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Polyvinyl chloride card matrix materials for production of noncontact IC card and method for making same

A polyvinyl chloride, non-contact technology, applied in the production of polyvinyl chloride card-based materials for non-contact IC cards and its preparation field, can solve the problems of poor light-shielding performance, large amount of rutile titanium dioxide, and high price

Inactive Publication Date: 2005-11-30
孟永华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, rutile titanium dioxide is used in a large amount, the price is high, and the light-shielding property is not very good.

Method used

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  • Polyvinyl chloride card matrix materials for production of noncontact IC card and method for making same

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: making non-contact IC card polyvinyl chloride card base material

[0027] 1. Preparation,

[0028] Weigh 750kg of polyvinyl chloride powder, 80kg of anatase titanium dioxide, 80kg of nano calcium carbonate, 0.6kg of aluminum powder, 64.4kg of reinforcing agent, 15kg of thermal stabilizer and 10kg of lubricant.

[0029] 2. Processing technology:

[0030] 1. Stir the molten material at high speed. Put the above-mentioned raw materials into the high-speed mixer according to the proportion, fully stir and mix evenly, and stir until the material temperature is 105-115°C;

[0031] 2. Stir and cool the material at a low speed. Discharge the high-speed stirred material to a low-speed cooling mixer for cooling and stirring, so that the temperature of the material drops to 40-45°C;

[0032] 3. Plasticization of extruder: Evenly input the cooled material into planetary extruder for plasticization, and the temperature of planetary extruder is controlled at 155-165°C...

Embodiment 2

[0038] The difference between embodiment 2 and embodiment 1 is that the proportioning of each raw material is different: 800kg of polyvinyl chloride powder, 60kg of anatase titanium dioxide, 60kg of nano calcium carbonate, 0.4kg of aluminum silver powder, 50kg of reinforcing agent, heat stabilizer 14.6kg and lubricant 15kg. All the other are with embodiment 1.

Embodiment 3

[0040] The difference between embodiment 3 and embodiment 1 is that the proportioning of each raw material is different: 755kg of polyvinyl chloride powder, 70kg of anatase titanium dioxide, 70kg of nano-calcium carbonate, 0.5kg of aluminum silver powder, 80kg of reinforcing agent, heat stabilizer 10kg and lubricant 14.5kg. All the other are with embodiment 1.

[0041] The reinforcing agent is a copolymer of methyl methacrylate, butadiene and styrene, code-named MBS. The heat stabilizer is octyltin mercaptide, the model is 17MOK-N. The lubricant is stearic acid. The fineness of aluminum powder is 280 mesh superfine aluminum powder. The fineness of nano calcium carbonate is 80 nanometers.

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Abstract

The invention relates to a PVC card-based material used to produce non-contact IC card. The invention chooses PVC as main ingredient, anatase type titanium dioxide as light proof dope, aluminum dust as light proof additional materials, nanometer calcium carbonate as filler, intensifier, heat stabilizer and lubricant as adjuvant. The invention has advantages of fine anti-dazzle property, low cost and fine tenacity.

Description

Technical field: [0001] The invention relates to a hard sheet. In particular, it relates to a polyvinyl chloride card base material for making non-contact IC cards and a preparation method thereof. Background technique: [0002] With the continuous advancement of science and technology and the continuous application of new technologies, the use of non-contact IC cards has been rapidly developed, and the application fields are becoming more and more extensive. In addition to the characteristics of ordinary PVC hard sheet, the card base material required for making non-contact IC cards has higher requirements in terms of light-shielding, rigidity, and toughness. At present, all PVC card base material factories at home and abroad use rutile titanium dioxide as the main material for shading performance, and use ordinary light calcium carbonate as filler to make contactless cards. However, the amount of rutile titanium dioxide is large, the price is high, and the shading proper...

Claims

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Application Information

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IPC IPC(8): C08L27/06
Inventor 孟永华
Owner 孟永华
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