Thermoplastic composite, method for preparing thermoplastic composite, and injection-molded product

Patent metadata

Field	Value
Publication number	US-10400091-B2
Application number	US-201415523122-A
Country	US
Kind code	B2
Filing date	Oct 31, 2014
Priority date	Oct 31, 2014
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

Provided is a thermoplastic composite, a method for preparing a thermoplastic composite, and an injection-molded product. The thermoplastic composite comprises 35-75% by weight of a thermoplastic resin, 5-45% by weight of a non-cellulosic organic fiber, and 5-20%) by weight of hollow glass microspheres, based on 100% by weight of the total weight of the thermoplastic composite.

First claim

What is claimed is:

1. An injection-molded product comprising a thermoplastic composite which has been subjected to supercritical foaming injection molding; wherein the thermoplastic composite comprises 35-75% by weight of a thermoplastic resin, 5-45% by weight of a non-cellulosic organic fiber, and 5-20% by weight of hollow glass microspheres, based on 100% by weight of the total weight of the thermoplastic composite.

2. The injection-molded product according to claim 1 , wherein the thermoplastic resin is one or more selected from polypropylene, polyethylene, polyvinyl chloride, polystyrene, an ethylene-vinyl acetate copolymer, an acrylonitrile-styrene-butadiene copolymer, and nylon 6.

3. The injection-molded product according to claim 1 , wherein the non-cellulosic organic fiber is one or more selected from a nylon 66 fiber, a polyethylene terephthalate fiber, a polypropylene terephthalate fiber, a polyphenylene sulfide fiber, a polyether ether ketone fiber, and an aramid fiber.

4. The injection-molded product according to claim 1 , wherein the higher melting peak of the non-cellulosic organic fiber is 60° C. or more higher than that of the thermoplastic resin.

5. The injection-molded product according to claim 1 , wherein the non-cellulosic organic fiber has a diameter of 5-70 μm.

6. The injection-molded product according to claim 1 , wherein the hollow glass microspheres have a particle diameter of 5-100 μm, a density of 0.3-0.8 g/cm 3 , and a compressive strength greater than 37.9 MPa.

7. The injection-molded product according to claim 1 , wherein the thermoplastic composite further comprises one or more of an inorganic filler, a compatibilizer, a toughener, and an antioxidant.

8. The injection-molded product according to claim 7 , wherein the inorganic filler is one or more selected from a glass fiber, a carbon fiber, a basalt fiber, talc, and montmorillonite.

9. The injection-molded product according to claim 1 , wherein the thermoplastic composite comprises 15-30% by weight of the non-cellulosic organic fiber and 5-10% by weight of the hollow glass microsphere, based on 100% by weight of the total weight of the thermoplastic composite.

10. The injection-molded product according to claim 2 , wherein the thermoplastic resin is one or more selected from polypropylene, polyethylene, polyvinyl chloride, polystyrene, an ethylene-vinyl acetate copolymer, an acrylonitrile-styrene-butadiene copolymer, and nylon 6.

11. The injection-molded product according to claim 10 , wherein, the thermoplastic resin is one or more selected from polypropylene and polyethylene.

12. The injection-molded product according to claim 11 , wherein the non-cellulosic organic fiber is one or more selected from a nylon 66 fiber, a polyethylene terephthalate fiber, and a polypropylene terephthalate fiber.

13. The injection-molded product according to claim 10 , wherein the non-cellulosic organic fiber is one or more selected from a nylon 66 fiber, a polyethylene terephthalate fiber, and a polypropylene terephthalate fiber.

Assignees

• 3M Innovative Properties Co
• Hou Jingqiang

Inventors

• Hou Jingqiang
• Yalcin Baris
• Ren Pu
• Zhou Yinjie
• Jiang Xuchu
• Yu Xuetao

Classifications

• C08L2205/20

  Hollow spheres · CPC title

• C08L2205/16

  Fibres; Fibrils · CPC title

• C08L77/10

  Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids · CPC title

• C08L77/06

  Polyamides derived from polyamines and polycarboxylic acids (C08L77/10 takes precedence) · CPC title

• C08L77/02

  Polyamides derived from omega-amino carboxylic acids or from lactams thereof (C08L77/10 takes precedence) · CPC title