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Straw modified elastomer pen rod, and preparation method thereof

An elastomer and straw technology, applied in the direction of pen, printing, writing utensils, etc., can solve the problems of low surface hardness and thermal deformation temperature of ultra-high molecular weight polyethylene, poor bending strength and creep performance, etc., to improve wear resistance and Feel, improve antibacterial properties, feel good effect

Inactive Publication Date: 2017-12-15
CHONGQING JINHAOMEI MELAMINE PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with other engineering plastics, ultra-high molecular weight polyethylene (UHMW-PE) has the disadvantages of low surface hardness and heat distortion temperature, poor bending strength and creep performance

Method used

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  • Straw modified elastomer pen rod, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) putting 10 parts by weight of wheat straw and 4 parts by weight of soybean straw into 10% sodium bicarbonate solution and soaking for 6 hours, washing them with clean water, and then performing dispersing and refining treatment to obtain straw pulp fibers;

[0031] (2) 25 parts by weight of styrene-butadiene-styrene block copolymer, 75 parts by weight of styrene-isoprene-styrene block copolymer, 46 parts by weight of ultra-high molecular weight polyethylene (molecular weight 200000) , 0.4 parts by weight of azodicarbonamide, 0.3 parts by weight of sodium bicarbonate, 0.7 parts by weight of dicumyl peroxide, 2 parts by weight of lanthanum oxide, and 0.8 parts by weight of zinc oxide. Mix evenly in the machine, add it to the hopper of the twin-screw extruder, and through melting reaction, add 10 parts by weight of carbon black, 5 parts by weight of wollastonite powder and 2 parts by weight of talc powder in the fourth zone by side feeding , and then extruded and granu...

Embodiment 2

[0034] (1 Put 10 parts by weight of wheat straw and 4 parts by weight of soybean straw into 10% sodium bicarbonate solution and soak for 6 hours, wash them with clean water, and then perform disentanglement and grinding to obtain straw pulp fibers;

[0035] (2) 20 parts by weight of styrene-butadiene-styrene block copolymer, 80 parts by weight of styrene-isoprene-styrene block copolymer, 46 parts by weight of ultra-high molecular weight polyethylene (molecular weight 200000) , 0.4 parts by weight of azodicarbonamide, 0.3 parts by weight of sodium bicarbonate, 0.7 parts by weight of dicumyl peroxide, 2 parts by weight of lanthanum oxide, and 0.8 parts by weight of zinc oxide. Mix evenly in the machine, add it to the hopper of the twin-screw extruder, and through melting reaction, add 10 parts by weight of carbon black, 5 parts by weight of wollastonite powder and 2 parts by weight of talc powder in the fourth zone by side feeding , and then extruded and granulated to obtain the...

Embodiment 3

[0038] (1 Put 10 parts by weight of wheat straw and 4 parts by weight of soybean straw into 10% sodium bicarbonate solution and soak for 6 hours, wash them with clean water, and then perform disentanglement and grinding to obtain straw pulp fibers;

[0039] (2) 33 parts by weight of styrene-butadiene-styrene block copolymer, 67 parts by weight of styrene-isoprene-styrene block copolymer, 46 parts by weight of ultra-high molecular weight polyethylene (molecular weight 200000) , 0.4 parts by weight of azodicarbonamide, 0.3 parts by weight of sodium bicarbonate, 0.7 parts by weight of dicumyl peroxide, 2 parts by weight of lanthanum oxide, and 0.8 parts by weight of zinc oxide. Mix evenly in the machine, add it to the hopper of the twin-screw extruder, and through melting reaction, add 10 parts by weight of carbon black, 5 parts by weight of wollastonite powder and 2 parts by weight of talc powder in the fourth zone by side feeding , and then extruded and granulated to obtain the...

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Abstract

The invention belongs to the field of straw modified elastomer material, and more specifically relates to a straw modified elastomer pen rod, and a preparation method thereof. The straw modified elastomer pen rod is prepared from 100 parts of a styrene segmented copolymer, 40 to 50 parts of polyethylene, 10 to 30 parts of straw, 15 to 20 parts of a filling material, 0.5 to 1 part of a foaming agent, 0.5 to 1 part of dicumyl peroxide, and 2 to 5 parts of an antiseptic. The invention also discloses a preparation method of the straw modified elastomer pen rod. The straw modified elastomer pen rod possesses wear resistance, is excellent in handfeel, and possesses certain antibacterial properties.

Description

technical field [0001] The invention relates to the field of straw-modified elastomer materials, in particular to a straw-modified elastomer pen holder and a preparation method thereof. Background technique [0002] General pencil adopts wooden penholder, and its material consumption wood is big, is unfavorable for environmental protection. The manufacturing process of wooden pencils is relatively complicated, with high pollution, high cost, difficult quality control, little change in appearance, and the pen core is toxic and easy to break. In order to overcome the shortcomings of wooden pencils, there are now plastic pencils, but the ingredients of the pen holder and the refill are unreasonable, the elasticity is poor, children are easy to break when using or playing, the refill is laborious to write, the coloring is poor, and the product The cost is higher. [0003] Styrene-butadiene-styrene block copolymer is a new type of improvement obtained by selective hydrogenation...

Claims

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Application Information

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IPC IPC(8): C08L53/02C08L23/06C08L97/02C08K13/02C08K3/22C08K3/34C08K3/04C08J9/10C08J9/08B43K3/00
CPCB43K3/00C08J9/0061C08J9/0071C08J9/0085C08J9/08C08J9/103C08J2203/02C08J2203/04C08J2203/18C08J2353/02C08J2423/06C08K2003/221C08K2003/2296C08K2201/011C08K2201/014C08L53/02C08L2203/14C08L2205/025C08L2205/035C08L2205/16C08L2207/068
Inventor 屈朝辉屈志豪袁小丽
Owner CHONGQING JINHAOMEI MELAMINE PROD CO LTD
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