Non-sticky high-friction-coefficient high polymer material, non-woven fabric composite material and application of non-woven fabric composite material

A high friction coefficient, polymer material technology, applied in the field of non-woven composite materials, non-stick high friction coefficient polymer materials, can solve the problems of slippage, poor wear resistance, and the inability to form a uniform single phase by thermal compounding

Active Publication Date: 2015-08-19
SUZHOU ADDISON NONWOVEN PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are also anti-slip materials on the market. By adding high friction coefficient materials, such as ethylene elastomers, to the polyethylene film layer to increase the anti-slip properties, but because polyethylene and polypropylene are different polymers, thermal compounding cannot form a uniform single phase. The molecules are not entangled with each other, and the interface of the two polymers is only combined by weak van der Waals force, and the bonding strength is small
There are also composite fabrics bonded with hot melt adhesive. Due to changes in temperature and pressure during material sterilization and use, the hot glue in the middle layer will leak into the outermost layer of the non-woven fabric, making the folded layer and layer of the material Adhering to each other, it is difficult to unfold during surgery, and the leaked glue sticks to foreign objects, and there is a risk of cross-infection during surgery
[0005] At present, the materials on the market have the above-mentioned defects, and the application is subject to many restrictions. Therefore, it is urgent to develop a material that is not viscous and has a high friction coefficient, so as to solve the problems of adhesion of foreign matter, poor wear resistance, and poor slip resistance of products currently on the market. Disadvantages such as easy sliding and slipping

Method used

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  • Non-sticky high-friction-coefficient high polymer material, non-woven fabric composite material and application of non-woven fabric composite material
  • Non-sticky high-friction-coefficient high polymer material, non-woven fabric composite material and application of non-woven fabric composite material
  • Non-sticky high-friction-coefficient high polymer material, non-woven fabric composite material and application of non-woven fabric composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] refer to figure 1 It is a non-adhesive high friction coefficient single-layer film material disclosed by the present invention, 101 is a film containing isotactic polypropylene macromolecule and derivatives, composed of: isotactic copolymer polypropylene elastomer with a weight ratio of 60%, 38% Polyethylene, 2% antistatic agent; thickness 30um. The flow rate parameter of the isotactic copolymerized polypropylene elastomer in this example is 6.0. According to ASTM D1894, the measured COF is 1.25, compared with existing materials in the market and other examples as shown in Table 1.

[0033] The present embodiment adopts cast extrusion process, see Figure 9 , the operation steps are as follows:

[0034] (1) take raw materials in weighing area 103 by proportioning,

[0035] (2) Inhale the weighed raw material in the high-speed mixer 104,

[0036] (3) Inhale the mixed raw materials in the extruder hopper 105,

[0037] (4) The raw materials are melted and mixed throu...

Embodiment 2

[0040] Adopt embodiment 1 formula, adopt blown film extrusion process, see Figure 10 , the operation steps are as follows:

[0041] (1) take raw materials in weighing area 103 by proportioning,

[0042] (2) Inhale the weighed raw material in the high-speed mixer 104,

[0043] (3) Inhale the mixed raw materials in the extruder hopper 105,

[0044] (4) The raw materials are melted and mixed in the extruder 106 and passed through the annular die 107. The temperature of the die is controlled at 150-250° C., and extruded

[0045] Tubular thin bubble 108, the cylindrical thin bubble is cooled by cooling roller 109, and the tubular film 111 is obtained, and the tubular film is drawn

[0046] The flattening roller 112 is rewound by the rewinding device 113, and the tubular film can be single-cut, double-cut or cut when rewinding simultaneously.

[0047] Do not dissect.

Embodiment 3

[0049] refer to figure 2 It is a non-adhesive high friction coefficient double-layer film material disclosed by the present invention, and the film thickness is 30um. 101 is a film containing isotactic polypropylene macromolecule and its derivatives, composed of: isotactic copolymer polypropylene elastomer with a weight ratio of 60%, 38% polyethylene, 2% antistatic agent; the thickness is 30um. The flow rate parameter of isotactic copolymerized polypropylene elastomer in this example is 6.0. 201 is polyethylene film. Tested separately according to ASTM D1894 Figure 2-10 1 surface and Figure 2-2 Measured on the surface of layer 01, the COFs are 1.25 and 0.30, respectively. It is compared with existing products in the market and other embodiments as shown in Table 1.

[0050] In this embodiment, a double-layer casting machine is adopted, and the casting and extrusion process is the same as that in Example 1.

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Abstract

The invention relates to a non-sticky high-friction-coefficient high polymer material, a non-woven fabric composite material and application of the non-woven fabric composite material. The non-sticky high-friction-coefficient high polymer material is characterized in that (a) isotatic polypropylene macromolecules and / or isotatic polypropylene derivatives are contained; (b) the flow speed parameters of isotatic polypropylene macromolecules and / or isotatic polypropylene derivatives are 5-15. According to the high polymer material, the disadvantages of traditional medical sizing shoe covers that the wear resistance and the skid resistance are poor, rubber easily falls off and is adhered with foreign matters, procedures are complex, and the cost is high can be solved, and the traditional medical rubber shoe covers are mutually adhered due to poor high temperature resistance; an anti-skid part further has the characteristics of high temperature resistance and no stickiness. The non-sticky high-friction-coefficient high polymer material, a membrane prepared from the non-sticky high-friction-coefficient high polymer material and the composite material can be applied to the fields of families, agriculture, industry, medicines and the like and can be used as operative towels, operative tablecloth, beautifying towels, automotive anti-skid mats, toilet bowl mats, stacking packaging bags, storage rack exhibition table boards, and the like.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a non-adhesive macromolecular material with a high friction coefficient, a non-woven composite material and applications thereof. Background technique [0002] Many household, commercial and industrial applications require films and composites with a high coefficient of friction, such as tablecloths, drape, shoe covers, etc. Due to their low price and mature production technology, polyethylene and polypropylene have always occupied a high proportion of use in people's livelihood, agriculture, and medical and health industries. At present, the friction coefficient of polyethylene and polypropylene films on the market is very low, generally 0.2-0.3, which does not have good anti-skid performance, and their applications are subject to many restrictions. Due to its low price, mature production process, and non-polar polymer with carbon-hydrogen structure, polyprop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/14C08L23/12B32B27/12B32B27/32A43B3/16C09K3/14
CPCA43B3/16B32B27/12B32B27/32B32B2250/02C08J5/18C08K2201/017C08L23/14C08L2203/02C08L2203/16C08L2310/00C09K3/149C08L23/12C08L23/06
Inventor 苏昭铭何秀容李耿裕
Owner SUZHOU ADDISON NONWOVEN PROD CO LTD
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