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Film prepared from waste thermoplastic elastomer and laminate thereof

A thermoplastic elastomer, thermoplastic elastic technology, applied in the direction of synthetic resin layered products, layered products, chemical instruments and methods, etc., can solve the problems of the earth being overwhelmed, poor biodegradability, pollution, etc.

Pending Publication Date: 2021-07-13
FOSHAN KING WONDER HI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, while plastic products bring convenience to people's lives, the pollution of waste plastics to the environment has caused the earth to be overwhelmed
Thermoplastic elastomers have serious disadvantages, such as poor biodegradability, and are not easy to degrade after being buried in soil
It turns out that neither landfill nor incineration is a good method of disposal

Method used

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  • Film prepared from waste thermoplastic elastomer and laminate thereof
  • Film prepared from waste thermoplastic elastomer and laminate thereof
  • Film prepared from waste thermoplastic elastomer and laminate thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0094] Film preparation:

[0095] The melt of the above formula can flow out through the gap at the front end of the die to form a film. After leaving the die, the melt passes through a short gap and reaches the surface of the casting roll at a low temperature to be rapidly cooled and shaped; the melt of the above formula can also be The melt is blown out through the high-pressure air of the rotating die to form a tubular film. After leaving the die, the melt passes through a short gap and reaches the low-temperature casting roll surface to be cooled and shaped rapidly; hole forming), the flat plastic hard sheet is heated and softened, then vacuum adsorbed on the surface of the mold, and formed after cooling;

[0096] The above formula can also be plasticized to close to the viscous flow temperature through a series of horizontal rollers rotating in opposite directions, so that the material can be squeezed and stretched to become a thin sheet product with a certain thickness, ...

Embodiment 1

[0100] Example 1: Effect of Film Thickness

[0101] According to above-mentioned thin film preparation process, prepare a series of thin films, investigate the influence of the thickness of thin film on water vapor permeability, hydrostatic pressure, washing times (the hydrostatic pressure after how many times), the result is shown in Table 1, wherein prepared thin film is not Contains fresh thermoplastic elastomer;

[0102] Table 1 The relationship between the thickness and the performance of typical products

[0103]

[0104] The data in Table 1 shows that the thinner the film thickness, the higher the moisture permeability; the thicker the film thickness, the higher the hydrostatic pressure, and the smaller the impact of the number of washings on the hydrostatic pressure.

[0105] Therefore, when considering the application of the film of the present invention, the influence of thickness must be taken into consideration, and an appropriate thickness must be selected.

Embodiment 2

[0106] Example 2: Effect of Viscosity Modifier Content

[0107] According to the above-mentioned film preparation process, a series of films were prepared, and the influence of the dosage of viscosity modifier on moisture permeability, hydrostatic pressure, number of washings (hydrostatic pressure after how many times), hand feeling (characterized by elastic modulus) was investigated, and the result See Table 2, wherein the prepared film does not contain fresh thermoplastic elastomer, and the thickness of the film is 15 μm;

[0108] Table 2 Influence relationship of viscosity modifier on product performance

[0109]

[0110] From the data in Table 2, it can be found that for ordinary waste thermoplastic elastomers, if no viscosity regulator is added or the concentration of the regulator is too low, only liquid substances can be obtained during film production, and film formation or stable film cannot be formed. Of course, if the waste thermoplastic elastomer itself contain...

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Abstract

The invention discloses a film prepared from a waste thermoplastic elastomer and a laminate thereof. The composition for forming the film comprises 0.5%-99.8% of the waste thermoplastic elastomer, 0.01%-3% of a viscosity modifier, 0.01%-10% of a slipping agent for preventing the prepared film from being bonded when the prepared film is rolled, and 0%-99% of a fresh thermoplastic elastomer. The thermoplastic elastomer is a polyester elastomer, a nylon elastomer, a biologically sourced nylon elastomer and / or a biologically sourced polyester elastomer and a graft thereof; the viscosity modifier is a reactive viscosity modifier and / or a non-reactive viscosity modifier; the slipping agent is fatty acid and esters thereof, fatty acid amide, metallic soap, hydrocarbon, an organosilicon compound, stearic acid, butyl stearate and / or ethylene bis stearamide. The thermal sewing position has the advantages of being good in wind resistance, breathable, capable of blocking virus liquid, smooth in appearance, free of wrinkles, soft in hand feeling and the like. The prepared film has good moisture permeability, washing performance, tensile strength and required hand feeling softness.

Description

technical field [0001] The invention relates to the recycling of waste plastics, especially waste thermoplastic elastomers; more specifically, the invention relates to a film formed from waste thermoplastic elastomers and a laminate thereof. Background technique [0002] Thermoplastic elasticity (TPE for short) has plasticity at high temperature and can be replasticized into shape, but it is elastic at room temperature. Due to its excellent mechanical properties, processing properties and weather resistance, thermoplastic elastomers have been developed to a very high level, and new varieties continue to appear, which have replaced some traditional rubber and plastic materials in large quantities, and are widely used in wires and cables. Sealing materials, diaphragm products, shoe industry, automobile industry, machinery industry and various industrial molded products. According to the different types of main components of TPE, it can be roughly divided into seven categories...

Claims

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Application Information

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IPC IPC(8): C08L77/00C08L67/00C08K5/053C08K5/17C08J5/18B32B5/02B32B7/12B32B27/12B32B27/34B32B27/36
CPCC08J5/18B32B5/022B32B5/02B32B27/12B32B27/36B32B27/34B32B7/12B32B2272/00C08J2377/00C08J2367/00C08K5/053C08K5/17Y02W30/62B32B2274/00B32B27/18B32B27/20B32B2307/7246B32B2437/02B32B2439/00B32B2439/70C08J2300/30C08J2300/26C08J2300/22C08K5/1515C08L101/00B32B5/024C08L2207/20
Inventor 林裕卫许颖博曾东辉颜志坚
Owner FOSHAN KING WONDER HI TECH CO LTD
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