Brown polystyrene sheet and manufacturing method thereof

A polystyrene sheet, polystyrene technology, applied in the direction of coating, etc., can solve the problems of low thermal deformation temperature, poor weather resistance, and lack of aesthetics, achieve uniform color, good light transmittance, and increase aesthetics. Effect

Inactive Publication Date: 2015-04-22
WINKO PLASTICS
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, traditional polystyrene materials have many shortcomings, such as brittleness, low impact strength, easy to crack, poor flame retardancy, poor weather resistance, low heat distortion temperature, etc., and are not easy to s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Brown polystyrene sheet and manufacturing method thereof
  • Brown polystyrene sheet and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] The brown polystyrene sheet provided by the present invention has a composition ratio by weight (%): GPPS (general-purpose polystyrene) 85-90%; HIPS (high impact polystyrene) 5-10%; coffee color Masterbatch 5-10%.

[0025] In the present invention, the processing technology of the brown polystyrene sheet is as follows figure 1 Shown, including:

[0026] 1. First weigh GPPS, HIPS and coffee masterbatch according to the weight ratio, and mix them evenly; put the mixed raw materials into the hopper, blow them to the dryer through Roots blower for drying treatment;

[0027] 2. Pump the mixture from the dryer through the vacuum pump and send it to the lower hopper of the extruder;

[0028] 3. The above mixture is melted and extruded on an extruder, and the melting temperature is controlled between 180°C and 250°C;

[0029] 4. After the impurities are filtered out by the filter, the melt is sent to the die to be extruded and cast into a thick sheet. The temperature in the die is cont...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a brown polystyrene sheet and a manufacturing method thereof. The brown polystyrene sheet comprises the following components in percentage by weight: 85-90 percent of general-purpose polystyrene, 5-10 percent of high-impact polystyrene and 5-10 percent of brown master batch. The manufacturing method comprises the following steps: mixing the raw materials in proportion; melting and extruding the mixture by using an extruder at the temperature of 180 to 250 DEG C; feeding the melt material to a die head and casting into a thick sheet at the temperature of 200 to 250 DEG C; longitudinally and horizontally drawing and shaping the thick sheet in sequence to obtain a thin sheet; treating the thin sheet by processes of edge trimming, thickness measurement, spraying of silicon oil on double surfaces, rolling up, ageing treatment and splitting. The sheet is good in rigidity and toughness; by uniformly mixing the brown master batch and reasonably controlling the preheating temperature, the sheet is uniform in color, good in light transmittance and more attractive in appearance; in addition, the sheet is easy to stack up after being coated with the silicon oil; therefore, the sheet can be widely applied to product packaging of foods, medicines, electronics, clothes, toys and the like.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a brown polystyrene sheet and a manufacturing method thereof. Background technique [0002] Biaxially oriented polystyrene film is a new type of green packaging material developed in recent years. Compared with traditionally used polyethylene and polyvinyl chloride films, it has high strength, high rigidity, non-toxicity, easy degradation, and easy coloring. , good gloss and transparency, easy processing and other advantages, it is widely used in the packaging of various items such as handicrafts, daily necessities, metal products, especially food. At present, the amount of biaxially oriented polystyrene film in developed countries such as the United States, Canada, and Japan has accounted for more than 60% of all films. [0003] However, traditional polystyrene materials have many shortcomings, such as brittleness, low impact strength, easy to crack, poor flame retard...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C08L25/06C08L51/04C08J7/04B29C69/02B29C55/14B29C71/04
Inventor 李康党宏丁秀芳
Owner WINKO PLASTICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap