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High-strength engineering plastic and preparation method thereof

An engineering plastic and high-strength technology, which is applied in the field of high-strength engineering plastics and its preparation, can solve the problems of difficult removal and collection of plastic masterbatch dust, and low strength of engineering plastics.

Inactive Publication Date: 2022-05-27
王建涛
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of high-strength engineering plastics and preparation method thereof, solve the following technical problems: (1) solve the technical problem that the strength of engineering plastics in the prior art is not high; (2) solve the engineering plastics processing problem in the prior art The technical problem that the residual dust on the surface of the plastic masterbatch is difficult to remove during the process; (3) Solve the problem that the plastic masterbatch in the prior art is easy to generate dust due to the collision of the surface during the transportation process, and the generated dust is easy to pollute the processing environment and is difficult to collect technical issues

Method used

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  • High-strength engineering plastic and preparation method thereof
  • High-strength engineering plastic and preparation method thereof
  • High-strength engineering plastic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A high-strength engineering plastic is prepared from the following raw materials in parts by weight: 75 parts of high-density polyethylene, 10 parts of castor oil-modified hyperbranched polyurethane, 1 part of polytetrafluoroethylene, 3 parts of ethylene-methacrylic acid copolymer, 1.2 parts of silane coupling agent, 10 parts of reinforcing filler, 12 parts of synthetic rubber, 0.6 part of flame retardant, 0.4 part of antioxidant;

[0039] Wherein, this high-strength engineering plastic is prepared through the following steps:

[0040] Step 1: Weigh high-density polyethylene, polytetrafluoroethylene and ethylene-methacrylic acid copolymer into the reactor, heat and melt, add silane coupling agent, flame retardant and antioxidant into the reactor, mix and stir, to obtain a premix;

[0041] Step 2: keep the premix in a molten state, weigh the castor oil-modified hyperbranched polyurethane, reinforcing filler, and synthetic rubber and add them to the reactor, mix and stir...

Embodiment 2

[0052] A high-strength engineering plastic is prepared from the following raw materials in parts by weight: 95 parts of high-density polyethylene, 20 parts of castor oil-modified hyperbranched polyurethane, 1.5 parts of polytetrafluoroethylene, 8 parts of ethylene-methacrylic acid copolymer, 2.8 parts of silane coupling agent, 18 parts of reinforcing filler, 18 parts of synthetic rubber, 6 parts of flame retardant, 2.6 parts of antioxidant;

[0053] Wherein, this high-strength engineering plastic is prepared through the following steps:

[0054] Step 1: Weigh high-density polyethylene, polytetrafluoroethylene and ethylene-methacrylic acid copolymer into the reactor, heat and melt, add silane coupling agent, flame retardant and antioxidant into the reactor, mix and stir, to obtain a premix;

[0055] Step 2: keep the premix in a molten state, weigh the castor oil-modified hyperbranched polyurethane, reinforcing filler, and synthetic rubber and add them to the reactor, mix and s...

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Abstract

According to the high-strength engineering plastic and the preparation method thereof, acrylic acid double bonds are introduced into castor oil modified hyperbranched polyurethane, and the castor oil modified hyperbranched polyurethane can be subjected to a cross-linking reaction with an acrylamide methyl substituted cellulose ester polymer in the processing process to form a network structure, so that the tensile modulus, the strength and the thermal deformation temperature of the high-strength engineering plastic are improved, and the mechanical properties of the engineering plastic are improved. The reinforcing filler has excellent compatibility, the impact strength of the prepared high-strength engineering plastic is 14-17 MPa according to GB / T 1843-2008 measurement, and the shore hardness of the high-strength engineering plastic is 82-94 according to GB / T 2411-2008 measurement. The invention further discloses cleaning equipment, through cooperation of the friction roller and the lifting shell which ascends and descends periodically, dust existing on the surfaces of the plastic master batches can be efficiently separated from the surfaces of the plastic master batches, meanwhile, generated flying dust is cleaned at the upper position and the lower position at the same time, and the dust on the surfaces of the plastic master batches is effectively removed.

Description

technical field [0001] The invention relates to the technical field of plastic preparation, in particular to a high-strength engineering plastic and a preparation method thereof. Background technique [0002] Engineering plastics refer to industrial plastics used as industrial parts or shell materials. They are plastics with excellent strength, impact resistance, heat resistance, hardness and aging resistance. They have good high temperature resistance, corrosion resistance, wear resistance, etc. Therefore, it can replace metal for some mechanical parts. [0003] The strength of the existing engineering plastics is not high, and at the same time, the dust remaining on the surface of the plastic masterbatch is difficult to remove during the processing process, and the plastic masterbatch is likely to generate dust due to the collision of the surface during the transportation process, and the generated dust is likely to cause pollution to the processing environment. collect. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L75/16C08L83/04C08L27/18C08L23/08C08K13/06C08K9/04C08K3/04C08K3/36C08K5/5425C08K3/34C08K3/26C08K3/38B29B9/06B29B13/06B29B13/10
CPCC08L23/06B29B9/06B29B13/065B29B13/10C08K2003/265C08K2003/387C08K2201/014C08K2201/011C08L2201/02C08L2207/062C08L75/16C08L83/04C08L27/18C08L23/0869C08K13/06C08K9/04C08K3/042C08K3/36C08K5/5425C08K3/346C08K3/26C08K3/38
Inventor 不公告发明人
Owner 王建涛