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

A kind of waste TPU elastomer and inorganic rigid material synergistically modified recycled ABS composite material and its preparation method

A technology of rigid materials and composite materials, which is applied in the field of recycled ABS composite materials and its preparation, can solve problems such as the generation of a large amount of harmful gases, difficult degradation of TPU, and waste of materials in the environment, so as to reduce harmful effects, improve product grades, and expand the scope of application Effect

Active Publication Date: 2021-02-19
SHANGHAI SECOND POLYTECHNIC UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the methods of processing thermoplastic polyurethane are mainly incineration or landfill, but TPU is difficult to be degraded when landfilled, and a large amount of harmful gas will be generated during the combustion process, which will also cause waste of materials and environmental pollution.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) After cleaning, drying, and crushing waste ABS or waste TPU, put it in an ultrasonic cleaner for 4 hours, put it in a vacuum constant temperature blast drying box, and dry it at 100°C for 4 hours. The crushed waste ABS or TPU is pelletized with twin screw extruder. When the waste ABS is granulated, the temperature of each temperature zone is 170℃, and the speed of the main engine is controlled to 40r / min. When the waste TPU is granulated, the temperature of each temperature zone is 170°C, and the speed of the main machine is controlled to 30r / min.

[0030] (2) After mixing 15% of TPU particles, 3% of nano calcium carbonate, 0.3% of coupling agent and 81.7% of ABS particles by mass percentage, put the mixture into a torque rheometer, melt blending The temperature is about 210 °C, and the melt blending time is 30 min, and the recycled ABS composite material is obtained by synergistic modification of waste TPU elastomer and inorganic rigid material.

[0031] The obta...

Embodiment 2

[0033](1) After cleaning, drying, and crushing waste ABS or waste TPU, put it in an ultrasonic cleaner for 4 hours, put it in a vacuum constant temperature blast drying box, and dry it at 100°C for 6 hours. The crushed waste ABS or TPU is pelletized with twin screw extruder. When the waste ABS is granulated, the temperature of each temperature zone is 180℃, and the speed of the main engine is controlled to 30r / min. When the waste TPU is granulated, the temperature of each temperature zone is 180°C, and the speed of the main machine is controlled to 40r / min.

[0034] (2) After mixing 20% ​​of TPU particles, 3% of nano-calcium carbonate, 0.3% of coupling agent and 76.7% of ABS particles by mass percentage, put the mixture into a torque rheometer, melt blending The temperature is about 210 °C, and the melt blending time is 30 min, and the recycled ABS composite material is obtained by synergistic modification of waste TPU elastomer and inorganic rigid material.

[0035] The obt...

Embodiment 3

[0037] (1) After cleaning, drying, and crushing waste ABS or waste TPU, put it in an ultrasonic cleaner for cleaning for 10 hours, put it in a vacuum constant temperature blast drying box, and dry it at 85°C for 8 hours. The crushed waste ABS or TPU is pelletized with twin screw extruder. When the waste ABS is granulated, the temperature of each temperature zone is 210℃, and the speed of the main engine is controlled to 40r / min. When the waste TPU is granulated, the temperature of each temperature zone is 220°C, and the speed of the main machine is controlled to 30r / min.

[0038] (2) After mixing 8% of TPU particles, 8% of nano calcium carbonate, 0.7% of coupling agent and 83.3% of ABS particles by mass percentage, put the mixture into a torque rheometer, melt blending The temperature is about 170 °C, and the melt blending time is 20 min, and the recycled ABS composite material is obtained by synergistic modification of waste TPU elastomer and inorganic rigid material.

[00...

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
sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a regenerated ABS composite material synergistically modified by waste TPU elastomer and inorganic rigid material and a preparation method thereof. The composite material includes waste TPU (8%~20w%), inorganic rigid material (3%~8w%), waste ABS (71.3%~88.7w%), coupling agent (0.3%~0.7w%), the present invention First, the waste TPU and ABS are cleaned, crushed, cleaned and dried, and then regenerated TPU and ABS particles are obtained by extrusion granulation; then the regenerated TPU and ABS particles are mixed with inorganic rigid materials and coupling agents, and melt blended. Recycled ABS composite material is obtained. In the present invention, the purpose of toughening and strengthening the ABS plastic can be achieved through the synergistic effect of the two materials, and at the same time, the waste TPU is used to modify the waste ABS to treat waste with waste, which has good economic and environmental benefits.

Description

technical field [0001] The invention relates to the technical field of recycling of waste polymer materials, in particular to a recycled ABS composite material which is synergistically modified by waste TPU elastomer and inorganic rigid material and a preparation method thereof. Background technique [0002] ABS resin is a ternary resin copolymerized by three monomers, acrylonitrile (acrylonitrile), 1,3-butadiene (butadiene), and styrene (sryrene). , polystyrene (PS), polyvinyl chloride (PVC), polyethylene (PE), ABS] one. my country's ABS has a wide range of applications and can be used in electronic appliances, auto parts, construction industry, aerospace and other industries. With the improvement of people's consumption level and the acceleration of product replacement, more and more waste ABS is produced. Among these waste ABS resins, the waste that can be obtained by physical sorting accounts for about 30% to 65%, so the recycling of waste ABS resin has huge economic an...

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 Patents(China)
IPC IPC(8): C08L55/02C08L75/04C08K3/26C08K9/04C08K3/34
CPCC08K2003/265C08K2201/011C08L55/02C08L2207/04C08L75/04C08K3/26C08K9/04C08K3/346
Inventor 王静荣徐海萍杨丹丹
Owner SHANGHAI SECOND POLYTECHNIC UNIVERSITY