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PA composite with high-low temperature resistance, high dimension stability and UV aging resistance for outdoor ventilator and its preparation method

A technology with dimensional stability and high and low temperature resistance, applied in the polymer field, can solve the problems of restricting the application of reinforced flame retardant nylon and dimensional instability, and achieve the effect of improving dimensional stability, good weather resistance and thermal conductivity, and expanding the scope of application

Inactive Publication Date: 2018-05-15
GUANGDONG WAYLAM ENG PLASTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the reinforced flame-retardant nylons on the market currently have dimensional instability at high and low temperatures, which greatly limits the application of reinforced flame-retardant nylons in some aspects.

Method used

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  • PA composite with high-low temperature resistance, high dimension stability and UV aging resistance for outdoor ventilator and its preparation method
  • PA composite with high-low temperature resistance, high dimension stability and UV aging resistance for outdoor ventilator and its preparation method
  • PA composite with high-low temperature resistance, high dimension stability and UV aging resistance for outdoor ventilator and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Take by weighing the following dried nylon raw materials and other raw material auxiliary agents, and the percentages by weight are: relative viscosity is 2.8 PA6, 40%; toughening agent 4%; flame retardant, 20%; anti-ultraviolet agent (benzotriazole class and hindered amines), 2.5%; alkali-free glass fiber yarn, 25%; inorganic filler (silica powder, glass microsphere), 7%; antioxidant, 0.3%; other additives, 1.2%. The mixture is mixed in a high-speed mixer for 5-10 minutes, mixed evenly, melted in an extruder at 220-250° C., added with glass fiber, extruded and granulated to obtain a composite material.

Embodiment 2

[0027] Take by weighing the following dried nylon raw materials and other raw material additives, and the percentages by weight are: relative viscosity is 2.8 PA6, 40%; toughening agent 4%; flame retardant, 20%; anti-ultraviolet agent (ultrafine carbon black and hindered amines), 2.5%; alkali-free glass fiber yarn, 25%; inorganic fillers (microsilica powder, talcum powder), 7%; antioxidants, 0.3%; other additives, 1.2%. The mixture is mixed in a high-speed mixer for 5-10 minutes, mixed evenly, melted in an extruder at 220-250° C., added with glass fiber, extruded and granulated to obtain a composite material.

Embodiment 3

[0029] Take by weighing the following dried nylon raw materials and other raw material auxiliary agents, and the percentages by weight are: relative viscosity is 2.8 PA6, 40%; toughening agent 4%; flame retardant, 20%; anti-ultraviolet agent (benzotriazole class and hindered amines), 2.5%; alkali-free glass fiber yarn, 25%; inorganic filler (silica powder, quartz powder), 7%; antioxidant, 0.3%; other additives, 1.2%. The mixture is mixed in a high-speed mixer for 5-10 minutes, mixed evenly, melted in an extruder at 220-250° C., added with glass fiber, extruded and granulated to obtain a composite material.

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Abstract

The invention discloses a PA composite with high-low temperature resistance, high dimension stability and UV aging resistance for outdoor ventilator and its preparation method. The key point of the technical scheme is that the PA composite is prepared from, by weight percent, 35-60% of PA, 1-5% of flexibilizer, 20-24% of fire retardant, 2-4% of uvioresistant agent, 5-10% of inorganic filler, 10-30% of alkali-free glass fiber, 0.2-0.5% of antioxidant, and 0.5-2% of other assistant. The PA composite with high-low temperature resistance, high dimension stability and UV aging resistance for an outdoor ventilator can meet new technical requirement and has good weather-proof thermal conductance.

Description

【Technical field】 [0001] The invention relates to the technical field of macromolecules, in particular to a PA composite material for outdoor ventilation fans with high temperature resistance, high dimensional stability and UV aging resistance and a preparation method thereof. 【Background technique】 [0002] Reinforced flame-retardant nylon composite materials have good comprehensive properties and are widely used in the fields of electronic and electrical equipment and household appliances. However, most of the reinforced flame-retardant nylons in the market currently have dimensional instability under high and low temperature resistance, which greatly limits the application of reinforced flame-retardant nylons in some aspects. 【Content of invention】 [0003] The high and low temperature resistance, high dimensional stability and UV aging resistance PA composite material for an outdoor ventilation fan of the present invention meets new technical requirements and has good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/02C08L51/06C08L23/08C08L53/02C08L51/00C08K13/04C08K7/14C08K3/04C08K5/3475C08K5/315C08K5/17
Inventor 刘巍皮正亮葛嘉宝
Owner GUANGDONG WAYLAM ENG PLASTICS
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