Fire-resistant imitated 'Xuan paper'

A rice paper and fire-resistant technology, which is used in the preparation and application of new inorganic fire-resistant paper, can solve the problems of turning into ashes, and achieve the effect of high retention rate and good physical strength performance

Active Publication Date: 2018-12-25
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the flammability of rice paper is its most fatal weakness. Looking back at history,

Method used

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  • Fire-resistant imitated 'Xuan paper'
  • Fire-resistant imitated 'Xuan paper'
  • Fire-resistant imitated 'Xuan paper'

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] 0.617g of silica fibers (6μm in diameter and 3mm in length) were formulated into an aqueous suspension, 2.468g of ultra-long hydroxyapatite nanowires were added, ultrasonically dispersed, and then 0.545g of self-made nano-scale inorganic adhesive was added. The preparation steps of nano-scale inorganic adhesive are as follows: mix sodium silicate, potassium pyrophosphate, aluminum sulfate, and boric acid in water according to the feed ratio (mass ratio) of 6:20:1:2, stir evenly, and prepare nano-scale adhesives through chemical reactions. Inorganic adhesive. The reaction temperature was 35°C, and the reaction time was 60 minutes. Figure 6 A scanning electron microscope image of the obtained nano-scale inorganic adhesive is shown, and it can be seen that the nano-scale inorganic adhesive has a nano-particle shape and a particle size of 20-60 nm. The prepared slurry was filtered and formed on a Kaiser rapid paper sheet former, and the formed paper was pressed (at a pres...

Embodiment 2

[0054] Put the new refractory imitation "xuan paper" obtained in Example 1 into a blast drying oven at 105°C for accelerated aging. 360 days of accelerated aging is equivalent to 3000 years of natural aging. Simulated aging results (see Figure 4 , 5 ) shows that compared with the traditional rice paper, the refractory imitation "Xuan paper" has more excellent durability. After artificial aging for 3000 years, its whiteness is still significantly higher than that of the traditional rice paper without aging; The ultralong nanowires of hydroxyapatite did not change significantly, while the fibers in traditional rice paper degraded to a certain extent.

Embodiment 3

[0056] The novel refractory imitation "xuan paper" gained in Example 1 is carried out anti-mildew test, and concrete method is: in the first group of experiments, the concentration is 10 6 The spores of three kinds of molds (Aspergillus niger, Trichoderma longibrachiae, and Trichoderma globosa) in cfu / ml were inoculated into red Bengal culture medium respectively, and then traditional rice paper (raw and cooked rice paper) and refractory imitation "Xuan paper" were placed in the On the culture medium inoculated with mold spores, place them in a microbial incubator with a temperature of 30°C and a humidity of 90%, cultivate them for 4 days, and observe the reproduction of mold spores on the paper. In the second set of experiments, the concentration was 10 4 The spores of three kinds of molds (Aspergillus niger, Trichoderma longibranchus, and Trichoderma globosa) with cfu / ml were sprayed on traditional rice paper (raw and cooked rice paper) and refractory imitation "Xuan paper" ...

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Abstract

The invention relates to fire-resistant imitated 'Xuan paper'. The fire-resistant imitated 'Xuan paper' comprises an ultra-long hydroxyapatite nanowire, an inorganic fiber and a nano-scale inorganic adhesive; the diameter of the ultra-long hydroxyapatite nanowire is 2-100nm, and the length thereof ranges from 20 micrometers to 2 millimeters; the diameter of the inorganic fiber is 1-40 micrometers,and the length thereof is 1-12mm; the particle diameter of the nano-size inorganic adhesive in the form of nanoparticles is 5-100nm.

Description

technical field [0001] The invention belongs to the field of preparation and application of novel inorganic fire-resistant paper, and in particular relates to a novel inorganic fire-resistant imitation "Xuan paper" prepared from hydroxyapatite ultra-long nanowires as the main raw material. Background technique [0002] Xuan paper is a unique art treasure of our country and is well-known at home and abroad. Xuan paper, as the best carrier of Chinese calligraphy and painting art, has provided reliable writing materials for the record, inheritance and development of Chinese civilization in the course of thousands of years of development, and has played an important role in promoting the development of Chinese calligraphy and painting art. In 2009, it was selected into the "Representative List of the Intangible Cultural Heritage of Humanity" by UNESCO. [0003] Traditional rice paper is made of green sandalwood bark in Jingxian County, Anhui Province and straw in Shatian, and i...

Claims

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Application Information

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IPC IPC(8): D21H27/00D21H13/38D21H13/46D21H17/68D21H17/66D21H17/65
CPCD21H13/38D21H13/46D21H17/65D21H17/66D21H17/68D21H27/00
Inventor 朱英杰董丽颖
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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