material, consisting of longitudinal, transverse and piercing threads, characterized in that a combined knitting and piercing material based on glass and basalt threads with a bulk the ratio of threads, respectively (1.0 - 3.5): 1.0.  2. The fibrous base according to claim 1, characterized in that the glass strands are used as longitudinal threads.  3. The fibrous base according to claim 1, characterized in that as the transverse threads used basalt twisted multifilament yarn.  4. The fibrous base according to claim 1, characterized in that glass twisted multifilament yarns are used as piercing threads.  5. The fibrous base according to claim 1, characterized in that the mass ratio of longitudinal and transverse threads is 1.0: 1.0, respectively.  6. The fibrous base according to claim 1, characterized in that the mass ratio of longitudinal and piercing threads is respectively 0.4: 1.0.