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Surface scratch self-repairing plastic flooring

A floor leather, self-healing technology, applied in the field of floor leather, to achieve excellent microwave absorption characteristics, increase the number of hydrogen bonds, and improve the effect of cross-linking

Inactive Publication Date: 2020-02-11
界首市鑫豪塑胶有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to design a self-repairing floor leather with scratches on the surface, using thermoplastic polyurethane and epoxy resin as the matrix, and preparing graphene composite powder, which can solve the problem that the existing thermoplastic polyurethane needs to be heated above 60 °C. Insufficiency of surface self-repair at low temperature

Method used

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  • Surface scratch self-repairing plastic flooring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A surface scratch self-repairing floor leather, the preparation steps of which are as follows:

[0023] 1) Preparation of graphene composite powder: put lanthanum nitrate into an ethanol solution with a mass concentration of 6 times its weight and a concentration of 15%, and then add graphene with 4 times the weight of lanthanum nitrate and 0.06 times the weight of nano-silver into the ethanol solution. After stirring and mixing , and then ultrasonically treated with a frequency of 100kHz for 15min to obtain a turbid liquid, then the turbid liquid was removed by rotary evaporation and put into a ball mill, and 30% of the weight of lanthanum nitrate was added to the ball mill. 2:1, the ball milling rate of the ball mill is 1000r / min, and the graphene composite powder is obtained after ball milling for 2h, which is for use;

[0024] 2) Blending of raw materials: Take 10.5kg of thermoplastic polyurethane and put it in a small internal mixer and heat it up to 120°C, then ad...

Embodiment 2

[0028] A surface scratch self-repairing floor leather, the preparation steps of which are as follows:

[0029] 1) Preparation of graphene composite powder: put lanthanum nitrate into an ethanol solution with a mass concentration of 6 times its weight and a concentration of 15%, and then add graphene that is 3 times the weight of lanthanum nitrate and 0.05 times the weight of nano-silver into the ethanol solution. After stirring and mixing , and then ultrasonically treated with a frequency of 100kHz for 15min to obtain a turbid liquid, then the turbid liquid was removed by rotary evaporation and put into a ball mill, and 20% of the weight of lanthanum nitrate was added to the ball mill. 2:1, the ball milling rate of the ball mill is 1200 r / min, and the graphene composite powder is obtained after ball milling for 1 h, which is ready for use;

[0030]2) Blending of raw materials: Take 10.5kg of thermoplastic polyurethane and put it in a small internal mixer and heat it up to 120°...

Embodiment 3

[0034] A surface scratch self-repairing floor leather, the preparation steps of which are as follows:

[0035] 1) Preparation of graphene composite powder: put lanthanum nitrate into an ethanol solution with a mass concentration of 10 times its weight and a concentration of 30%, and then add graphene with 4 times the weight of lanthanum nitrate and 0.10 times the weight of nano-silver into the ethanol solution. After stirring and mixing Then, the turbid liquid was obtained by ultrasonic treatment with a frequency of 120 kHz for 15 min, and then the turbid liquid was removed by rotary evaporation and put into a ball mill, and 35% of the weight of lanthanum nitrate was added to the ball mill. 2:1, the ball milling rate of the ball mill is 900 r / min, and the graphene composite powder is obtained after ball milling for 2 hours, which is for standby use;

[0036] 2) Blending of raw materials: Take 10.5kg of thermoplastic polyurethane and put it in a small internal mixer and heat it...

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Abstract

The invention relates to the technical field of plastic flooring, particularly to surface scratch self-repairing plastic flooring, wherein the preparation method comprises four steps of graphene composite powder preparation, raw material blending, extrusion molding and composite molding. Compared with the existing common polyvinyl chloride plastic flooring, the plastic flooring prepared by the invention has the following advantages that thermoplastic polyurethane and an epoxy resin are mainly used as matrixes and are subjected to high-temperature kneading to replace a polyvinyl chloride resinso as to make the plastic flooring have the flame retardance and a certain self-repairing capacity of the thermoplastic polyurethane, the thermoplastic polyurethane is modified with castor oil and trimethylolpropane, the prepared graphene loaded nanometer silver-lanthanum nitrate composite powder as a filler is added into the plastic flooring, and the surface scratch self-repairing capacity of theplastic flooring is greatly improved from three aspects by utilizing a large amount of extremely-high activity epoxy groups, hydroxyl groups, ether bonds, amine bonds, ester bonds and other polar groups carried by the epoxy resin.

Description

technical field [0001] The invention relates to the technical field of floor leather, in particular to a surface scratch self-repairing floor leather. Background technique [0002] Floor leather is a kind of floor covering material, which belongs to soft bottom plate and is one of the indispensable floor materials for modern living room decoration. It is widely loved by consumers for its advantages of light weight, elasticity, simple construction and low price. Most of the existing floor leather is made of polyvinyl chloride as the main material, and then various auxiliary additives are added to enhance its performance. Although polyvinyl chloride is cheap, the floor leather prepared from it has poor flame retardancy and insufficient elasticity. In addition, the surface of the floor leather is easy to be scratched during use. If there are too many scratches, it will not only affect the appearance of the floor leather, but also affect its various mechanical properties and re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/14C08L63/00C08K13/06C08K9/12C08K5/12C08K3/04C08K3/08B32B27/40B32B27/38B32B27/18B32B27/22B32B27/20B32B27/12B32B7/12B32B7/08B32B33/00B32B37/10B32B37/12B32B37/06B32B37/08
CPCB32B7/08B32B7/12B32B27/12B32B27/18B32B27/20B32B27/22B32B27/38B32B27/40B32B33/00B32B37/06B32B37/08B32B37/10B32B37/1284B32B2307/3065B32B2307/756B32B2419/04C08K2003/0806C08K2201/011C08L75/14C08L2201/02C08L2205/03C08L63/00C08K13/06C08K9/12C08K5/12C08K3/042C08K3/08
Inventor 肖殿业饶保东
Owner 界首市鑫豪塑胶有限公司
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