Unlock instant, AI-driven research and patent intelligence for your innovation.

Low-linear-expansion-coefficient grease-resistant ABS (acrylonitrile butadiene styrene) composite material and preparation method thereof

A low linear expansion and composite material technology, applied in the field of modified plastics, can solve the problems of large linear expansion coefficient, oil resistance performance deviation, large size deviation, etc., and achieve the reduction of linear expansion coefficient, improvement of impact performance, and enhanced bonding force Effect

Inactive Publication Date: 2019-05-14
ORINKO NEW MATERIAL CO LTD
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the refrigerator box liner and door liner need to be filled with a foam layer with thermal insulation effect, and the linear expansion coefficient of the ABS resin of the refrigerator box liner and door liner itself is relatively large, when the temperature difference between before and after filling is large, large-sized ABS parts will be produced. The problem of large size deviation, resulting in appearance defects
In addition, the ABS parts on the refrigerator will often come into contact with oily esters. Due to the deviation of the oily ester resistance of the ABS material, cracking will also occur.

Method used

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Low-linear-expansion-coefficient grease-resistant ABS (acrylonitrile butadiene styrene) composite material and preparation method thereof
  • Low-linear-expansion-coefficient grease-resistant ABS (acrylonitrile butadiene styrene) composite material and preparation method thereof
  • Low-linear-expansion-coefficient grease-resistant ABS (acrylonitrile butadiene styrene) composite material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The low linear expansion coefficient oil-resistant ester ABS composite material in the present embodiment is made up of following raw materials by weight:

[0034]

[0035]

[0036] Concrete preparation method comprises the following steps:

[0037] (1) Take general-purpose ABS resin, PBT resin, compatibilizer, toughening agent, antioxidant, lubricant according to the proportion and add it to the high mixer and mix it for 5 minutes at a speed of 150r / min;

[0038] (2) Put the mixture of the above (1) into a parallel twin-screw extruder with strong screw combined shear to melt, melt and mix, extrude and granulate, and set the barrel temperature of the extruder within the range of 190-245°C , the screw speed is 390r / min, the melt pressure is controlled at 1.5MPa, and the vacuum degree is controlled at -0.04MPa, that is, the low linear expansion coefficient oil-resistant ABS composite material is obtained.

Embodiment 2

[0040] The low linear expansion coefficient oil-resistant ester ABS composite material in the present embodiment is made up of following raw material by weight:

[0041]

[0042] Concrete preparation method comprises the following steps:

[0043] (1) Take general-purpose ABS resin, PBT resin, compatibilizer, toughening agent, antioxidant, lubricant according to the proportion and add it to the high mixer and mix it for 5 minutes at a speed of 150r / min;

[0044] (2) Put the mixture of the above (1) into a parallel twin-screw extruder with strong screw combined shear to melt, melt and mix, extrude and granulate, and set the barrel temperature of the extruder within the range of 190-245°C , the screw speed is 420r / min, the melt pressure is controlled at 1.6MPa, and the vacuum degree is controlled at -0.06MPa, that is, the oil-resistant ABS composite material with low linear expansion coefficient is obtained.

Embodiment 3

[0046] The low linear expansion coefficient oil-resistant ester ABS composite material in the present embodiment is made up of following raw materials by weight:

[0047]

[0048] Concrete preparation method comprises the following steps:

[0049] (1) Take general-purpose ABS resin, PBT resin, compatibilizer, toughening agent, antioxidant, lubricant according to the proportion and add it to the high mixer and mix it for 5 minutes at a speed of 150r / min;

[0050] (2) Put the above-mentioned (1) mixed material into a parallel twin-screw extruder with strong screw combined shear to melt, melt and mix, extrude and granulate, and set the barrel temperature of the extruder at 190-245 ℃ Within the range, the screw speed is 450r / min, the melt pressure is controlled at 1.7MPa, and the vacuum degree is controlled at -0.08MPa, that is, the oil-resistant ABS composite material with low linear expansion coefficient can be obtained.

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

No PUM Login to View More

Abstract

The invention discloses a low-linear-expansion-coefficient grease-resistant ABS (acrylonitrile butadiene styrene) composite material and a preparation method thereof. The preparation method includes the steps: first, adding styrene-acrylonitrile-butadiene terpolymer, polybutylene terephthalate, compatilizers, flexibilizers, precipitated barium sulphate, lubricants and antioxidants into a high mixing machine and mixing the materials at the rotation speed of 140-160r / min for at least 5 minutes; second, placing the mixed materials into a parallel double-screw extruder, and melting, mixing, extruding and granulating the mixed materials to obtain the ABS composite material. The linear expansion coefficient of the prepared low-linear-expansion-coefficient ABS composite material can be as low asabout 52ppm*DEG C<-1>, the glossiness and the toughness of the composite material can reach the level of ABS resin, the mineral oil corrosion resistance of the composite material is obviously improvedas compared with the ABS resin, and the composite material is free from cracking after mineral oil resistance test is performed on a bending fixture with a certain curvature by the aid of a stretching spline for 96 hours.

Description

technical field [0001] The invention relates to the field of modified plastics, in particular to a low linear expansion coefficient oil-resistant ABS composite material and a preparation method thereof. Background technique [0002] ABS resin is a terpolymer of styrene series, which is a kind of thermoplastic formed by graft copolymerization of styrene (St), acrylonitrile (AN) and butadiene (Bd) monomers. Complementary advantages, so that it has the characteristics of good rigidity, high impact strength, heat resistance, low temperature resistance, chemical resistance, excellent electrical properties, easy processing and molding, good dimensional stability, good surface gloss, and easy coloring. Due to the excellent comprehensive performance of ABS resin, it has been widely used in the exterior parts of home appliances, such as refrigerator end covers, handles, door frames, freezer mouth frames, etc. [0003] As people have higher and higher requirements on the function, vo...

Claims

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L55/02C08L67/02C08L25/14C08L51/04C08L53/00C08K3/30
Inventor 范保林任东方邢纪普李荣群
Owner ORINKO NEW MATERIAL CO LTD