KR100893369B1 - Manufacturing process for Nonflammable blanket to prevent dust, fire, toxic gas and personal safety - Google Patents

Abstract

The present invention is to prepare a flame retardant compounded rubber composed of 100 parts by weight of polymer, 50-150 parts by weight of flame retardant, 2-10 parts by weight of active agent, 1-6 parts by weight of anti-aging agent, 0.1-5 parts by weight of accelerator, 1-7 parts of crosslinking agent The flame retardant compounded rubber layer is coated on the one or both sides of the base fabric by rolling in a calender and pressurized while heating the flame retardant compounded rubber layer and the base fabric to 125 ° C.-190 ° C. in a vulcanizing tube. It is a flame-retardant sheet obtained by carrying out crosslinking adhesion to the. According to the present invention, the flame retardant sheet is easily manufactured and manufactured at low cost, and satisfies the UL standard and the FMVSS302 regardless of the type of polymer, which is the base material of the flame retardant compounded rubber, and provides safety equipment that can faithfully protect the individual at the flame site. It can manufacture.

Flame Retardant Sheet, Flame Retardant Rubber

Description

Fire retardant hood and manufacturing method of personal safety equipment {Manufacturing process for Nonflammable blanket to prevent dust, fire, toxic gas and personal safety}

The present invention relates to a flame retardant hood and a manufacturing method of personal safety equipment. In detail, the present invention provides a hood flame retardant sheet which is a flame retardant elastic composite, and provides a hood for dustproof and protective by the flame retardant sheet. In addition to the hood, the hood fire retardant sheet of the present invention is a material such as an oxygen generating mask that protects an individual from a fire, a personal safety device including a gas mask, and a life preserver.

The hood material, which is a personal safety device used in a conventional fire and gas leakage disaster, is made of a sheet coated or rolled with natural rubber or synthetic fabric fabric with liquid rubber, rubber paste, thermoplastic resin, TPE (Thermoplastics elastomer), or the like. Such a conventional flame retardant sheet is problematic in flame retardancy and high cost. In flame retardant processing, in which liquid rubber and rubber glue are applied onto a fabric, a complicated process of laminating a multilayer coating layer on the fabric is a major cause of cost up. Thermoplastic and TPE coated fabrics do not meet the required flame retardancy.

Flame retardant specification: ASTM E162: Standard test method for surface flammability of material using a radiant heat energy source

ASTM E662: Standard test method for specific optical density of smoke generated by solid material

ASTM C1166: Standard test method for flame propagation of dense and cellular Elastomeric gasket and accessories.

SMP-800-C: Toxic gas generation

The present invention seeks to provide a flame retardant hood of personal safety equipment with excellent flame retardancy. The present invention seeks to provide a method of making a personal safety equipment flame retardant hood that is easy to manufacture and can be manufactured at low cost. The present invention is to provide a flame-retardant hood and a manufacturing method of a dustproof, protective personal safety equipment for obtaining a flame retardant effect by heating the carbonized layer is formed and the carbonized layer prevents the movement of flame. The present invention seeks to provide a flame retardant sheet that satisfies UL standards and FMVSS302, regardless of the type of polymer that is the base of the flame retardant compounded rubber. The present invention aims to provide a hood as a flame retardant sheet and a personal safety device having excellent flame retardancy that can faithfully protect an individual in a flame scene.

The present invention employs a process of compounding solid rubber into a flame retardant compounded rubber, and then applying a process of thinly coating the base fiber in a calender and crosslinking the flame retardant compounded rubber layer and the base fabric to reduce cost and stabilize high quality flame retardant sheet. This flame retardant sheet was designed to meet the requirements of UL94 V0 and ASTM E162, ASTM E662, ASTM C1166 and SMP-800-C.

This invention can be used in many fields as a flame retardant sheet in addition to a personal safety hood due to its very good flame retardancy.

Flame retardant sheet is an elastic composite of the present invention is prepared by applying a flame-retardant compounding rubber to the base fabric including natural fabrics, synthetic fiber fabrics and non-woven fabrics and applying heat and pressure to cross-link the fabric and the flame-retardant compounding rubber. This invention centers on the composition of a flame retardant, and the design and manufacture of a flame retardant compounding rubber. The flame retardant compounded rubber is cross-linked with the base fabric to maintain a stable adhesive state while maintaining flame retardancy at high temperature, so the self-adhesion and surface components (surface tension) of the flame retardant compounded rubber are important factors in the design of the flame retardant compounded rubber. The choice of the process of applying flame retardant rubber to textile based fabrics is also important. Textile fabrics are the base material of flame retardant sheets, and the tensile strength or flexibility of the fabric itself generally meets the requirements of this base material. It would be better if the fibers of the base fabric were flame retardant, but considering the price, the flame retardant fibers are not necessary in this invention.

In order to manufacture the flame retardant sheet of the present invention, first, a base fabric is selected, a flame retardant compounded rubber is prepared, a flame retardant compounded rubber is coated on the base fabric to a thickness of 0.08-3 mm, and the fabric and the flame retardant layer are cross-linked. The present invention is a flame-retardant sheet prepared in this way to cut and sew according to the structure and form of personal safety equipment to produce a personal safety equipment including a hood.

The invention is described in detail by component as follows.

I. Substrate Fabrics

Base fabric is the base material of the elastic composite sheet of the present invention. Fabrics usable in this invention can be freely selected within the range of 40-200 g / m 2. These fabrics are so versatile that they can be used if they are inexpensive and tough.

There is no need to specifically limit the fabric that can be used in the present invention, but the textile fabric may be synthetic fiber fabric, natural fiber fabric, nonwoven fabric or felt. Fiber fabrics use fabrics that are tough and not too thick or too thin. Wool or plush fabrics are not suitable because of their high price. Cotton fabrics, hemp fabrics, rayon fabrics, synthetic fiber fabrics and the like can be used throughout, and cotton fabrics and synthetic fiber fabrics are suitable for this invention.

II. Flame Retardant Compound Rubber

The flame retardant compounded rubber is prepared by mixing 100 parts by weight of a polymer, 50-150 parts by weight of a flame retardant, 2-10 parts by weight of an active agent, 1-6 parts by weight of an antioxidant, 0.1-5 parts by weight of an accelerator, and 1-7 parts by weight of a crosslinking agent.

The base polymer of the flame retardant compounded rubber can use both synthetic rubber and natural rubber. Chloroprene rubber (CR, Chloroprene), chlorosulfonylated polyethylene (Chlorosulphoneized polyethylene), chloropolyethylene (CPE, chloropolyethylene), NBR-PVC, etc. are preferable, and ordinary synthetic rubber can also be used. If natural rubber is used, it is necessary to use a large amount of flame retardant fillers and pay attention to weather resistance.

This invention is a flame retardant, inorganic flame retardants such as Mg (OH) ₂, Al (OH) ₃, antimony trioxide (Sb₂O₃), antimony pentoxide (Sb₂O), zinc borate, or paraffin chloride, Ammonium polyphosphate (APP), Tricresyl phosphate (TCP), Tris (2-chloroethyl) phosphate (TCEP), Tris (mono-chloroisopropyl) phosphate (TCPP), bromide-based organic flame retardant and the like are used. Lubricants, processing aids, accelerators, crosslinking agents and the like are used as additives.

The present invention produces a flame retardant compounded rubber by mixing the base polymer, flame retardant, lubricant as described above. The prepared flame retardant compounded rubber is heated and softened, rolled in a calender (Carlender, rolling mill), coated on one surface of the base fabric, and crosslinked and cured. The crosslinking curing is rolled on one or both sides of the base fabric in calender, and the flame retardant compounded rubber rolled sheet coated with the flame retardant compounded rubber with the sum thickness of 0.08-3mm on both sides is placed in the crosslinked pipe (crosslinking kiln, crosslinking tank), and is 125 ℃ -190 ℃. A cross-linking adhesive of the rolled flame retardant compounded rubber layer and the base fabric is preferably prepared by applying crosslinking heat (steam, hot air) and pressure (5-7 Kg / cm) at 140 ° C-160 ° C to prepare a flame retardant elastic composite sheet.

The two-step process of rolling and crosslinking as described above can be simultaneously processed rolling and crosslinking by rotocure (rotary curing press) treatment.

The elastic composite flame retardant sheet prepared as described above is used as a hood and fiber reinforced flame retardant composite material of personal protective equipment.

As described above, the present invention provides a personal safety equipment flame retardant hood having excellent flame retardancy and a method of manufacturing the same, and provides a method for manufacturing a personal safety gear flame retardant hood that can be easily manufactured at low cost and is heated to form a carbonized layer. It provides a fire retardant hood for personal safety equipment that has a flame retardant effect by preventing the movement of the flame and the carbonized layer, and a fire retardant hood for personal safety equipment that satisfies UL standard and FMVSS302 regardless of the type of polymer which is the base of the flame retardant compounded rubber. It provides a flame retardant hood that faithfully protects the safety of the individual in the actual flame scene.

Example 1

A flame retardant compounded rubber was prepared in the composition of Table 1.

Table 1. Flame Retardant Compound Rubber

material Parts by weight Remarks   S-40-V   100.00   Electrochemical Manufacturing (Japan)   MgO # 150   4.00   magnesium oxide   Stearin Mountain   0.50   DEG   2.00   diethylene glycol   Al (OH) 3  30.00   Alumminium hydroxide   Phyllite  10.00   Chunmaam   Zinc borate  15.00   Antimony trioxide  10.00   Sb₂O₃   Tricresyl phosphate (TCP)  15.00   Tricrecyl phosphate   Color  Quantity   NS-6   4.00   2.2'Methylene bis (4 methyl butyl phenol)   BHT   1.00   2.6 di-tert butyl-4-methylphenol   Na-22   0.50   2 mercapto methylphenol   MB   0.50   methyl imidazol   ZnO # 1   5.00   zinc oxide Total 197.5

Properties of the flame retardant compounded rubber of Table 1 are as follows.

      ◆ physical properties

      .Shore A: 45

      Gravity: 1.526

      Tensile strength (Kg / cm²): 95

      Elongation (%): 810

      ◆ Flame Retardant

       UL 94: V O

       FMVSS: Pass

       ASTM E162: Is 28

       ASTM E662 (Flame mode): Ds @ 1.5 Min (Ds1.5) = 18

                               Ds @ 4.0Min (Ds4.0) = 185

       SMP-800-C (BS-6853)

  Description   Result    Remark (Specs for SMP 800-C)   Carbon monooxide (CO ppm)   1273    3500   Carbon dioxide (CO₂ppm)   1250   90000   Nitrogen oxide (NO₂ppm)      3     100   Sulfur oxide (SO₂ppm)      6     100   Hydrogen chloride (HCL ppm)     41     500   Hydrogen fluoride (HF ppm)      3     100   Hydrogen bromide (HBr ppm)      One     100   Hydrogen Cyanide (HCN ppm)      5     100   Total

       ◆ Adhesion with fiber: Peel strength

      .Cotton: 7kg / cm²

      .Nylon: 11Kg / cm²

      ◆ other

      Weather resistance (50pphn x 96hr x 40 ℃ x 20% elongation)

      Ozone Resistance: No crack

Example 2

A flame retardant compounded rubber was prepared in the composition of Table 2.

  material   Parts by weight   Remarks   Elaslan 351 A  100.00   Chlorinated polyethylene   Mgo # 150   10.00   Magnesium oxide   White Carbon # 155   10.00   Silicate   PEG (DEG)    1.00   Polyethylene glycol   TiO₂   10.00   Titanium oxide   Phyllite   50.00   Chunmaam   Sb₂O₃   20.00   Antimony trioxide   Zinc borate   15.00   Paraffin Chloride # 45   15.00   Chloroparaffin   DOA   15.00   Dioctyl adipate   Pigment   Quantity   Pekadox 14-40   6.00   Di- (3-t-butylperoxypropyl) benzen   TAIC   2.00   triallylisocyanulate   Total 254.00

Properties of the flame retardant compounded rubber prepared in the composition of Table 2 are as follows.

      ◆ Physical properties

      .Hardness (Shore A): 50

      Tensile strength (Kg / cm²): 105

      Elongation (%): 550

      ◆ Flame Retardant Characteristics:

      UL94: V 0

      .FMVSS: Pass

      .ASTM E162: Pass

      .ASTM E662: Pass

      .SMP-800-C: Pass

      ◆ Adhesion with fiber: Peel strength

      .Cotton: 7kg / cm²

      .Nylon: 11Kg / cm²

      ◆ Other

      Weather resistance (50pphn x 96hr x 40 ℃ x 20% elongation)

      Ozone Resistance: No crack

       SMP-800-C (BS-6853)

  Description   Result    Remark (Specs for SMP 800-C)   Carbon monooxide (CO ppm)   1273    3500   Carbon dioxide (CO₂ppm)   1250   90000   Nitrogen oxide (NO₂ppm)      3     100   Sulfur oxide (SO₂ppm)      6     100   Hydrogen chloride (HCL ppm)     41     500   Hydrogen fluoride (HF ppm)      3     100   Hydrogen bromide (HBr ppm)      One     100   Hydrogen Cyanide (HCN ppm)      5     100   Total

      Example 3

A flame-retardant compounded rubber was prepared with the composition combining the materials of Table 3.

  material   Composition ratio (parts by weight)   Remarks   Polymer  NBR  EPDM  NR  SBR  100  100  100  100   Stearic acid    One    One    One    One   ZnO    4    4    4    4   Reinforcement   20   20   20   20   Silicate, carbon black   Softener   10   10   10   10   process oil, plasticizer   Flame Retardant Combination (Table 4)   65   65   65   65   Anti-aging    2    2    4    4   PA, D, 3C, RD, MB   accelerant    3    5    2    3.5   TT, TS, DM, BZ, EZ, D, Na-22   brimstone    1.5    1.5    2.3    2.3   Colloid sulfur, insoluble sulfur

Flame retardant combinations of Table 3 are shown in Table 4.

Table 4 Combinations of Flame Retardants

  material   Composition ratio (%)   Remarks   Ammonium poly phosphate   50    The flame retardant combination is blended at 65 parts by weight in the Table 3 formulation table.   Mono pentaerihtritol   20   Melamine resine   20   Urea   15   Total  100

The flame retardant of Table 4 exhibits flame retardant properties by heat (fire), in which polyol (Erithritol), salt (Ammonium polyphosphate (APP)) and melamine react to form a carbonized layer, which prevents the movement of flame.

Table 4 Flame Retardant

UL 94 test: V0

.FMVSS: Pass

The flame retardant elastic composite flame retardant sheet of the present invention was prepared using the flame retardant of Table 4. Regardless of the type of polymer used, UL and FMVSS were satisfied.

Claims (6)

In the one side of the base fabric is coated with a flame-retardant rubber made of a polymer and a flame retardant, Base polymers of any one or more of natural rubber, synthetic rubber, chloroprene (CR), chlorosulfonated polyethylene (CPE), chloropolyethylene (CPE), and NBR-PVC including flame retardant fillers (base polymer) 100 parts by weight; Inorganic flame retardants including Mg (OH) ₂, Al (OH) ₃, antimony trioxide (Sb₂O₃), antimony pentoxide (Sb₂O), zinc borate, paraffin chloride, Ammonium polyphosphate (APP), Tricresyl phosphate (TCP) 50-150 parts by weight of at least one of Tris (2-chloroethyl) phosphate (TCEP), Tris (mono-chloroisopropyl) phosphate (TCPP), and bromide-based organic flame retardant; 2-10 parts by weight of active agent; 1-6 parts by weight of anti-aging agent; 0.1-5 parts by weight of accelerator; 1-7 parts of crosslinking agent; To produce flame retardant rubber; On a calendar, one side of a base fabric weighing 40-200 g / m 2 was coated with a flame retardant rubber 0.08-3 mm thick; A flame-retardant sheet was prepared by crosslinking the flame-retardant compounded rubber layer and the base fabric by applying a temperature of 125 ° C.-190 ° C. and a pressure of 5-7 Kg / cm 2 in a cross-linking tube; Flame retardant hood of personal safety equipment made from flame retardant sheets manufactured in this way. In the one side of the base fabric is coated with a flame-retardant rubber made of a polymer and a flame retardant, Base polymers of any one or more of natural rubber, synthetic rubber, chloroprene (CR), chlorosulfonated polyethylene (CPE), chloropolyethylene (CPE), and NBR-PVC including flame retardant fillers (base polymer) 100 parts by weight; Inorganic flame retardants including Mg (OH) ₂, Al (OH) ₃, antimony trioxide (Sb₂O₃), antimony pentoxide (Sb₂O), zinc borate, paraffin chloride, Ammonium polyphosphate (APP), Tricresyl phosphate (TCP) 50-150 parts by weight of at least one of Tris (2-chloroethyl) phosphate (TCEP), Tris (mono-chloroisopropyl) phosphate (TCPP), and bromide-based organic flame retardant; 2-10 parts by weight of active agent; 1-6 parts by weight of anti-aging agent; 0.1-5 parts by weight of accelerator; 1-7 parts of crosslinking agent; To produce flame retardant rubber; Fire retardant rubber on both sides of the base fabric weighing 40-200 g / m 2 with a combined thickness of 0.08-3 m on the calendar; A flame-retardant sheet was prepared by crosslinking the flame-retardant compounded rubber layer and the base fabric by applying a temperature of 125 ° C.-190 ° C. and a pressure of 5-7 Kg / cm 2 in a cross-linking tube; Flame retardant hood of personal safety equipment made from flame retardant sheets manufactured in this way. The flame retardant hood according to claim 1 or 2, wherein the flame retardant is a carbonized layer-forming flame retardant. (delete) In the manufacturing method of applying a flame-retardant rubber made of a polymer and a flame retardant on one side of the base fabric, Base polymers of any one or more of natural rubber, synthetic rubber, chloroprene (CR), chlorosulfonated polyethylene (CPE), chloropolyethylene (CPE), and NBR-PVC including flame retardant fillers (base polymer) 100 parts by weight; Inorganic flame retardants including Mg (OH) ₂, Al (OH) ₃, antimony trioxide (Sb₂O₃), antimony pentoxide (Sb₂O), zinc borate, paraffin chloride, Ammonium polyphosphate (APP), Tricresyl phosphate (TCP) 50-150 parts by weight of at least one of Tris (2-chloroethyl) phosphate (TCEP), Tris (mono-chloroisopropyl) phosphate (TCPP), and bromide-based organic flame retardant; 2-10 parts by weight of active agent; 1-6 parts by weight of anti-aging agent; 0.1-5 parts by weight of accelerator; 1-7 parts of crosslinking agent; Preparing a flame retardant rubber composition; Coating flame retardant rubber with a thickness of 0.08-3 m on both sides on one or both sides of the base fabric weighing 40-200 g / m 2 on a calendar; Preparing a flame retardant sheet by crosslinking the flame retardant compounded rubber layer and the base fabric by applying a temperature of 125 ° C. to 190 ° C. and a pressure of 5-7 Kg / cm 2 in a crosslinking tube; Method of manufacturing a flame retardant personal safety equipment hood comprising the step of making a flame retardant hood of personal safety equipment with the flame-retardant sheet prepared as described above. The method of claim 5, A method of manufacturing a flame retardant personal safety equipment hood, characterized in that the step of coating a flame-retardant compounded rubber layer on one or both sides of the base fabric and crosslinking and bonding the flame-retardant compounded rubber layer to the base fabric in a rotocure.