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Glass fibre reinforced nylon colorful heat insulation stripe for al-alloy door & window and method for preparing same

A technology of aluminum alloy doors and windows, glass fiber, applied in the direction of windows/doors, building components, buildings, etc., can solve the mechanical properties, appearance, size processing fluidity requirements of glass fiber reinforced nylon 66 insulation strips, increase processing technology, Difficulty in mold design, difficult to meet the requirements of the density of thermal insulation profiles, etc., to achieve the effects of excellent mechanical properties, excellent thermo-oxidative stability and weather resistance, and high dimensional stability

Inactive Publication Date: 2008-11-19
FOSHAN NANHAI YILE ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the strict requirements on mechanical properties, appearance, size, and processing fluidity of glass fiber reinforced nylon 66 insulation strips, it increases the difficulty of product formula design, processing technology, and mold design.
For the manufacture of glass fiber reinforced nylon 66 color insulation strips, the problem of dispersion of color masterbatch and the problem of easy discoloration of nylon at high temperature must also be dealt with.
At present, there are the following technical problems in the production of extrusion-grade glass fiber reinforced nylon 66 colored heat insulation strips: (1) glass fiber exposure is easy to occur, which affects the smoothness of the material; (2) the density of heat insulation profiles is difficult to meet the requirements; (3) The mechanical properties of profiles change greatly at high and low temperatures; (4) The relationship between material extrusion fluidity and profile dimensional stability; (5) Nylon 66 is easy to change color during high temperature processing, thus affecting the overall color; (6) Nylon 66 absorbs water easy to soften

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The composition and weight ratio of the glass fiber reinforced nylon colored heat insulation strips used in aluminum alloy doors and windows in this embodiment are as follows:

[0043] Nylon 66 resin: relative viscosity 2.5Pa.s, 100 parts

[0044] Glass fiber: alkali-free long glass fiber, 20 parts

[0045] Inorganic filler: 10 parts of hollow microspheres, 10 parts of mica

[0046] Toughening agent: ethylene-octene-maleic anhydride copolymer 12 parts

[0047] Coupling agent: 1 part of γ-glycidoxypropyltrimethoxysilane

[0048] Dispersed lubricant: 1.5 parts of bisethylene amide

[0049] Antioxidant: Dilauryl Thiodipropionate 0.6 parts

[0050] Light stabilizer: 0.2 parts of bis(2,2,6,6-tetramethylpiperidinyl) sebacate

[0051] Heat stabilizer: 0.2 parts of dibutyltin dilaurate

[0052] Color masterbatch: 4 parts of pearl white masterbatch

[0053] This embodiment is used for the preparation method of the glass fiber reinforced nylon colored heat insulation strip...

Embodiment 2

[0059] The components and weight proportions of the colored heat-insulating strips of this embodiment differ from those of Embodiment 1 in that:

[0060] The glass fiber is an alkali-free short glass fiber, and the length of the glass fiber is 2-5 μm;

[0061] The dispersing lubricant is 1.0 parts of bisethylene amide and 0.5 parts of erucamide;

[0062] Antioxidants are 0.2 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.4 parts of tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid] pentaerythritol esters.

[0063] The preparation method of the colored heat insulation strip of the present embodiment, its steps are as follows:

[0064] 1) Pretreat the short alkali-free glass fiber with a silane coupling agent.

[0065] 2) Mix the above-mentioned nylon 66 resin, toughening agent, oxidizing agent, heat stabilizer, light stabilizer, inorganic filler, and pretreated alkali-free short glass fiber evenly, and then melt and blend them through a twin-screw extru...

Embodiment 3

[0069] The components and weight proportions of the colored heat-insulating strips of this embodiment differ from those of Embodiment 1 in that:

[0070] Using 40 parts by weight of alkali-free long glass fiber as a reinforcement system without adding inorganic fillers;

[0071] The consumption of toughener is 10 parts by weight;

[0072] The dispersing lubricant is 1.5 parts of artificial wax;

[0073] Antioxidants are 0.2 parts of tris(2,4-di-tert-butylphenyl) phosphite and 0.4 parts of tetrakis[β-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionic acid] pentaerythritol esters.

[0074] The difference between the preparation method of the colored heat-insulating strips in this embodiment and the first embodiment is that the temperature in each area increases by 3-5°C during material processing, and the speed of the host machine is relatively accelerated during granulation, which is 450-600RPM. The traction speed is slightly lowered to 10-16RPM.

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Abstract

The invention discloses a glass fiber reinforced nylon colored insulated strip used for an aluminum alloy door and window. The compositions by weight portion of the glass fiber reinforced nylon colored insulated strip are: 100 portions of nylon resin, 5 to 50 portions of glass fibers, 0 to 50 portions of inorganic filler, 5 to 25 portions of toughening agent, 0.3 to 5 portions of coupling agent, 0.3 to 5 portions of dispersing lubricant, 0.2 to 5 portions of antioxidant, 0.1 to 1 portion of light stabilizer, 0.1 to 1 portion of heat stabilizer and 2 to 10 portions of colored masterbatch. The invention also discloses a method for preparing the colored insulated strip. The glass fiber reinforced nylon colored insulated strip solves the problems that the masterbatch and the filler are difficult to disperse and nylon 66 is easy to change color during the processing procedure; the insulated strip products have various colors, superior performance and beautiful appearance; and the glass fiber reinforced nylon colored insulated strip realizes perfect matching with the window color, can achieve the beautility effect, meets and enlarges the demand of clients and the market, and is favorable for promotion, use and development of the glass fiber reinforced nylon 66 insulated strip.

Description

technical field [0001] The invention relates to the technical field of engineering plastics production, in particular to a glass fiber reinforced nylon colored heat insulation strip for aluminum alloy doors and windows and a preparation method thereof. Background technique [0002] In order to achieve the purpose of energy saving, in the 1990s, my country's aluminum alloy doors and windows adopted adiabatic cold bridge technology, which is to divide the aluminum alloy door and window frame into three parts - the outer aluminum alloy frame, the inner aluminum alloy frame and the middle core connecting the inner and outer aluminum frames Part, and the middle core part, that is, the heat insulation strip, is called "insulated cold bridge". As an aluminum alloy door and window heat insulation strip, it is required to have excellent mechanical properties, especially transverse tensile properties, and has the characteristics of high gloss, good dimensional stability, and high heat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/08C08L77/00C08K7/14E06B3/263B29C47/40B29C47/92C08L23/00C08K5/54B29C48/92
CPCB29C47/92B29C48/397B29C48/40B29C48/92B29C48/95B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 缪明松马跃阮镜财刘强欧阳喜仁
Owner FOSHAN NANHAI YILE ENG PLASTICS
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