Tackifying polyamide 6 composition

A technology of polyamide and composition, applied in the field of tackifying polyamide 6 composition, can solve the problems of low number-average molecular weight, low melt strength and viscosity of nylon 6, unsuitable for extrusion profiles, etc., and achieves melt flow rate Low, change in flow properties, effect of low coefficient of friction

Inactive Publication Date: 2008-02-06
SHANGHAI SUNNY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The number-average molecular weight of nylon 6, which is widely used, is very low (<30000). Such a low molecular weight makes the melt strength and viscosity too low to be suitable for extrusion profiles or blow molding. Generally, it can only be injection molded, which makes its application The range is very limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0020] Nylon 6 is used as base resin, diisocyanate TDI and 4,4-isopropylidene bisphenol salicylate are used as tackifiers, and styrene-maleic anhydride copolymer SMA is used as compatibilizer.

[0021] Proportion 1-4 (weight %)

[0022] raw material name

Matching ratio 1

Matching 2

Matching ratio 3

Matching ratio 4

Nylon 6

100

89

88

79

4-Isopropylidene bis-phenylphenol salicylate

-

5

-

2

Diisocyanate TDI

-

-

5

-

Styrene-maleic anhydride copolymer SMA

-

4

-

15

Ethylene-vinyl acetate copolymer EVA

-

-

4

-

Nanoscale silica

-

1

2

3

Antioxidant is 1010

-

-

-

1

Antioxidant is 1010 / 168 (1:1)

-

1

1

-

[0023] The above-mentioned components were mixed in a high-speed mixer in proportion for 4 minutes, and then ...

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PUM

PropertyMeasurementUnit
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Abstract

The present invention relates to a combination of tackified polyamide 6, which is made up of materials having following weight percentages: 6 60-94.7 percent of nylon, 0.1-35 percent of tackifier, 5-20 percent of compatilizer, 0.1-5 percent of silicon dioxide of nanometer scale and 0.1-1 percent of antioxidant. The combination of tackified nylon 6 of the present invention has simple manufacturing method, the present invention has the advantages that the impact toughness is improved, the intension of the fused mass is high, various thin wall shaping articles can be made by extruding or blow molding, and in particular the present invention can be used in polymer tubular of good high performance in medical operation due to the good compliance, high tenacity and low friction factor of the material.

Description

technical field [0001] The present invention relates to a tackified polyamide 6 composition that can be used for extrusion or blow molding into various thin-walled profiles, especially for interventional procedures due to the material's good flexibility, high toughness, and low coefficient of friction The high-performance polymer pipe material belongs to the technical field of engineering plastics. Background technique [0002] Nylon 6 has good physical and mechanical properties, such as high tensile strength, excellent wear resistance, good impact resistance, and outstanding chemical and oil resistance. It is the most widely used variety among the five major engineering plastics and is widely used in various Electrical and electronic equipment and home appliances. The number-average molecular weight of nylon 6, which is widely used, is very low (<30000). Such a low molecular weight makes the melt strength and viscosity too low to be suitable for extrusion profiles or bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08K5/29C08L51/00C08K3/36
Inventor 孟成铭李茂林王永和唐倬
Owner SHANGHAI SUNNY
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