Production method of slush-molded silicone rubber artware

A production method and handicraft technology, applied in the production field of slush plastic silicone rubber handicrafts, can solve the problems of human body adverse effects, toxicity, carcinogenicity, etc., and achieve the effects of low density, high resilience and long service life

Inactive Publication Date: 2020-05-01
阜南县富昌恒业工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main auxiliary materials such as plasticizers and anti-aging agents added to polyvinyl chloride are toxic, and the plasticizer DOP in slush-molded polyvinyl chloride plastics mai

Method used

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  • Production method of slush-molded silicone rubber artware

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of production method of plastic slush silicone rubber handicraft comprises the steps:

[0021] (1) In a reaction kettle equipped with a stirrer, a thermometer, a drip inlet, a nitrogen pipe and a reflux device, first add 270 parts of anhydrous xylene and 0.6 part of metal sodium, heat to boiling while stirring under nitrogen, and then Add 100 parts of dimethyldichlorosilane dropwise within 1 hour, keep warm and reflux for 10 hours, a precipitate is formed, filter, wash with methanol first, and then wash with water to obtain white powder polydimethylsilane. In the reaction kettle, add 80 parts of diphenylchlorosilane, 26 parts of boric acid and 4 parts of n-butanol ethyl ether are heated up to 120°C under a nitrogen atmosphere to form a white resin. Then, the temperature is raised to 400°C under vacuum, and the reaction is kept for 1 hour to obtain polyboron Diphenylsiloxane, in the reaction kettle, add 250 parts of polydimethylsilane and 0.125 parts of polyboron ...

Embodiment 2

[0030] A kind of production method of plastic slush silicone rubber handicraft comprises the steps:

[0031] (1) In a reaction kettle equipped with a stirrer, a thermometer, a drip inlet, a nitrogen pipe and a reflux device, first add 270 parts of anhydrous xylene and 0.6 part of metal sodium, heat to boiling while stirring under nitrogen, and then Add 100 parts of dimethyldichlorosilane dropwise within 0.5h, keep warm and reflux for 5h, a precipitate is formed, filter, wash with methanol first, and then wash with water to obtain white powder polydimethylsilane, in the reaction kettle, and then Add 80 parts of diphenylchlorosilane, 26 parts of boric acid and 4 parts of n-butanol ether, raise the temperature to 120°C under a nitrogen atmosphere, and react to form a white resin, then raise the temperature to 400°C under vacuum, and keep it warm for 1 hour to obtain a polymer Borodiphenylsiloxane, in the reaction kettle, add 250 parts of polydimethylsilane and 0.125 parts of poly...

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Abstract

The invention discloses a production method of slush-molded silicone rubber artware, belonging to the technical field of high polymer materials. The slush-molded silicone rubber artware prepared by the preparation method in the invention can prevent harm caused by mistaken eating; and silica gel has good fluidity, and a slush molding process is adopted, so the slush-molded silicone rubber artwarehas high temperature resistance and corrosion resistance, and is high in tensile strength and tearing strength, small in shrinkage rate, high in mold turnover frequency, low in shrinkage rate, free ofrelease of substances such as a low-molecular plasticizer in the crosslinking and using process, unchanged in size, small in shrinkage rate, food-grade, free of toxicity and odor, elastic and comfortable to touch and good in ornamental effect.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a production method of slush-molded silicone rubber handicrafts. Background technique [0002] Slush molding is also called coating molding. It is an important method of making hollow soft products (such as toys) from paste plastic. The advantages of slush molding are low equipment cost, high production speed, and simple process control, but the accuracy of product thickness, quality (weight), etc. is poor. The advantages of slush molding are low equipment cost, high production speed and simple process control. For example, PVC slush molding is used to form the dashboard skin on mid-to-high-end cars. However, using this method on the faces of animals and characters will destroy the aesthetic feeling, so the head adopts the "slush molding" process, also known as condensed coating. The factory heats and melts the plastic and pours it into the open hollow mold. The hol...

Claims

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Application Information

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IPC IPC(8): C08L83/10C08L91/00C08K13/02C08K3/36C08K5/14C08K3/34C08K3/22C08K3/38C08G77/04C08G77/56C08G77/42
CPCC08G77/04C08G77/42C08G77/56C08K2003/2224C08K2003/387C08L83/10C08L2201/08C08L2201/10C08L91/00C08K13/02C08K3/36C08K5/14C08K3/34C08K3/22C08K3/38
Inventor 张恒
Owner 阜南县富昌恒业工艺品有限公司
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