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A scratch-resistant degradable card substrate and its preparation process

A preparation process and scratch-resistant technology, applied in the field of thermoplastic polyester, can solve the problems of reduced wetting tension on the surface of the material, unfavorable secondary processing of punching and carding, and overall brittleness of the material, so as to achieve a simple and easy process and easy industrial production. , Good scratch resistance effect

Active Publication Date: 2018-02-06
江苏华信高新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the adoption of this process will make the product have the following disadvantages: (1) Both sides are PMMA, which cannot be heat-sealed with other PHA card bodies (2) After the surface hardening agent is cross-linked and cured, it will cause the surface of the material to wet Tension decreases, making it difficult to print, and it will also cause the material to become brittle as a whole, which is not conducive to secondary processing such as card punching

Method used

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  • A scratch-resistant degradable card substrate and its preparation process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Scratch-resistant degradable card substrate and its preparation process

[0035] Material formula: upper layer: PMMA resin 92.8wt%, plasticizer tributyl citrate 5wt%, lubricant stearin 0.7wt%, antioxidant triisooctyl phosphite 0.5wt%, ultraviolet absorber 2 -Hydroxy-4-n-octyloxybenzophenone 0.5 wt%, antistatic agent ethoxylated oleylamine 0.5 wt%. Lower layer: PHA resin 90.1 wt%, plasticizer acetyl tributyl citrate 8wt%, lubricant ethylene glycol monostearate 0.8wt%, antioxidant triisooctyl phosphite 0.6wt%, antistatic agent Ethoxylated oleylamine 0.5 wt%.

[0036] Molding:

[0037] A. Raw material preparation: Weigh raw materials according to the formula, dry PMMA and PHA resins to a moisture content of 0.3%;

[0038] B. Material mixing: Use high-speed mixer to carry out two-stage mixing process for materials. Upper layer PMMA: high-speed mixing section: material temperature 70°C, spindle speed 1500rpm, mixing time 30min; low-speed mixing section: materi...

Embodiment 2

[0044] Example 2: Scratch-resistant degradable card substrate and its preparation process

[0045] Material formula: upper layer: PMMA resin 97.8wt%, plasticizer tributyl citrate 2wt%, lubricant stearin 0.1wt%, antioxidant triisooctyl phosphite 0.1wt%. Lower layer: PHA resin 90.6wt%, plasticizer acetyl tributyl citrate 5wt%, tributyl citrate 3wt%, lubricant ethylene glycol monostearate 0.8wt%, antioxidant triisooctyl phosphite Esters 0.6wt%.

[0046] Molding:

[0047] A. Raw material preparation: Weigh raw materials according to the formula, dry PMMA and PHA resins to a moisture content of 0.3%;

[0048] B. Material mixing: Use high-speed mixer to carry out two-stage mixing process for materials. Upper layer PMMA: high-speed mixing section: material temperature 70°C, spindle speed 1500rpm, mixing time 30min; low-speed mixing section: material temperature 40°C, spindle speed 80rpm, mixing time 15min; lower layer PHA: high-speed mixing section: material temperature 70°C, spin...

Embodiment 3

[0054] Example 3: Scratch-resistant degradable card substrate and its preparation process

[0055] Material formula: upper layer: PMMA resin 92.8wt%, plasticizer tributyl citrate 5wt%, lubricant stearin 0.5wt%, ethylene glycol distearate 0.2wt%, antioxidant phosphorous acid Tri-isooctyl ester 0.2wt%, triethyl phosphite 0.3wt%, UV absorber 2-hydroxy-4-n-octyloxybenzophenone 0.5wt%, antistatic agent ethoxylated oleylamine 0.3wt %, ethoxylated dodecylamine 0.2 wt %. Lower layer: PHA resin 94.4 wt %, plasticizer acetyl tributyl citrate 5 wt %, lubricant ethylene glycol monostearate 0.3 wt %, glyceryl stearate 0.1 wt %, antioxidant triisophosphite Octyl ester 0.2wt%.

[0056] Molding:

[0057] A. Raw material preparation: Weigh the raw materials according to the formula, dry the PMMAA and PHA resins to a moisture content of 0.3%;

[0058] B. Material mixing: Use high-speed mixer to carry out two-stage mixing process for materials. Upper layer PMMA: high-speed mixing section: m...

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Abstract

The invention discloses a scratch-resistant degradable card base material and a preparation process thereof. The base material comprises an upper layer and a lower layer, and the components of the upper layer and the contents of each component are as follows: PMMA resin 92.8-97.8 wt%, plasticizer 2- 5wt%, lubricant 0.1‑0.7wt%, antioxidant 0.1‑0.5wt%, ultraviolet absorber 0‑0.5wt%, antistatic agent 0‑0.5wt%; the lower layer components and the contents of each component are as follows: PHA resin 90.1‑94.4 wt%, plasticizer 5‑8wt%, lubricant 0.4‑0.8wt%, antioxidant 0.2‑0.6wt%, antistatic agent 0‑0.5 wt%. The base material of the invention has good scratch resistance, high light transmittance, good dimensional stability when heated, and can be heat-sealed to make cards; the process flow is simple and easy to realize industrial production, and has excellent industrial application value.

Description

technical field [0001] The invention belongs to the technical field of thermoplastic polyester, and in particular relates to a scratch-resistant degradable card substrate and a preparation process thereof. Background technique [0002] Polyhydroxyalkanoate (PHA) is a kind of thermoplastic aliphatic biopolyester synthesized by prokaryotic microorganisms as carbon source and energy storage under the condition of carbon and nitrogen nutrition imbalance. The mechanical properties of PHA are similar to some thermoplastic materials such as polyethylene and polypropylene. Using PHA to make cards can effectively solve the environmental problems caused by the difficulty of card recycling. The existing PHA film and sheet can already meet the basic requirements of the card, but due to the poor scratch resistance of the PHA film (pencil hardness: 2B), the card surface will be damaged due to repeated scratches during use. Fuzzy, which affects the use of the card, generally requires the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/08B32B27/18B32B27/30B32B27/36C08L33/12C08L67/04B29C41/52
Inventor 何培武
Owner 江苏华信高新材料有限公司
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