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Polystyrol material with low surface tension and producing method thereof

A low surface tension, polystyrene sheet technology, used in other household appliances, flexible coverings, applications, etc., can solve problems such as high price, and achieve the effect of low cost and reduced surface tension

Active Publication Date: 2009-03-11
INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface tension of polytetrafluoroethylene in fluoropolymer is 18.6mN / m, which has good anti-sticking performance and mature application, but it is expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] This embodiment provides a polystyrene material with low surface tension and its production method.

[0045] 1. Composition of raw materials:

[0046] This low surface tension polystyrene material is prepared from the following raw materials:

[0047] Polystyrene: 1000Kg

[0048] Polydimethylsiloxane: 8Kg

[0049] Polytetrafluoroethylene: 10Kg.

[0050] Among them, two surface additives are added to the polystyrene raw material: polydimethylsiloxane and polytetrafluoroethylene.

[0051] The physical and chemical indicators of the polydimethylsiloxane additive used in this embodiment are as follows:

[0052] project unit index Exterior / Colorless transparent liquid, no visible impurities kinematic viscosity mm 2 / s(25℃) 500 Refractive index (25℃) 1.4016 Flash point ℃ 318 Volatile matter 150℃，3h，％ 0.9015 arsenic PPM ≤1 heavy metal (as Pb)PPM ≤1 Catalyst residue PPM ≤0.1 Surface Tension ...

Embodiment 2

[0084] This embodiment provides another polystyrene material with low surface tension and its production method.

[0085] 1. Composition of raw materials:

[0086] This low surface tension polystyrene material is prepared from the following raw materials:

[0087] Polystyrene: 1000Kg

[0088] Polydimethylsiloxane: 20Kg

[0089] Polytetrafluoroethylene: 30Kg.

[0090] Among them, two surface additives are added to the polystyrene raw material: polydimethylsiloxane and polytetrafluoroethylene.

[0091] The physical and chemical indicators of the polydimethylsiloxane additive used in this embodiment are as follows:

[0092] project unit index Exterior / Colorless transparent liquid, no visible impurities kinematic viscosity mm 2 / s(25℃) 500 Refractive index (25℃) 1.4016 Flash point ℃ 318 Volatile matter 150℃，3h，％ 0.9015 arsenic PPM <1

heavy metal (as Pb)PPM <1

Catalyst residue PPM ≤0.1 Surface...

Embodiment 3

[0124] This embodiment provides another polystyrene material with low surface tension and its production method.

[0125] 1. Composition of raw materials:

[0126] This low surface tension polystyrene material is prepared from the following raw materials:

[0127] Polystyrene: 1000Kg

[0128] Polydimethylsiloxane: 25Kg

[0129] Polytetrafluoroethylene: 40Kg.

[0130] Among them, two surface additives are added to the polystyrene raw material: polydimethylsiloxane and polytetrafluoroethylene. The physical and chemical properties of the polydimethylsiloxane and polytetrafluoroethylene additives used are Index is identical with embodiment 1 and embodiment 2.

[0131] 2. Raw material allocation method

[0132] Weigh the required polystyrene raw material particles, polydimethylsiloxane and polytetrafluoroethylene by weight. Add the polystyrene raw material into the high-speed mixer (CBEL-25 vertical mixer Kawamoto Machinery), start mixing, then slowly pour polydimethylsiloxan...

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Abstract

The invention relates to a polystyrene material with low surface tension, which is prepared by the following raw materials in weight portion: 1,000 portions of polystyrene, 5 to 25 portions of dimethyl silicone polymer and 5 to 40 portions of polytetrafluoroethylene. The polystyrene material with low surface tension introduces two adequate surface auxiliary agents with low surface tension value in a polystyrene system by means of blending; and the two surface auxiliary agents introduced are food level, and have absolute safety and low cost. The invention also provides a method for preparing raw materials of the polystyrene material with low surface tension, relates to a method for producing the polystyrene material with low surface tension, in particular to a method for producing a polystyrene sheet with low surface tension, and also relates to a packaging material for food which is processed by the polystyrene sheet with low surface tension. The methods can reduce the surface tension value of the polystyrene material and then reduce the adherence degree of fermented milk on the surface of the polystyrene material, and also has the advantage of simple and convenient operation method.

Description

technical field [0001] The present invention relates to a kind of low surface tension polystyrene material, and a kind of raw material preparation method of low surface tension polystyrene material, also relate to a kind of production method of low surface tension polystyrene material, especially a kind of production low surface tension polystyrene material The method for the tension polystyrene sheet further relates to a food packaging material processed from the low surface tension polystyrene sheet. Background technique [0002] At present, commercially available yogurt usually uses plastic packaging containers, such as plastic cups, plastic boxes, plastic bottles or plastic jars. When opening yogurt or drinking yogurt, usually some yogurt will adhere to the wall of the above-mentioned plastic packaging container and cannot be poured out. This is a waste for consumers, so it is urgent to find an effective way to solve this type of problem. [0003] The packaging material...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L83/04C08L27/18B29C47/92B29C47/12B29B9/06B65D65/00B29L7/00B29C48/30B29C48/92
CPCB29C47/92B29C48/9185B29C48/04B29C48/08B29C48/914B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895B29C2948/92904B29C2948/92923
Inventor 郭利春白雪韩永生刘卫星胡新宇
Owner INNER MONGOLIA MENGNIU DAIRY IND (GRP) CO LTD
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