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Environment-friendly modified ASA (Acrylonitrile Styrene Acrylate) profiled bar base station antenna outer cover and preparation method thereof

An environment-friendly, base station antenna technology, applied in the field of profiled cover and its preparation, can solve problems such as lack of long-term resistance to ultraviolet radiation, continuous production of twin-screw extruders, and no thermal conductivity of materials involved. , to achieve the effect of excellent UV resistance, low thermal conductivity and excellent mechanical properties

Active Publication Date: 2014-12-24
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the use of bulk nitrile rubber in the formulation, the modified ASA material needs to be produced intermittently with an internal mixer, and cannot be continuously produced with a twin-screw extruder; in addition, for special occasions, this modified The heat resistance of ASA materials needs to be further improved
The invention patent with the publication number CN102030958A discloses a heat-resistant ASA resin composition and its preparation method. It introduces the blending of AS resin and high-glue ASA resin, and improves the performance of the ASA resin composition by adding a heat-resistant modifier. Heat resistance, when the maximum bending stress is 1.80MPa, the heat distortion temperature is 88-94°C, but the addition of heat-resistant modifier seriously deteriorates its impact resistance, and the corresponding notched impact strength is only 7-12kJ / m 2 , can not meet the requirements of the antenna cover material to withstand the invasion of the external harsh environment (such as storms, ice and snow, sand and dust, etc.) Designed according to the requirements of the use, does not have the ability to withstand long-term ultraviolet radiation
[0006] In addition, none of the above-mentioned existing publications involves parameters such as thermal conductivity of materials

Method used

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  • Environment-friendly modified ASA (Acrylonitrile Styrene Acrylate) profiled bar base station antenna outer cover and preparation method thereof
  • Environment-friendly modified ASA (Acrylonitrile Styrene Acrylate) profiled bar base station antenna outer cover and preparation method thereof
  • Environment-friendly modified ASA (Acrylonitrile Styrene Acrylate) profiled bar base station antenna outer cover and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Raw material formula: ASA resin (220°C×10kg melt flow rate=2.5g / 10min) 70, αMSAN heat-resistant modified resin (mass ratio α-methylstyrene / acrylonitrile=75 / 25, 220°C×10kg melt Volume flow rate 3.0g / 10min) 30, chlorinated polyethylene 15, high glue ASA resin (PBA content 60wt%) 5, oxidized polyethylene wax 1.5, ultraviolet light absorber UV3261.0, hindered amine light stabilizer C9440. 5. Antioxidant B2150.25, mercaptan organotin 0.6, surface modified porous silica 2, coloring agent 0.05.

[0033] Preparation Process:

[0034] ①Firstly, raw materials such as chlorinated polyethylene, mercaptan organotin, oxidized polyethylene wax, antioxidant B215, ultraviolet light absorber UV326, hindered amine light stabilizer C944 are processed in a vertical plastic mixer at 20°C Pre-mixing, during the stirring process, turn forward for 2 minutes, reverse for 2 minutes, and mix for 8 minutes in turn.

[0035] ② Add premixed chlorinated polyethylene premix, ASA resin, αMSAN heat-res...

Embodiment 2

[0039] Raw material formula: ASA resin (220°C×10kg melt flow rate=3.3g / 10min) 30, αMSAN heat-resistant modified resin (mass ratio α-methylstyrene / acrylonitrile=70 / 30, 220°C×10kg melt Volume flow rate 3.6g / 10min) 30, chlorinated polyethylene 10, high glue ASA resin (PBA content 70wt%) 10, oxidized polyethylene wax 0.5, magnesium stearate 0.5, ultraviolet light absorber UV3261.0, hindered amine Light stabilizer C9440.5, antioxidant B2150.25, mercaptan organotin 0.5, surface modified porous silica 5, colorant 0.05.

[0040] Preparation Process:

[0041] ① Firstly, raw materials such as chlorinated polyethylene, mercaptan organotin, oxidized polyethylene wax, magnesium stearate, antioxidant B215, ultraviolet light absorber UV326, hindered amine light stabilizer C944, etc. Type plastic mixer for pre-mixing, during the stirring process, turn forward for 2 minutes, reverse for 2 minutes, and mix for 4 minutes in turn.

[0042] ② Add premixed chlorinated polyethylene premix, ASA resin...

Embodiment 3

[0046] Raw material formula: ASA resin (220°C×10kg melt flow rate=3.0g / 10min) 35, αMSAN heat-resistant modified resin (mass ratio α-methylstyrene / acrylonitrile=70 / 30, 220°C×10kg melt Volume flow rate 3.6g / 10min) 65, chlorinated polyethylene 15, high glue ASA resin (PBA content 65wt%) 5, acrylate impact modifier 5, ethylene bis stearic acid amide 1.0, stearic acid Barium 0.5, calcium stearate 0.5, UV absorber UV3260.7, hindered amine light stabilizer C9440.8, rutile titanium dioxide 3, antioxidant B2150.25, mercaptan organotin 0.7, surface modified porous di Silicon oxide 3, colorant 0.06.

[0047] Preparation Process:

[0048] ① First, chlorinated polyethylene, mercaptan organotin, ethylene bisstearic acid amide, barium stearate, calcium stearate, antioxidant B215, ultraviolet light absorber UV326, hindered amine light stabilizer C944, etc. The raw materials were pre-mixed in a vertical plastic mixer at 30°C. During the stirring process, it was rotated forward for 2 minutes,...

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Abstract

The invention discloses an environment-friendly modified ASA (Acrylonitrile Styrene Acrylate) profiled bar base station antenna outer cover and a preparation method thereof. The modified ASA profiled bar base station antenna outer cover has multifunctionality and is environment-friendly, excellent in mechanical property, highly heat-resistant, excellent in dielectric properties, excellent in ultraviolet irradiation resistance and low in heat conductivity coefficient. The environment-friendly modified ASA profiled bar base station antenna outer cover disclosed by the invention is prepared from the following raw materials in parts by weight: 30-70 parts of ASA resin, 30-70 parts of alphaMSAN heat-resistant modified resin, 5-10 parts of high-rubber ASA resin, 5-30 parts of chlorinated polyethylene, 0-20 parts of acrylate impact modifier, 0.5-2 parts of lubricating agent, 1.0-1.5 parts of light stabilizer, 0.1-0.5 part of antioxidant B215, 0.5-1.0 part of heat stabilizer, 0-10 parts of titanium dioxide, 1-5 parts of surface modified porous silicon dioxide and 0.05-0.06 part of coloring agent.

Description

technical field [0001] The invention relates to a special-shaped material outer cover and a preparation method thereof, and more specifically relates to an environment-friendly modified ASA special-shaped material base station antenna outer cover and a preparation method thereof. Background technique [0002] Among the three major synthetic materials of synthetic resin, synthetic rubber and synthetic fiber, synthetic resin has the largest output and the widest range of applications. There are various types of synthetic resins depending on the monomers used, and its most important application is the manufacture of plastic products. Polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polystyrene (PS) and acrylonitrile-butadiene-styrene copolymers in synthetic resins (ABS) resin is called the five general-purpose resins and is the most widely used synthetic resin material. Among the five general-purpose resins, ABS resin usually refers to the graft copolymer of po...

Claims

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Application Information

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IPC IPC(8): C08L51/00C08L23/28C08L25/12C08L25/16C08L51/04C08K13/06C08K9/06C08K9/10C08K3/36C08K3/22C08K5/098B29C47/92B29C48/92
Inventor 张军相波徐国忠刘涛柴瑞丹倪桓黄安李峰
Owner NANJING UNIV OF TECH
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