A kind of eucommia gum/natural latex sponge product and preparation method thereof

A technology of natural latex and sponge products, which is applied in the field of eucommia gum/natural latex sponge products and its preparation, can solve the problems of less application and less registration, and achieve the effect of expanding application prospects

Active Publication Date: 2022-02-25
CHEMCHINA ZHUZHOU RUBBER RES & DESIGN INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are not many reports and applications of sponges prepared from Eucommia latex at home and abroad.

Method used

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  • A kind of eucommia gum/natural latex sponge product and preparation method thereof
  • A kind of eucommia gum/natural latex sponge product and preparation method thereof
  • A kind of eucommia gum/natural latex sponge product and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of Eucommia gum / natural rubber composite sponge with a ratio of 5 / 95:

[0035] (1) Preparation of mixed glue:

[0036] Calculated by mass

[0037]

[0038] Add Eucommia latex to natural rubber latex and mix evenly, add Pingping and O, stir evenly and remove ammonia to 0.1%, then add other rubber additives, stir for 8-12 hours at 30-35°C, and mature , the ripening time is 24 hours;

[0039] (2) Preparation of gel:

[0040] Calculated by mass

[0041]

[0042] After the mature composite glue is mixed at a speed of 500-1500 rpm and filled with air to quickly foam to a specified volume, it is soaked at a slow speed of 100-200 rpm, and then diluted with double the amount of soft water. The active agent zinc oxide is soaked at a speed of 200-400 rpm at a medium speed for 2 minutes, and finally sodium fluorosilicate and potassium hydroxide are added together, and treated at a speed of 200-400 rpm at a medium speed. After 2 minutes, the foam is finally po...

Embodiment 2

[0046] Preparation of Eucommia gum / natural rubber composite sponge with a ratio of 10 / 90:

[0047] (1) Preparation of mixed glue:

[0048] Calculated by mass

[0049]

[0050] Add Eucommia latex to natural rubber latex and mix evenly, add Pingping and O, stir evenly and remove ammonia to 0.1%, then add other rubber additives, stir for 8-12 hours at 30-35°C, and mature , the ripening time is 24 hours;

[0051] (2) Preparation of gel:

[0052] Calculated by mass

[0053]

[0054] After the mature composite glue is mixed at a speed of 500-1500 rpm and filled with air to quickly foam to a specified volume, it is soaked at a slow speed of 100-200 rpm, and then diluted with double the amount of soft water. The active agent zinc oxide is soaked at a speed of 200-400 rpm at a medium speed for 2 minutes, and finally sodium fluorosilicate and potassium hydroxide are added together, and treated at a speed of 200-400 rpm at a medium speed. After 2 minutes, the foam is finally p...

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Abstract

A kind of eucommia gum / natural latex sponge product, it is made of eucommia gum latex, natural latex, vulcanizing agent, active agent, accelerator, antiaging agent, filler, stabilizer, pH value adjustment, gelling agent, foaming agent, foam stabilizer The eucommia gum emulsion and the natural latex are all concentrated emulsions; the preparation method of the above-mentioned eucommia gum / natural latex sponge product is to first mix the eucommia gum emulsion with the natural latex in a certain proportion Uniformly remove ammonia through mechanical stirring and ventilation at the same time, and then add various powder additives and emulsified oil additives into the mixed rubber after being ground into a dispersion. After aging, fill in air under mechanical stirring to produce The foam is foamed, and after foaming, the foam is solidified with a gelling agent, and the solidified foam is vulcanized, washed and dehydrated, and dried to obtain the Eucommia gum / natural latex sponge. The successful development of the eucommia / natural rubber sponge in the present invention expands the application prospect of the eucommia gum and promotes the technological progress of the eucommia gum.

Description

technical field [0001] The invention relates to a latex sponge and a preparation method thereof, in particular to a eucommia gum / natural latex sponge product and a preparation method thereof. Background technique [0002] Eucommia gum originates from the Eucommia ulmoides tree, and mainly exists in the leaves, bark and seeds of Eucommia ulmoides, among which the leaves contain 2% to 4% of glue, the skin contains 8% to 10% of glue, and the seeds contain 10% to 30% of glue. Precious high-quality natural rubber resources, currently my country's eucommia cultivation area is about 350,000 hectares, accounting for more than 99% of the world's total eucommia planting area, with unique resource advantages. Eucommia gum, like palaquium gutta in the tropical rain forests of Southeast Asia and mimusops balata in the tropical rain forests of South America, both contain trans-1,4-polyisoprene, so Eucommia gum is also known as guttapercha or balata. The chemical composition of eucommia g...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/02C08K13/02C08K3/34C08K3/22C08J9/14
CPCC08J9/142C08J9/0095C08J9/0066C08J2203/12C08J2307/02
Inventor 郭舜华陈俐蔡克平
Owner CHEMCHINA ZHUZHOU RUBBER RES & DESIGN INST
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