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Steel slag PVC calendering film base material and preparation method thereof

A technology of base material and calendered film, which is applied in the field of steel slag/PVC calendered film base material and its preparation, can solve the problems of reducing material rigidity and strength, not having fiber characteristics, and large resource consumption at one time, so as to improve compatibility, Effect of improving inorganic properties, improving wear resistance and weather resistance

Active Publication Date: 2022-07-22
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the toughened PVC such as traditional methyl methacrylate-butadiene-styrene terpolymer, chlorinated polyethylene, polyurethane elastomer, methacrylate-acrylate copolymer, etc., but will reduce the rigidity and strength of the material industry problems; the use of inorganic rigid nanoparticles and elastomers to compound modified PVC has high price, high resource consumption industry bottlenecks, and the problem that the wear resistance and weather resistance of PVC need to be further improved; the use of conical vertical mills and ordinary The tire vertical mill can only process the material to a fineness of 450 mesh and a specific surface area of ​​500m 2 The technical limitation of / kg; the use of ball milling consumes high energy and the processed ultrafine powder forms a spherical shape, which does not have the deficiency of fiber characteristics

Method used

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  • Steel slag PVC calendering film base material and preparation method thereof
  • Steel slag PVC calendering film base material and preparation method thereof
  • Steel slag PVC calendering film base material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0029]

[0030] The general plastic is polyvinyl chloride.

[0031] The elastomer is nitrile rubber.

[0032] The composite plasticizer is a mixture of dibutyl phthalate and diethyl phthalate, and its mass ratio is 2:1.

[0033] The stabilizer is BS-105 rare earth composite heat stabilizer.

[0034] The superfine steel slag powder is the superfine steel slag powder of 1500 meshes which is ground to 1500 mesh by superfine tire vertical mill (also known as "ultrafine roller mill"), which is pressurized and stuffy slag in the converter. The chemical composition of the autoclaved slag in the converter is CaO (48.43%), Fe 2 O 3 (22.77%), SiO 2 (14.11%), MgO (6.10%), Al 2 O 3 (2.29%), MnO (1.88%), P 2 O 5 (1.57%) and others (2.85%).

[0035] The surface-structure modifier is a mixture of phosphoric acid, glycerol, ethylene glycol, coupling a...

Embodiment 2

[0040] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0041]

[0042] The general plastic is polyvinyl chloride.

[0043] The elastomer is nitrile rubber.

[0044] The composite plasticizer is a mixture of dibutyl phthalate and diethyl phthalate, and its mass ratio is 1:3.

[0045] The stabilizer is BS-105 rare earth composite heat stabilizer.

[0046] The steel slag superfine powder is the converter drum slag which is ground to 2500 mesh steel slag superfine powder by the superfine tire vertical mill (also known as "ultrafine roller mill"). The chemical composition of the converter drum slag is CaO (47.56%), Fe 2 O 3 (22.00%), SiO 2 (13.45%), MgO (8.34%), MnO (2.41%), P 2 O 5 (2.30%), Al 2 O 3 (2.18%), TiO 2 (0.84%), Cr 2 O 3 (0.28%), Na 2 O (0.16%), S (0.03%) and others (0.45%).

[0047] The surface-structure modifier is a mixture of phosphoric acid, glycerol, ethylene glycol, cou...

Embodiment 3

[0052] Taking the preparation of product 100g of the present invention as an example, the used component and its mass ratio are:

[0053]

[0054] The general plastic is polyvinyl chloride.

[0055] The elastomer is nitrile rubber.

[0056] The composite plasticizer is a mixture of dibutyl phthalate and diethyl phthalate, and its mass ratio is 1:2.

[0057] The stabilizer is BS-105 rare earth composite heat stabilizer.

[0058] The steel slag superfine powder is a converter slag wind-quenched slag that is ground to a 2000 mesh steel slag superfine powder by a superfine tire vertical mill (also known as "ultrafine roller mill"). The chemical composition of converter air quenched slag is CaO (46.86%), Fe 2 O 3 (27.18%), SiO 2 (10.75%), MgO (4.81%), MnO (2.32%), P 2 O 5 (2.47%), Al 2 O 3 (3.38%), TiO 2 (1.16%) and others (1.07%).

[0059] The surface-structure modifier is a mixture of phosphoric acid, glycerol, ethylene glycol, coupling agent K550 and deionized wa...

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Abstract

The invention provides a steel slag / PVC calendering film base material and a preparation method thereof, and belongs to the field of PVC calendering film base materials. A superfine tire vertical mill is combined with a surface-structure modifier to form modified steel slag superfine powder, and the modified steel slag superfine powder, an elastomer, a composite plasticizer and a stabilizer are used for preparing the steel slag / PVC calendering film base material. On one hand, the modified steel slag superfine powder contains a silicate system, RO phase and the like have the characteristics of wear resistance and weather resistance, and the modified steel slag superfine powder is uniformly dispersed in the PVC, so that the wear resistance and weather resistance of the PVC in the environment can be improved; on the other hand, the modified steel slag superfine powder has inorganic rigidity and surface activity and can replace an expensive primary resource Nano-BaSO4, an inorganic rigidity-elastomer compound is formed by the modified steel slag superfine powder and the elastomer, the toughness of the PVC calendering film base material can be improved, and the strength and rigidity of the PVC calendering film base material can be guaranteed. The solid waste steel slag is fully utilized, and the current industrial development requirements of energy conservation, environmental protection and circular economy are met.

Description

technical field [0001] The invention belongs to the field of PVC calendered film base material, and particularly relates to a steel slag / PVC calendered film base material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) is a general-purpose plastic with a wide range of applications. It has the advantages of low price, high strength, high modulus, flame retardancy, and corrosion resistance. However, its low notched Izod impact strength and poor thermal stability are limited. its scope of use. Traditionally, methyl methacrylate-butadiene-styrene terpolymer, chlorinated polyethylene, polyurethane elastomer, methacrylate-acrylate copolymer, etc. are commonly used to toughen PVC, but toughening will also To reduce the rigidity and strength of the material, the use of inorganic rigid particles, especially nanoparticles and elastomers to composite modified PVC can not only improve the toughness of the material, but also ensure that the stren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L9/02C08K5/12C08K3/22C08K3/36C08K3/32C08K9/02C08K9/04C08K9/06C08J5/18
CPCC08J5/18C08J2327/06C08J2409/02C08K5/12C08K2003/2206C08K2003/2272C08K2003/222C08K2003/2227C08K3/36C08K3/32C08K9/02C08K9/04C08K9/06Y02W30/91
Inventor 张浩胡道庆龙红明吴胜华朱子康季益龙王倩宗志芳杜晓燕王艳茹
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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