Low-VOC (volatile organic compound) polypropylene composite material and preparation method thereof

A composite material and polypropylene technology, applied in the field of low VOC polypropylene composite material and its preparation, can solve the problems of low devolatilization efficiency, reduced VOC removal effect, and reduced effective time, so as to suppress aldehyde and ketone pollution, improve VOC removal efficiency and VOC reduction effect

Inactive Publication Date: 2018-07-13
大河宝利材料科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult for the repellant added by this method to be stably dispersed in the PP melt; and the three-stage vacuum reduces the effective time of the repellant in the system, and the devolatilization efficiency is not high; Unloading at the same feeding port of the machine will cause the repellant to be heated and volatilized in advance in the feeding section or solid conveying section, thereby further reducing its VOC removal effect

Method used

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  • Low-VOC (volatile organic compound) polypropylene composite material and preparation method thereof
  • Low-VOC (volatile organic compound) polypropylene composite material and preparation method thereof
  • Low-VOC (volatile organic compound) polypropylene composite material and preparation method thereof

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Embodiment 1

[0044] A VOC remover is a mixture, the mixture includes a stripping agent, fumed silica and a styrenic block copolymer, the stripping agent is isopropanol, and the styrenic block copolymer is At least one of styrene-butadiene-styrene block copolymer, styrene-isoprene-styrene block copolymer or styrene-ethylene-butylene-styrene block copolymer, so In the VOC remover, the mass percentages of each component are as follows:

[0045] Stripping agent 8%

[0046] Fumed silica 12%

[0047] Styrenic block copolymer 80%.

[0048] According to the above formula, each component was weighed and put into a mixer, the temperature was controlled at 30° C., the stirring speed was 200 r / min, and stirred at a constant speed for 25 minutes to obtain the VOC remover.

Embodiment 2 9

[0050] A low-VOC polypropylene composite material, comprising polypropylene resin, the VOC remover described in Example 1, a first additive and a second additive, the first additive comprising elastomer, inorganic mineral powder and antioxidant, the Elastomer is the ethylene-octene copolymer POE8999 that DOW company manufactures, and described inorganic mineral powder is the talc powder of commercially available average particle diameter 5 μ m, and described antioxidant comprises main antioxidant and secondary antioxidant, and described main The antioxidant is commercially available primary antioxidant 1010, and the secondary antioxidant is commercially available secondary antioxidant 168. In this embodiment, the addition amount of the second additive is 0. The raw material formula of each component of the low-VOC polypropylene composite material is shown in Table 1, and its preparation method comprises the following steps:

[0051] Weigh polypropylene resin, elastomer, inorga...

Embodiment 10

[0053]The difference between embodiment ten and embodiment five is that polypropylene resin, elastomer, inorganic mineral powder and antioxidant are weighed according to the formula, mixed on a high-speed mixer for 8 minutes, and then added from the main feeding port of the twin-screw extruder . The raw material formula of each component of the low-VOC polypropylene composite material is shown in Table 1.

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Abstract

The invention discloses a low-VOC (volatile organic compound) polypropylene composite material and a preparation method thereof. The low-VOC polypropylene composite material is prepared from polypropylene, a VOC remover and additives according to the following mass percentages: 65 to 95 percent of the polypropylene, 5 to 10 percent of the VOC remover, 0 to 37 percent of a first additive and 0 to 5percent of a second additive, wherein the VOC remover is a mixture; the mixture comprises a stripping agent, fumed silica and a styrene block copolymer. By use of complexing action of the stripping agent and the fumed silica, the VOC content of the low-VOC polypropylene composite material is reduced. The preparation method of the low-VOC polypropylene composite material solves the problem that the stripping agent is volatilized too early due to a relatively low boiling point as the stripping agent in the VOC remover is added from a main feeding port, and the VOC removal efficiency of the VOCremover is improved.

Description

technical field [0001] The invention relates to a polypropylene composite material, in particular to a low-VOC polypropylene composite material and a preparation method thereof. Background technique [0002] Polypropylene composite materials are widely used in the interior and exterior of automobiles, and are the fastest growing general-purpose thermoplastic materials. During use, when the polypropylene composite material is in a high temperature environment, the volatile organic compounds (VOC) remaining in the polypropylene composite material will emit and pollute the environment. VOC substances mainly include hydrocarbons, benzene, aldehydes, etc., mainly derived from residual monomers in the synthesis of resins such as polypropylene and elastomers, additives such as antioxidants, light stabilizers, lubricants, toners, and modified polymers. The small molecules produced by degradation during the processing of propylene materials, etc. Therefore, in order to reduce the VO...

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L53/02C08L23/08C08K13/04C08K7/26C08K3/34C08K5/05
CPCC08K2201/003C08L23/12C08L2205/03C08L53/02C08K7/26C08K5/05C08L23/0815C08K13/04C08K3/34
Inventor 杨俊安小强冯勋民罗煜聂锦
Owner 大河宝利材料科技(苏州)有限公司
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