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PVC in-lubricant

A technology of internal lubricant and catalyst, which is applied in the field of plastics, can solve the problems of limited resource consumption, poor quality of internal lubricant, and physical health damage, and achieve the effects of improving environmental pollution, reducing costs, and improving product quality

Inactive Publication Date: 2009-08-05
夏森林 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Because of the inherent molecular structure and polymerization method of polyvinyl chloride, if it is directly used as the only raw material to produce plastic products, its chemical and physical properties have great defects: for example: polyvinyl chloride has poor stability to light and heat
In this way, the raw material cost of the internal lubricant is high, and human edible oil is used, which consumes a lot of limited resources
On the other hand, waste oil is discarded in large quantities, causing great environmental pollution, and even some unscrupulous small restaurants use waste oil harmful to human body to eat for guests, causing serious harm to human health
Moreover, the quality of the internal lubricating oil processed from salad oil and other edible oils is poor, and it is easy to precipitate during use and adhere to equipment such as rollers, causing great inconvenience to customers in production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Vegetable oleic acid: 78.6%, diethylene glycol: 21.2%, catalyst: 0.2%. The catalyst is preferably an organic compound of titanium-tin-calcium, which has the best catalytic effect.

Embodiment 2

[0050] Vegetable oleic acid: 93.6%, diethylene glycol: 6.3%, catalyst: 0.1%.

Embodiment 3

[0052] Vegetable oleic acid: 55%, diethylene glycol: 44.7%, catalyst: 0.3%.

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PUM

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Abstract

The invention discloses a PVC internal lubricant comprising vegetable-oil acid taken as raw material, diglycol or / and glycerol and catalyst. The PVC internal lubricant has the preparation method that vegetable-oil acid extracted from waste oil is used as the raw material, then at least the diglycol or / and the glycerol are added in the vegetable-oil acid, and finally the catalyst is added. Because the price of the vegetable-oil acid is far lower than that of edible oil such as salad oil, soybean oil, and the like, the cost of the PVC internal lubricant is greatly reduced; in addition, the internal lubricant is not easy to dissolve out and can not adhere to other equipment, thereby enhancing the quality of products; in the meantime, the useless waste oil is recovered and changed into valuable, thereby effectively improving the environmental pollution and having positive social meaning.

Description

【Technical field】 [0001] The invention relates to the field of plastics, in particular to a PVC internal lubricant for PVC engineering additives. 【Background technique】 [0002] PVC (polyvinyl chloride) is a chlorinated polymer of PE (polyethylene). It is one of the most widely used plastics and is still used in large quantities. Its consumption is second only to polyethylene and polypropylene. There are many forms of PVC products, which can be divided into three categories: hard PVC, soft PVC, and PVC paste. Rigid polyvinyl chloride is mainly used in extruded products such as pipes, door and window profiles, sheets, etc., as well as injection molded parts such as pipe joints and electrical parts, and extrusion blown bottle products, which account for more than 65% of the consumption of polyvinyl chloride. Soft polyvinyl chloride is mainly used in calendered sheets, automotive interior accessories, handbags, films, labels, wires and cables, medical products, etc. [0003] ...

Claims

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Application Information

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IPC IPC(8): C08K5/09C08K5/053C08L27/06
Inventor 夏森林徐璐莎
Owner 夏森林