Red-brown composite material doped with manganese tungstate modified ASA and preparation method thereof

A technology for manganese tungstate modification and composite materials, which is applied in the field of reddish-brown composite materials doped with manganese tungstate modified ASA and its preparation. Temperature, beneficial to environmental protection and human health, reducing the effect of adding

Active Publication Date: 2019-02-15
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the problems existing in the prior art are: infrared composite materials improve the heat aging resistance of plastics by adding heat-resistant modifiers, and impart color to products by adding colorants. Most of these additives are toxic and cannot meet the requirements of environmental protection.

Method used

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  • Red-brown composite material doped with manganese tungstate modified ASA and preparation method thereof
  • Red-brown composite material doped with manganese tungstate modified ASA and preparation method thereof
  • Red-brown composite material doped with manganese tungstate modified ASA and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] (1) Preparation of reddish-brown filler: according to the ratio of raw materials described in Table 1, MnCO 3 Add in the dilute hydrochloric acid of pH=3 and stir evenly (1 gram of MnCO 3 / 300ml dilute hydrochloric acid); then add Zn to it 5 (OH) 6 (CO 3 ) 2 , continue to stir to form a large amount of white massive precipitate; ultrasonic dispersion for 5 minutes, the massive precipitate is dispersed into fine particles, forming a uniform MnCO 3 -Zn 5 (OH) 6 (CO 3 ) 2 -HCl suspension; Na 2 WO 4 2H 2 O was dissolved in deionized water to prepare a solution with a concentration of 0.04mol / L, and then the solution was added to the MnCO 3 -Zn 5 (OH) 6 (CO 3 ) 2- in the HCl suspension, stirred for 15 minutes to make it evenly mixed; adjusted the pH to 5 with dilute hydrochloric acid with pH = 1, and transferred to the reaction kettle; put the reaction kettle in an oven, and kept it at 150°C for 6 hours; Wash twice with deionized water and absolute ethanol su...

Embodiment 2

[0045] Embodiments 2, 3, and 4 all follow the above-mentioned steps, and the ratios of the required raw materials are shown in Table 1 and Table 2.

[0046] Table 1 general formula is Mn 0.7 Zn 0.3 Mo x W 1-x o 4 Raw material ratio and ingredient list of reddish-brown filler

[0047]

[0048] Table 2 Proportion of reddish-brown composite material

[0049]

[0050]

[0051] In order to check the near-infrared reflection performance of the present invention doped manganese tungstate modified ASA reddish-brown composite material, to evaluate its thermal aging resistance, the reddish-brown composite material in the embodiment described in Table 2 was compared with the commercially available ASA Resins were compared with materials (comparative examples) prepared in the same manner as in the examples. Among them, the instrument used for testing the reflectance is an ultraviolet-visible-near-infrared spectrophotometer (Shimadzu Company, Japan, UV-3600), BaSO 4 As a re...

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Abstract

The invention discloses a red-brown composite material sped with manganese tungstate modified ASA and a preparation method thereof. The red-brown composite material comprises the following componentsin percentage by weight: 84.05-90.35% of ASA (acrylonitrile styrene acrylate copolymer) resin, 9-15% of a red-brown filler, 0.05-0.20% of a coupling agent A, 0.1-0.25% of a coupling agent B, and 0.5%of a lubricant, wherein the red-brown filler is powder with general formula of Mn0.7Zn0.3MoxW1-xO4, and x in the formula is equal to 0.0, 0.1, 0.3 or 0.5. The red-brown composite material doped with manganese tungstate modified ASA provided by the invention has good heat aging resistance and is environmentally friendly; meanwhile, an ASA plastic product is endowed with a red-brown color, and the color spectrum is widened.

Description

technical field [0001] The invention belongs to the technical field of infrared composite materials, in particular to a reddish-brown composite material doped with manganese tungstate-modified ASA with good heat aging resistance and environmental friendliness and a preparation method thereof. Background technique [0002] Plastics will age rapidly when exposed to sunlight outdoors. In addition to ultraviolet rays and oxygen in the air causing plastic aging, near-infrared light in sunlight also has a significant impact on the aging of plastics. Because in the entire solar spectrum, the near-infrared region (700-2500nm) accounts for 52% of the total energy, therefore, the energy in the near-infrared region accumulates on the surface of the plastic, which will cause the temperature of the plastic surface to rise sharply, thereby accelerating the aging process, which is Plastics age due to heat. Therefore, if the reflectivity of plastics in the near-infrared band can be improve...

Claims

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Application Information

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IPC IPC(8): C08L51/04C08L91/06C08K9/06C08K9/04C08K3/22
CPCC08L51/04C08L2201/08C08L91/06C08K9/06C08K9/04C08K3/22
Inventor 韩爱军姚凌云叶明泉陈昕丁成杨计玲张羽张奎
Owner NANJING UNIV OF SCI & TECH
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