Preparation method of impact resistant polycarbonate

A polycarbonate, impact-resistant technology, applied in the field of polymer materials, can solve the problems of low fatigue strength, low melting point and glass transition temperature, stress cracking, etc., and achieve the effect of improving mechanical strength

Inactive Publication Date: 2015-01-21
ZHONGSHAN NUODUN SCI RES TECH SERVICE CO LTD +2
2 Cites 59 Cited by

AI-Extracted Technical Summary

Problems solved by technology

Disadvantages are low fatigue strength, prone to stress cracking, high notch sensitivity, and poor wear resis...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Method used

[0058] As can be seen from the table, the polycarbonate provided by the present invention has good mechanical strength. As can be seen by comparing the examples with the comparative example 1, the tensile strength can be significantly improved by introducing the preform; as can be seen from the examp...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

The invention relates to a preparation method of impact resistant polycarbonate, and belongs to the technical field of high-molecular materials. The preparation method comprises the following steps: taking calcium fatty acids, heating, adding monox powder and glass fiber, uniformly mixing, and obtaining modified powder after cooling; initially mixing the modified powder and polyvinyl in a mixing machine, adding ethylene bis stearamide and chlorinated polyethylene, uniformly mixing after heating, and cooling to the room temperature to obtain a precast body; uniformly mixing the precast body, polycarbonate, butanediol diacrylate, an anti-oxidant, a silicane coupling agent and a lubricant to obtain a mixture; feeding the mixture into a double screw rod extruding machine for extrusion pelletization. According to the polycarbonate material provided by the invention, the monox particles are prepared into the precast body through the pre-wrapping method, and then the precast body and PC are subjected to extrusion, so that the mechanical strength is improved.

Application Domain

Lighting support devicesElectric circuit arrangements +8

Technology Topic

Fatty acidPolyethylene +17

Image

  • Preparation method of impact resistant polycarbonate

Examples

  • Experimental program(3)
  • Comparison scheme(3)
  • Effect test(1)

Example Embodiment

[0020] Example 1
[0021] The preparation method of impact-resistant polycarbonate includes the following steps:
[0022] Step 1. Preparation of the preform: take 20 Kg of fatty acid calcium, heat to 150°C, then add 20 Kg of silica powder and 0.5 Kg of glass fiber, stir evenly, and cool to obtain modified powder; The powder and polyethylene 10 Kg are initially mixed in the mixer, and then 5 Kg of ethylene bis-stearamide and 5 Kg of chlorinated polyethylene are added. After the temperature is raised, the mixture is evenly mixed and cooled to room temperature to obtain a preform. The length is 10~500 microns;
[0023] Step 2: Mix the preform, 40Kg of polycarbonate, 3Kg of butanediol diacrylate, 0.5Kg of antioxidant, 0.5Kg of silane coupling agent KH-570, and 0.5Kg of lubricant to obtain a mixture; The antioxidant is antioxidant 1010;
[0024] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion temperature of the twin-screw extruder is 190°C in the first zone, 200°C in the second zone, 220°C in the third zone, and 220°C in the fourth zone. The temperature is 210°C, the five-zone temperature is 230°C, and the screw speed is 180 rpm.
[0025]

Example Embodiment

[0026] Example 2
[0027] The preparation method of impact-resistant polycarbonate includes the following steps:
[0028] Step 1. Preparation of the preform: take 30 Kg of fatty acid calcium, heat to 170°C, then add 30 Kg of silica powder and 1 Kg of glass fiber, stir evenly, and cool to obtain a modified powder; The powder and polyethylene 20 Kg are initially mixed in a mixer, then 10 Kg of ethylene bis-stearamide and 10 Kg of chlorinated polyethylene are added. After the temperature is raised, the mixture is evenly mixed and cooled to room temperature to obtain a preform. The glass fiber The length is 10-500 microns;
[0029] The second step is to mix the preform, 60Kg of polycarbonate, 5Kg of butanediol diacrylate, 1Kg of antioxidant, 1Kg of silane coupling agent KH-570, and 1Kg of lubricant to obtain a mixture; The agent is antioxidant 1010;
[0030] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion temperature of the twin-screw extruder is 190°C in the first zone, 200°C in the second zone, 220°C in the third zone, and 220°C in the fourth zone. The temperature is 210°C, the five-zone temperature is 230°C, and the screw speed is 180 rpm.
[0031]

Example Embodiment

[0032] Example 3
[0033] The preparation method of impact-resistant polycarbonate includes the following steps:
[0034] Step 1. Preparation of the preform: take 25 Kg of fatty acid calcium, heat it to 160℃, then add 25 Kg of silica powder and 0.8 Kg of glass fiber, stir evenly, and cool to obtain a modified powder; The powder and 15 Kg of polyethylene are initially mixed in the mixer, and then 8 Kg of ethylene bis-stearamide and 7 Kg of chlorinated polyethylene are added. After the temperature is raised, the mixture is evenly mixed and cooled to room temperature to obtain a preform. The glass fiber The length is 10-500 microns;
[0035] Step 2: Mix the preform, 50Kg of polycarbonate, 4Kg of butanediol diacrylate, 0.6Kg of antioxidant, 0.8Kg of silane coupling agent KH-570, and 0.6Kg of lubricant to obtain a mixture; The antioxidant is antioxidant 1010;
[0036] The third step is to feed the mixture into a twin-screw extruder for extrusion and granulation, that is, the extrusion temperature of the twin-screw extruder is 195°C in the first zone, 205°C in the second zone, 225°C in the third zone, and 225°C in the fourth zone. The temperature is 220°C, the five-zone temperature is 235°C, and the screw speed is 200 rpm.
[0037]
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Length10.0 ~ 500.0µm
tensileMPa
Particle sizePa
strength10

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Polarizer Protective Film, Polarizing Plate, and Image Display Apparatus

InactiveUS20090153965A1High mechanical strengthExcellent optical propertiesPolarising elementsPolarizerProduction rate
Owner:NIPPON SHOKUBAI CO LTD +1

Polyolefin Microporous Membrane

InactiveUS20080193833A1Excellent permeabilityHigh mechanical strengthSynthetic resin layered productsCell component detailsPolyolefinSurface layer
Owner:ASAHI KASEI CHEM CORP

Silicon alkyl cross bonding polyethylene fire-retardancy insulating plastics

InactiveCN1464005AHigh mechanical strengthGood electrical performanceFire retardantMetal deactivator
Owner:上海高分子功能材料研究所

Latex for dip forming and molded object obtained by dip forming

InactiveUS6844385B1Soft feelHigh mechanical strengthCeramic shaping apparatusCoatingsGramAcid group
Owner:ZEON CORP

Tungsten-polymer composite material and preparation method thereof

InactiveCN102585330AImproved Radiation Shielding PerformanceHigh mechanical strengthWeather resistanceSurface modification
Owner:XIAMEN HONGLU TUNGSTEN MOLYBDENUM IND CO LTD

Classification and recommendation of technical efficacy words

  • High mechanical strength
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap