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Preparation method of high-molecular composite material strip nail

A composite material and polymer technology, applied in the field of polymer composite materials, can solve the problems of insufficient strength, toughness and strength reduction of plastic nails, and achieve the effect of light weight and high strength

Inactive Publication Date: 2013-08-21
HANGZHOU HAIXUE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plastic nails prepared by these methods do not belong to the combination nails that are arranged together in a regular manner to form a whole row. In addition, the strength and toughness of the plastic nails prepared by these methods are not enough, especially the affinity of the amide structure of nylon to water molecules causes the material After standing for a period of time, the strength will decrease due to the absorption of water

Method used

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  • Preparation method of high-molecular composite material strip nail
  • Preparation method of high-molecular composite material strip nail
  • Preparation method of high-molecular composite material strip nail

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step (1). 40Kg nylon-6, 40Kg glass fiber, 1Kg grafted POE, 1Kg nanoscale talcum powder, 2Kg nanoscale calcium carbonate, 2Kg nanoscale silicon dioxide, 0.1Kg coupling agent KH-560, 0.2Kg Antioxidant 1098 and 0.1Kg calcium stearate were mixed uniformly, put into a twin-screw extruder, and granulated through melt extrusion. The technological parameters of the melt extrusion granulation are as follows: the barrel temperature of the twin-screw extruder is 250° C., the nozzle temperature is 260° C., and the screw speed is 200 rpm.

[0026] Step (2). The obtained pellets were dried at 100° C. for 8 hours, and then injection molded in an injection molding machine. The injection molding process parameters are: the mold temperature is 120°C, the injection molding temperature is 250°C, and the injection molding pressure is 45Mpa.

[0027] Step (3). After impregnating the injection-molded material with a silicone oil-acetone solution with a mass content of 1% silicone oil, dry it...

Embodiment 2

[0029] Step (1). With 45Kg nylon-66, 30Kg glass fiber, 2Kg grafted EPDM, 2Kg nano-scale calcium carbonate, 2Kg nano-scale silicon dioxide, 0.2Kg coupling agent KH-570, 0.3Kg antioxidant 1010, 0.5Kg The silicone powder is mixed evenly, put into a twin-screw extruder, and granulated through melt extrusion. The technological parameters of the melt extrusion granulation are as follows: the barrel temperature of the twin-screw extruder is 255° C., the nozzle temperature is 265° C., and the screw speed is 250 rpm.

[0030] Step (2). The obtained pellets were dried at 105° C. for 7 hours, and then injection molded in an injection molding machine. The injection molding process parameters are: the mold temperature is 125°C, the injection molding temperature is 260°C, and the injection molding pressure is 40Mpa.

[0031] Step (3). After impregnating the injection-molded material with a silicone oil-acetone solution with a mass content of 1.5% of silicone oil, dry it at 135°C for 1 hour...

Embodiment 3

[0033] Step (1). With 60Kg nylon-610, 20Kg glass fiber, 4Kg grafted POE, 3Kg nanometer silicon dioxide, 0.25Kg coupling agent KH-560, 0.25Kg coupling agent KH-570, 0.1Kg antioxidant 1098 , 1Kg calcium stearate, and 1Kg silicone powder are mixed evenly, put into a twin-screw extruder, and granulate through melt extrusion. The technological parameters of the melt extrusion granulation are as follows: the barrel temperature of the twin-screw extruder is 260° C., the nozzle temperature is 270° C., and the screw speed is 240 rpm.

[0034] Step (2). The obtained pellets were dried at 110° C. for 6 hours, and then injection molded in an injection molding machine. The injection molding process parameters are: the mold temperature is 130°C, the injection molding temperature is 265°C, and the injection molding pressure is 38Mpa.

[0035] Step (3). After impregnating the injection-molded material with a silicone oil-acetone solution with a mass content of 2% silicone oil, dry it at 140°...

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Abstract

The invention relates to a preparation method of high-molecular composite material strip nail. Strength and toughness of plastic nails prepared by present methods are not high enough. The method provided by the invention comprises the following steps: firstly uniformly mixing nylon resin, glass fibre, a toughening modifier, a filler, a coupling agent, an anti-oxidant and a lubricant in proportion, and carrying out melt extrusion for pelleting; drying pellets, and forming by injection moulding in an injection machine to form a strip nail structure which comprises a plurality of individual nail bodies which are arranged in parallel, wherein two adjacent individual nail bodies are connected with each other through a connecting rod and a sidewall of each nail body part is provided with an elongated groove; and dipping and drying the injection-moulded material by the use of a silicone oil acetone solution, so as to obtain the high-molecular composite material strip nail. The high-molecular composite material strip nail prepared by the method has characteristics of high strength, light weight, rust resistance, corrosion resistance, antistatic performance, colorable performance and stable performance, and is convenient for secondary processing.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and relates to a preparation method of a row of nails made of polymer composite materials, in particular to a nanomaterial-reinforced nylon used by an electric or pneumatic nailing gun and arranged together in a regular manner to form a whole row A preparation method of engineering plastic nail row. Background technique [0002] The nail row is a combination of many individual nails that are bonded together in a regular arrangement with adhesive to form a whole row. The impact force generated by an electric or pneumatic nail gun can drive the built-in row nails into wood, plastic or other materials. , get the effect of fastening the corresponding material. Due to its unique fastening effect and convenient operation, row nails have been widely used in many industries such as construction, home decoration, packaging, furniture and leather goods, with an annual output value of m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/00C08L77/06C08L77/02C08L51/06C08K13/04C08K7/14C08K3/34C08K3/26C08K3/36C08J7/04B29B9/06B29C47/92B29C45/76F16B15/08B29C48/92
CPCB29C48/40B29C48/92B29C2948/92704B29C2948/92923
Inventor 聂秋林卢红伟
Owner HANGZHOU HAIXUE TECH
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