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Low-water-absorption pearl wool and preparation method thereof

A technology of low water absorption and pearl cotton, which is applied in the field of polymer materials, can solve the problems of low water absorption and other problems, and achieve the effect of strong dispersion ability and superior physical and mechanical properties

Pending Publication Date: 2022-05-10
广东泓硕新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no technology that can control the water absorption of pearl cotton at 0.1-0.5mg / cm 3 For this reason, according to the needs of customers in actual production, our R&D personnel have developed a kind of pearl cotton with low water absorption rate after a long period of exploration, and provided corresponding preparation methods

Method used

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  • Low-water-absorption pearl wool and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A kind of low water absorption pearl cotton, raw material comprises:

[0031] Low-density polyethylene 9000g;

[0032] Polypropylene-polyethylene polymer particle A 3000g;

[0033] Graft cotton fiber 1400g;

[0034] Silane coupling agent 500g;

[0035] Baking soda 200g;

[0036] Sodium lignosulfonate 1500g;

[0037] Molecularly distilled monoglyceride 600g.

[0038] Preparation of pearl cotton with low water absorption: 1) Add low-density polyethylene, silane coupling agent, molecularly distilled monoglyceride and grafted cotton fiber into the reaction kettle, stir evenly and raise the temperature to 116°C-125°C, and maintain it for 5-9min. 2) Add polypropylene-polyethylene polymer particles A, sodium lignosulfonate and baking soda, stir evenly and continue to heat up to 128-132°C, feed into foaming machine for foaming, heat preservation and pressure foaming treatment to maintain 5- 8min, then extrude from the mould; 3) cooling molding, obtains the pearl cotton wi...

Embodiment 2

[0040] A kind of low water absorption pearl cotton, raw material comprises:

[0041] Low-density polyethylene 9800g;

[0042] Polypropylene-polyethylene polymer particle A 4000g;

[0043] Graft cotton fiber 1200g;

[0044] Silane coupling agent 400g;

[0045] Baking soda 300g;

[0046] Sodium lignosulfonate 1200g;

[0047] Molecularly distilled monoglyceride 300g.

[0048] Preparation of pearl cotton with low water absorption: 1) Add low-density polyethylene, silane coupling agent, molecularly distilled monoglyceride and grafted cotton fiber into the reaction kettle, stir evenly and raise the temperature to 116°C-125°C, and maintain it for 5-9min. 2) Add polypropylene-polyethylene polymer particles A, sodium lignosulfonate and baking soda, stir evenly and continue to heat up to 128-132°C, feed into foaming machine for foaming, heat preservation and pressure foaming treatment to maintain 5- 8min, then extrude from the mould; 3) cooling molding, obtains the pearl cotton wi...

Embodiment 3

[0050] A kind of low water absorption pearl cotton, raw material comprises:

[0051] Low-density polyethylene 9200g;

[0052] Polypropylene-polyethylene polymer particles A 3200g;

[0053] Graft cotton fiber 1300g;

[0054] Silane coupling agent 200g;

[0055] Baking soda 400g;

[0056] Sodium lignosulfonate 1000g;

[0057] Molecularly distilled monoglyceride 500g.

[0058]Preparation of pearl cotton with low water absorption: 1) Add low-density polyethylene, silane coupling agent, molecularly distilled monoglyceride and grafted cotton fiber into the reaction kettle, stir evenly and raise the temperature to 116°C-125°C, and maintain it for 5-9min. 2) Add polypropylene-polyethylene polymer particles A, sodium lignosulfonate and baking soda, stir evenly and continue to heat up to 128-132°C, feed into foaming machine for foaming, heat preservation and pressure foaming treatment to maintain 5- 8min, then extrude from the mould; 3) cooling molding, obtain the pearl cotton wit...

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Abstract

The invention provides pearl wool with low water absorption rate. The pearl wool is prepared from the following raw materials in parts by weight: 90-100 parts of low-density polyethylene, 30-40 parts of polypropylene-polyethylene polymerized particles, 12-14 parts of grafted cotton fibers, 2-5 parts of a silane coupling agent, 2-6 parts of baking soda, 8-15 parts of sodium lignin sulfonate and 3-6 parts of molecular distilled monoglyceride. Compared with common pearl wool, the low-water-absorption pearl wool disclosed by the invention not only has slightly higher water absorption performance, but also is superior to the addition of grafted cotton fibers, and has more excellent physical and mechanical properties.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to pearl cotton with low water absorption rate and a preparation method thereof. Background technique [0002] Polyethylene foamed cotton has a non-crosslinked closed-cell structure, also known as EPE pearl cotton. It is a new type of environmentally friendly packaging material. The glue is fragile, deformed, and has the disadvantages of poor recovery. It has many advantages such as water and moisture resistance, shock resistance, sound insulation, heat preservation, good plasticity, strong toughness, recycling, environmental protection, and strong impact resistance. It also has good chemical resistance. , is an ideal substitute for traditional packaging materials. [0003] Pearl cotton foaming material is a new type of environmentally friendly packaging and filling materials. Its superior properties are getting more and more people's recognition, so its use ...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08L51/06C08L1/02C08L97/00C08J9/08
CPCC08J9/08C08J9/0061C08J2205/052C08J2203/02C08J2323/06C08J2451/06C08J2401/02C08J2497/00
Inventor 罗南坤侯彩云
Owner 广东泓硕新材料科技有限公司
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