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Polyamide wood-plastic composite material and preparation method thereof

A wood-plastic composite material and polyamide technology, applied in the field of polyamide wood-plastic composite material and its preparation, can solve the problems of the development of wood-plastic composite material, low decomposition temperature of wood filler, high processing temperature of nylon 6, etc. The effect of good performance, environmental protection and resource saving

Active Publication Date: 2013-09-11
SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the contradiction between the high processing temperature required for nylon 6 and the low decomposition temperature of wood fillers makes the development of nylon 6 wood-plastic composites a difficult problem.

Method used

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  • Polyamide wood-plastic composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Weigh raw materials according to the following parts by weight:

[0038] Nylon 6 is 100 parts of reclaimed polycaprolactam,

[0039] 30 parts wood filler,

[0040] Inorganic filler (talcum powder, particle size is 500-2000 mesh.) 5 parts,

[0041] Processing aids (MgBr 2 ) 2 copies,

[0042] Compatibilizer 0 parts,

[0043] 0.5 parts of coupling agent (KH-550),

[0044] Antioxidant (antioxidant 1098) 0.2 part,

[0045] Lubricant (PE wax) 0.3 parts.

[0046] Carry out batching according to above-mentioned weight portion, nylon 6, compatibilizer, processing aid MgBr 2 1. Antioxidant 1098 is put into a high-speed mixer and mixed at a high speed. After mixing for 3 minutes, it is fed into the hopper of a twin-screw extruder;

[0047] Then put the wood filler, inorganic filler talc powder, coupling agent KH-550, and lubricant PE wax into the high-speed mixer and mix at high speed. After mixing for 4 minutes, add the twin-screw extruder from the side feeding port; con...

Embodiment 2-5

[0049] In Examples 2-5, the components and amounts of raw materials are shown in Table 1 (by weight), and the preparation method is the same as in Example 1.

[0050] The nylon 6 used below is a new polycaprolactam material.

[0051] Table 1

[0052]

[0053]

[0054] The mechanical properties of the polyamide wood-plastic composite materials prepared in Examples 2-5 are shown in Table 2.

[0055] Table 2

[0056] Example

[0057] It can be seen from Table 2 that the present invention overcomes the contradiction between the high processing temperature of nylon 6 and the low decomposition temperature of wood filler, fully utilizes the characteristics of excellent performance and good processing fluidity of nylon 6, and the obtained wood-plastic composite material has better strength, The advantages of high fluidity and better injection molding can be widely used as wood substitute materials in various fields of social life. It is conducive to energy saving, e...

Embodiment 6

[0059] Put 100 parts of recycled polycaprolactam, 8 parts of compatibilizer PP-g-MAH, 1 part of processing aid N-E-O / PTSA, and 0.5 parts of antioxidant 1098 into a high-speed mixer and mix at a high speed. After mixing for 3 minutes, feed to Twin-screw extruder hopper;

[0060]Then put 70 parts of wood filler, 9 parts of talc powder with a particle size of 500-2000 mesh, and 2 parts of coupling agent KH-550 into a high-speed mixer for high-speed mixing. Exit the machine: control the temperature of each zone, from the feed port to the die head of the extruder, the temperature is 210 ° C, 230 ° C, 240 ° C, 190 ° C, 220 ° C, the main engine speed is 50Hz, extruded and granulated by the twin-screw extruder That's it.

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Abstract

The invention belongs to the technical field of a high-molecular material and discloses a polyamide wood-plastic composite material and a preparation method thereof. The material is prepared from the following components in parts by weight: 100 parts of nylon 6, 30-100 parts of wood filler, 5-15 parts of inorganic filler, 1-5 parts of processing aid, 0-15 parts of compatilizer, 0.5-3 parts of coupling agent, 0.2-1 part of antioxygen and 0-3 parts of lubricating agent. The preparation method comprises the following steps of: (1) adding 100 parts of nylon 6, 0-15 parts of compatilizer, 1-5 parts of processing aid and 0.2-1 part of antioxygen into a high-speed mixer to uniformly mix them at a high speed so as to obtain a mixed material; (2) adding 30-100 parts of wood fillers, 5-15 parts of inorganic fillers, 0.5-3 parts of coupling agent and 0-3 parts of lubricating agent into the high-speed mixer for uniform mixing at high speed so as to obtain a mixed material; and (3) adding the mixed material obtained in step (1) and the mixed material obtained in step (2) into a double-screw extruder for extrusion-pelleting so as to obtain a polyamide wood-plastic composite material. The material provided by the invention has better intensity and flowability, and can be injection-molded.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a polyamide wood-plastic composite material and a preparation method thereof. Background technique [0002] Most of the wood-plastic composite materials currently on the market are based on traditional polymers such as polyvinyl chloride, polypropylene, and polyethylene. However, due to the large polarity difference between these polymer matrices and wood fillers, the compatibility between the two Poor performance and insufficient interfacial force have resulted in the disadvantages of low mechanical properties of wood-plastic composite materials, and the material fluidity is not good when the filling amount is high, and it is generally difficult to injection molding. Products with low strength requirements greatly limit the application of wood-plastic composite materials. [0003] Nylon 6 material has obvious advantages over polyvinyl chloride, polypropylene, polyethyle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L97/02C08L51/06C08K13/02C08K3/34C08K3/22C08K3/36C08K3/16C08K5/435B29C47/92B29C48/92
CPCB29C48/04B29C48/40
Inventor 赵敏
Owner SHANGHAI GENIUS ADVANCED MATERIAL (GRP) CO LTD
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