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Low-smoke halogen-free flame-retardant gum-dipped elastic cloth and preparation method thereof

A technology of elastic cloth and rubber dipping, which is applied in the preparation of low-smoke, halogen-free, flame-retardant, dipped elastic cloth, and in the field of low-smoke, non-halogen, flame-retardant, dipped elastic cloth, which can solve the problem of weak resistance to external force, oxygen barrier and sealing Problems such as loss of characteristics, generation of pores, etc., to achieve the effect of not being easy to break, not demanding equipment requirements, and ensuring full performance

Inactive Publication Date: 2012-10-03
CHANGZHOU YUHONG SPECIAL PRINTING MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent solution can embody the technical effect mentioned in the last paragraph on page 2 of the specification, but objectively has the following shortcomings: First, because the skeleton material is made of ordinary polyester staple fiber braid, the flame retardancy and mechanical properties are limited ; Second, the halogen-free low-smoke flame-retardant adhesive formula does not contain elastic polymers, and the surface of the cable tape is prone to stress concentration and pores during use, resulting in the loss of oxygen barrier and sealing properties
[0005] In addition, the "glass fiber flame-retardant silicone cloth and its manufacturing method" provided by the authorized announcement number CN101886339B, this patent scheme can objectively reflect the technology summarized in paragraph 0024 of the specification effect, but because the glass fiber cloth as the base material is obtained by the weaving method of weaving, the elasticity of the product is lacking. If it is used as a wire and cable wrapping cloth (belt), the ability to resist external force is relatively fragile, easy to damage and Creation of porosity leading to loss of oxygen barrier and sealing properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Low-smoke halogen-free flame-retardant gum-dipped elastic cloth and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] please see figure 1 , this example is based on the preparation figure 1 The low-smoke, halogen-free, flame-retardant dipped elastic cloth with the structure shown is taken as an example.

[0026] ) to prepare the dipping solution, first introduce 20 g of polyethylene glycol, 10 g of polyurethane, 300 g of dimethyl sulfoxide and 10 mg of polysiloxane emulsion with a concentration of 30% by weight, which are weighed in parts by weight. Stir in the reaction kettle of the stirrer at a heating temperature of 90°C and a stirring speed of 500n / min for 120min. After cooling, add an inorganic flame retardant, Al(OH), weighed by weight. 3 100g, Mg(OH) 2 40g and SiO 2 20g and then stirred for 30min evenly, the rotating speed of the stirrer was 1500n / min, to obtain the dipping solution;

[0027] B) Dipping, first introduce the dipping liquid obtained in step A) from the reaction kettle into the dipping tank, and then use the weft plain glass fiber cloth obta...

Embodiment 2

[0029] A) To prepare the dipping solution, first introduce 10g of polyethylene glycol, 10g of polyurethane, 100g of dimethyl sulfoxide and 2mg of polysiloxane emulsion with a concentration of 30% by mass, which are weighed in parts by weight. Stir in a reactor with a stirrer at a heating temperature of 100°C and a stirring speed of 800n / min for 180min. After cooling, add an inorganic flame retardant, Al(OH), weighed by weight. 3 80g was further stirred for 60min evenly, and the rotating speed of the stirrer was 1000n / min to obtain the dipping solution;

[0030] B) Dipping, first introduce the dipping liquid obtained in step A) from the reaction kettle into the dipping tank, and then use the polyester nonwoven fabric obtained from high-strength flame-retardant polyester fiber as raw material and spunlace method as the flame-retardant fiber base cloth 1. Pass through the dipping liquid in the dipping tank at a speed of 20m / min, and pass between the paired coating rollers ...

Embodiment 3

[0032] A) To prepare the dipping solution, first introduce 40g of polyethylene glycol, 60g of polyurethane, 500g of dimethylformamide and 20mg of polysiloxane emulsion with a concentration of 30% by mass, which are weighed in parts by weight. Stir in a reactor with a stirrer at a heating temperature of 80°C and a stirring speed of 200n / min for 300min. After cooling, add an inorganic flame retardant, Al(OH), weighed by weight. 3 100g, Mg(OH) 2 100g, CaCO 3 50g and SiO 2 50g was further stirred for 45min evenly, and the rotating speed of the stirrer was 2000n / min to obtain the dipping solution;

[0033] B) Dipping, first introduce the dipping liquid obtained in step A) from the reaction kettle into the dipping tank, and then use the high-strength flame-retardant nylon fiber as raw material and the weft-plain nylon fabric obtained by weaving knitting and weft-knitting technology as flame-retardant The fiber base cloth 1 passes through the dipping solution in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses low-smoke halogen-free flame-retardant gum-dipped elastic cloth and a preparation method of the cloth, and belongs to the technical field of special fabrics. The low-smoke halogen-free flame-retardant gum-dipped elastic cloth comprises flame-retardant fiber base cloth and a flame-retardant layer bonded onto the two side surfaces of the flame-retardant fiber base cloth, wherein the flame-retardant fiber base cloth is prepared by knitting or non-weaving high-strength flame-retardant polyester fibers, high-strength flame-retardant nylon fibers or glass fibers, and the flame-retardant layer comprises the following raw materials by weight: 80-300 g of flame retardant, 20-100 g of polymer, 100-500 g of solvent and 2-20 mg of defoamer. The low-smoke halogen-free flame-retardant gum-dipped elastic cloth has excellent flame retardance and outstanding strong force capable of being against the influence of an external force, is not easily broken and has ideal elasticity and softness as well as sealing and oxygen isolating effects; and the process steps in the provided method are short and have no strict requirements on equipment, so that the technical effect of the low-smoke halogen-free flame-retardant gum-dipped elastic cloth can be guaranteed, and the industrial large-scale production requirements can be met.

Description

technical field [0001] The invention belongs to the technical field of special fabrics, and in particular relates to a low-smoke, halogen-free, flame-retardant, rubber-dipped elastic cloth, and also relates to a preparation method of the low-smoke, halogen-free, flame-retardant, rubber-dipped elastic cloth. Background technique [0002] The low-smoke, halogen-free and flame-retardant impregnated cloth mentioned above is mainly, but not limited to, used as wrapping tapes for wires and cables. and fire protection. [0003] As we all know, in building fire accidents, the probability caused by wires and cables accounts for nearly 40%. In particular, about two-thirds of the casualties in fire accidents are caused by secondary injuries. The poisonous and harmful gas released by the cable during the burning process suffocates and dies. Therefore, the flame retardancy of wires and cables has always been concerned by people. [0004] Low-smoke halogen-free flame-retardant cables n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): B32B27/02B32B27/36B32B27/34B32B17/02B32B27/06B32B27/18B32B27/30B32B27/28B32B27/40D06M15/333D06M15/53D06M15/256D06M15/564D06M11/45D06M11/44D06M11/76D06M11/79C03C25/42
Inventor 李红
Owner CHANGZHOU YUHONG SPECIAL PRINTING MATERIALS
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